Jobs at Djinni

Softcery builds advanced AI systems for B2B SaaS companies. We partner with founders in the US and UK to design, build, and scale production-ready AI solutions that solve real business challenges. Our team focuses on complex AI engineering — systems that are technically robust, business-aligned, and built to scale. We combine deep technical expertise with strong product thinking, helping companies move from AI ambition to real, production impact.

We are looking for an AI Engineer to design and build AI agents, Voice AI solutions, and intelligent automations. You'll work with modern LLMs, agent frameworks, and production AI systems that solve real business problems.

What You'll Do:

• Build AI agents, Voice AI solutions, and intelligent automation workflows.
• Design and develop AI-powered applications using modern LLMs and agent frameworks.
• Build RAG pipelines and integrate AI systems with APIs, databases, CRMs, and third-party services.
• Design prompts, agent workflows, memory, and tool-calling capabilities.
• Optimize AI systems for performance, reliability, scalability, and cost efficiency.
• Explore new AI models, frameworks, and technologies, applying the best solutions to real-world use cases.
• Collaborate with engineers and clients to deliver production-ready AI solutions.

What We're Looking For:

• 2+ years of commercial experience in AI Engineering.
• Strong Python skills.
• Hands-on experience with LLM APIs (OpenAI, Anthropic, Gemini, etc.) and AI-powered applications.
• Experience with LangGraph, LangChain or similar frameworks.
• Understanding of prompt engineering, RAG, embeddings, vector databases, and AI orchestration concepts.
• Strong problem-solving skills, ownership mindset, and eagerness to learn.
• English – Upper-Intermediate (B2) or higher.

What We Offer:

• Structured onboarding – a clear onboarding plan, documented workflows, and a team that has your back.
• Flexible remote schedule – work from wherever and whenever you're most productive.
• Learning budget – we cover books, courses, English lessons, and AI tools for your professional growth.
• Full accounting support – so you can focus on the work, not the paperwork.
• Time off – 20 paid vacation days, 12 sick days, 2 paid period leave days/month (for women), and your birthday off.
• IT Cluster membership – access to professional events and networking opportunities in the local tech community.

🔁 Hiring Process: Initial Call → Qualification Interview → Test Task → Review Test Task.
 

If you're excited about building AI products that solve real business problems and want to work with the latest AI technologies every day, we'd love to meet you 👋

Softcery builds advanced AI systems for B2B SaaS companies. We partner with founders in the US and UK to design, build, and scale production-ready AI solutions that solve real business challenges. Our team focuses on complex AI engineering — systems that are technically robust, business-aligned, and built to scale. We combine deep technical expertise with strong product thinking, helping companies move from AI ambition to real, production impact.

We are looking for a Strong Junior / Middle Full-Stack Developer to build AI-powered applications, AI agents, voice agents, and automation solutions. You'll work across the full stack while integrating modern AI technologies into real production systems.

What You'll Do:

• Build and maintain full-stack web applications using modern frontend and backend technologies.
• Develop AI agents and AI-powered workflows using LLMs and external APIs.
• Build Voice AI solutions, including conversational experiences and telephony integrations.
• Design and implement business automations that eliminate manual work and improve operational efficiency.
• Integrate third-party services, APIs, and cloud platforms.
• Write clean, maintainable, and scalable code following modern engineering practices.

What We're Looking For:

• 2+ years of commercial Full-Stack development experience.
• Strong knowledge of React and Node.js.
• Experience working with SQL or NoSQL databases.
• Experience working with LLM APIs (OpenAI, Anthropic, Gemini, etc.).
• Experience building AI agents or automation workflows.
• Ability to work independently and take ownership of features.
• Strong problem-solving skills and willingness to learn quickly.
• English – Upper-Intermediate+ or higher.

What We Offer:

• Structured onboarding – a clear onboarding plan, documented workflows, and a team that has your back.
• Flexible remote schedule – work from wherever and whenever you're most productive.
• Learning budget – we cover books, courses, English lessons, and AI tools for your professional growth.
• Full accounting support – so you can focus on the work, not the paperwork.
• Time off — 20 paid vacation days, 12 sick days, 2 paid period leave days/month (for women), and your birthday off.
• IT Cluster membership – access to professional events and networking opportunities in the local tech community.

🔁 Hiring Process: Initial Call → Qualification Interview → Test Task → Review Test Task.
 

If you're excited about building AI products that solve real business problems and want to work with the latest AI technologies every day, we'd love to meet you 👋

We are looking for a Flutter Developer to join a new mobile project for an Android tablet application.

Requirements:

• 4+ years in mobile development, preferably 3+ years with Flutter
• Strong experience with Flutter and Dart
• Experience with offline-first mobile applications
• Experience with SQLite or other local mobile storage
• Experience with API integration
• Understanding of background sync on Android
• Experience or solid understanding of WorkManager
• Ability to work with an existing architecture and follow technical guidelines
• Upper-Intermediate or higher English

• Attention to detail and ability to work with complex business logic

   

Responsibilities:

• Develop new features for the Flutter tablet application
• Implement offline-first logic and local data persistence
• Build and maintain SQLite-based local storage flows
• Implement automatic sync with the backend API when Wi-Fi is available
• Work with PIN-based authentication and role-based user flows
• Implement exam scoring flows, timers, deductions, and result submission logic
• Follow the provided architecture and coding guidelines
• Collaborate with the client’s technical lead and our delivery team

It will be a plus:

• Experience with Android tablet applications
• Experience with background isolates in Flutter
• Experience with sync queues, retries, and conflict handling
• Experience with WorkManager in production apps
• Experience with complex form/scoring/business logic
• Basic understanding of .NET API integration context

RedCore is an international business group that creates technological solutions for digital markets. Our products and services cover fintech, marketing, e-commerce, customer service, communications and regulatory technologies. 

We are looking for a Community Manager to join our team!

Requirements:

- Experience in the casino industry with a strong understanding of audience behavior and engagement patterns within the vertical;
- 2+ years of experience as a Community Manager / Social Media Manager, with a primary focus on Telegram, Instagram, and Discord;
- 1+ year of experience in the iGaming, gambling, or betting industry;
- Proven track record of delivering successful engagement initiatives, communication campaigns, and measurable growth in community metrics, including retention;
- Strong communication skills and high emotional intelligence, with the ability to engage diverse audience segments, de-escalate negative situations, and maintain a consistent, authentic brand tone of voice (TOV);
- Solid understanding of social media and community analytics, including Engagement Rate (ER), Click-Through Rate (CTR), DAU/WAU/MAU, Active Chatters, User-Generated Content (UGC) Share, sentiment analysis, and community growth metrics;
- Experience with community management and SMM automation tools, including chatbots, CRM platforms, tracking systems, and dashboard-driven reporting;
- Proactive, self-driven, and ownership-oriented mindset, with the ability to manage multiple projects and priorities simultaneously.

Will be plus:

- Portfolio with case studies demonstrating growth in engagement, community quality, or retention metrics;
- Hands-on experience with ManyChat / Make / Zapier, Telegram Bots, Meta Business, WhatsApp Business, ClickUp, Tableau, etc.;
- Experience building chat rules, anti-spam logic, crisis communication scripts, and incident escalation workflows;
- Basic content production skills: creating briefs for designers, understanding short-form video content, and visual presentation of community mechanics;
 

Soft Skills:

- Empathy and emotional intelligence;
- Communication and facilitation skills;
- Conflict management;
- Organizational and time management skills;
- Flexibility and adaptability.

Responsibilities:

- Manage communities on Telegram / Instagram and other social platforms, adapting communication to Casino audiences, local context, and brand TOV;
- Launch and develop engagement and gamification mechanics: polls, quizzes, AMAs, challenges, rankings, game-like activities, weekly and monthly activation scenarios;
- Monitor chat quality: response speed, accuracy, empathy, routing of inquiries, and escalation of issues to support / product / CRM / retention teams;
- Maintain community content cadence: formats, activity scripts, template libraries, basic design briefs, and content support for engagement mechanics;
- Collect and systematize audience feedback, identify recurring pain points, behavioral patterns, and community needs;
- Own regular reporting and KPI analytics: Active Chatters, ER, UGC Share, CTR, sentiment, growth, response quality;
- Test hypotheses, evaluate mechanic performance, compare results over time, and propose improvements;
- Track competitors and adapt best-performing community mechanics to the relevant vertical;
- Participate in setup and usage of automation tools, bots, CRM systems, and dashboards in collaboration with cross-functional teams.

What are the conditions and bonuses?

☘️An exciting and challenging job in a fast-growing product company, the opportunity to be part of a multicultural team of top professionals in Development, Architecture, Management, Operations, Marketing, Legal, Finance and other;

🤝🏻Great working atmosphere with passionate experts and leaders, sharing a friendly culture and a success-driven mindset is guaranteed;

📍Beautiful offices in Warsaw, Limassol work remotely or on-site with comfort and enjoy the opportunity to build a network of connections with professionals day by day;

🧑🏻‍💻Laptop & all necessary equipment for work according to the ecosystem standards;

🏖Paid vacations, personal events days, days off;

🫖Paid sick leave;

👨🏻‍⚕️Medical insurance;

💵Referral program enjoy cooperation with your colleagues and get the bonus;

📚Educational support by our L&D team: internal and external trainings and conferences, courses on Udemy;

🗣Free internal English courses;

🧘Sport benefit;

🦄Multiple internal activities: online platform for employees with quests, gamification and presents for collecting bonuses, RedCore talks club for movie and book lovers, board games cozy evenings, special office days dedicated to holidays;

🎳Company events, team buildings.

Хочете бути в авангарді фінансових інновацій та вплинути на розвиток глобального ринку? Шукаємо Marketing Finance/Data Analyst в найвідомішу міжнародну криптобіржу з українським корінням. Релокейт в Іспанію за рахунок компанії + офіційне працевлаштування + найліпші умови - давайте обговоримо деталі?

Main Responsibilities

— Collecting and analyzing data related to marketing campaigns, including ad spend, conversions, ROI, CPL, CAC, and other key metrics.
— Evaluating the effectiveness of marketing activities, identifying underperforming channels, and providing recommendations for optimization.
— Developing and maintaining financial models to forecast the return on marketing investments.
— Conducting comparative analysis of costs and revenue across various marketing campaigns and channels.
— Monitoring KPIs by comparing actual performance with targets and identifying deviations.
— Planning and controlling the execution of marketing budgets, ensuring spending stays within approved limits.
— Reviewing and approving financial documents related to marketing expenses (invoices, acts, contracts).
— Identifying and analyzing budget variances and preparing proposals for cost adjustments.
— Automating and optimizing expense control processes to improve budget transparency and management.

Mandatory Requirements

— Education & Background: Bachelor’s degree or higher in Finance, Economics, Accounting, Business Analytics, or a related field.
— Experience: 2+ years of experience in financial analysis, marketing finance, or cost control, preferably in a digital marketing or e-commerce environment.
— Analytical Skills: Strong ability to collect, process, and analyze financial and marketing data, including ROI, CPL, CAC, and other key performance metrics.
— Financial Modeling & Budgeting: Proficiency in financial modeling, forecasting, and budgeting for marketing activities.
— Data-Driven Decision-Making: Experience in evaluating the effectiveness of marketing campaigns and providing recommendations for cost optimization.
— Technical Skills: Proficiency in Excel (advanced functions, pivot tables), Google Sheets, and financial reporting tools; experience with BI systems (e.g., Power BI, Tableau) is a plus.
— Attention to Detail: Strong ability to monitor financial documentation (invoices, contracts, acts) and ensure compliance with budgetary constraints.
— Process Automation & Optimization: Experience in automating expense tracking and control processes to enhance budget transparency and efficiency.

We offer

Immerse yourself in Crypto & Web3:
— Master cutting-edge technologies and become an expert in the most innovative industry.

Work with the Fintech of the Future:
— Develop your skills in digital finance and shape the global market.

Take Your Professionalism to the Next Level:
— Gain unique experience and be part of global transformations.

Drive Innovations:
— Influence the industry and contribute to groundbreaking solutions.
Join a Strong Team:
— Collaborate with top experts worldwide and grow alongside the best.
Work-Life Balance & Well-being:
— Modern equipment.
— Comfortable working conditions, and an inspiring environment to help you thrive.
— 22 business days of paid leave.
— Additional days off for national holidays.
— Health insurance.

Requirement

• User acquisition expert: 2+ years of proven track in building marketing retention campaigns for a consumer product through ad networks;
• Previous experience with ad networks;
• Gambling experience is mandatory;
• Work with creatives, experience with setting up tasks for video creatives;
• Experience in A/B testing and campaign optimization;
• Ability to identify issues within campaigns and develop solutions quickly;
• Understanding user journey, user segmentation, engagement, and customer experience;
• Ability to analyze and understand such metrics as CTR, CR, CPA;
• Previous work with such tools as Jira, Tableau;
• Understanding how to work with pixels, postbacks, user cookies;
• Remote work experience: ideally, in an international team;
• Flexible and open to feedback, with a continuous improvement mindset;
• Comfortable working independently and managing large-scale ad budgets;
• Good English communication skills

Will be plus

• Previous experience with Ubidex or other platforms for retargeting.
• Previous experience with Volume, Keitaro.

Responsibilities

1. Launch retargeting and performance campaigns;
2. Research new direct publishers that can be integrated via RTB or XML;
4. Manage the structure of retargeting campaigns;
5. Close work with existing campaigns.

Requirements

• Master’s degree in Accounting, Finance, Payroll
• 10+ years in finance, accounting or compensation, with significant leadership experience

• Strong proficiency in GAAP/IFRS, ERP systems, payroll software, and advanced Excel modeling

   

Will be plus

• ACCA, CPA, CIMA, or MBA is often preferred

   

Responsibilities

• Lead and oversee the accounting and financial reporting of all employee remuneration, including salaries, bonuses, benefits, equity-based compensation, and other reward programs.
• Ensure accurate and timely accounting for compensation-related expenses, accruals, payroll taxes, and employee benefit liabilities in compliance with applicable accounting standards.
• Manage budgeting, forecasting, and financial planning for employee compensation costs.
• Ensure payroll and compensation processes comply with local legislation, internal policies, and regulatory requirements across all supported jurisdictions.
• Lead and coordinate internal and external payroll and compensation audits, ensuring timely resolution of findings.
• Develop, implement, and maintain robust internal controls over payroll and compensation accounting processes.
• Prepare financial analysis, management reports, and insights on compensation costs to support strategic business decisions.
• Drive process optimization and automation initiatives to improve the accuracy, efficiency, and scalability of payroll accounting operations.
• Partner closely with Finance, HR, Tax, Legal, and external providers to ensure seamless compensation accounting processes.
• Lead, mentor, and develop the Payroll/Compensation Accounting team, ensuring high performance, knowledge sharing, and timely delivery of all key processes.

Benefits

• An exciting and challenging role in a fast-growing group of companies, with the opportunity to work alongside a multicultural team of top professionals in Development, Architecture, Management, Operations, Marketing, Legal, Finance, and other business areas
• A collaborative and inspiring work environment with passionate experts and leaders who foster a friendly culture and a success-driven mindset
• Modern offices in Warsaw, Limassol, Kyiv, Almaty, and Yerevan, with the flexibility to work remotely or on-site while building valuable professional connections
• Modern corporate equipment based on macOS or Windows, with additional equipment provided when needed
• Paid vacation, sick leave, personal days, and additional days off
• Corporate health insurance program to support your well-being
• Employee referral program with bonus opportunities
• Learning and development programs, including regular internal training, compensation for external education, and attendance at international professional conferences
• Mentoring and coaching rewards program
• Free in-house English courses
• In-house Travel Service
• A wide range of internal activities, including an employee platform with quests, gamification, gifts, and company news, as well as RedCore clubs for movie, book, and pet lovers, and themed office events

• Corporate events and team-building activities

   

Job Description

• Strong Python: 3+ years of professional experience in Python development
• 3 years experience in Object Oriented development 
• Proficiency with Python and common libraries (e.g., requests, asyncio, SQLAlchemy, FastAPI/Django/Flask depending on the stack)
• Passion for open source development and a community mindset
• Proficiency with Git workflows (forking, pull requests, code reviews)
• Understanding of open‑source licenses and contribution etiquette
• Understanding of Kubernetes fundamentals (pods, deployments, services, config maps, secrets) and familiarity with containerization (Docker)
• Strong SQL querying and optimization skills and familiarity with MariaDB‑specific features (e.g., storage engines, replication options)
• Background in performance optimization or distributed systems
• Knowledge of industry standard source control systems
• Proficiency in Team Foundation Server and Visual Studio is preferred
• Experience with industry standard communication protocols; REST. JSON, XML, and SOAP
• Experience with Agile software development methodologies
• Azure experience is preferred
• Good understanding of SDLC process, version control, code review, continuous integration and automated deployment tools.
• Experience working on large-scale, production-grade projects.
• Strong background with CI/CD methodology.
• B.Sc in Computer Science is an advantage.
• Advanced level of English

Job Responsibilities

• You will be part of a team responsible for building the Royalty management solution 
• Participate in all phases of managing the Application Lifecycle Management: requirements analysis, development, testing, and implementation. Participate in technical logic and design discussions
• Investigate and resolve bugs, performance issues, and security concerns
• Create, maintain, and present technical documentation to different audiences and levels
• Perform resource, technical and risk assessments
• Work with other development, architecture, and product development teams to ensure delivery of product
• Support release processes, versioning, and dependency management
• Engage constructively with contributors for clarification and/or improvements
• Assist in the timely completion of assigned development projects
• Prepare required documentation, including project plans, software program, and user documentation
• Assist in the estimation of time for development projects
• Being the main contact point for the US based client team
• Provide technical guideline to the local team
• Interview new candidates to join the team
   

Requirements

• 2+ years of experience in affiliate marketing within iGaming, with a proven track record of scaling affiliate partnerships
• Deep understanding of key performance metrics (FD, RD, R2D, LTV, Churn)
• Advanced proficiency in analytics tools, including Tableau and affiliate platforms; experience with predictive modeling is a plus
• Experience independently representing an affiliate program at industry conferences; understanding of regulatory requirements across key GEOs
• Proven success cases where the candidate played a key role in achieving results
• Established personal network of Tier 2–3 affiliates and partners

Responsibilities

• Manage and grow key strategic partners and the most profitable affiliate accounts
• Acquire high-value partners and strategic traffic sources
• Conduct complex negotiations and establish customized partnership terms
• Perform in-depth traffic performance analysis and scale profitable traffic sources and campaigns
• Work with CPA, RevShare, and Hybrid models at an advanced level
• Lead anti-fraud efforts and handle non-standard or high-risk traffic sources
• Launch and develop new GEOs and acquisition channels
• Collaborate with large media buying teams and manage complex partnership cases
• Provide support and expertise to Middle and Junior Affiliate Managers on complex issues upon Team Lead request
• Demonstrate deep iGaming expertise and consistently achieve KPIs in high-pressure environments

Benefits

• An exciting and challenging job in a fast-growing business group, the opportunity to be part of a multicultural team of top professionals in Development, Engineering and Architecture, Management, Operations, Marketing, etc;
• Great working atmosphere with passionate IT experts and leaders, sharing a friendly culture and a success-driven mindset is guaranteed;
• Beautiful offices in Kyiv, Warsaw, Limassol, Yerevan – work with comfort and enjoy the opportunity to build a network of connections with IT professionals day by day;
• Laptop & all necessary equipment for work according to the holding standards;
• Paid vacations, personal event days, days off;
• Paid sick leave;
• Medical insurance;
• Referral program: enjoy cooperation with your colleagues and get a bonus;
• Educational support by our L&D team: internal and external trainings and conferences, courses on Udemy;
• Free internal English courses;
• Multiple internal activities;
• Company events, team buildings.

Job Description

Required Experience

• 5 years of experience in software quality assurance, including functional and automation testing.
• Experience testing data-intensive systems and backend services.
• Hands-on experience with database testing (DB2, PostgreSQL, or similar) using SQL.
• Experience with test automation frameworks (Selenium, Cypress, or equivalent).
• Experience with Python
• Experience with API testing tools (Thunder Client, REST clients, or equivalent).
• Experience with CI/CD pipelines and Agile development methodologies.
• Bachelor's Degree in Computer Science, Information Technology, or related field — or equivalent work experience.

Preferred Experience

• Experience testing batch processing, ingestion pipelines, or distributed systems.
• Familiarity with copyright systems and data standards in the music industry (e.g., CWR, ISWC, IPI) is a significant plus.
• Experience with Azure DevOps for work tracking and pipeline integration.
• Familiarity with basic performance testing concepts is a plus, particularly against Java-based systems.
• Familiarity with DataDog for log monitoring and observability is a plus.
• Familiarity with Linux-based systems and command-line operations is a plus.
• Familiarity with Azure Portal and cloud resource management is a definite plus.
• Familiarity with AI as an augmentative tool for test case generation, documentation, and productivity is a plus.

Skills & Abilities

• Strong analytical and problem-solving skills with attention to detail.
• Ability to validate complex data transformations and multi-system workflows.
• Clear communication skills across technical and non-technical stakeholders.
• Ability to work independently and manage workload across multiple concurrent projects.
• Comfortable operating in a fast-paced, Agile delivery environment.

Job Responsibilities

Functional Testing

• Develop, coordinate, and execute end-to-end functional testing for core platform workflows including ingestion, parsing, transformation, and storage.
• Validate data integrity and correctness across DB2, PostgreSQL, and downstream processing pipelines.
• Create and maintain detailed test plans, test cases, and test data for functional, regression, and integration testing.
• Perform API testing and validation for services supporting data ingestion, matching, and processing workflows.
• Execute regression and smoke tests across assigned platforms for each release cycle.
• Identify, document, and manage defects using enterprise bug tracking tools (Azure DevOps / Jira).

Automation & Technical

• Develop and maintain automated test suites using Selenium, Cypress, or equivalent frameworks.
• Integrate automated tests into CI/CD pipelines (Azure DevOps preferred).
• Validate complex data-driven workflows including parsing, normalization, and transformation logic.
• Perform database validation testing using SQL across DB2 and relational systems.
• Support testing of distributed and batch processing systems including ingestion pipelines, parsers, and matching engines.

Collaboration & Process

• Collaborate with developers and architects to define acceptance criteria and testability requirements.
• Participate in Agile ceremonies: sprint planning, backlog grooming, and retrospectives.
• Provide clear and consistent status reporting on testing progress, risks, and quality metrics.
• Follow and contribute to QA standards, frameworks, and methodologies established by the team.

Middle+ Retention / CRM Manager (iGaming)

Employment: Full-time

Salary: $2,000–3,000 (depending on interview results and experience)

Probation Period: 1 month

Responsibilities

Develop and execute player retention strategies across the entire customer lifecycle (onboarding, activation, retention, reactivation, and anti-churn).

Build, launch, and optimize CRM campaigns across Push, In-App, Email, SMS, and Notification Center channels, including automated lifecycle and trigger-based communications.

Design and optimize bonus mechanics, including deposit bonuses, Free Spins, Free Bets, Cashback, missions, and tournaments.

Segment the player base and personalize communications and promotional offers.

Plan, execute, and analyze A/B tests to improve CRM performance.

Monitor and optimize key performance metrics, including Retention, Churn, LTV, ARPU, Reactivation Rate, Bonus ROI, and GGR uplift.

Collaborate with Product and Engineering teams to define and improve in-house CRM functionality.

Work closely with Product, Development, Anti-Fraud, and VIP teams.

Prepare regular performance reports and CRM analytics.

Requirements

2–3+ years of experience in CRM/Retention within iGaming, Sports Betting, or other high-frequency consumer products with transactional monetization.

Hands-on experience designing bonus strategies and lifecycle marketing campaigns.

Strong data-driven mindset with experience in customer segmentation, cohort analysis, funnel analysis, and A/B testing.

Experience working with CRM and marketing automation platforms, including in-house solutions.

Strong understanding of retention and monetization metrics, including Retention, LTV, Churn, and Bonus ROI.

English proficiency at a working level.

Nice to Have

Experience with in-house CRM development and writing technical requirements for engineering teams.

Experience with PostHog or similar product analytics platforms.

Basic SQL skills.

Experience in crypto casino and multi-GEO products.

Understanding of gamification mechanics, VIP programs, and Responsible Gambling principles.

Experience with fast/live games (e.g., Crash) alongside traditional slot products.

What We Offer

Full-time employment.

Competitive salary of $2,000–3,000, based on experience and interview results.

1-month probation period.

Middle+ Back-End Developer (Slots)

Employment: Full-time

Salary: $2,800–3,500 net (depending on interview results and experience)

Probation Period: 1 month

Tech Stack

Node.js · TypeScript · Fastify · PostgreSQL · WebSocket/Socket.IO · Firebase Auth · Provably Fair (HMAC-SHA256) · BigInt · Docker

Responsibilities

Design and develop the game engine using Node.js, TypeScript, and Fastify, including round state machines, outcome taxonomy, autoplay, and bet cancellation.

Implement Provably Fair mechanics (HMAC-SHA256) with server-side generation and verification, as well as precise financial calculations using BigInt.

Develop and maintain the wallet and transaction system, including multi-currency support, deposits, withdrawals, idempotency, and balance consistency.

Build platform features such as KYC, VIP levels, affiliate programs, leaderboards, and notifications.

Integrate external betting APIs, implement real-time communication using WebSocket/Socket.IO, and maintain authentication via Firebase.

Design and optimize PostgreSQL databases, work with Docker/Docker Compose, and ensure critical business logic is covered by automated tests.

Participate in code reviews and contribute to maintaining high standards of code quality, performance, and security.

Requirements

3+ years of back-end development experience with Node.js and TypeScript.

Strong knowledge of Fastify or Express.

Experience designing transactional systems, including balances, payment processing, idempotency, and PostgreSQL.

Solid understanding of deterministic computations, state machines, and precise financial calculations using BigInt or decimal-based arithmetic.

Experience integrating third-party APIs and building real-time applications.

Ability to work independently, write tests, conduct code reviews, and follow secure development practices.

Experience in iGaming/casino development, including Provably Fair algorithms (HMAC-SHA256) and RNG mechanics.

Nice to Have

Experience with Firebase Authentication (including 2FA/TOTP).

Experience implementing KYC/AML processes.

Experience with VIP and affiliate systems.

Familiarity with regulated betting platforms.

Experience building high-load financial or transactional systems.

What We Offer

Full-time employment.

Competitive salary of $2,800–3,500 net, based on experience and interview results.

1-month probation period.

Middle+ Back-End Developer (CCTV)

Employment: Full-time

Salary: $2,900–3,500 net (depending on interview results and experience)

Probation Period: 1 month

Tech Stack

Node.js · TypeScript · Express 5 · PostgreSQL · Prisma · Redis · Kafka/KafkaJS · ClickHouse · WebSocket/Socket.IO · PostHog · Pino · Vitest · Docker

Responsibilities

Design, develop, and maintain the betting engine using Node.js, TypeScript, and Express 5, including round lifecycle management, outcome calculation, payouts, and idempotent transaction handling.

Build and optimize the real-time communication layer using WebSocket/Socket.IO with synchronized broadcast delays, bet-lock mechanisms, and front-running protection.

Develop event-driven pipelines with Kafka/KafkaJS and build analytical and anti-fraud data flows using ClickHouse.

Integrate HLS (.m3u8) video stream parsing and computer vision services, and implement Provably Fair (commit-reveal) mechanisms.

Work with PostgreSQL/Prisma and Redis for data storage, caching, round state management, and rate limiting.

Implement observability and monitoring using PostHog and Pino.

Ensure system reliability through automated testing (Vitest), Docker-based containerization, and resilient feed handling, including failover and automatic void logic.

Participate in code reviews and contribute to maintaining high standards of code quality, performance, and security.

Requirements

3+ years of back-end development experience with Node.js and TypeScript.

Hands-on experience building high-load, real-time services using WebSocket technologies.

Strong knowledge of PostgreSQL and Redis, including transactions, idempotency, concurrency, and consistency.

Experience with message brokers such as Kafka or similar event-streaming platforms.

Solid understanding of service reliability, logging, monitoring, testing, and fault tolerance.

Previous experience in the iGaming or Sports Betting industry.

Nice to Have

Experience with ClickHouse or other analytical/column-oriented databases.

Experience implementing anti-fraud systems.

Experience working with HLS/RTMP video streaming.

Familiarity with computer vision technologies.

Knowledge of Provably Fair concepts and cryptographic mechanisms (HMAC).

What We Offer

Full-time employment.

Competitive salary of $2,900–3,500 net, based on experience and interview results.

1-month probation period.

Middle+ Full-Stack Developer (CCTV)

Employment: Full-time

Salary: $2,500–3,200 net (depending on interview results and experience)

Probation Period: 1 month

Tech Stack

Backend: Node.js · TypeScript · Express 5 · PostgreSQL · Prisma · Redis · WebSocket/Socket.IO · Kafka · ClickHouse · PostHog · Pino · Vitest · Docker

Frontend (Mobile-First): React · TypeScript · Next.js · Zustand · TanStack React Query · Tailwind CSS · Socket.IO Client

Responsibilities

Develop and maintain a mobile-first gaming interface, including a live player, one-tap betting and cash-out functionality, and real-time rendering of rounds and multipliers.

Build real-time client-server communication using WebSocket/Socket.IO, including round synchronization, leaderboards, and lobby chat.

Develop backend services with Node.js, TypeScript, and Express 5, including the betting engine, outcome processing, and bet history.

Design and maintain REST and WebSocket APIs.

Work with PostgreSQL (via Prisma) and Redis for data storage, caching, and state synchronization.

Write and maintain automated tests using Vitest, participate in code reviews, and manage local development environments with Docker Compose.

Collaborate with cross-functional teams to deliver a production-ready prototype and beta version of gaming products.

Requirements

3+ years of commercial development experience with TypeScript, including Node.js on the backend and React on the frontend.

Strong experience with real-time technologies (WebSocket/Socket.IO), including state synchronization, latency handling, and reconnection strategies.

Solid knowledge of PostgreSQL (Prisma or another ORM preferred) and Redis.

Experience designing REST and WebSocket APIs.

Understanding of performance optimization and responsive, mobile-first development.

Experience writing automated tests (Vitest/Jest), following Git workflows, and independently delivering Middle+ level tasks.

Previous experience in iGaming, Sports Betting, gaming mechanics, or Provably Fair systems.

Nice to Have

Experience with Kafka/KafkaJS and ClickHouse.

Familiarity with HLS (.m3u8) video streaming or computer vision technologies.

Experience building Progressive Web Apps (PWA).

Experience with high-load, real-time distributed systems.

What We Offer

Full-time employment.

Competitive salary of $2,500–3,200 net, based on experience and interview results.

1-month probation period.

Do you have a strong Senior AWS DevOps/ Infrastructure Engineer background, passion for problem-solving, and want to join one of the largest tech companies in the Nordics? Then this is the role for you!

We are looking for a Senior AWS DevOps/ Infrastructure Engineer to join Tieto Tech Consulting and work with our customer - a global engineering company that develops advanced solutions in bearings, sealing, and lubrication systems, helping industries improve the reliability, efficiency, and performance of rotating equipment.

In this role, you will be responsible for supporting, maintaining, and continuously improving both cloud-based and on-premises infrastructure, Microsoft services, monitoring solutions, automation, and operational processes. 

The position initially includes operational support responsibilities to ensure a smooth transition and gain a solid understanding of the existing environment. Over time, the support workload is expected to decrease significantly, with the primary focus shifting toward designing, implementing, and maintaining new infrastructure solutions, improving automation, and driving continuous platform enhancements.
The role requires hands-on experience with AWS, Microsoft administration, Remote Desktop Services, and a basic understanding of DevOps tools and automation.
Preferred candidate locations (due to project specifics): Kyiv, Lviv, or other cities in Western Ukraine.

Responsibilities

• Support and maintain AWS-based infrastructure and related services
• Administer Microsoft infrastructure components, including Active Directory and Domain Controllers
• Support Microsoft RDS – Remote Desktop Services
• Monitor infrastructure, applications, and services to ensure availability and performance
• Troubleshoot infrastructure, server, and application-related issues
• Participate in incident resolution, root cause analysis, and preventive actions
• Support automation of routine operational tasks using scripting tools
• Work with monitoring and alerting platforms to detect and resolve issues proactively
• Collaborate with infrastructure, DevOps, security, and application teams
• Document configurations, operational procedures, and troubleshooting steps

Requirements

• Strong background in outsourcing or outstaffing companies, with experience delivering services to external clients
• 5+ experience with AWS and DevOps tools (Terraform, Git, Kubernetes)
• Experience with Microsoft RDS – Remote Desktop Services
• Experience with Microsoft administration, including: Active Directory, Domain Controllers
• Understanding of infrastructure support and incident troubleshooting
• Good communication skills and ability to work in a shared team environment

Will be an advantage

• SQL & Databases (RDS, Basic SQL and database understanding)
• Monitoring & Alerting (Datadog, Grafana)
• Scripting & Automation (Bash, Python)