Senior Full Stack Node/TypeScript Engineer

We are looking for a Senior Fullstack Engineer with strong and TypeScript expertise. This role is for someone who can build a BI product from the ground up — owning both backend and frontend development while collaborating closely with data engineering and product teams.

Project – a next-generation Business Intelligence (BI) platform for customers in the temporary staffing industry. The solution will provide powerful analytics through a custom frontend and backend that integrates into data pipelines that are being developed as part of the solution.

Requirements

• 5+ years of experience as a Fullstack Engineer with & TypeScript.
• Strong command of TypeScript best practices (types, generics, strict mode, etc.).
• Proven experience with NestJS and backend architecture patterns (modules, interceptors, guards).
• Strong skills, including React Server Components and Hooks.
• Strong styling expertise with Tailwind CSS; experience with shadcn/ui is a plus.
• Experience modeling and querying relational data in PostgreSQL.
• Knowledge of authentication/authorization protocols (OAuth, JWT, OpenID Connect).
• Experience with AI-powered developer tools (Cursor, Claude Code, GitHub Copilot, etc.).
• Ability to translate Figma/Lovable UI designs into responsive, maintainable frontends.
• Strong collaboration skills, writing clean documentation and working in agile teams.
• Upper-Intermediate English and better.

Nice-to-Have

• Experience with Superset, DuckDB, or similar BI/querying tools.
• Knowledge of multi-tenancy patterns in SaaS applications.
• Familiarity with serverless architectures (AWS Lambda).
• Hands-on experience with AWS services (S3, ECS/Fargate, RDS, CloudFront, IAM, etc.).
• Familiarity with data formats (Parquet, JSON, CSV) and integrating with BI pipelines.
• Background in data visualization UX and designing dashboards for business users.
• Experience with observability (logging, tracing, metrics).

Responsibilities

• Design and implement scalable frontend ) and backend ) applications for the BI platform.
• Develop secure APIs to query BI data stored in AWS S3 (Parquet) and integrate with PostgreSQL.
• Build modern, interactive UI components leveraging React Server Components, Tailwind, and shadcn/ui.
• Collaborate with design tooling (e.g., Lovable) to quickly translate UI/UX prototypes into production-ready code.
• Implement authentication and authorization using OAuth2.0 / OpenID Connect.
• Model relational data in PostgreSQL and design performant queries for BI use cases.
• Create compelling 2D data visualizations with libraries such as Recharts, , or similar.
• Leverage AI-assisted developer tools (e.g., Cursor, Claude Code, Copilot) to accelerate development cycles.
• Ensure application security, performance, and scalability across the stack.
• Work closely with product managers and BI/data engineering teams to deliver customer-facing insights dashboards.
• Set up CI/CD pipelines, testing frameworks, and monitoring for production readiness.
• Provide input on architecture decisions, technical debt, and long-term scalability.

What We Offer

• Vacation (up to 20 working days)
• Paid sick leaves (10 working days)
• National Holidays as paid time off (11 days)
• Medical Insurance after 3 months probation period (can be used in Ukraine)
• Online English courses
• Accountant assistance and legal support
• Flexible working schedule, remote, office-based or hybrid format
• Fully-equipped perfect office space located in the city center (ready for work in blackouts)
• Direct cooperation with the customer
• Dynamic environment with low level of bureaucracy and great team spirit
• Communication with Top/Senior level specialists to strengthen your hard skills
• Online/offline teambuildings
• Volunteering culture development and support