Startups

loopfour

Full Stack Software Engineer

Applications are paused. We're not reviewing new applications right now. Roles stay listed so you know what's coming — join the list below and we'll email you when they reopen. Engineering Full time Full Stack Software Engineer Competitive + Equity 0.01% - 2.00% equity Remote Build the workflow engine and product surfaces finance teams rely on every day.

Applications paused

About the role

You'll work across our TypeScript stack — the workflow builder, the durable runtime that executes those workflows, and the integrations that connect them to the tools finance teams already use. This is a high-agency role. You architect solutions, ship features to production, and shape product direction directly. Expect to touch real systems that move real money and to feel the impact of what you build. We want someone who enjoys hard problems, moves fast without breaking trust, and cares about the people on the other side of the screen.

What you'll do

Design, build, and maintain scalable features across the workflow builder, API, and durable runtime Build and integrate APIs for financial data processing and automation Collaborate with cross-functional teams to implement new features and improvements Work with AI/ML models to enhance automation capabilities Turn messy real-world finance processes into clean, reliable automated workflows Own performance, correctness, and observability of the systems you ship Write clean, maintainable, well-tested code and participate in code reviews Debug and resolve complex technical issues across the full stack What we're looking for 3+ years building and shipping full-stack web applications Proficiency in TypeScript, React, and Node.js Experience with databases (PostgreSQL, MongoDB) and cloud platforms (AWS, GCP) Knowledge of RESTful APIs, GraphQL, and microservices architecture Familiarity with containerization (Docker) and CI/CD pipelines Experience with AI/ML integration and data processing preferred Fintech or financial systems experience is a plus Bachelor's degree in Computer Science or equivalent experience What you'll work with

Frontend

React, Next.js, TypeScript, Tailwind CSS

Backend

Node.js, Python, Express, FastAPI

Database

PostgreSQL, MongoDB, Redis

AI

TensorFlow, PyTorch, OpenAI APIs

Infra

AWS, Docker, Kubernetes, Vercel

Tooling

Git, GitHub Actions, DataDog

Interested in this role

Applications are not open right now. Join the list and we'll email you when they reopen. See all roles

Sourced 2026-09-29