Senior Security Engineer at Bastion

Bastion provides the regulated infrastructure businesses need to hold, move, and issue stable coins. Our platform combines custodial wallets, global payment orchestration, and stablecoin issuance. Customers can use each product independently or connect them into a single end-to-end flow.
We operate through our own regulated entities, with compliance and risk controls built directly into the platform. We can also support customers operating under their own licenses with the compliance and financial operations required to run their programs.

We're looking for a hands-on Senior Security Engineer to join our security team as its second engineer. You'll work alongside our Staff Security Engineer and report to our CTO/CISO.

The foundation is already in place: a SOC 2 Type II report, conditional approval from the OCC for a national trust charter, a SIEM and detection pipeline, runtime security for Kubernetes, and time-limited, auditable access to production. You'll help scale that program across security engineering, infrastructure, product and application security, detection and response, and the technical side of GRC (SOC 1, SOC 2, OCC, and MiCA/DORA).

As a 40-person company, your work will directly protect our users and partners. You'll build on a strong foundation (we're featured in this AWS case study). Our platform is almost entirely Go, running on Kubernetes (EKS) in AWS and managed with Terraform, and our security services are written in Go too. You must be able to write production code. Expect to spend most of your time writing code, reviewing design docs, and building security tooling and middleware that engineers can easily drop into any service.

This role can be remote within the US, though we'd prefer someone in NYC or open to relocating.

Instead of a list of requirements, we want to give you a directional look into the first 30, 90, and 180 days on the job.

We are a startup, so the pace is fast and the specific work will change. People who thrive here find ways to contribute in their first week and are fully productive by their third month. You need to be okay with that.

If you think this is something you can handle, we'll be excited to speak with you.

First 30 days:
Learn and ship from week one

• Get hands-on with our Go codebase, AWS and Kubernetes environment, SIEM, and security services

• Contribute security feedback to at least one engineering design doc

• Ship your first security fix, guardrail, or detection to production

• Learn our incident response and on-call procedures, and join our security rotation

• Get up to speed on our DLP program and start contributing to its rollout

• Outcomes

  • Production code shipped in your first month

  • Join the security on-call rotation, so the team has real coverage

By 90 days:
Own initiatives independently

• Own at least one security domain end to end, such as Kubernetes and cloud hardening, application security in CI, or detection engineering

• Write and tune detections as code, add new telemetry sources, and reduce alert noise

• Ship your first reusable security library or middleware in Go (for example authorization, tenant isolation, request signing, or input validation) and get it adopted by at least one service team

• Be the security reviewer on design docs for new product features and architecture changes

• Deliver control automation and evidence for an active audit or regulatory workstream (SOC 1, SOC 2, OCC)

• Help launch and triage our bug bounty program, and grow our DLP coverage and policies

• Outcomes

  • Measurable risk reduction from controls, fixes, or detections you built

  • Recognized as the owner of at least one security domain

By 180 days:
Scale your impact

• Drive multi-quarter initiatives such as default-deny service-to-service networking,…