Senior Node.js Developer

Job description

Project info:

For our client, we are strengthening our existing development team responsible for the continued evolution of one of our most successful products—a centralized hub for managing engagements and teams as the single, common centerpiece. This platform consolidates real-world delivery experience into actionable workflows, enabling cross-team collaboration, real-time transparency, and insightful decision-making.

We’re looking for a Senior Back-End Engineer to join our growing platform team and build highly scalable, distributed systems using Node.js, NestJS, MongoDB, Azure, and messaging platforms such as Azure Service Bus. This role is ideal for engineers with a deep understanding of service architecture and production operations, a consultative mindset, and strong problem-solving skills. You’ll think holistically—about performance, observability, testability, and supportability—throughout the software delivery lifecycle, and make effective use of GenAI tools. You will collaborate closely with product and domain stakeholders, contribute to design reviews, and help ensure the platform remains the trusted centerpiece for engagement and team management.

Key Responsibilities:

• Design and implement distributed back-end services using Node.js, NestJS, and MongoDB within a microservices architecture.

• Deliver secure, production-ready APIs (REST and GraphQL) that meet SLAs for performance and availability.

• Leverage Azure platform services including Azure Service Bus, Event Hub, 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.

Prerequisites and skills

Required Skills & Experience:

• 7+ 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 (e.g., Nx).

• Demonstrated ability to participate in agile ceremonies and technical discussions in scaled environments.

Further information

Seniority: Senior

Location: Fully remote, with possible occasional in person team sessions / workshops / gatherings (i.e. 1x quarter) likely to take place in Prague

US Hours overlap needed (2-6 pm CET)?: Minimum 2-6pm CET, preferred 2-7pm CET

Language: EN

Start: ASAP