Senior Software Engineer

Bastion

22d • $240,000 - $270,000 • Hybrid

About The Position

Bastion builds regulated financial infrastructure for modern businesses. Bastion's full stack product suite covers stablecoin issuance, custodial wallet infrastructure, and global asset conversion rails, with the flexibility to deploy individual capabilities or combine them end-to-end. Bastion's regulated foundation underpins a compliance-first approach to risk management, ensuring the integrity and security of all financial activity within its systems. Bastion holds the appropriate licenses for its own operations, but can also act as a service provider, offering compliance and financial operations support under our customers’ licenses.

We are looking for a Backend Engineer to join our engineering team and build the core infrastructure that powers our stablecoin platform. In this role, you'll design and ship services that handle custody, transfers, issuance, and compliance workflows—systems that process real money and require exceptional reliability and security.
You'll work within one of our product verticals (Custody, On/Off Ramps, Issuance, or Shared Services), collaborating closely with product managers, compliance, and other engineers. Our teams are small and cross-functional, which means your work ships fast and has direct impact on customers and partners.
This is an opportunity to build financial infrastructure at a 30+ person company where ownership is real. We're remote-first, async-by-default, and expect engineers to take initiative—whether that's shipping features, improving observability, or strengthening the codebase. If you want to work on hard problems in a regulated domain where your contributions matter immediately, we'd love to talk.
We have an office in NYC with a very flexible hybrid working environment, but are also open to remote employees in the US.

Requirements

• Ability to learn the rails, ship confidently.
• Ability to run core services locally and trace requests through logs/metrics.
• Ability to take ownership of a service surface and raise the bar.
• Ability to drive cross-service impact.
• Experience designing stable, evolvable APIs for custody, transfers, or issuance without breaking downstream clients.
• Experience building idempotent job flows for high-throughput transfers with strong audit trails.
• Experience hardening key operations using hardware-backed isolation and robust key policies.
• Experience improving p95 latency through query tuning, caching, or backpressure strategies.
• Proficiency in Go and TypeScript/Node.js.
• Experience with gRPC and REST service patterns.
• Experience with Postgres, Redis, Kafka.
• Experience with Temporal for workflow management.
• Experience with AWS, containers, Kubernetes, Terraform.
• Experience with hardware-backed key isolation with Nitro Enclaves for sensitive operations.
• Experience with Datadog, Grafana, Sentry, Incident.io for observability and ops.

Nice To Haves

• Experience with GraphQL/tRPC at the edge for frontend BFFs.
• Experience with Rust as needed.

Responsibilities

• Design and ship services that handle custody, transfers, issuance, and compliance workflows.
• Work within one of Bastion's product verticals (Custody, On/Off Ramps, Issuance, or Shared Services).
• Collaborate closely with product managers, compliance, and other engineers.
• Take initiative in shipping features, improving observability, or strengthening the codebase.
• Learn the service layout, CI/CD, observability, engineering conventions and practices.
• Ship a small feature slice or quality-of-life improvement in one service.
• Add tests, dashboards, or runbook notes for the areas you touch.
• Take ownership of a service or capability across the product, with an eye toward issuance-readiness.
• Lead a medium-scope project: e.g., updating an API contract, implementing a partner integration, or improving robustness of a critical path.
• Strengthen reliability with better logging, tracing, alerts, and failure handling.
• Lead a cross-service initiative, such as an API versioning plan, a data model migration, or a compliance-driven workflow change.
• Shape technical direction with design docs and mentoring.
• Partner with product and compliance to make pragmatic, regulation-aware tradeoffs.

Benefits

• Equal employment opportunities to all employees and applicants for employment.
• Prohibition of discrimination and harassment of any type.
• Participation in E-Verify to authorize eligibility of employment in the United States.

What This Job Offers

• Job Type: Full-time
• Career Level: Senior
• Education Level: No Education Listed