Backend Software Engineer

Quick Facts

• Salary: 950–1100 PLN/day net + VAT (B2B)

• Work model: Hybrid (1 day/week from the Gdańsk office)

• Team/Project: Agile team working on customer-facing tracking products

Description

Join a mature, self-organized agile team building customer-facing tracking products. The project consolidates tracking channels into a single customer entry point, adds new customer notifications, and scales event-driven APIs.

Responsibilities

• Develop and maintain back-end services and APIs on AWS

• Build serverless and event-driven features using Lambda, SQS, and EventBridge

• Write clean, tested, maintainable code and participate in code reviews

• Collaborate with product owners, front-end developers, and architects to deliver features end-to-end

• Monitor, troubleshoot, and improve production services

Requirements

• 3+ years of back-end development with Python or Scala

• 2–3+ years of hands-on AWS experience including Lambda, API Gateway, SQS, SNS, EventBridge (including Pipes), DynamoDB, and S3

• Practical experience with relational (PostgreSQL) and NoSQL databases (e.g., DynamoDB), including data modeling and query optimization

• Experience designing and developing RESTful APIs

• Knowledge of good coding practices: unit/integration testing, code reviews, and Git

• Experience with Infrastructure as Code, especially CloudFormation

• Strong communication skills and ability to work independently and in a team

• Proficiency in written and spoken English

Benefits

• Flexible work organization

• International environment with daily English usage

• Regular integration meetings