Senior Software Engineer
REALMAbout the role
Senior/Staff Backend Engineer | AI Fintech | $170k-$240k + Equity | SF or NYC
We're hiring on behalf of a well-funded Series A fintech building AI-powered infrastructure for financial institutions. The platform helps banks and credit unions modernise how they handle complex, high-volume operational workflows - replacing fragmented legacy tools with a single intelligent system.
They've seen strong early traction with real enterprise customers and are scaling the engineering team to match.
What you'll be doing:
Building and maintaining reliable backend systems that integrate with credit card networks, banking platforms, and merchants
Scaling core platform services to support a growing and diverse customer base
Designing microservices architecture and core libraries that other engineers build on
Owning end-to-end delivery of key features - from tech stack decisions through to deployment
Mentoring engineers and leading projects as the technical owner
What they're looking for:
6+ years in software engineering, with at least 2 years using Go or Java in production
Experience on platform teams with meaningful contributions to system architecture
Comfortable working with AI workflows
Strong fundamentals: algorithms, data structures, distributed systems design
Clear communicator who can lead a team and work cross-functionally
Compensation: $170,000 - $240,000 base + equity
Location: Hybrid - SF or NYC (3 days/week in office)
Responsibilities
- Building and maintaining reliable backend systems that integrate with credit card networks, banking platforms, and merchants
- Scaling core platform services to support a growing and diverse customer base
- Designing microservices architecture and core libraries that other engineers build on
- Owning end-to-end delivery of key features - from tech stack decisions through to deployment
- Mentoring engineers and leading projects as the technical owner
Qualifications
- 6+ years in software engineering, with at least 2 years using Go or Java in production
- Experience on platform teams with meaningful contributions to system architecture
- Comfortable working with AI workflows
- Strong fundamentals: algorithms, data structures, distributed systems design
- Clear communicator who can lead a team and work cross-functionally
Benefits
- Equity
Skills mentioned
About REALM
REALM is a hyper-specialised search firm built for the companies redefining cloud, compute and decentralised infrastructure. We are embedded in the ecosystems we recruit into with deep technical fluency across Cloud & Compute (CNCF, Neocloud, Hyperscalers, GPU and AI infrastructure) and Blockchain (DeFi, Web3, crypto infrastructure). From GPU cluster engineers and SREs running production AI infrastructure, to protocol engineers building the rails of on-chain finance. 40+ countries. 750+ critical hires. Trusted by the teams building the frontier.