About the role

Backend Engineer solving technical and payment-related problems using Kotlin at Fiat Republic. Collaborating with cross-functional teams to ensure precise alignment on feature requirements.

Responsibilities

Solve challenging technical and payment-related problems by translating product objectives into clear, performant backend architecture and designs using Kotlin
Collaborate closely with Product, Delivery, and Engineering teams to ensure precise alignment on requirements, scope, and timelines for major feature rollouts
Continually optimize services for performance, latency, and reliability, while improving engineering standards, tooling, and processes across the team
Debug, troubleshoot, and resolve critical production issues across various services and multiple levels of the stack with a strong sense of urgency and ownership
Proactively define and document technical requirements and architectural designs in JIRA, ensuring clear communication with both technical and non-technical stakeholders.

Expert proficiency in writing server-side Kotlin code for building highly scalable, performant, and reliable microservices
Similar experience in Java or Scala will also be considered
Demonstrated experience designing and building scalable Cloud infrastructure capable of reliably handling millions of transactions per month (TPS) using Kubernetes
Strong background in relational databases (e.g., PostgreSQL) and experience modeling complex data schemas for financial and transactional systems
Proven ability to identify, define, and document robust, secure, and well-structured internal and external REST/gRPC APIs
Experience with Kafka or other message broker systems is preferred, though not required
Knowledge and hands-on experience with various architecture patterns such as Event Sourcing, CQRS (Command Query Responsibility Segregation), CDC (Change Data Capture), Transactional Outbox and others
Experience with banking (especially realtime payments) and financial services is a strong preference, though not mandatory
Deep experience with Git and GitHub/GitLab, including standard branching models and collaborative code review processes
Rigorous approach to writing maintainable, well-documented code, including advanced unit and integration testing to ensure superior code quality
Must demonstrate a strong sense of ownership, a customer-first mindset, and commitment to superior code quality and engineering excellence.

Meaningful stock options in a rapidly growing company alongside a very competitive salary
Opportunity to get in on the ground floor of a 1st-to-market, fast-growing regulated fintech backed by tier-1 VCs, working with an incredible team of payment experts
Empowerment to take ownership at all levels and make high-impact decisions
Fun, collaborative and meritocratic culture with zero tolerance for politics
Work in a truly multi-national team (offices in Toronto, London, Amsterdam and Krakow, with more coming soon).
Hybrid working conditions - minimum 1 day per week from the office where the role is based
Also the option to work from any of our other hubs for up to 6 weeks.
Company retreats to celebrate successes and spend time together in person