Careers

The senior bench, by intent.

We hire principal engineers and program leads who've already shipped at scale. No bait-and-switch staffing — every engineer we hire is one we'd put in front of a Fortune 500 CIO on day one. Small bench, deep impact, fair pay, no bench-warming.

Who we hire

Two profiles, in equal measure.

Principal & staff engineers

10+ years shipping to production at scale. Deep in one of our pillars (software, DevOps/SRE, AI, cloud, security). Comfortable embedded in client teams. Strong written communication; you'll write design docs that clients keep using after we leave.

Senior program & product leads

10+ years running multi-team initiatives at enterprise scale. Comfortable in executive briefings and standups in the same day. Honest status reporters. SAFe / PMP / CSPO welcome but not required.

What we offer

Senior-only engagements

You won't be staffed on a project where you're the most senior person by 7 years. Every engagement has a senior team. The work is hard and the peers are good.

Real impact

Most of our engagements ship something into regulated production within the first quarter. You'll see your work used by hospital systems, banks, and carriers.

Fair compensation

Above-market base. Performance bonus tied to client outcomes (real, not theatrical). Health, dental, vision, retirement match. Remote-first.

No utilization theatre

We track outcomes, not chargeable hours. Bench time is for skill development, internal R&D, and recovery — not billable padding.

Engineering-respected leadership

Founders and partners are still in code. Architecture decisions made by people doing the work. No "consulting partners" who haven't shipped in a decade.

Right-sized travel

Most engagements are remote-first with quarterly client on-site weeks. We don't run weekly Monday-to-Thursday-on-site grinds.

Open roles

We're hiring slowly and deliberately. Specific roles aren't always posted — talented senior engineers are encouraged to reach out anytime.

Principal Software Engineer (Java / .NET)

Healthcare or finance domain experience preferred. Event-driven architecture, audit-grade systems, FHIR or core-banking integrations. Apply →

Principal SRE / Platform Engineer

Kubernetes at scale, Terraform at scale, observability practice. Carrier or hospital-scale experience preferred. Apply →

Senior ML Engineer

Production ML — feature stores, model serving, eval harnesses. RAG / LLM experience. Healthcare or finance regulatory familiarity. Apply →

Principal Security Engineer

Zero-trust architecture, HIPAA / PCI / SOC 2 hands-on engineering. SIEM / detection-as-code. Apply →

Senior Program Lead

Multi-team enterprise programs. SAFe SPC or equivalent. Honest status reporter — bad news early. Apply →

General application

Don't see a fit but think you'd be a senior bench match? Send us your work — code, public talks, design docs, postmortems. Apply →

How to apply

Email hr@core923group.com with three things:

  1. What you'd want to work on at Core923 (one paragraph)
  2. A piece of work you're proud of — code, design doc, talk, postmortem, anything substantive
  3. Resume or LinkedIn

No cover letter. No long forms. We respond within one business week. If we move forward, the interview process is two technical conversations and one principals' chat — no whiteboards, no take-homes.

Ready to apply?

Email us. We respond within one business week.