Senior Software Engineer

Swish Labs; New York (NY); Hybrid; USD 160,000 - 200,000; Full time

Job summary

Swish Labs, a NY-based hybrid fintech startup, seeks a backend engineer to design and maintain core services moving a loan from application to funding. You’ll collaborate with product and design, write clean, testable Go code, review peers, and drive reliability and technical direction.

You will own APIs and integrations with credit, verification, document, and pricing providers, plus build the automation layer that translates model output into auditable decisions for lenders and regulators.

Qualifications

• 6+ years building production software with ownership of critical systems.
• Strong backend experience designing APIs, working with relational databases, and reasoning about scale and failure.
• Experience with cloud infrastructure and containerized deployment.
• Care for correctness and auditability; be able to show what happened and why.
• Mortgage, lending, fintech, or regulated-domain experience is a strong plus.
• A computer science degree is not required.

Responsibilities

• Design, build, and maintain the core backend services that move a loan from application through underwriting to funding.
• Work directly with product and design; write clean and testable code; review others' work.
• Improve reliability and help set technical direction; mentor engineers who join after you.
• Develop APIs and integrations with credit, verification, document, and pricing providers.
• Build the automation layer that turns model output into decisions lenders can trust and explain.
• Focus on performance, reliability, and tooling that keeps production honest.

Skills

Backend development

API design

Relational databases

Cloud infrastructure

Containerization

Communication

Tools

Go

PostgreSQL

Docker

Kubernetes

Job description

New York, NY. Hybrid. Compensation: $160,000-$200,000 OTE.

About Swish Labs

Swish Labs is an AI-native mortgage platform focused on making home lending faster, more transparent, and more trustworthy for homeowners and lenders. We replace fragmented software and manual workflows with intelligent automation and a unified system that modernizes mortgage origination.

We're a small team. Engineers here own real pieces of the product and make decisions that shape it.

The role

You'll design, build, and maintain the core backend services that move a loan from application through underwriting to funding. You'll work directly with product and design, write clean and testable code, review others' work, improve reliability, help set technical direction, and mentor the engineers who join after you.

What you'll work on

• Backend services in Go that handle high-volume, data-intensive loan workflows
• APIs and integrations with credit, verification, document, and pricing providers
• The automation layer that turns model output into decisions lenders and regulators can trust and explain
• Performance, reliability, and the tooling that keeps production honest

What we're looking for

• 6+ years building production software, with real ownership of systems that mattered
• Strong backend experience designing APIs, working with relational databases, and reasoning about scale and failure
• Experience with cloud infrastructure and containerized deployment
• Care for correctness and auditability you can show what happened and why
• Good judgment, clear communication, and the willingness to say when something is a bad idea
• Mortgage, lending, fintech, or regulated-domain experience is a strong plus

A computer science degree is not required.

Interview process

Intro call, a technical conversation about something you've built, a working session with the team, and a conversation with the founders.

Questions are welcome at [e-mail].