Middle Backend Developer (Node.js)

Poland·WrocławRemoteFull-Timemid

EngineeringBackend Developer

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Overview

We are looking for a skillful Backend Developer to join one of our teams working with US clients - referrals from the high-end American IT market. Our tech stack is built around React, Node.

Technical Tools

EngineeringBackend Developer

We are looking for a skillful Backend Developer to join one of our teams working with US clients - referrals from the high-end American IT market.

Our tech stack is built around React, Node.js and TypeScript. We are working with well-established companies and sometimes startups in their early stages (MVPs), which makes the job full of diversity and exciting challenges while crafting cutting-edge solutions.

Enjoy the flexibility of working within the Polish time zone and collaborate with clients from diverse industries such as FinTech, SportsTech, MedTech, and many others.

Salary: PLN 10.000 - 18.000 + VAT (B2B)

Required skills: 2+ years of commercial experience in Node.js, SQL and NoSQL DBs, knowledge of JS frameworks (e.g Express.js, NestJS), experience in TypeScript, SOLID and KISS, knowledge about design and architecture patterns, knows how and why Docker and GitHub Actions works, basic usage of AWS services, English B2, Polish C1

Offer: B2B/UZL, paid days off, 100% remote (or hybrid/onsite - as you prefer), Polish time zone, flexible hours, full-time position, long-term contract, Scrum Teams

Perks and Benefits: learning budget, budget for health insurance and sports, regular feedback, support, and real learning opportunities, access to internal Design Talks and Tech Talks, and more

Tools you'll use: Apple MacBook Pro, Slack, GSuite, GitHub, Jira, Coda, FigJam, Claude Code

Writing readable, testable and easy-to-maintain JS/TS code with OOP flavor

Taking ownership of backend features from understanding requirements through implementation, testing and deployment

Writing documentation for delivered code and technical decisions

Code review of other developers in the team, including constructive feedback and knowledge sharing

Direct involvement with the design and modification of basic DB structures and API contracts

Propose pragmatic improvements and proactive ideas/solutions to enhance the product and team’s work processes

Share insights with the team to diagnose issues, communicate risks and focus on solutions

Actively participate in project discussions, refinements and technical decision-making

Listen to the client's needs and, after consulting the team, suggest practical solutions

Support less experienced team members through code review, explanations and pair programming
Use AI tools responsibly in daily work, verifying and adapting results to production standards

2+ years of commercial experience in Node.js

Good experience with at least one Node.js backend framework (e.g. Express.js, NestJS, Fastify, etc) - you know most of its basic APIs/features, worked on at least 1-2 projects involving such technologies

Strong proficiency in TypeScript. You have practical experience with static typing, advanced types, and configuring TS compilers, treating it as your primary language to build robust and type-safe backend applications

Potentially worked with NoSQL databases and/or in-memory databases and utilized them as a data store

Worked with SQL databases (integration-wise and as a basic design skill) with ORM or query builder tool (ie. Prisma, Knex)

Understands how AI/LLMs work in practice (context, prompts, limitations) and has hands-on experience contributing to AI-powered backend features (e.g. integrating LLM APIs, basic RAG flows, or simple agent-style workflows)

Integrates AI seamlessly into daily development workflow - uses it for prototyping, boilerplate, and tests, while always verifying and adapting output to production-quality standards

English level B2 to cooperate with American clients

Polish level C1 to communicate easily within the team

Open-minded to new challenges (e.g. different frameworks)

Understand the significance of MVP and prioritize the pursuit of excellence and high-quality outcomes, even amid tight project timelines.

Communicate with the team to efficiently translate business complexities (user stories/tasks) into solutions (results/estimations)

Staying on top with trends/news, sharing them, teaching others and aiming for the best quality solutions

Strong problem-solving abilities to diagnose issues, suggest solutions, and make decisions based on project requirements.

Worked in Agile/Scrum on a daily basis consisting of people with similar skills and monitoring code quality on a daily basis

Basic experience with AWS - used some services in specific cases

Basic experience with Docker - know how to prepare and debug the environment and connect things up to work locally

Worked in the very beginning of the product development/creation stage

Understand the significance of MVP and aim to deliver top-notch results, even amid tight project timelines