Jobs Developers

Who we are:

Adaptiq is a technology hub specializing in building, scaling, and supporting R&D teams for high-end, fast-growing product companies in a wide range of industries.

About the Product:

We power a B2B open finance infrastructure platform that aggregates financial data and initiates payments across institutions, enabling services like real-time underwriting, bank-to-bank transfers, and portfolio analytics.

Operating in a single market with plans for international expansion, the platform handles large-scale data ingestion, event-driven processing, and transaction routing for banks, fintechs, insurers, and retailers, meeting regulatory open finance requirements.

Engineers work on high-throughput processing, low-latency APIs, distributed microservices, and enterprise-grade security in a highly complex environment.

About the Role:

We are seeking a Senior Backend Engineer who can design and own backend systems end-to-end, mentor other developers, and handle production Kubernetes environments.

You will collaborate with product and engineering, guide technical direction, mentor others, and help shape best practices in microservices, event-driven architecture, and cloud-native systems.

Key Responsibilities:

• Architect and implement core backend features using Python, Django, and Celery.
• Design and maintain RESTful APIs and event-driven microservices for data exchange and payment initiation.
• Model, query, and optimize complex datasets in PostgreSQL.
• Deploy, monitor, and troubleshoot services on Kubernetes in AWS (and on-prem OpenShift environments).
• Drive technical designs: define data schemas, service contracts, and CI/CD pipelines.
• Collaborate with product managers to refine requirements and translate them into scalable solutions.
• Mentor and review work of junior and mid-level engineers; share domain knowledge.
• Participate in on-call rotation and incident response to maintain high availability.
• Contribute to lightweight React front-end adjustments when backend integrations require UI support.
• Help set standards, frameworks, and patterns for future development.

Required Competence and Skills:

• 6+ years of experience with Python building, designing, and owning backend systems
• Proven expertise in Django, building backend applications and APIs
• Proven experience with Celery (or equivalent task-queue frameworks) 
• Strong background in designing and consuming REST APIs and event-driven microservices.
• Production experience with Kubernetes on AWS.
• Deep knowledge of PostgreSQL - data modeling, indexing, query optimization
• Hands-on with cloud-native services and serverless functions (e.g., AWS Lambda).
• Solid understanding of CI/CD practices and infrastructure as code.
• Experience in diagnosing and resolving performance and reliability issues in high-traffic systems.
• Fluent in English, with strong written and verbal communication skills

Nice to Have:

• Experience with Oracle databases or Node.js services.
• Prior work with React for lightweight front-end tasks.
• Familiarity with OpenShift.
• Familiarity with on-prem deployments and integration with corporate environments.

Why Us:

We provide 20 days of vacation leave per calendar year (plus official national holidays of a country you are based in).

We provide full accounting and legal support in all countries we operate.

We utilize a fully remote work model with a powerful workstation and co-working space in case you need it.

We offer a highly competitive package with yearly performance and compensation reviews.

Freelance Back-End Developer (.NET) — iGaming

About the Role:
We are looking for an experienced Back-End Developer (.NET) for freelance collaboration in the iGaming domain. The primary focus is supporting existing projects, developing new features, and working with game mathematics (RTP, simulations).



Technical Stack:

.NET 6 / C# 10
Backend services with IPC/protocol serialization patterns (paytable XML)
Deterministic RNG and probability-table driven logic
NUnit, FluentAssertions
Git, CI/CD, Argo, Kubernetes


Requirements:

3+ years of experience as a Back-End Developer (.NET 6 / C# 10)
Mandatory experience in iGaming (slots) — casino game server patterns
Strong understanding of backend service architecture and serialization/IPC patterns
Experience with deterministic RNG and probability-table driven game logic (paytable XML)
Solid unit & integration testing skills (NUnit, FluentAssertions), including deterministic tests for RNG-driven systems
Ability to propose safe fixes, add regression tests, and explain probabilistic side effects
Good Git habits, clean and reviewable code, test-first mindset
Upper-Intermediate English or higher (written communication, documentation)
Hands-on experience with AI tools as part of everyday work is a must


Personal Qualities:

Ability to onboard quickly into existing projects and codebases
Proactive and self-driven — comfortable working without micromanagement
Clear written communication and documentation habits
Analytical mindset with attention to probabilistic edge cases

Support and development of existing game backend projects
Design and implementation of new features and game mechanics
RTP testing and simulation runs
Performance optimization and system stability
Working with game logic and integrations

C++ interop or mixed-language system experience (project references C++ gating logic)
Performance profiling and low-latency optimizations
CI/CD, Argo, Kubernetes hands-on experience
Prior work on casino or gambling game logic

We are looking for an experienced and highly skilled Senior React Developer / Senior Front-End Developer to join our growing team. The ideal candidate will have strong expertise in building modern, scalable, and high-performance web and mobile applications using React technologies, along with experience working with Vue.js applications.

You will work closely with designers, product managers, and back-end developers to create seamless user experiences across web and mobile platforms. This role requires strong technical knowledge, attention to detail, and the ability to take ownership of front-end architecture and development.

Key Responsibilities

• Develop and maintain responsive web applications using React.js and Vue.js.
• Build and support mobile applications using React Native.
• Collaborate with UI/UX designers to implement modern and user-friendly interfaces.
• Write clean, scalable, and maintainable code following best practices.
• Optimize applications for maximum speed, performance, and scalability.
• Integrate APIs and work closely with back-end developers.
• Participate in code reviews, debugging, and technical problem-solving.
• Ensure cross-browser and cross-device compatibility.
• Contribute to front-end architecture and technical decision-making.
• Stay updated with the latest front-end technologies and development trends.

Requirements

• 5+ years of experience in front-end development.
• Strong expertise in React.js and modern JavaScript (ES6+).
• Experience working with Vue.js.
• Experience building mobile applications using React Native.
• Solid understanding of HTML5, CSS3, TypeScript, and responsive design principles.
• Experience working with REST APIs and third-party integrations.
• Familiarity with state management libraries such as Redux, Zustand, Vuex, Pinia, or Context API.
• Experience with Git and collaborative development workflows.
• Strong problem-solving skills and attention to detail.
• Ability to work independently in a remote environment.
• Good communication and teamwork skills.

Nice to Have

• Experience with Next.js or modern React frameworks.
• Familiarity with Nuxt.js for Vue applications.
• Familiarity with mobile app deployment processes for iOS and Android.
• Understanding of performance optimization and testing frameworks.
• Experience working in agile development environments.

We are looking for a visionary Senior .NET Developer to take full ownership of the backend for our Cloud Analytics Platform. This role is perfect for a technical leader who is passionate about AI integration and wants to be a pioneer in using the Model Context Protocol (MCP). You will not only architect scalable solutions but also mentor other developers, ensuring technical excellence and driving the project’s success from day one.

The Project

You will be leading the development of a cutting-edge Cloud Analytics Platform that directly impacts the quality of medical training worldwide. The platform helps healthcare centers achieve prestigious SSH accreditation by leveraging AI-powered insights and secure data analytics. This is a mission-driven project where you will work with a leading-edge AI stack (Claude API, LLM agents) and high-standard security protocols.

Tech requirements:

• 5+ years of experience with C# / .NET 8 backend development.
• Mandatory experience with AI service integration (Claude API, LLM integration, or building AI-powered agents).
• Strong knowledge of Model Context Protocol (MCP) and building MCP Tool Servers using the .NET SDK.
• Proven track record of mentoring developers and conducting code reviews.
• Expertise in PostgreSQL and designing analytical data models (Star Schema).
• Strong understanding of RESTful API design, Dependency Injection, and Clean Architecture.
• Solid grasp of authentication (JWT + OAuth2) and strict multi-tenant isolation.
• Familiarity with CI/CD pipelines (GitHub Actions) and Docker.
• English — Upper-Intermediate (B2), Ukrainian — fluent.

Nice to have:

• Experience with reporting libraries like QuestPDF or ClosedXML.
• Knowledge of healthcare standards (GDPR, HIPAA, or SSH accreditation).
• Experience with Azure (App Service, Container Apps, Managed PostgreSQL).
• Experience with Python microservices for data exchange.

What you will do:

• Act as the Backend Owner, taking full responsibility for the technical design, scalability, and performance.
• Mentor and guide the Middle .NET Developer through regular code reviews and consultations.
• Design and maintain services for the Cloud Analytics Platform following Clean Architecture.
• Develop and optimize PostgreSQL databases (fact and dimension tables) for high-performance queries.
• Build and maintain the Metric Catalog as a single source of truth for business metrics.
• Develop MCP Tool Servers to securely expose metrics to the AI Query Assistant.
• Implement daily batch ingestion pipelines (ETL) using .NET Worker Services and Quartz NET.
• Integrate Claude API (via Microsoft.Extensions AI) for natural-language querying.
• Ensure GDPR compliance (PII pseudonymization, AES-256 encryption, audit logging).

What we offer:

• Access to internal and external training, certification reimbursement;
• 18 working days of paid vacation, 10 compensated public holidays, and up to 10 paid sick days;
• Partial reimbursement for external English classes / free internal courses / speaking clubs;
• Up to $180/year for sports activities;
• A strong culture of knowledge sharing with senior experts you can really learn from;
• New equipment provision, and accounting support if needed;
• Competitive market-level salary with regular performance and salary reviews;
• Extra perks such as an insurance fund, seasonal gifts, celebrations, and additional team compensations;
• A psychologically safe and supportive environment;
• Active social responsibility and continuous support for the Armed Forces.

📌 If you believe this role could be a great match for you, please send your CV — we will review it and get in touch with you if there’s a match.

Position Overview:

Your expertise as a Senior Python Backend Developer and your understanding of web security principles will be invaluable to our team. You will be handling a complex, high-traffic platform with thousands of registered users, including video streaming, image processing, and an internal CRM.

Required Skills and Experience:

• Expertise in Python (5+ years) and Django framework, ORM, migrations, admin interface, creating REST API with Django Rest Framework;
• Experience with setting up or maintaining AWS (S3, RDS, SNS, SQS, CloudFront, CloudFormation) and implementation of OAuth flows;
• Proficiency with Celery (4.x/5.x) and message brokers (Redis or RabbitMQ);
• Experience using Docker (Dockerfile, docker-compose) and basic CI/CD knowledge (GitHub Actions or similar);
• Good knowledge of SQL and relational databases (preferably PostgreSQL);
• Proficiency in Git (Pull/Merge Requests, Code Reviews, Git Flow);
• English language — Full professional proficiency in English

This is a Senior position only. Only apply if you have at least 5 years of experience in these areas:

• Language: Python (primary), basic JavaScript (Vue.js — nice to have)
• Database: PostgreSQL
• Framework: Django, Django REST Framework
• Models: Django ORM models (relational)
• Architect Patterns: RESTful API
• Broker Message: Redis or RabbitMQ
• Cache: Redis
• Monitoring Tools: Sentry (Pytest, Flake8, Bandit, wemake-python-styleguide - nice to have)

Twin Win Games is a Ukrainian company with a people-first mentality, we work remotely and ensure a friendly, creative, and dynamic environment in the team.

Our culture of diversity & inclusion unites the most outstanding talents to follow Win-Win ethics in our life and work.

The ideal candidate is an organized professional with the desire to gain experiance in iGaming Development, to take our company’s product development process to the next level.

We are searching for an individual who wants to grow with the company and will strive to improve performance.
If you are driven and energetic, you will have additional opportunities here at Twin Win Games.

Requirements

- 3+ years of JavaScript game development experience;
- Strong knowledge of HTML5/CSS3;
- Advanced Experience in creating HTML5 games;
- Advanced Javascript ES6+;
- Advanced Experience with some of libraries/frameworks (Phaser, Pixi, Three);
- Strong knowledge of object oriented and functional programming, knowledge of game programming patterns, practices and techniques;
- Understanding of performance optimization algorithms, memory management, threading;
- Good delegation and time management skills
- Problem-solving abilities
- Design highly scalable software solutions to improve functionality and system longevity
- Collaborate with project managers to implement end-to-end solutions for complex projects
- Analyze current systems to maintain integrity and improve architecture
- Train in-house personnel and other end users on software and applications
- Remain informed of current trends and technology developments

Responsibilities

- Creating browser-based HTML5 slot games for desktop and mobile devices;
- Participate in code review and tasks planning activities;
- Participate in discussion with clients on requirements for the game;

Would be a plus

- Knowledge and practical experience with React;
- Experience with Spine animations;
- Understanding WebGL;

Work conditions

When you join Twin Win Games, you can expect the following perks and benefits:
- Flexible working hours and the freedom to work remotely;
- Paid vacation of 20 workdays/year and 5 workdays/year for sick leaves;
- Unlimited unpaid day-offs to take care of personal matters;
- A range of paid benefits to choose from;
- Personal development plan to support your growth
English speaking club for enhancing your language skills;
- Skills training to sharpen your expertise;
- Education office featuring internal and external experts and mentorship programs;
- Structured processes through our corporate confluence;
- Open-minded management style with transparent communication of company strategy and plans;
- Performance-based reviews to recognize and reward your contributions;
- Stress management initiatives, including 1-1 meetings and a feedback culture;
- Engaging in corporate team-building events, marathons, and online challenges;
- Family-friendly policies, including special congratulatory gifts for personal milestones like the birth of a child or a wedding.
 

We are Formula Spin, an ambitious team specializing in the development of slot games.

Our mission is to create innovative, engaging, and high-quality games that set new standards in the industry.

Formula Spin’s work is guided by principles that unite us and make our company not only successful but also a comfortable place for all employees.

We are looking for an ambitious and experienced Spine Animator.

Format: Remote;

Experience: 3+ years;

Requirements:

• Significant experience working with Spine (3.8 / 4.1+) and integration with Pixi.js or similar WebGL engines;
• Understanding of game engine specifics with a focus on performance and resource size optimization;
• Advanced Spine skills: meshes, deformation, bones, complex animation settings;
• Experience preparing assets in Photoshop and creating effects in After Effects suitable for export to Spine sequences;
• Deep understanding of WebGL performance limitations (draw calls, batching, layering, masks, effects of blending modes);
• Experience working with texture atlases and sprite sheets (tiling, clipping, quad-mapping);
• Ability to optimize animations for performance and file size without compromising visual quality;
• Ability to follow technical guidelines, naming conventions, and collaborate with developers;
• Ability to quickly implement integrations based on feedback;
   

Will be a plus:
 

• Experience with particle effects or procedural animation approaches;
• Experience creating video previews of animations;
  An introduction to artificial intelligence tools;

📩 If this sounds interesting, drop me a line! Let’s talk about how you can join our team!

About the Role

As a Full Stack Developer, you will play a pivotal role in designing, developing, and maintaining our web applications, ensuring high performance and scalability. You will work closely with cross-functional teams to deliver high-quality software solutions while contributing to projects that integrate advanced machine learning models, including large language models (LLMs), to deliver personalized user experiences and innovative features. You’ll be part of a small, collaborative team that values continuous improvement and embraces the latest in technology.

Our technology stack includes .NET Core, C#, React.js, Node.js, Typescript, SQL Server 2019, Docker, Kubernetes, Google Analytics, and Power BI.

Our ecosystem includes 170 connected applications and services, our main database is 2 TB, our sites handle 1 million visitors a day and 2 billion requests a month, and we release changes to production several times a day. We are a continuous integration and continuous deployment (CI/CD) organization.

What You’ll Do:

• Collaborating with cross-functional teams to demonstrate how they can effectively leverage our infrastructure to meet their objectives.
• Designing, developing, and maintaining robust, scalable, and efficient web applications, backend logic modules and database structure.Identifying and implementing strategies to improve the stability, performance, and scalability of our applications and services.
• Responding promptly to production incidents, employing creative problem-solving skills to minimize downtime and mitigate potential issues.
• Supporting team members, fostering a culture of continuous learning and technical excellence.
• Conducting code reviews and ensuring adherence to coding standards and best practices across the team.
• Participating in the evaluation and integration of new technologies, including AI and automation tools, to drive innovation and efficiency.

What We’re Looking For:

• Minimum of 3 years of professional experience in full-stack development.
• Extensive experience with React.js, including state management (Redux, Context API) and component-based architecture.
• Proficiency in .NET frameworks, C#, and data access technologies.
• Familiarity with Unit / Integration tests using any of Jest, NUnit, Playwright, React Testing Library.
• Strong knowledge of front-end technologies such as HTML5, CSS3, JavaScript, and TypeScript.
• Familiarity with database systems such as SQL Server or MySQL.
• Strong knowledge of design and architectural patterns, SOA design & web service development.
• Strong understanding of development processes.
• Experience with LLMs / Generative AI tools (e.g., OpenAI, Copilot, Cursor).
• Experience with Web Page performance optimization and measurement will be a plus.
• Degree in Computer Science, a related discipline, or equivalent work experience.
• Upper-intermediate level of English.
• Excellent problem-solving and analytical skills, with a keen attention to detail.
• Strong communication and interpersonal skills, with the ability to work effectively in a team-oriented environment.
• Ability to manage multiple tasks and prioritize effectively in a fast-paced environment.

Perks and Benefits

• Time off throughout the year (paid and unpaid)
• Professional development support and encouragement
• Resources to help improve your overall well-being
• Free JustAnswer membership

Welcome to ApexTech 🙌

We are looking for 🚀 Fullstack Developer 🚀 who enjoys learning, building, and switching between projects.

Responsibilities:

● Advanced Backend and Frontend developments (JavaScript / NextJS / ReactJS)
● Mentor / Coach other team members
● Code reviews and refactoring
● Advanced problem analysis and solving in production
● Bug fixing, follow-up and workaround, identification of pain points in the platform
● Responsible for the efficiency of all the components in the infrastructure
● Write technical specifications when needed
● Automate and Optimize repetitive tasks

Required skills:

● 5+ years of experience in JavaScript fullstack development (NodeJS / NextJS / ReactJS)
● Proficient in building SSR/SSG/ISR web applications.
● Proficient in building and consuming APIs - Rest / GraphQL
● Strong knowledge of accessibility (a11y)
● Strong understanding of SEO best practises, semantic HTML and metadata
● Familiar with Cloudflare for CDN, caching, security and performance optimizations.
● Familiar with Cloud DevOps (AWS preferred)
● Eye for detail and sensitivity for graphics and aesthetics
● Adaptability and responsiveness
● Great analytical skills
● Fluent in English
● Team-player

Nice-to-have:

● Experience with Python Backend Development (Django / FastAPI)
● Experience with a Headless CMS (like Sanity / Contentful, or Strapi)
● Experience using Tailwind CSS or CSS-in-JS solutions.
● Experience using UI libraries (like RadixUI / HeadlessUI / MaterialUI)
● Exposure to internationalization (i18n) in NextJS

Interview process:

1. Intro-call with the Recruiter.
2. Technical Interview.
3. Client Interview.

What do we offer?

💻 Full remote work and meetings for brainstorming.
💡Freedom and flexibility.
🚀A team of top experts and synergy of the entire organization.
💸Competitive salary.
🌿 Vacation and sick leaves.
🙏Therapy sessions with our psychologist.
📚Budget for professional development.
💃Corporate events and team building.

We are continuously expanding and are looking for a skilled Senior Python Developer to join our team and contribute to the development of an innovative AI-powered platform.
 

Ideally, you should have strong experience in backend development, AI/LLM-based solutions, and distributed systems, along with a solid understanding of cloud infrastructure and modern automation technologies.
 

This position will play a key role in designing and developing scalable AI-driven solutions, collaborating closely with cross-functional teams, and contributing to the architecture and evolution of next-generation intelligent automation systems.

Responsibilities:

• Design, develop, and maintain scalable backend services using Python

• Build and improve AI-powered workflows and autonomous agent systems

• Develop integrations with LLM providers and AI frameworks

• Implement browser automation and orchestration solutions

• Design and optimize RAG pipelines and context-aware AI systems

• Collaborate with cross-functional teams to deliver high-quality solutions

• Participate in architecture discussions and technical decision-making

• Optimize system performance, scalability, and reliability

• Mentor team members and contribute to engineering best practices

• Stay up to date with advancements in AI, LLMs, and automation technologies

Requirements:

• 5+ years of commercial experience with Python

• Technical education (Computer Science, Software Engineering, or related field)

• Strong experience with backend development and distributed systems

• Commercial experience with AI/LLM-based solutions

• Experience with LangChain, LangGraph, OpenAI API, or similar AI frameworks

• Strong understanding of RAG architectures and AI agent workflows

• Experience with FastAPI and/or Flask

• Experience with AWS cloud services

• Experience with Docker and Kubernetes

• Solid understanding of CI/CD and DevOps practices

• Experience working with relational and non-relational databases

• Strong problem-solving and analytical skills

• Upper-Intermediate level of English or higher
 

Tech Stack:

Python, FastAPI, Flask, AWS, Docker, Kubernetes, PostgreSQL, MongoDB, Redis, Pinecone, OpenAI API, LangChain, LangGraph, Langfuse, Celery, Puppeteer, Terraform, CI/CD.

Nice to Have:

• Experience with browser automation systems

• Experience building AI agents or autonomous workflows

• Experience with remote execution environments

• Understanding of observability and monitoring for AI systems

• Previous experience working on AI automation or SaaS platforms
 

What we offer:

• IT Club membership

• 18 days of vacation + 8 days of paid state holidays

• Health insurance

• Compensation for educational courses, training, and certificates

• Compensation for sport activities

• Cozy and pet-friendly office

• Regular office treats & snacks

• Office relax zone with PS4, VR, table games, table tennis, aero hockey, mini football table, and gymnastic ladder

Our Client - European product-oriented company in the energy and mobility domain is looking for a Flutter Developer to join the team working on a customer-facing mobile application. The role focuses on the development and maintenance of a mobile product, including implementation of frontend solutions, participation in feature planning, and close collaboration with cross-functional teams to deliver seamless and user-friendly experiences.

Important:
• 6-month project with partial on-site presence in Norway
• Part-time involvement (50%)
• Relocation and travel-related support can be discussed

Responsibilities

• Develop and maintain mobile applications using Flutter (Dart)
• Build responsive, user-friendly UI solutions following modern frontend best practices
• Participate in technical discussions, solution design, and feature planning
• Improve frontend architecture and maintain build pipelines
• Write and maintain tests to ensure code quality and application stability
• Collaborate closely with backend engineers, designers, and product stakeholders

Requirements

• 3+ years of commercial experience with Flutter / Dart
• Strong understanding of mobile application architecture and frontend best practices
• Experience integrating APIs and backend services
• Experience with Git / GitHub
• Ability to work independently and proactively
• Strong communication and collaboration skills
• English level sufficient for daily communication in an international environment

Nice to Have

• Experience with CI/CD pipelines
• Experience building scalable consumer-facing applications
• Background in energy, IoT, or mobility-related products

This opportunity would fit a strong Middle or Senior-level engineer who enjoys building reliable products with real-world impact.

Backend Engineer

[Freelance, Full-time, Remote]

SNEAK PEEK

⇨ Location: Remote, GMT+0/GMT+4

⇨ Interview process: HR interview + take-home challenge ⇨ technical discussion ⇨ final interview

WHO ARE WE? 

At Rounds, we believe in harnessing the power of cutting-edge technology to drive business success. Our transformative, AI technology identifies and optimizes mobile assets, while our team of experts, with their unparalleled human capital and business acumen, provides the strategic direction and support to turn mobile assets into profitable businesses. Together, we are revolutionizing the mobile industry. 

THE ROLE

This is a hybrid Backend/Platform Engineering role to lead cloud and backend systems migrations. It involves shipping backend solutions that move the needle at the scale of millions of dollars in business impact.

You will evaluate, plan, and migrate backend systems from various stacks and cloud providers (AWS, Azure, GCP, and more) into our infrastructure. By leveraging AI tools and automation, you will significantly accelerate migrations and modernization efforts.

This role suits Backend Engineers who aren't afraid to jump in and shape the DevOps stack.

Responsibilities

• Architect, evolve, and oversee backend infrastructure transformations (NodeJS, Python and more).
• Assess complexity, outline risks, and estimate effort and timelines.
• Rebuild or refactor backend/cloud components when needed, including rewriting services (with AI assistance).
• Utilize AI tools and agents to speed up research, refactoring, documentation, and investigations (Claude, Cursor and more).
• Design and maintain cloud environments using Infrastructure as Code (Terraform preferred) mainly for GCP, AWS and Azure.
• Build, maintain, and improve CI/CD pipelines.

Hiring manager: Igor Yakunin 

WHAT ARE WE LOOKING FOR?

Must-have:

• 5+ years Backend Engineering.
• Hands-on experience with GCP or strong AWS/Azure background and willingness to transition.
• Practical experience with Terraform (or similar IaC).
• Strong Linux, networking, and cloud fundamentals.
• Experience with Docker and containerized deployments.
• Proficiency in at least one backend language (Python, Node.js, Go, Java, etc.).
• Experience with SQL and/or NoSQL databases.

Nice-to-have:

• Experience with Kubernetes or other orchestration tools.
• Familiarity with CI/CD platforms such as CircleCI, GitHub Actions, GitLab CI, or ArgoCD.
• Experience with reverse-engineering unknown systems or digging through legacy setups.
• Experience with monitoring tools such as Datadog, Prometheus, or GCP Monitoring.
• Background in refactoring, rewriting, or modernizing backend services.

INTERESTED?

Our recruitment process consists of the following steps: 

• HR Interview (45 min) - Discuss your background and fit.
• Take-Home Challenge (~2 hours of work) - Practical assignment reflecting real work.
• Technical Interview (60 min) - Evaluate cloud, DevOps, and coding skills.
• Final Interview (60 min) 

We look forward to hearing from you! 

Full Stack Developer

[Full-time, Remote, Freelancer]

SNEAK PEEK 

⇨ Location: Remote, GMT+0/GMT+4

⇨ Interview process: HR interview ⇨ technical interview ⇨ take-home challenge ⇨ final interview ⇨ offer 

WHO ARE WE? 

At Rounds, we believe in harnessing the power of cutting-edge technology to drive business success. Our transformative, machine-learning technology identifies and optimizes mobile assets, while our team of experts, with their unparalleled human capital and business acumen, provides the strategic direction and support to turn mobile assets into profitable businesses. Together, we are revolutionizing the mobile industry. 

THE ROLE

We are looking for an experienced Full-Stack developer with a passion for building complex systems to further expand our set of internal tools. You will architect and develop our core internal systems, understand and predict user interactions, and create well-written code, based on the business needs. You will work closely with other developers and QA testers, using the Agile methodology and a quality-first approach.

Hiring manager: Nadav Nagel, Software Team Lead 

WHAT ARE WE LOOKING FOR?

• 5+ years of commercial experience building publicly available websites
• 3+ years of experience in backend development using Typescript and Node.js
• Up-to-date with at least one of the latest UI frameworks (React, Vue.js, etc.)
• Detail-oriented and able to adhere to deadlines
• Excellent communication skills in both written and verbal English

INTERESTED?

Our recruitment process consists of the following steps: 

• HR interview: 30 min
• Take-home challenge.
• Technical interview: 60 min
• Final interview

At Uvik Software, we specialize in assembling top-tier dedicated development teams and delivering exceptional software solutions to clients across the globe. We are passionate about clean code, great collaboration, and cutting-edge technology👩‍💻🧑‍💻🦾.


We’re on the lookout for a Python Engineer who is eager to grow, build scalable backend systems, and contribute to exciting projects in a fast-paced, agile environment. If you're a motivated developer with a sharp eye for detail and a passion for problem-solving, this is your opportunity to make a real impact.

📍Location: USA Only
📌Job Type: Contractor, Full-time


💼 Responsibilities:

- Design, develop, and maintain backend services and RESTful APIs using Python (Flask or FastAPI)
- Write clean, maintainable, and scalable code following best practices (PEP8)
- Work with SQL databases (PostgreSQL preferred) to design, query, and manage data
- Develop unit and integration tests with tools like Pytest
- Document APIs using tools such as Swagger or Insomnia
- Collaborate with the team via Git (GitHub/GitLab/Bitbucket) and participate in code reviews
- Support CI/CD pipeline setup (e.g., Jenkins, GitLab CI)
- Debug and troubleshoot backend systems
- Integrate and utilize Large Language Models (LLMs) for enhanced application capabilities
- Communicate clearly and effectively in English (both written and spoken)


✅ Requirements:

- 2–3 years of hands-on experience in Python development
- Strong knowledge of Python fundamentals
- Practical experience with Flask or FastAPI
- Experience working with SQL databases
- Experience or interest in integrating LLMs into backend systems
- Familiarity with Docker
- Basic understanding of Git or other version control systems
- Exposure to unit testing, API testing, and tools like PyLint or Flake8
- Ability to work in Linux and/or Windows environments
- C1 or higher level of English
- A growth mindset and proactive attitude



Nice to Have

Experience with CI/CD pipelines (e.g., Jenkins, GitLab)
Familiarity with tools like Jira or Crucible
Exposure to cloud platforms or Kubernetes


🍀What We Offer:

- Top Equipment: MacBook Pro + Dell Monitor
- Flexible Schedule: Balance your life with adaptable working hours
- Meaningful Projects: Work with real-world technologies that make a difference
- Professional Growth: Long-term opportunities and support for your development
- Competitive Compensation: Based on your skills and contribution

Ready to level up your Python skills and work with a supportive, forward-thinking team?
Apply now and let's build something great together!

International product startup building next-generation AI-powered developer tools is looking for a Senior Backend Engineer (Node.js / TypeScript). The product combines AI generation, visual editing, and product structuring into a unified platform for building and scaling web applications. This role focuses on cloud infrastructure and distributed systems, with a high level of ownership in building a scalable backend foundation for an AI-driven product.

You’ll be joining a team where engineering excellence is the standard. We value clean, type-safe and tested code, continuously deployed on reliable infrastructure that we build. If you enjoy the challenge of creating a smart backbone for the next generation of web development tools, you’ll fit right in.

Core Responsibilities

• Platform Services and APIs: Design and develop a robust ecosystem of services using Node.js and TypeScript that handle complex project lifecycles and real-time synchronization. Full ownership of the platform APIs, documentation and client libraries.
• Infrastructure as Code (IaC): Maintain and scale our global footprint on modern clouds and services using Terraform. You will be responsible for ensuring our environment is reliable, secure, and optimized for performance.
• Database & State Management: Manage data persistence for high-concurrency environments. You’ll manage complex data and caching layers to ensure efficient data access including schema design and caching strategy.
• Distributed Systems: Build and maintain the orchestration layer that handles high-volume file operations, background jobs, and complex state transitions across the Dazl ecosystem.
• Security & Compliance: Implement rigorous security protocols, including IAM management, data encryption at rest/transit and secure API design.
• CI/CD & Observability: Own the deployment pipeline and monitoring stack. Improve our ability to detect, debug, and resolve production issues before they impact users.

Requirements

• Strong professional experience in backend development, advantage for team leading skills.
•  Expert-level TypeScript and Node.js (Async patterns, Streams, Performance tuning).
• Proven experience of managing CI/CD pipelines of production-grade systems on modern clouds - AWS/GCP/Azure. You should understand VPCs, IAM roles, and containerized deployment strategies using technologies like Terraform or Pulumi.
•  Proficiency in SQL (PostgreSQL/Aurora) and NoSQL (Mongo/DynamoDB/Redis).

Advantage: Familiarity with the unique challenges of building AI products, such as non-deterministic outputs and high-latency service integration.