Senior Software Engineer, Full-Stack

About the role

Till is a banking platform designed specifically for families. It includes debit cards, accounts, and tools aimed at helping parents raise financially capable children. The platform is part of Western & Southern Financial Group, a Fortune 500 company with over $132 billion in assets under management.

Responsibilities

• Own medium-to-large features from technical design through production - across backend services, APIs, and consumer-facing web and mobile surfaces.
• Lead technical design discussions and architecture reviews. Inform higher-level decisions about how our systems evolve as we scale with new institutional backing.
• Ship money movement and payments features that have to be correct the first time - and stay correct under load, across multiple banking partners and rails.
• Work within the constraints of real financial software: compliance, auditability, idempotency, and zero-tolerance for data loss.
• Contribute to ledger design and transaction reconciliation as we scale to a larger combined user base.
• Carry full production responsibility: on-call rotation, performance and cost work, and the testing rigor (unit, integration, contract) that financial software requires.
• Translate ambiguous product requirements into clear technical scope and shippable plans. Push back when scope or timeline doesn’t add up.
• Mentor other engineers in code review and design review. Raise the bar without being precious about it.

Requirements

• At least 5 years of production Go experience
• You’ve shipped and operated Go services - not just read the tour.
• Experience with idiomatic Go patterns: interfaces, goroutines, context propagation, error handling.
• Strong React + TypeScript on the web.
• You’ve shipped a consumer mobile app to production (React Native or native). React Native is learnable on the job.
• Experience owning medium-to-large features end-to-end, with working knowledge of the systems your code touches beyond your own service.
• Experience building in hexagonal, onion, or comparable layered architectures.
• A track record of partnering closely with product, design, and business stakeholders - especially turning fuzzy requirements into something you can actually build.
• You’ve operated under the constraints of money movement before. Specific payments rails experience is not required.

Nice to have

• ACH, card processing, banking integrations (Galileo, Marqeta, or similar), or ledger design
• AWS experience - we run on Lambda, RDS, SQS, CDK for IaC.
• Familiarity with family fintech, kids’ financial products, or consumer apps targeting underserved demographics.
• Experience in a small, senior engineering org where the line between IC and tech lead is thin.

Our Stack

• Small team, high trust. Engineers own outcomes, not tickets. You’ll have direct and active relationships with the product team.
• We move fast but we don’t cut corners in payments. Financial correctness is a non-negotiable constraint, not a nice-to-have.
• Greenfield work alongside a legacy codebase. You’ll navigate both - and help us migrate intelligently.
• Post-acquisition growth phase. Expect ambitious product investment, fast decisions, and the opportunity to shape how Till scales with institutional backing behind it.

Compensation & Benefits

• Base salary range: $150,000 - $200,000 USD, depending on experience and location.
• Annual bonus based on experience
• Health, dental, and vision coverage
• HSA with company contribution
• Parental leave
• Flexible time off
• Remote-first - NYC preferred for occasional in-person collaboration

Logistics

Till is an equal opportunity employer. We’re building a team that reflects the families we serve and welcome candidates from all backgrounds, identities, and experiences.