Contribute to the transition from Python to Java while maintaining back-end services, ensuring product quality and addressing global-scale system challenges in a fully remote setting.
RemoFirst is unlocking global hiring so companies can build exceptional teams from anywhere.
Our mission is to become the most affordable and accessible global HR platform for more than 400 million businesses. We handle hiring, onboarding, payroll, compliance, and talent management across borders so companies can focus on building, not bureaucracy.
We are scaling at incredible speed and transforming one of the fastest-growing industries in the world. To fuel this momentum, 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.
What You Will Do:
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.
What You Bring:
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
Why Remofirst:
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.
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