Senior Back End Software Developer

CoLab Software

11h•Remote

About The Position

We’re hiring a Senior Back End Developer to join our Build Viewing team—focused on a new product offering with a heavy data component at its core. You’ll be the sole back end developer on this team. That’s intentional. You won’t be handed neatly scoped tickets or wait on someone else to define the architecture—you’ll own it. This role is about building the systems that make complex engineering data usable, fast, and reliable. You’ll design and implement services in Python, model and optimize data in Postgres, and work closely with frontend engineers to bring entirely new workflows to life. A typical week might include designing a data model to support large-scale design datasets, debugging a performance bottleneck that only appears under real customer load, or pushing back on a proposed approach because you see a simpler, more scalable path. This is not a maintenance role. You’re building something new, where the right technical decisions early will matter a lot later.

Requirements

7+ years of backend development experience in a production environment
Strong experience with Python and relational databases (Postgres preferred)
Proven ability to design data models and optimize query performance
Experience building and maintaining APIs for data-heavy applications
Comfortable owning systems end-to-end, from design through production
Experience with writing robust unit tests

Responsibilities

Own the backend architecture for a new data-heavy product offering
Design and implement services in Python that are reliable, scalable, and maintainable
Model, query, and optimize complex datasets in Postgres
Identify and resolve performance bottlenecks in data-intensive workflows
Collaborate closely with frontend developers to shape APIs and user-facing functionality
Make pragmatic tradeoffs between speed of delivery and long-term scalability
Establish patterns and standards that future backend developers can build on