For one of our clients, we are looking for a Lead FS Developer.

Job details:

• Full Remote, with few travelling days required throughout the year in Prague
• Full-time
• 12 months (extensions possible)
• Working Hours: Must be able to overlap with US hours (2-7pm CET)

Role Summary:

We’re seeking a Technical Leader to head the platform team and shape highly scalable, distributed systems using Node.js, TypeScript, React, Postgres DB, Azure, and messaging platforms such as Azure Service Bus. You will set architectural direction, elevate engineering standards, and mentor engineers, bringing a consultative mindset and strong problem-solving skills. You’ll think holistically about performance, observability, testability, and supportability throughout the software delivery lifecycle, and drive the effective use of GenAI tools. Partnering closely with product and domain stakeholders, you will steer design reviews, own reliability and production operations, and ensure the platform remains the trusted centerpiece for engagement and team management.

Please note that we are looking for an AI-driven team, with the ability to move through the SDLC using Cursor agents at a minimum. There will be more human-in-the-loop involvement initially, as we need to validate the maturity of the process.

Tech stack:

60% TypeScript backend (Node.js / Fastify)

30% TypeScript frontend (React / Vite)

10% Infrastructure / tooling / Python

Key Responsibilities:

• Design and implement distributed back-end services using Node.js, TypeScript, JS, Python, and Postgres DB (with PG vector) within a microservices architecture.
• Deliver secure, production-ready APIs that meet SLAs for performance and availability.
• Leverage Azure platform services including Azure Service Bus, Event Hub, Azure Container Apps, and Functions to build resilient systems.
• Participate in planning and refinement sessions — understand the ‘why’ behind the requirements and shape the ‘how’.
• Apply GenAI tools effectively across the SDLC for documentation, testing, code generation, and analysis.
• Write automated tests and ensure strong test coverage using modern testing libraries and frameworks.
• Ensure proper instrumentation and monitoring is in place via tools like DataDog, and lead post-deployment support readiness.
• Collaborate closely with front-end engineers, product owners, and QA to ensure end-to-end quality and alignment.
• Contribute to pull requests and design reviews; mentor less experienced engineers by modeling best practices.

Requirements:

• 10+ years of back-end development experience.
• Expertise in building distributed systems at scale using microservices and event-driven architectures.
• Experience with Node.js/NextJs and back-end integration patterns (API routes, server-side logic).
• Knowledge of MongoDB (Document DB) including schema design, indexing, and performance optimization.
• Deep familiarity with RESTful APIs and GraphQL, including security and query performance tuning.
• Hands-on experience with Azure cloud services, especially Azure Service Bus and Event Hub.
• Experience with GenAI tools integrated into SDLC workflows (e.g., code assist, documentation, analysis).
• Strong understanding of non-functional requirements (NFRs) such as performance, reliability, and observability.
• Proficient with CI/CD pipelines, GitHub workflows, and Trunk-Based Development in a monorepo setup.
• Demonstrated ability to participate in agile ceremonies and technical discussions in scaled environments.

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