Senior Software Engineer

Are you curious, motivated, and forward‑thinking?

At FIS, you’ll work on some of the most complex and impactful challenges in modern banking, helping build next‑generation, AI‑enabled platforms used by financial institutions worldwide. We foster an environment that values ownership, autonomy, and end‑to‑end responsibility, where engineers are encouraged to take initiative, make meaningful technical decisions, and ship solutions directly into production. We believe in open, collaborative, and ownership‑driven teams with a strong focus on real‑world impact.

About the team:

You will build the core financial engines of an autonomous banking platform — ledgers, transaction processors and reconciliation systems that move and record value at global scale.

What you will be doing:

• Design and implement deterministic, event‑sourced ledger and transaction engines
• Build high‑precision interest, pricing and reconciliation engines
• Engineer distributed systems focusing on correctness, consistency and invariants
• Design for scale: concurrency, throughput, partitioning and replication
• Own services end‑to‑end from design through production operations
• Integrate AI tooling into development, debugging and operational workflows

What you bring:

• Strong proficiency in Go or Rust
• Kafka and distributed SQL database experience
• Experience building distributed systems and event‑driven architectures
• Deep understanding of concurrency, consistency and fault tolerance
• Hands‑on production ownership and strong debugging skills
• Comfort working in banking or other highly regulated environments

Added bonus if you have:

• Formal methods or strong testing discipline
• AI‑native development workflows
• Experience with financial systems or ledgers

What we offer you:

• A work environment built on collaboration, flexibility and respect
• Competitive salary and attractive range of benefits designed to help support your lifestyle and wellbeing
• Varied and challenging work to help you grow your technical skillset

Privacy Statement

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Sourcing Model

Recruitment at FIS works primarily on a direct sourcing model; a relatively small portion of our hiring is through recruitment agencies. FIS does not accept resumes from recruitment agencies which are not on the preferred supplier list and is not responsible for any related fees for resumes submitted to job postings, our employees, or any other part of our company.

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