Full-Stack Software Engineer (SWE)

Job Description

Job Description

San Francisco, CA · On-site (5 days/week) · Full-time
Compensation: $130,000–$240,000 + equity

About the Company

We're a profitable, fast-growing data infrastructure platform serving the construction industry — one of the largest and least-digitized sectors in the world. We have 550+ paying customers on multi-year contracts, have been profitable and cash-flow positive for over two years, and are growing 10% month over month. Our product is a layered platform spanning data connectivity through fully automated financial workflows.

Founded 2021 · ~36 people · Industry: Property Tech / Construction data infrastructure

The Role

We're hiring full-stack/backend engineers who love simplifying complex systems, unifying fragmented data, and building large-scale infrastructure. You'll be hands-on with core backend systems syncing financial data across fragmented legacy software in real time (work is roughly 80–90% backend). You'll own features end-to-end as an IC on a flat engineering team, talk directly to customers, and ship daily based on real feedback.

What you'll be doing

• Build and maintain the unified API layer connecting construction ERPs to modern software (legacy SQL, DLL, and API-based systems from 20–40 years ago)
• Ship core backend systems for ERP sync, AP automation, expense management, and vendor management, with frontend work on apps that dog-food the API
• Solve real-time data sync challenges, including web-socket implementations for systems lacking native webhooks
• Build scalable testing frameworks to catch edge cases across 1,000+ endpoints
• Engage directly with customers and ship features daily based on real feedback

Tech stack: Not explicitly specified. Referenced technologies: AWS (cloud, preferred), SQL/DLL/API-based legacy systems, web-sockets, high-volume API infrastructure.

Requirements

• 1-5 years backend or full-stack engineering
• CS degree from top 20-30 school
• Cloud infrastructure: AWS preferred
• Startup or founding engineering experience
• High-ownership, low-ego operator

Green Flags

• Startup or founding engineering experience at pre-Seed through Series C. Demonstrates ability to ship in ambiguity and learn the chaotic pace the company operates at.
• Top 20-30 school CS background, especially UWaterloo
• Serious athlete background (college or high school competitive sport). Strong correlation with discipline, time management, and high output.
• Multi-year tenure at a previous role. Signals follow-through and depth, not job-hopping.
• High GPA, meaningful academic awards, competitive extracurriculars (debate, etc.). Reliable signal for engineering rigor.

Red Flags

• Construction tech background on the SWE side. The hiring manager, direct: "We want to avoid software engineers with construction backgrounds because we're looking for the best software engineers and they're probably not with a construction background." Hard exclude for SWE specifically.
• Big tech only (FAANG without startup tenure). Acceptable only if junior with 2 years or less of big-tech time.
• Laid off from last role for performance reasons. Hard exclude.
• Currently in-between roles. Hard exclude.
• Preference for work-life balance, work on trendy tech (LLMs, crypto), mobile, embedded, or front-end. Hard mismatch with the company's culture and core backend focus.
• Not looking for new grads

Why Join

• Profitable and cash-flow positive — a durable business, not a pre-revenue bet
• End-to-end ownership on a flat team with no traditional manager layer; direct customer contact
• Genuinely hard backend problems: unifying hundreds of fragmented legacy systems under one API, real-time sync, millions of API requests/day, testing across 1,000+ endpoints

Details Location San Francisco, CA Work policy In-person 5 days/week; remote only for exceptional candidates outside the Bay Area Compensation $130,000–$240,000 + equity Visa sponsorship None available Employment type Full-time