Careers at Blue

Build the infrastructure trust will run on

Blue is building foundational infrastructure for the AI economy: systems designed to make complex coordination verifiable, reliable, and ready for real-world use.

We are a small team working on ambitious technical problems with a strong focus on quality, ownership, and thoughtful execution. If you're looking for a place where strong work has visible impact, Blue may be a good fit.

Culture fit

Does the way we operate resonate with who you are?

We value people who are comfortable with ownership, work well independently, and approach problems with a systems mindset.

High ownership

We do our best work with people who are comfortable taking ownership, working independently, and following problems all the way through.

Systems thinking

We value engineers who care about consistency, reliability, and how real-world constraints shape architecture and product decisions.

Clear execution

We appreciate direct communication, sound judgment, and steady execution focused on outcomes rather than optics.

Hiring process

A process that is practical, clear, and respectful of your time

We keep the sequence focused so both sides can understand fit, technical quality, and the shape of the work.

01

Introductory conversation

Up to 60 minutes

A practical conversation about your background, the kind of work you want to do next, and the context behind the role.

02

Take-home assignment

No live coding

We prefer to evaluate technical ability through a realistic take-home task that gives you time to think and show the quality of your approach.

03

Technical interview

Up to 90 minutes

A deeper discussion with a technical leader or senior team member about your experience, engineering judgment, and approach to the assignment.

04

Final review

Clear feedback and a timely decision

We gather feedback, review the process carefully, and aim to communicate clearly throughout.

Open positions

Choose the kind of ownership you want

Both roles are senior-level, deeply hands-on, and close to the product and protocol decisions that matter.