Fullstack/Backend Engineer

Fullstack / Backend Engineer

About the Company

This is an early-stage, venture-backed B2B SaaS company operating at the intersection of construction technology and developer tooling. The team has built a unified API platform that gives software developers a single, consistent interface to read and write data across the fragmented ecosystem of construction management software. Think of it as the Plaid or Finicity for the construction industry — abstracting away the complexity of dozens of incompatible platforms so that product teams can focus on building rather than integrating.

With $3M in funding and a focused team of 11–50 people, this is a company where engineers have real ownership, architectural decisions matter, and the work directly shapes the product. The construction industry is a massive, underserved market and this platform sits at a critical layer of its emerging software stack.

What You'll Do

• Design, build, and maintain API integrations with third-party construction software platforms, handling authentication flows, data normalization, and edge-case mapping across inconsistent external schemas
• Contribute to the core unified API layer — the abstraction that translates platform-specific data models into a clean, developer-friendly interface
• Work across the stack as needed, including frontend surfaces such as developer dashboards, documentation tooling, or internal admin interfaces
• Write reliable, well-tested code that handles the realities of external API instability — rate limits, partial failures, schema drift, and inconsistent data quality
• Collaborate directly with founders and early customers to understand integration requirements and translate them into scalable technical solutions
• Participate in architectural discussions and help establish patterns and standards that the engineering team will build on as it grows
• Own features end-to-end — from scoping and design through deployment and monitoring

Ideal Background

• Demonstrated experience building and maintaining third-party API integrations, including working with REST and/or GraphQL APIs that are inconsistently documented or designed
• Strong backend engineering fundamentals — comfortable with data modeling, system design, and writing production-grade server-side code
• Experience working in a B2B SaaS or developer-tools context, with an appreciation for what it means to build a product where the end user is a software engineer
• Comfort operating with high autonomy and low process — this is an early-stage team where self-direction and good judgment matter as much as technical skill
• Pragmatic approach to software quality: you write tests where they count, make deliberate tradeoffs, and don't let perfect be the enemy of shipped

Preferred

• Prior experience at an API aggregation, middleware, or integration platform company (e.g., Plaid, Merge, Finch, Codat, or similar)
• Familiarity with the construction software ecosystem — platforms such as Procore, Autodesk Construction Cloud, Viewpoint, or others
• Experience designing developer-facing APIs with a focus on ergonomics, consistency, and clear documentation
• Background contributing to engineering culture and technical decision-making in a seed or early Series A environment