Remofirst1mo ago

Senior/Lead Back End Engineer

PolandRemoteFull-timesenior

EngineeringOtherBackend EngineeringBackend Developer

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Quick Summary

Overview

RemoFirst is transforming the way businesses hire and manage global teams. Our mission is to enable Freedom of Work by providing an all-in-one global HR platform that simplifies hiring, compliance, payroll, and benefits management.

Technical Tools

awsdjangofastapiflaskjavamysqlpostgresqlpythonspring-bootci-cdcode-reviewdistributed-systemsmicroservicesrest-apissystem-designtdd

RemoFirst is transforming the way businesses hire and manage global teams. Our mission is to enable Freedom of Work by providing an all-in-one global HR platform that simplifies hiring, compliance, payroll, and benefits management. We partner with some of the world’s most innovative companies, including Fortune 500 businesses and leading startups.

We are a small but strong team of 200+ people (and growing) hyper-focused on delivering a world-class platform and unparalleled service with our industry-leading partnerships.

We are looking for a Senior Back-End Engineer with strong experience in both Python and Java to help us maintain and improve our existing Python-based systems and support the design, build, and strategic transition of parts of our backend to Java. This is a hands-on role with strong technical ownership and exposure to global-scale systems. This role goes beyond simply implementing requirements - you’d be a real product engineer taking extreme ownership over the quality of your product, caring deeply about our customers and what’s being built. You will collaborate with international engineering, product, and design teams in a fully remote setup.

Design, develop, and maintain backend services using Python and Java.

Support and contribute to the gradual migration from Python-based services to Java, ensuring stability and continuityBuild and maintain RESTful APIs and backend integrations.

Participate in system design and architectural discussions, especially around service boundaries and migration strategy.

Work with distributed systems and microservices.

Integrate with third-party services and external APIs.

Write clean, well-tested, and maintainable code following best practices.

Participate in code reviews, technical discussions, and knowledge sharing.

Debug production issues and improve system reliability, observability, and performance.

Collaborate effectively with cross-functional teams across time zones.

5+ years of backend software development experience

Strong professional experience with Python (Django, FastAPI, Flask, or similar frameworks)

Strong professional experience with Java, preferably using Spring Boot.

Solid understanding of object-oriented design, SOLID principles, and design patterns

Experience designing and consuming RESTful APIs

Experience with relational databases (PostgreSQL, MySQL); exposure to NoSQL databases is a plus

Familiarity with unit testing, integration testing, and test-driven development (TDD)

Experience with CI/CD pipelines, Git, and modern development workflows

Understanding of microservices architecture and distributed systems

Experience working with cloud platforms (AWS preferred)

Strong problem-solving skills and attention to performance and scalability

Excellent written and verbal communication skills in English

Fully remote role

Opportunity to work on global-scale systems and products

Exposure to international teams and modern engineering practices

High ownership and autonomy in a fast-growing startup environment

A strong culture grounded in speed, ownership, trust, transparency, customer obsession, and excellence.

Real problems, global impact, and the chance to help redefine how the world works.

Location & Eligibility

Where is the job

Poland

Remote within one country

Who can apply

Listed under

Poland

Listing Details

Posted: April 9, 2026
First seen: April 9, 2026
Last seen: June 4, 2026

Posting Health

Days active: 55
Repost count: 0
Trust Level: 32%
Scored at: June 4, 2026

Signal breakdown

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Remofirst

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RemoFirst is a leading Employer of Record solution that streamlines international hiring, payroll, and compliance for businesses in over 180 countries.

Employees

125

Founded

2021

Domain

Jobs

External application · ~5 min on Remofirst's site

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