Backend Software Engineer - Senior Specialist

Now, the focus has moved even further, aiming to shape the future of money.

We're a movement empowering millions of people, driven by a shared purpose to tackle big challenges. As a Senior Backend Software Engineer in the Business Team , you’ll play a critical role in shaping the future of digital welfare payments – handling everything from employer benefits to complex products. You will be responsible for the technical direction, quality, and delivery of complex systems, impacting multiple services across teams that empower thousands of employers to manage their corporate welfare effectively. Conduct technical analysis for medium‑to‑large projects impacting multiple services for the Employer domain. Ensure technical quality: You will implement robust testing strategies, balancing automation and manual coverage, and oversee gradual rollouts with careful monitoring to ensure that welfare distributions are always precise and reliable.

You’ll tackle the unique challenges of B2B registration flows and high‑volume benefit allocations while ensuring code quality through active review.

Mentor and provide technical guidance to junior and mid‑level engineers, actively contributing to their skill development and ensuring high‑quality engineering practices across the team.

Our tech stack includes (but it’s not limited to) PostgreSQL, Java, Spring Boot . We rely on AWS for our infrastructure, with microservices deployed on EC2/ECS, S3 for storage, AWS Lambda for serverless functions, and Kinesis and ElasticSearch for log streaming. We need a proven problem‑solver who takes initiative, excels in cross‑team collaboration, and is a technical quality champion. Does it sound like you?

You have at least 5 years of related experience in back‑end software engineering, with a proven track record of working with microservices, cloud environments, and Agile methodologies.

You have deep experience working with Java and a strong understanding of cloud platforms (AWS is a plus).

You have a proven ability to conduct technical analysis for large‑scope projects affecting multiple systems, drive knowledge sharing, and mentor peers.

You take pride in writing and maintaining reliable technical documentation and leading structured technical analyses with the team. Whether it’s an architectural deep‑dive or a cross‑departmental sync, you ensure that complex technical decisions are clearly documented, easily understood, and followed through to execution.

Passion and language skills: You are passionate about FinTech or startup environments and fluent in English.

Flexible hybrid working system

Language classes with Preply

Internal workshops & training

International relocation support

Flexible Benefit budget

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