Senior Software Engineer, Full-Stack
About The Position
Till is a banking platform built for families, offering debit cards, accounts, and tools to help parents raise financially capable kids. Recently acquired by Western & Southern Financial Group, a Fortune 500 company, Till has the capital and long-term backing to grow into a category leader while preserving its lean, senior engineering culture. The engineering team is small, allowing individual contributions to directly shape the product, with the stability of a large parent company. The engineering organization is senior, deliberately small, and focused on individuals who can ship across the stack and own outcomes end-to-end. This role offers a chance to join a mission-driven fintech at an inflection point, with significant ownership and impact from day one. The first 3-6 months will involve greenfield development, where the engineer will own medium-to-large projects end-to-end, including technical design, implementation across Go backend and React/React Native frontends, deployment, and post-deployment challenges. The codebase utilizes hexagonal/onion architecture, and familiarity with such patterns is expected.
Requirements
- At least 5 years of production Go experience.
- Shipped and operated Go services.
- Experience with idiomatic Go patterns: interfaces, goroutines, context propagation, error handling.
- Strong React + TypeScript experience on the web.
- Shipped a consumer mobile app to production (React Native or native).
- Experience owning medium-to-large features end-to-end, with working knowledge of related systems.
- Experience building in hexagonal, onion, or comparable layered architectures.
- Track record of partnering closely with product, design, and business stakeholders to build features from fuzzy requirements.
- Experience operating under the constraints of money movement.
Nice To Haves
- ACH, card processing, banking integrations (Galileo, Marqeta, or similar), or ledger design.
- AWS experience (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 organization where the line between IC and tech lead is thin.
Responsibilities
- Own medium-to-large features from technical design through production, spanning backend services, APIs, and consumer-facing web and mobile surfaces.
- Lead technical design discussions and architecture reviews, influencing higher-level decisions on system evolution for scalability.
- Ship money movement and payments features that require accuracy and reliability under load, across multiple banking partners and rails.
- Work within the constraints of financial software, including compliance, auditability, idempotency, and zero-tolerance for data loss.
- Contribute to ledger design and transaction reconciliation for a growing user base.
- Carry full production responsibility, including on-call rotation, performance and cost optimization, and rigorous testing (unit, integration, contract).
- Translate ambiguous product requirements into clear technical scope and shippable plans, pushing back when necessary.
- Mentor other engineers through code and design reviews, raising the technical bar.
Benefits
- Health, dental, and vision coverage
- HSA with company contribution
- Parental leave
- Flexible time off
Stand Out From the Crowd
Upload your resume and get instant feedback on how well it matches this job.
What This Job Offers
Job Type
Full-time
Career Level
Senior
Education Level
No Education Listed
