Senior Software Engineer

We are looking for a Senior Software Engineer, Backend with experience building and operating high-stakes, transaction-heavy systems. You will work across payment infrastructure and platform services, where your engineering decisions will directly impact the reliability and correctness of merchant money flows

Responsibilities:

• Design and build backend services for payment infrastructure, including idempotency, retry queues, reconciliation flows, and crash-safe state management.
• Own systems in production, monitor services, respond to incidents, and continuously improve reliability.
• Partner with product and business stakeholders to translate requirements into well-scoped engineering solutions and drive projects from design through production.
• Contribute to shared platform services used across the organisation.
• Drive system design reviews and help raise the overall engineering bar.
• Proactively identify complex engineering challenges such as race conditions, ordering guarantees, and blast-radius risks before they reach production.
• Instrument services for observability and own alerting for the systems you build.
• Communicate technical risks, trade-offs, and timelines clearly with both technical and non-technical stakeholders.
• Use AI tools to accelerate development while critically validating and taking ownership of the output.
• Mentor engineers and build reusable engineering patterns that improve the team's overall productivity.

Requirements:

• 4-6+ years of professional backend software engineering experience.
• Bachelor's degree in Computer Science, Engineering, or a related technical field.
• Strong proficiency in Java with Spring Boot or equivalent JVM-based backend frameworks.
• Strong understanding of system design fundamentals, including: Distributed transactions, Idempotency, Event-driven architecture, Caching, Fault tolerance.
• Hands-on experience working with relational databases and message queues in production.
• Working knowledge of cloud infrastructure, preferably AWS.
• Experience with container-based deployments.
• Ability to instrument services and own observability and alerting.
• Excellent written and verbal communication skills, with the ability to clearly articulate technical trade-offs and risks.

Strong Signals:

Candidates with the following experience will stand out:

• Experience in FinTech, payments, or transaction-heavy platforms, particularly where correctness is critical.
• Experience designing idempotency, retry mechanisms, and reconciliation flows from scratch.
• Evidence of proactive engineering thinking through: Design documents, RFCs, Post-mortems, Open-source contributions.