Fullstack Developer - Typescript/Node.js

Full-stack Developer (TypeScript / Node.js) – 100% Remote (Poland)

Optiveum is looking for experienced Full-stack Developers to join a long-term project delivered for a fast-growing, international technology company building AI-driven automation solutions for finance and accounting processes.

UWAGA: Wymagana jest dobra znajomość języka polskiego

✅ What’s offered

• B2B cooperation with Optiveum (Poland-based IT recruitment & outsourcing company)

• Long-term project (03.2026 – 03.2027, with extension potential)

• 100% remote work from Poland

• Stable collaboration with a global enterprise client

• On-time invoice payments

• Rate: up to 120 PLN/h (B2B)

Your role

• Develop full-stack features (React.js / Vite + Node.js / Express.js)

• Build and optimize data processing pipelines (including AI/automation workflows)

• Integrate with ERP/accounting systems

• Participate in architecture discussions, code reviews, and sprint planning

Must-have skills

• 3+ years of experience with TypeScript, Node.js, Express.js

• Experience with cloud environments (AWS, GCP, Kubernetes)

• Strong knowledge of REST APIs, RabbitMQ, PostgreSQL, MongoDB

• Understanding of distributed systems, OOP & FP principles (KISS, DRY)

• Ability to write clean, maintainable code and test your solutions

• Fluent Polish & English

Nice to have

• Experience with AI / LLM integrations

• Knowledge of ERP or accounting systems

• Experience with React, Zustand, SCSS

• Familiarity with Grafana / Datadog

Recruitment process

• Home assignment

• Technical interview (for selected candidates):

• Code review (30 min)

• Technical questions (30 min)

• Live coding (30 min)