Full Stack Developer

Careers · Full-time · Boston (hybrid) or remote US

Full Stack Developer

Build the products, platforms, and client systems an AI-native firm runs on.

About the role

You will build in two directions at once: outward, delivering client systems (agentic workflows, integrations, dashboards, secure deployments), and inward, building bostoncyberx itself, from bcxBastion tooling to the automation that lets a small senior team operate like a large one. We are AI-native: coding agents are part of your toolchain here, and you will be expected to wield them well.

What you will do

Ship client-facing systems end to end: APIs, integrations, data pipelines, and clean front ends

Build and harden agentic workflows in production, with observability, evals, and guardrails

Work AI-natively: drive coding agents, review their output critically, and raise the bar on what one engineer ships

Implement security by design: authentication, secrets, least privilege, audit trails from day one

Contribute to internal platforms, accelerators, and the tooling behind our assessments

What you bring

4+ years shipping production web systems across the stack (we use TypeScript/Node, Python, and modern clouds)

Fluency with LLM APIs and at least one agent or orchestration framework, beyond the tutorial level

Security instincts: you have owned authentication, handled sensitive data, and can explain your threat model

Product judgment: you ask what the user is trying to do before you ask what the ticket says

Clear written communication with teammates and, occasionally, clients

Nice to have

Experience in consulting or client-facing delivery

Infra-as-code and CI/CD depth

Contributions to open source or a portfolio of shipped side projects

How we work

Ambitious problem solvers only. We run our own company on the technology we recommend, and we want every associate to say: this is where I did the best work of my career.

Tell us about something you built or changed, in your own words. A senior practitioner reads every application.

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