Software Engineer

NxT Level; San Francisco (CA); On-site; USD 120,000 - 190,000; Full time

Job summary

NxT Level in the Bay Area seeks a Full-Stack / Backend Engineer to unify fragmented construction systems behind a single API and data model. You’ll build integrations with legacy systems and scale a platform handling millions of API requests daily.

We value candidates with strong backend or full-stack skills, experience with TypeScript, React, PostgreSQL, Redis, AWS, CDK, and modern cloud infrastructure, and a willingness to ship quickly while collaborating closely with customers and founders.

Qualifications

• 1–10 years of software engineering experience.
• Strong backend or full-stack capability.
• 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.

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.

Skills

Systems thinking

Ownership mindset

Ambiguity tolerance

Tools

TypeScript

React

PostgreSQL

Redis

AWS

CDK

EC2

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.