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Full-Stack / Backend Engineer - Construction Technology Infrastructure

Nxt Level San Francisco Bay Area
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AI Summary

Build the financial infrastructure layer for the $12T global construction industry by unifying fragmented systems behind a clean API and data model. Engineer scalable backend systems handling millions of daily API requests while improving performance, reliability, and observability. Work directly with customers and founders to ship production code in a profitable, well-funded startup environment.

Key Highlights
Unify fragmented construction systems behind a single API and data model
Scale a platform handling millions of API requests per day with high reliability
Work in a profitable, cash-flow positive startup with $20M+ funding and strong backing
Key Responsibilities
Unify dozens of fragmented construction systems behind one clean API and data model
Build integrations with legacy and on-prem systems that may have limited APIs or documentation
Scale a platform handling millions of API requests per day
Improve performance, caching, reliability, testing, and observability
Build customer-facing products that run on top of the company’s own APIs
Ship production code quickly and work directly with customers and founders
Technical Skills Required
TypeScript PostgreSQL Amazon Web Services
Benefits & Perks
Profitable and cash-flow positive
Backed by Accel and Y Combinator
Relocation and visa sponsorship available

Job Description


Full-Stack / Backend Engineer — Construction Technology


The Opportunity


Our client is building the financial infrastructure layer for construction, a $12T global industry still powered by fragmented, legacy software.


Fresh off a $15M Series A led by Accel, with $20M+ in total funding, the company is profitable, cash-flow positive, and serving 550+ customers.


They’re hiring a high-ownership Full-Stack / Backend Engineer who enjoys simplifying complex systems, building 0→1 products, and solving hard infrastructure problems.


What You’ll Work On

  • Unify dozens of fragmented construction systems behind one clean API and data model
  • Build integrations with legacy and on-prem systems that may have limited APIs or documentation
  • Scale a platform handling millions of API requests per day
  • Improve performance, caching, reliability, testing, and observability
  • Build customer-facing products that run on top of the company’s own APIs
  • Ship production code quickly and work directly with customers and founders


What We’re Looking For

  • Roughly 1–10 years of software engineering experience
  • Strong backend or full-stack engineering ability
  • Familiarity with cloud infrastructure such as AWS
  • Strong systems thinking and comfort with ambiguity
  • High ownership, low ego, and a bias toward shipping
  • Exceptional new grads with strong internships, co-ops, or projects may be considered


Prior experience with construction tech, B2B SaaS, APIs, or the exact stack is not required.


Tech Stack

TypeScript, React, PostgreSQL, Redis, AWS, CDK, EC2


Location

  • Bay Area: In-office in San Francisco 5 days/week
  • Outside Bay Area: Remote available for exceptional candidates
  • Relocation and visa sponsorship available


Why Join?


You get the ownership and upside of an early-stage startup with much less early-stage risk:

  • 550+ customers
  • Profitable and cash-flow positive
  • $20M+ raised
  • Backed by Accel and Y Combinator
  • Massive, underserved market
  • Small, highly technical team
  • Direct access to experienced founders


This is a strong fit for an engineer who wants to solve durable technical problems, simplify messy systems, and help build a category-defining company.


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