Jobs at Djinni

We’re expanding our team and looking for an experienced In-App Media Buyer to join us.

We’re looking for someone who is already working with a spend-based model, manages daily budgets of $1,000+, and knows how to buy and scale In-App traffic across multiple GEOs.

We are a fast-moving team with quick decision-making, zero unnecessary bureaucracy, and a strong focus on results.

What’s important for us:

• Hands-on experience in iGaming / Gambling;
• Strong expertise in In-App traffic acquisition;
• Practical experience with Unity Ads and Moloco;
• Experience working with spend-based deals;
• Current daily spend of $1,000+;
• Strong understanding of campaign optimization and scaling strategies;
• Proven and active gambling cases within the last 3 months;
 

What we offer:

• Competitive base salary + performance-based bonus system;
• All resources and tools required for launching and scaling campaigns;
• Fully remote work format;
• Freedom in decision-making without micromanagement;
• Opportunity to grow into a Team Lead role.

About us:

• 80+ people in the in-house team;
• Fast-paced environment with direct communication and no unnecessary bureaucracy.

If you have solid experience buying and scaling In-App traffic in the gambling vertical, are confident working with Unity Ads and Moloco, and know how to manage budgets efficiently, we'd love to hear from you.

We’re expanding our team and looking for an experienced Facebook Media Buyer to join us.

We’re looking for someone who is already working with a spend-based model, manages daily budgets of $1,000+, and knows how to buy and scale Facebook traffic across multiple GEOs.

We are a fast-moving team with quick decision-making, zero unnecessary bureaucracy, and a strong focus on results.

What’s important for us:

• Hands-on experience in iGaming / Gambling;
• Strong expertise in Facebook Ads;
• Experience working with spend-based deals;
• Current daily spend of $1,000+;
• Strong understanding of campaign optimization and scaling strategies;
• Proven and active Facebook gambling cases within the last 3 months.

What we offer:

• Competitive base salary + performance-based bonus system;
• All resources and tools required for launching and scaling campaigns;
• Fully remote work format;
• Freedom in decision-making without micromanagement;
• Opportunity to grow into a Team Lead role.

About us:

• 80+ people in the in-house team;
• Fast-paced environment with direct communication and no unnecessary bureaucracy.

If you have solid gambling experience, know how to manage budgets efficiently, and can scale Facebook campaigns profitably, we'd love to hear from you.

Senior Full-Stack Developer (Kotlin / Java / React)
EU only (business trip to Germany for 3–4 days every 6 months)

We&;re looking for a strong Senior Full-Stack Developer to join an enterprise project for one of our long-term clients. We already have several developers successfully working on this project.

Project

A web-based platform for German leasing companies that supports and automates their core business processes.

Requirements
 

6+ years of software development experience
Strong Kotlin & Java
Strong React
Experience with PostgreSQL and/or MongoDB
CI/CD & automated testing
Experience with AI-assisted development
Strong software engineering and problem-solving skills
⭐️ Nice to have
Node.js

 Responsibilities
Develop and enhance full-stack applications
Build scalable backend services with Kotlin & Java
Develop modern React features
Improve architecture and optimize existing modules
Collaborate with Product, QA, and DevOps teams
Participate in code reviews

About Us

Smart Capital Center is an end-to-end, AI-powered platform for Commercial Real Estate (CRE) investment and financial management. We power real-time underwriting, asset management, and portfolio analytics through a combination of live data, workflow automation, and AI-driven insights.

Operating at the intersection of Generative AI, finance, and real estate, we are building systems that digitize and simplify complex financial workflows.

Our clients include leading institutions such as JLL, Pacific Life Insurance Company, and KeyBank. We are a lean, high-performance team building category-defining technology in a $17 trillion industry.

To learn more about our platform and vision, please visit our website.

The Role

We are looking for a Backend Software Engineer with strong experience in building scalable systems and a deep interest in AI-powered applications.

This is a high-impact, hands-on role where you will design and build backend services, integrate AI capabilities, and develop intelligent, agent-driven workflows used in real-world production environments.

You will work closely with product, AI, and engineering teams to deliver reliable, high-performance systems and automation features.

What You Will Do

Backend Development

• Design, build, and maintain backend services using Java (Spring Boot) and Python
• Develop scalable APIs and microservices for data-intensive applications
• Optimize system performance, reliability, and scalability
• Design efficient data models and handle complex integrations

AI & Intelligent Systems

• Implement and integrate AI-powered features into core products
• Design and build agent-based workflows for automation and decision-making
• Apply prompt engineering techniques to improve LLM outputs and behavior
• Work with modern AI frameworks to productionize intelligent systems

Cloud & Infrastructure

• Develop and deploy backend systems on AWS (EC2, S3, RDS, Lambda, etc.)
• Build resilient, scalable cloud-native services
• Contribute to system monitoring, logging, and reliability

System Design & Engineering Excellence

• Contribute to architecture, service boundaries, and system design decisions
• Write clean, maintainable, and well-documented code
• Ensure security, performance, and operational stability
• Continuously improve engineering quality and development practices

Collaboration

• Work closely with frontend, product, and AI teams
• Contribute to end-to-end feature delivery
• Participate in Agile development processes

Requirements

• 5+ years of backend software development experience
• Strong experience building and scaling backend systems in production

Core Technical Skills

• Strong experience with Java and Spring Boot
• Solid experience with Python
• Strong knowledge of SQL and database design (PostgreSQL preferred)
• Experience building REST APIs, microservices, and distributed systems
• Hands-on experience with AWS (EC2, S3, RDS, Lambda, etc.)
• Proficiency with Git and modern development workflows

AI & Modern Development Experience

• Experience with prompt engineering for LLM-based systems
• Practical experience building AI agent workflows in production
• Familiarity with frameworks/tools such as:
  • LangGraph
  • LangChain
  • LangSmith
  • or similar ecosystems
• Experience using AI-assisted development tools, such as:
  • Claude Code
  • Codex
  • OpenCode
  • or similar

Nice to Have

• Experience with vector databases or semantic search (e.g., Milvus)
• Knowledge of RAG (Retrieval-Augmented Generation) architectures
• Experience with CI/CD pipelines and DevOps practices
• Familiarity with event-driven architecture

• Experience with data processing pipelines or document AI systems

   

Why Join Us

• Work on cutting-edge AI-powered systems in a $17T industry
• Build real-world applications using LLMs, agents, and automation
• High ownership and autonomy with meaningful technical impact
• Opportunity to influence system design and engineering direction
• Fast-moving, execution-focused team with minimal bureaucracy
• Competitive compensation and flexible work environment

We're building a completely new product – Tiger Finder, an AI-powered influencer discovery platform – and looking for a Product Lead who'll lead the product and play a key role in shaping its future.

This isn't a traditional product role where you inherit roadmaps and spend your days writing tickets. You'll own the product roadmap and day-to-day product decisions, work directly with customers, and be responsible for making Tiger Finder better every week.

You'll collaborate closely with the company's founder and CEO on the long-term vision, while having the autonomy to make product decisions yourself. This is an opportunity to lead an early-stage product where your decisions will have a direct impact on the product, the business, and our customers.

We're looking for someone with a strong product mindset and an entrepreneurial spirit. Someone who enjoys talking to customers, spotting opportunities, validating ideas, and turning them into product capabilities people love.

You'll work with an experienced and highly motivated team that's building an exciting product from the ground up.

Responsibilities

• Own the product roadmap and prioritize what gets built next.
• Talk to customers and users to deeply understand their needs, workflows, and pain points.
• Turn insights into clear product priorities, requirements, and experiments.
• Work closely with designers and engineers to ship valuable features quickly.
• Analyze product usage and business metrics to guide product decisions.
• Optimize the entire self-serve user journey, from onboarding and activation to conversion, retention, and monetization.
• Work closely with Marketing and CS to improve product-led growth.
• Regularly interview customers and prospects to validate ideas, gather feedback, and identify new opportunities.
• Represent Tiger Finder in customer calls, product demos, and industry conversations to continuously learn from the market.
• Stay on top of trends in influencer marketing, creator economy, AI, and competing products.

Requirements

• 3+ years of Product Manager, Product Lead, or similar product leadership experience in SaaS companies. Your most recent experience should be in a product company or startup.
• Experience leading product-led growth (PLG) initiatives for self-serve SaaS products.
• Proven experience optimizing self-serve SaaS funnels, including acquisition, activation, conversion, retention, and monetization.
• Experience conducting customer interviews and usability testing.
• Fluent spoken and written English. You'll regularly interview customers, run product demos, and collaborate with international partners.
• Strong analytical skills and confidence in making data-driven decisions.
• Strong communication skills and the ability to align designers, engineers, marketers, and other stakeholders around product priorities.
• Experience partnering with marketing teams to optimize user acquisition, activation, and conversion for self-serve SaaS products.
• Good understanding of SaaS marketing channels, attribution, and growth tools.
• High ownership and a proactive, self-starter attitude.
• Ability to balance customer value, business impact, and engineering effort when making prioritization decisions.
• Entrepreneurial mindset with willingness to experiment, learn, and adapt.
• Based in Kyiv (or Kyiv region).
• Experience in the martech space is a strong plus.

Hands-on experience with

• Amplitude for product analytics.
• Google Analytics (GA4).
• Intercom for customer communication and product feedback.
• Stripe, including subscription plans, trials, billing flows, and payment-related conversion optimization.

Recruitment process

• Interview with our Head of Talent Acquisition.
• Interview with our founder and CEO.
• Product case study.
• Reference check.

Perks

• Flexible work options with some in-office days.
• Four-day workweek in summer.
• Unlimited paid time off.
• Medical insurance.
• Professional growth and development supported by the company.
• Work with a dynamic, highly engaged, and friendly team.
• Strong company culture where we encourage experiments, mistakes, and learning.

Join a team developing an enterprise-grade agentic AI platform that leverages AI agents, tools, skills, and orchestration capabilities to automate cybersecurity and business processes. The project involves building and enhancing modern GenAI solutions using technologies such as Python, Azure, RAG, MCP integrations, CI/CD, observability, and scalable cloud-native architectures. You will work on designing, developing, and industrializing advanced agent-based AI applications, contributing to new use cases, integrations, security features, and platform evolution.

Responsibilities

Design, develop, and maintain full-stack applications using Python, FastAPI, and React.

Build and enhance Agentic AI solutions leveraging LLMs, LangChain, LangGraph, and AI orchestration frameworks.

Develop backend services, APIs, and integrations with external systems and AI tools.

Design and optimize data models and queries in PostgreSQL.

Implement caching, session management, and performance optimization using Redis.

Collaborate with architects, DevOps engineers, and product stakeholders to deliver scalable solutions.

Ensure code quality through testing, code reviews, and adherence to engineering best practices.

Contribute to system observability, monitoring, troubleshooting, and platform reliability.

Participate in solution design and technical leadership.

Support CI/CD processes and cloud-native application deployment.

Skills

Must have

7+ years of professional software development experience.

Strong expertise in Python and modern backend development.

Experience with FastAPI and RESTful API design.

Strong frontend development experience with React.js.

Hands-on experience building Agentic AI applications.

Practical experience with LLMs (OpenAI, Azure OpenAI, Anthropic, or similar), LangChain, LangGraph, Langfuse.

Strong knowledge of PostgreSQL.

Experience with Redis.

Understanding of software architecture, design patterns, and scalable distributed systems.

Experience with Git, CI/CD pipelines, and modern development practices.

Good communication skills and ability to work in an international environment.

English: B2 or higher.

Nice to have

Experience with security testing, application security, or secure coding practices (preferred).

Experience with Azure cloud services.

Experience with RAG (Retrieval-Augmented Generation) architectures.

Knowledge of Docker, Kubernetes, and cloud-native deployments.

Exposure to cybersecurity, vulnerability management, or enterprise security platforms.

GR8_TECH builds B2B iGaming platforms for operators who play to lead.

We deliver full-cycle, high-impact tech designed to scale — from seamless integrations and expert consulting to long-term operational support. Our platform powers millions of active players and drives real business growth. Call it what it is: the iGaming Platform for Champions.

With 1000+ GR8 people across locations and time zones, we don’t just ship technology — we help operators build success stories across brands, markets, and geos.

Our ambition drives us. Our people make it real.

If you’re a challenger in spirit and a champion in action — join us.
 

Why this role exists:

As a Senior Full-Stack .NET Engineer, you will play a critical role in designing, developing, and maintaining enterprise-level applications across our backend stack based on .NET, Node.js, Go and related technologies. You will lead technical discussions, mentor junior team members, and collaborate with cross-functional teams to deliver scalable and robust software solutions that meet business requirements and industry standards. This role offers the opportunity to make a significant impact, shape product direction, and contribute to the growth and success of the team.
 

What you’ll drive:

Architecture & Execution

• Design and implement scalable, efficient, and secure enterprise-level software architectures across our .NET stack.
• Write, test, and debug complex code for high-load systems with strict latency and reliability requirements.
• Deliver clean code to production in a timely manner, balancing business speed with technical excellence.
• Identify and eliminate performance bottlenecks across CPU, memory, I/O, and database layers.

Engineering Quality & Observability

• Conduct thorough code reviews to enforce strict code quality, security, and industry best practices.
• Develop and enforce testing protocols to guarantee software reliability and flawless production performance.
• Implement and monitor production observability frameworks, including logging, metrics, monitoring, and distributed tracing.
• Create and maintain concise, meaningful technical documentation for system designs and architecture.

Collaboration & Leadership

• Provide guidance and mentorship to junior and mid-level engineers, actively fostering their technical growth.
• Partner with Delivery Managers to lead and manage software development projects, ensuring predictable, high-quality delivery.
• Collaborate closely with product management, design, and operations teams to align technical execution with business goals.
• Communicate effectively with stakeholders, translating complex technical concepts into clear project updates.
   

What makes you a GR8 fit:

• Minimum 5 years of experience in a similar senior engineering role with a track record of leadership, strong technical skills, and successful project delivery.
• Deep hands-on expertise in C# and .NET (Core / .NET 6+).
• Commercial experience or a strong willingness to learn and work with Golang and Node.js.
• Experience designing and evolving high-load backend systems with strict latency and reliability requirements.
• Experience working REST API and web services.
• Strong understanding of async/await, multithreading, thread safety, memory management, and performance optimization.
• Ability to identify and eliminate performance bottlenecks across CPU, memory, I/O, and database layers.
• Experience designing and operating microservice-based systems.
• Experience working with relational and non-relational databases.
• Understanding of transactions, isolation levels, locking, concurrency, indexing strategies, and performance tuning.
• Experience working with containerized environments including Docker and Kubernetes.
• Understanding of CI/CD pipelines and automated delivery.
• Understanding of scalability, load balancing, auto-scaling, and disaster recovery.
• Understanding of production observability including logging, metrics, monitoring, and tracing.
   

Why you’ll love working here: 

Benefits Cafeteria — annual budget you allocate to:

Sports • Medical • Mental health • Home office • Languages.

Work-life & support

• Paid maternity/paternity leave + monthly childcare allowance.
• 20+ vacation days, unlimited sick leave, emergency time off.
• Remote-first + tech support + coworking compensation.
• Team events (online/offline/offsite).
• Learning culture with internal courses + growth programs.
   

Our culture & core values:

GR8_TECH culture is how we win — through trust, ownership, and a growth mindset. We move fast, stay curious, and keep it real, with open feedback, room to experiment, and a team that’s got your back.

FUELLED BY TRUST: we’re open, honest, and have each other’s backs.

OWN YOUR GAME: we take initiative and own what we do.

ACCELER8: we move fast, focus smart, and keep it simple.

CHALLENGE ACCEPTED: we grow through challenges and stay curious.

BULLETPROOF: we’re resilient, ready, and always have a plan.

Join a project where scalable backend engineering meets modern AI-driven financial technology. We are looking for a Senior / Principal Python Engineer to help build and evolve high-load payment and revenue systems used by businesses worldwide.

You will work on cloud-native backend services, distributed systems, and payment infrastructure while collaborating with Product, Frontend, AI, and Engineering teams. This role is ideal for engineers who enjoy solving complex technical challenges, influencing architecture decisions, and driving engineering excellence.

We at Sigma Software value technical ownership, collaboration, and continuous learning. You will join an international environment where innovation, modern technologies, and professional growth are part of everyday work.

Customer

Our Customer is a global SaaS company developing an AI-native revenue platform for modern finance and accounting teams. The company provides subscription management, billing automation, and revenue operations solutions that help organizations optimize financial workflows, improve scalability, and streamline transaction management across complex business ecosystems.

Requirements

• 5+ years of professional Back-end software engineering experience using Python
• Solid experience designing and building RESTful APIs and distributed backend systems
• Strong knowledge of SQL and/or NoSQL databases
• Hands-on experience with AWS cloud services
• Experience with Docker and Kubernetes
• Understanding of scalable cloud-native architectures and microservices principles
• Experience working in cross-functional Agile teams
• Strong problem-solving, communication, and collaboration skills
• Ability to drive technical initiatives and contribute to architectural decisions
• Upper-Intermediate or higher English level

WILL BE A PLUS:

• Experience with FastAPI and TypeScript
• Experience building AI-powered user experiences or integrating AI/LLM services into Front-end applications
• Hands-on experience with AI technologies and LLM ecosystems
• Experience integrating OpenAI, Anthropic, or similar AI services
• Experience working with AI SDKs and prompt-based applications

Responsibilities

• Design, develop, and maintain scalable backend services and APIs for cloud-native applications
• Build and optimize distributed systems, payment processing pipelines, and backend infrastructure
• Ensure high availability, security, scalability, and performance of backend systems
• Participate in architecture discussions and contribute to technical strategy and decision-making
• Collaborate with Product, Frontend, AI, and DevOps teams to deliver high-quality solutions
• Mentor engineers through code reviews, technical guidance, and engineering best practices
• Troubleshoot complex production issues and drive continuous improvements
• Contribute to AI-powered product capabilities and AI/ML-driven initiatives
• Promote engineering excellence, observability, and maintainability across services and infrastructure

Приєднуйся до проєкту, де масштабна Back-end розробка поєднується із сучасними AI-рішеннями у сфері фінансових технологій. Ми шукаємо Senior / Principal Python Engineer, який допоможе розвивати високонавантажені платіжні та revenue-системи, якими користуються компанії по всьому світу.

Ти працюватимеш із cloud-native сервісами, розподіленими системами та платіжною інфраструктурою, тісно співпрацюючи з Product, Front-end, AI та Engineering командами. Ця роль ідеально підійде інженерам, яким подобається вирішувати складні технічні задачі, впливати на архітектурні рішення та вдосконалювати технологічні підходи.

У Sigma Software ми цінуємо відповідальність за технічні рішення, командну взаємодію та безперервний професійний розвиток. На тебе чекає міжнародне середовище, де інновації, сучасні технології та можливості для навчання й професійного зростання є невід'ємною частиною щоденної роботи.

Customer

Наш клієнт — глобальна SaaS-компанія, яка розробляє AI-native платформу для управління доходами (Revenue Platform) для сучасних фінансових і бухгалтерських команд. Її рішення охоплюють управління підписками, автоматизацію білінгу та оптимізацію фінансових операцій (Revenue Operations), допомагаючи компаніям ефективніше керувати фінансовими процесами, масштабувати бізнес і спрощувати обробку транзакцій у складних корпоративних екосистемах.

Requirements

• Від 5 років комерційного досвіду в Back-end розробці з використанням Python
• Практичний досвід проєктування та розробки RESTful API і розподілених Back-end систем
• Глибокі знання SQL та/або NoSQL баз даних
• Практичний досвід роботи з хмарними сервісами AWS
• Досвід використання Docker і Kubernetes
• Розуміння принципів побудови масштабованих cloud-native та мікросервісних архітектур
• Досвід роботи в кросфункціональних Agile-командах
• Розвинені навички вирішення технічних проблем, ефективної комунікації та командної взаємодії
• Здатність брати технічне лідерство та впливати на архітектурні рішення
• Англійська мова — Upper-Intermediate або вище

WILL BE A PLUS

• Досвід роботи з FastAPI та TypeScript
• Досвід створення AI-функціональності для користувацьких застосунків або інтеграції AI/LLM-сервісів
• Практичний досвід роботи з сучасними AI-технологіями та LLM-екосистемами
• Досвід інтеграції OpenAI, Anthropic або аналогічних AI-сервісів

• Досвід роботи з AI SDK та застосунками, що використовують prompt engineering

   

Responsibilities

• Проєктувати, розробляти та підтримувати масштабовані Back-end сервіси й API для cloud-native застосунків
• Розробляти та оптимізувати розподілені системи, платіжні конвеєри (payment pipelines) і Back-end інфраструктуру
• Забезпечувати високу доступність, безпеку, продуктивність і масштабованість сервісів
• Брати участь у формуванні архітектурних рішень і технічної стратегії продукту
• Тісно співпрацювати з Product, Front-end, AI та DevOps командами для створення якісних і надійних рішень
• Проводити code review, менторити інших інженерів і ділитися найкращими інженерними практиками
• Аналізувати й вирішувати складні інциденти в production-середовищі, а також ініціювати технічні вдосконалення
• Долучатися до розвитку AI-функціональності продукту та AI/ML-ініціатив
• Розвивати інженерну культуру, покращувати спостережуваність (observability), надійність і простоту підтримки сервісів та інфраструктури

We are looking for a Lead .Net Full-Stack Engineer (with Angular or React) to join a dedicated delivery team working on a high-visibility engagement with a US-based payments technology company undergoing a strategic carve-out into a standalone business entity.
The platform processes card payments end-to-end for thousands of institutional customers and includes multiple production-grade .NET applications, such as a central payment gateway, a registration platform with an encrypted card vault, an AWS-native ticketing and point-of-sale solution, and a large commerce application with a single-tenant database model.

This is a fast-paced, security-focused modernization initiative with a hard 3-month delivery window. The team is responsible for performing security remediation, upgrading legacy frameworks and dependencies, and supporting the separation of Azure and AWS environments into an independent infrastructure landscape. The role offers direct exposure to CTO-level stakeholders and the possibility of continuing into a longer-term platform re-architecture phase.

Responsibilities:

• Remediate security findings across ASP.NET applications (MVC, Web API, Razor Pages), including issues related to secrets management, cryptography, token handling, injection vulnerabilities, and sensitive-data logging.
• Upgrade legacy .NET Framework applications to supported versions and migrate components to .NET 6+/8 where feasible.
• Modernize and stabilize frontend dependencies across Angular, React, TypeScript, and Telerik/Kendo UI codebases.
• Investigate and reverse-engineer brownfield systems, including legacy components, to understand data flows and payment-processing logic.
• Collaborate closely with the client’s retained engineering team, working effectively even in areas with limited documentation or SME coverage.
• Contribute to validation and retest activities by preparing evidence packages, deployment logs, and before/after remediation artifacts.
• Support CI/CD-driven delivery and ensure changes are shipped with appropriate testing, QA validation, and rollback procedures.
• Participate in technical discussions around future platform modernization and integration initiatives.

Requirements:

• 6+ years of professional experience in .NET development on large-scale production systems.
• Strong expertise in C# and ASP.NET (MVC, Web API, Razor Pages).
• Hands-on experience working with both .NET Framework 4.5.x-era applications and .NET 6+/8 modernization or migration efforts.
• Solid experience with Entity Framework / EF Core.
• Strong frontend skills with Angular, React, and TypeScript.
• Proven experience working on brownfield or legacy modernization projects.
• Practical experience remediating security vulnerabilities and applying secure coding practices (OWASP-related issues, secrets handling, cryptography, authentication/session management).
• Ability to work independently in complex, partially documented environments.
• Upper-Intermediate English (B2+) or higher.

Nice to have:

• Experience in payments, fintech, PCI DSS, or other security-sensitive domains.
• Experience with Azure PaaS services (App Services, Functions, Service Bus, Cosmos DB).
• Experience with AWS services (Lambda, S3, SNS/SQS).
• Familiarity with Azure AD B2C.
• Experience with Blazor or SignalR.
• Experience with Telerik / Kendo UI components.

• Experience working in M&A, carve-out, or large-scale platform separation programs.

   

We offer*:

• Flexible working format - remote, office-based or flexible
• A competitive salary and good compensation package
• Personalized career growth
• Professional development tools (mentorship program, tech talks and trainings, centers of excellence, and more)
• Active tech communities with regular knowledge sharing
• Education reimbursement
• Memorable anniversary presents
• Corporate events and team buildings
• Other location-specific benefits

*not applicable for freelancers

We are looking for a Lead .Net Full-Stack Engineer (with Angular or React) to join a dedicated delivery team working on a high-visibility engagement with a US-based payments technology company undergoing a strategic carve-out into a standalone business entity.
The platform processes card payments end-to-end for thousands of institutional customers and includes multiple production-grade .NET applications, such as a central payment gateway, a registration platform with an encrypted card vault, an AWS-native ticketing and point-of-sale solution, and a large commerce application with a single-tenant database model.

This is a fast-paced, security-focused modernization initiative with a hard 3-month delivery window. The team is responsible for performing security remediation, upgrading legacy frameworks and dependencies, and supporting the separation of Azure and AWS environments into an independent infrastructure landscape. The role offers direct exposure to CTO-level stakeholders and the possibility of continuing into a longer-term platform re-architecture phase.

Responsibilities:

• Remediate security findings across ASP.NET applications (MVC, Web API, Razor Pages), including issues related to secrets management, cryptography, token handling, injection vulnerabilities, and sensitive-data logging.
• Upgrade legacy .NET Framework applications to supported versions and migrate components to .NET 6+/8 where feasible.
• Modernize and stabilize frontend dependencies across Angular, React, TypeScript, and Telerik/Kendo UI codebases.
• Investigate and reverse-engineer brownfield systems, including legacy components, to understand data flows and payment-processing logic.
• Collaborate closely with the client’s retained engineering team, working effectively even in areas with limited documentation or SME coverage.
• Contribute to validation and retest activities by preparing evidence packages, deployment logs, and before/after remediation artifacts.
• Support CI/CD-driven delivery and ensure changes are shipped with appropriate testing, QA validation, and rollback procedures.
• Participate in technical discussions around future platform modernization and integration initiatives.

Requirements:

• 6+ years of professional experience in .NET development on large-scale production systems.
• Strong expertise in C# and ASP.NET (MVC, Web API, Razor Pages).
• Hands-on experience working with both .NET Framework 4.5.x-era applications and .NET 6+/8 modernization or migration efforts.
• Solid experience with Entity Framework / EF Core.
• Strong frontend skills with Angular, React, and TypeScript.
• Proven experience working on brownfield or legacy modernization projects.
• Practical experience remediating security vulnerabilities and applying secure coding practices (OWASP-related issues, secrets handling, cryptography, authentication/session management).
• Ability to work independently in complex, partially documented environments.
• Upper-Intermediate English (B2+) or higher.

Nice to have:

• Experience in payments, fintech, PCI DSS, or other security-sensitive domains.
• Experience with Azure PaaS services (App Services, Functions, Service Bus, Cosmos DB).
• Experience with AWS services (Lambda, S3, SNS/SQS).
• Familiarity with Azure AD B2C.
• Experience with Blazor or SignalR.
• Experience with Telerik / Kendo UI components.

• Experience working in M&A, carve-out, or large-scale platform separation programs.

   

We offer*:

• Flexible working format - remote, office-based or flexible
• A competitive salary and good compensation package
• Personalized career growth
• Professional development tools (mentorship program, tech talks and trainings, centers of excellence, and more)
• Active tech communities with regular knowledge sharing
• Education reimbursement
• Memorable anniversary presents
• Corporate events and team buildings
• Other location-specific benefits

*not applicable for freelancers

We are looking for a Lead .Net Full-Stack Engineer (with Angular or React) to join a dedicated delivery team working on a high-visibility engagement with a US-based payments technology company undergoing a strategic carve-out into a standalone business entity.
The platform processes card payments end-to-end for thousands of institutional customers and includes multiple production-grade .NET applications, such as a central payment gateway, a registration platform with an encrypted card vault, an AWS-native ticketing and point-of-sale solution, and a large commerce application with a single-tenant database model.

This is a fast-paced, security-focused modernization initiative with a hard 3-month delivery window. The team is responsible for performing security remediation, upgrading legacy frameworks and dependencies, and supporting the separation of Azure and AWS environments into an independent infrastructure landscape. The role offers direct exposure to CTO-level stakeholders and the possibility of continuing into a longer-term platform re-architecture phase.

Responsibilities:

• Remediate security findings across ASP.NET applications (MVC, Web API, Razor Pages), including issues related to secrets management, cryptography, token handling, injection vulnerabilities, and sensitive-data logging.
• Upgrade legacy .NET Framework applications to supported versions and migrate components to .NET 6+/8 where feasible.
• Modernize and stabilize frontend dependencies across Angular, React, TypeScript, and Telerik/Kendo UI codebases.
• Investigate and reverse-engineer brownfield systems, including legacy components, to understand data flows and payment-processing logic.
• Collaborate closely with the client’s retained engineering team, working effectively even in areas with limited documentation or SME coverage.
• Contribute to validation and retest activities by preparing evidence packages, deployment logs, and before/after remediation artifacts.
• Support CI/CD-driven delivery and ensure changes are shipped with appropriate testing, QA validation, and rollback procedures.
• Participate in technical discussions around future platform modernization and integration initiatives.

Requirements:

• 6+ years of professional experience in .NET development on large-scale production systems.
• Strong expertise in C# and ASP.NET (MVC, Web API, Razor Pages).
• Hands-on experience working with both .NET Framework 4.5.x-era applications and .NET 6+/8 modernization or migration efforts.
• Solid experience with Entity Framework / EF Core.
• Strong frontend skills with Angular, React, and TypeScript.
• Proven experience working on brownfield or legacy modernization projects.
• Practical experience remediating security vulnerabilities and applying secure coding practices (OWASP-related issues, secrets handling, cryptography, authentication/session management).
• Ability to work independently in complex, partially documented environments.
• Upper-Intermediate English (B2+) or higher.

Nice to have:

• Experience in payments, fintech, PCI DSS, or other security-sensitive domains.
• Experience with Azure PaaS services (App Services, Functions, Service Bus, Cosmos DB).
• Experience with AWS services (Lambda, S3, SNS/SQS).
• Familiarity with Azure AD B2C.
• Experience with Blazor or SignalR.
• Experience with Telerik / Kendo UI components.

• Experience working in M&A, carve-out, or large-scale platform separation programs.

   

We offer*:

• Flexible working format - remote, office-based or flexible
• A competitive salary and good compensation package
• Personalized career growth
• Professional development tools (mentorship program, tech talks and trainings, centers of excellence, and more)
• Active tech communities with regular knowledge sharing
• Education reimbursement
• Memorable anniversary presents
• Corporate events and team buildings
• Other location-specific benefits

*not applicable for freelancers

We are looking for a Lead .Net Full-Stack Engineer (with Angular or React) to join a dedicated delivery team working on a high-visibility engagement with a US-based payments technology company undergoing a strategic carve-out into a standalone business entity.
The platform processes card payments end-to-end for thousands of institutional customers and includes multiple production-grade .NET applications, such as a central payment gateway, a registration platform with an encrypted card vault, an AWS-native ticketing and point-of-sale solution, and a large commerce application with a single-tenant database model.

This is a fast-paced, security-focused modernization initiative with a hard 3-month delivery window. The team is responsible for performing security remediation, upgrading legacy frameworks and dependencies, and supporting the separation of Azure and AWS environments into an independent infrastructure landscape. The role offers direct exposure to CTO-level stakeholders and the possibility of continuing into a longer-term platform re-architecture phase.

Responsibilities:

• Remediate security findings across ASP.NET applications (MVC, Web API, Razor Pages), including issues related to secrets management, cryptography, token handling, injection vulnerabilities, and sensitive-data logging.
• Upgrade legacy .NET Framework applications to supported versions and migrate components to .NET 6+/8 where feasible.
• Modernize and stabilize frontend dependencies across Angular, React, TypeScript, and Telerik/Kendo UI codebases.
• Investigate and reverse-engineer brownfield systems, including legacy components, to understand data flows and payment-processing logic.
• Collaborate closely with the client’s retained engineering team, working effectively even in areas with limited documentation or SME coverage.
• Contribute to validation and retest activities by preparing evidence packages, deployment logs, and before/after remediation artifacts.
• Support CI/CD-driven delivery and ensure changes are shipped with appropriate testing, QA validation, and rollback procedures.
• Participate in technical discussions around future platform modernization and integration initiatives.

Requirements:

• 6+ years of professional experience in .NET development on large-scale production systems.
• Strong expertise in C# and ASP.NET (MVC, Web API, Razor Pages).
• Hands-on experience working with both .NET Framework 4.5.x-era applications and .NET 6+/8 modernization or migration efforts.
• Solid experience with Entity Framework / EF Core.
• Strong frontend skills with Angular, React, and TypeScript.
• Proven experience working on brownfield or legacy modernization projects.
• Practical experience remediating security vulnerabilities and applying secure coding practices (OWASP-related issues, secrets handling, cryptography, authentication/session management).
• Ability to work independently in complex, partially documented environments.
• Upper-Intermediate English (B2+) or higher.

Nice to have:

• Experience in payments, fintech, PCI DSS, or other security-sensitive domains.
• Experience with Azure PaaS services (App Services, Functions, Service Bus, Cosmos DB).
• Experience with AWS services (Lambda, S3, SNS/SQS).
• Familiarity with Azure AD B2C.
• Experience with Blazor or SignalR.
• Experience with Telerik / Kendo UI components.

• Experience working in M&A, carve-out, or large-scale platform separation programs.

   

We offer*:

• Flexible working format - remote, office-based or flexible
• A competitive salary and good compensation package
• Personalized career growth
• Professional development tools (mentorship program, tech talks and trainings, centers of excellence, and more)
• Active tech communities with regular knowledge sharing
• Education reimbursement
• Memorable anniversary presents
• Corporate events and team buildings
• Other location-specific benefits

*not applicable for freelancers

Наш клієнт, Growe, провідна консалтингова компанія та група сервісів у сфері iGaming і розваг. Вони створюють стратегії, що працюють, та рішення, які масштабуються. 

Ідеально для тих, хто прагне:

• Керувати повним життєвим циклом проекту, від визначення обсягу робіт та планування до виконання та доставки;
• Тісно співпрацювати з інженерами, менеджерами продуктів, командами контролю якості та дизайнерів;
• Проактивно взаємодіяти з паралельними технічними командами для забезпечення узгодженості та ефективного управління залежностями;
• Забезпечувати стабільність та безперебійну роботу власних продуктів та послуг;
• Брати на себе відповідальність за проактивне покращення якості, продуктивності та надійності продукту/послуги;
• Відстежувати та керувати ключовими показниками ефективності, включаючи: коефіцієнт безперебійної роботи, відхилення розробки (нормальне відхилення), коефіцієнт виявлення дефектів, моніторинг помилок, коефіцієнт доставки;
• Забезпечувати ефективну пріоритезацію, планування спринтів та відстеження результатів;
• Зменшувати ризики, усувати перешкоди та підтримувати прозорість із зацікавленими сторонами;
• Виявляти можливості та сприяти постійному вдосконаленню в команді: процеси, комунікація та практика доставки.

Досвід, який стане твоєю перевагою:

• 5+ років досвіду як Project Manager в технологічно орієнтованій компанії або середовищі цифрових продуктів;
• Глибоке розуміння життєвих циклів розробки програмного забезпечення, Agile/Scrum;
• Практичний досвід управління міжфункціональними технічними командами (наприклад, backend, frontend, DevOps);
• Досвід реалізації складних проектів у середовищах з чіткими вимогами до надійності та безперервної доступності сервісів;
• Перевірена здатність працювати з ключовими показниками ефективності (KPI), що базуються на даних, та застосовувати їх для покращення операційної досконалості;
• Досвід роботи в галузях зі швидкими циклами випуску, живими системами та платформами, орієнтованими на клієнта;
• Досвід з управлінням інцидентами, аналізом першопричин та зменшенням ризиків у продакшені;
• Рівень англійської Upper-intermediate (письмово та розмовно);
• Досвід роботи з iGaming буде перевагою.

Ми цінуємо:

• Навички співпраці та наполегливість: здатність працювати з кількома зацікавленими сторонами, прагнути кращих результатів;
• Проактивність та відповідальність: не чекає, поки йому вкажуть, що робити, проявляє ініціативу у виявленні проблем та реагуванні на них;
• Системне мислення: здатність пов'язувати зв'язки між кількома командами, процесами та технічними сферами;
• Стійкість: здатність приймати рішення та чітко спілкуватися під час інцидентів або невизначеності;
• Допитливість та швидке навчання: прагне розуміти складні технічні системи та специфічні нюанси для предметної області (наприклад, ігрові платформи, комплаєнс);
• Орієнтованість на дані: впевнено працює з метриками та перетворює аналітику на дії.

Наші клієнти пропонують конкурентні переваги для підтримки вашого професійного та особистого зростання, зокрема:

• Орієнтація на здоров’я та добробут;
• Глобальне медичне страхування;
• Можливості для зростання;
• Програми бенефітів (компенсація спорту / стоматології / психолога тощо);
• Бонуси за досягнення результатів;
• Динамічне робоче середовище.

English version:

Our client, Growe, is a leading business advisory and services group in iGaming and Entertainment. Сreators of strategies that work and solutions that scale. 

Perfect for those who aim to:

• Manage the full project lifecycle, from scoping and planning to execution and delivery;
• Collaborate closely with engineers, product managers, QA, and design teams;
• Proactively engage with parallel technical teams to ensure alignment and efficient dependency management;
• Ensure the stability and uptime of owned products and services;
• Take ownership of proactively improving the quality, performance, and reliability of the product/service;
• Track and manage key performance metrics, including: Uptime Rate, Development Deviation (normal deviation), Defect Detection Rate, Error Monitoring, Delivery Rate;
• Ensure effective prioritisation, sprint planning, and tracking of deliverables;
• Mitigate risks, remove blockers, and maintain transparency with stakeholders;
• Identify opportunities and drive continuous improvements within the team: processes, communication, and delivery practices.

Experience you’ll need to bring:

• 5+ years of experience in project management within a technology-focused company or digital product environment;
• Strong understanding of software development life cycles, Agile/Scrum;
• Hands-on experience managing cross-functional technical teams (e.g., backend, frontend, DevOps);
• Strong track record of delivering complex projects in environments with strict reliability and uptime requirements;
• Proven ability to work with data-driven KPIs and apply them to improve delivery and operational excellence;
• Experience working in industries with fast release cycles, live systems, and customer-facing platforms;
• Familiarity with incident management, root cause analysis, and risk mitigation in production;
• Upper-intermediate level of English (written and spoken);
• Experience with iGaming will be a plus.

It's a perfect match if you have those personal features:

• Collaborative and assertive: able to work across multiple stakeholders, push for the right outcomes, and manage conflicts constructively;
• Proactive and ownership-driven: doesn't wait to be told what to do, takes initiative to spot issues and act on them;
• System thinker: able to connect dots across multiple teams, processes, and technical domains;
• Resilient: capable of making decisions and communicating clearly during incidents or uncertainty;
• Curious and fast learner: keen to understand complex technical systems and domain-specific nuances (e.g., gambling platforms, compliance);
• Data-minded: comfortable working with metrics and turning insights into actions.

Our clients offer competitive benefits to support your professional and personal growth, including: 

• Health & Wellness Focus;
• Global Medical Coverage;
• Growth Opportunities;
• Benefits Programs (compensation for the gym/stomatology/psychological service & etc.);
• Performance-Driven Rewards;
• Dynamic Work Environment.

Who are we?

Fuelfinance is on a mission to revolutionize financial management for early-stage startups, empowering them to take control of their finances and thrive. We recently raised $1M in Seed Funding from top-tier investors like Markus Villig (Bolt), John S. Kim (SendBird), Stratmind, and Bad Ideas funds, following 3 years of profitable, bootstrapped success. Trusted by businesses with over $200M in P&L, including Reface, Petcube, and Hampton, we’ve built a universal tool that brings clarity and insight to finance management.

With 38% of startups failing due to cash flow issues, our goal is to prevent these failures and unlock trillions in GDP growth. At Fuelfinance, we’re not just creating software — we’re safeguarding the future of thousands of startups. Join us and be part of this impact!

fuelfinance.me

www.instagram.com/fuelfinance

youtu.be/eI5VH2Ks9o4

Who are we searching for?

We're looking for an Enterprise Finance Engineer — someone who can design and implement AI-powered finance systems for our largest and most complex customers. This role sits at the intersection of Finance, Accounting, Systems, Automation, Integrations, and AI.

You'll work directly with CFOs, Finance Directors, Controllers, IT teams, and finance teams to redesign finance operations through AI, automation, and system integrations. You'll own a small number of large, strategic customers end-to-end — from understanding business processes to designing scalable solutions and continuously improving them as the business evolves.

This isn't a role for someone who wants repeatable implementations or well-defined requirements. Every customer is different. You'll navigate ambiguity, work with demanding stakeholders, and solve unique technical problems without predefined playbooks. If that energizes you, we'd love to meet you.

What are your responsibilities?

• Design and implement AI-powered finance systems for enterprise customers
• Lead discovery sessions to understand finance processes and identify automation opportunities
• Build workflows for reporting, forecasting, financial controls, reconciliations, and planning
• Design integrations across ERP, accounting, CRM, payment, BI, and data platforms
• Translate finance requirements into scalable workflows, automations, and system architecture
• Build AI agents, validation logic, and automation frameworks that reduce manual work
• Partner with Engineering on APIs, integrations, and workflow orchestration
• Coordinate across Engineering, Product, and Customer Success as the trusted technical partner for your customers
• Continuously improve customer solutions as business needs evolve

What are the preferred requirements for the role?

• 10+ years implementing finance systems, automations, or enterprise finance operations
• 1+ year building AI-powered automations, agents, workflows, or internal AI tools
• Hands-on experience with APIs, system integrations, automation platforms, and data warehouses
• Experience working with enterprise or multi-entity organizations (multiple stakeholders, legacy systems, changing requirements, long implementation cycles)
• Proven experience leading implementation projects end-to-end — discovery, solution design, rollout, training, and support
• Fluent English
• Strong understanding of finance and accounting processes, including financial close, reporting, FP&A, revenue, AP/AR, and financial controls
• Ability to understand how financial data flows across systems and departments
• Experience with ERP, accounting, or billing systems
• Proven impact in numbers: hours saved, manual work reduced, faster reporting, or fewer errors
• Excellent communication skills and experience working directly with senior finance stakeholders
• Strong systems thinking — the ability to see the bigger picture and break complex finance processes into scalable, maintainable, reusable solutions
• Ownership: taking full responsibility from problem discovery through implementation and post-launch optimization
• Learning agility: quickly mastering new AI tools, technologies, and approaches
• Strong problem-solving under ambiguity, with the judgment to make trade-offs and prioritize
• Strong drive to eliminate repetitive manual work
• Proactivity and a high level of responsibility
• Ability to work in a fast-paced environment

Will be a plus:

• Python or other scripting experience
• SQL and the ability to retrieve and validate financial data independently
• Experience with tools like NetSuite, QuickBooks, Xero, Stripe, Salesforce, HubSpot, Zuora, BigQuery, Snowflake, PostgreSQL, Looker, Power BI, Tableau, Zapier, Make, n8n, or Workato
• Understanding of enterprise architecture — security, scalability, governance, and integration patterns
• Experience working with US-based clients or startups

Reporting Structure: reporting to the Head of FP&A

Recruitment Process:

• Soft skills interview with the recruiter
• Test task
• Hard skills interview with the Head of FP&A
• Culture fit interview with the Head of FP&A/VP of Operations

Why work with us?

• Build the future of finance work — design AI-native finance operations, not just maintain them
• Rapid skills improvement (you'll work with multiple client businesses with different models and challenges)
• Growth opportunities according to our seniority grading (it comes with a compensation increase)
• Flexible schedule and time-off policy
• 18 days of paid vacation per year, paid sick leaves

We’re looking for experienced an Affiliate Manager to join our team! In this role, you’ll be at the heart of our partner program, building relationships and driving success for our affiliates and the company alike.

Are you ready to elevate your career in an innovative and dynamic environment that values growth and collaboration? If you’re eager to make an impact and develop your skills alongside a passionate team, we’d love to hear you! Join us, and let’s take your career to the next level together.

HOW YOU WILL MAKE AN IMPACT

• Develop and present tailored partnership proposals, effectively negotiating terms to build mutually beneficial agreements with new and existing affiliates.
• Guide and support partners through every stage of the partnership, ensuring a seamless experience and fostering strong, long-term relationships.
• Drive retention and motivation among existing partners by creating customized offers for different partner segments, and implementing a loyalty system for high-potential affiliates.
• Monitor and ensure the quality and compliance of affiliate-posted materials, upholding brand standards and message consistency.
• Analyze partner traffic to establish a comprehensive reporting system, leveraging insights to optimize strategy and drive improvements in key performance indicators (KPIs).
• Analyze key performance metrics (ROI, LTV, NGR, GGR, ARPU, ROAS, etc.) and implement strategies to improve their efficiency and overall profitability.
• Increase customer acquisition by driving higher traffic flow from partner sites to our products. Achieve and exceed KPIs related to acquiring new clients and partners, setting the bar for growth and performance.
• Use CRM tools to accurately track, maintain, and manage all partner contacts, ensuring up-to-date records and efficient communication.

WHAT WILL HELP YOU SUCCEED IN THE ROLE

• Minimum of 1,5 years of proven experience in affiliate marketing within the iGaming and Betting industry.
• Upper-intermediate or higher proficiency in English.
• Strong analytical skills to evaluate and optimize traffic funnels, identifying the most effective paths to conversion.
• Proficiency in creating clear and detailed technical tasks for developers and designers.
• Excellent organizational and time management abilities to handle multiple partners and projects effectively.
• Your soft skills, as well as negotiation skills, should be top-notch.
• You are available to travel and attend the conferences.

HOW WE WILL KEEP YOU SMILING

• Flexible working hours and a remote work setup, so you can plan work around your life and not your life around work!
• Unlimited vacation days and paid sick leave—because your rest matters.
• A competitive compensation that truly reflects your skills and expertise.
• Employee referral bonus and gifts to celebrate your special occasions.
• 50% financial support for learning expenses to supercharge your professional growth!
• A positive atmosphere where you always feel respected and truly belong.
• Inspirational team-building activities that turn colleagues into best friends.
• Wellness benefits: We’ll support your sports passions, from yoga classes to gym memberships.
• Co-working space reimbursement to save your nerves from always working from home :)