Senior Fullstack Engineer

About Bastion

Bastion enables financial institutions and enterprises to issue regulated stablecoins, generate revenue on reserves, and expand their ecosystems. Bastion's platform combines stablecoin issuance, secure custody, and seamless orchestration for cross-border transfers, on/off-ramps, and stablecoin conversions. With Bastion's platform and APIs, businesses can create and scale their stablecoin network, while optimizing revenue, compliance, and control.

You can check out our Guide for Candidates here to learn more about our work.

Work to Be Done

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. You need to be okay with that.

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

Our team is distributed, with a hub in New York City. For this role, we are open to candidates in the United States.

First 30 days: Ship features end-to-end

Ramp on our full-stack architecture: backend services, frontend applications, APIs, and data flows

Ship a small feature end-to-end: backend endpoint, frontend UI, and database schema change

Fix bugs across the stack and improve test coverage for the code you touch

Outcomes

Multiple features or bug fixes shipped to production with quality

You understand how data flows from frontend to backend to database

You can navigate our codebase and development workflow confidentlyBy 90 days: Own features and raise the bar

Take ownership of a feature area: user dashboard, transaction flows, admin tools, or API integrations

Lead a medium-scope project: building a new workflow, integrating a third-party service, or redesigning a key user experience

Improve system quality with better error handling, validation, observability, and user feedback

Outcomes

A delivered feature that improves user experience or enables new business capabilities

You're a go-to person for your feature area

Measurable improvements in reliability, performance, or user satisfactionBy 180 days: Drive product impact

Lead a cross-functional initiative: new product capability, platform redesign, or major integration

Shape technical direction with design docs, architecture proposals, and mentoring team members

Partner with product, design, and compliance teams to make pragmatic tradeoffs on user experience, performance, and regulatory requirements

Outcomes

A multi-sprint delivery that unlocks significant user or business value

Clear before/after improvements in user metrics, system performance, or developer velocity

Patterns and components that enable the team to ship faster and betterSome problems you might work on

Building secure, performant APIs for stablecoin issuance, custody, and transfers

Creating intuitive user interfaces for complex financial workflows with real-time updates and clear error handling

Implementing transaction monitoring dashboards with filtering, sorting, and export capabilities

Designing and building admin tools for compliance, user management, and operational support

Integrating third-party payment rails, banking APIs, and blockchain networks

Optimizing database queries and API responses for sub-second latency at scale

Building robust form validation, authentication flows, and permission systems

Implementing real-time notifications and status updates across frontend and backendOur typical stack

Languages: Go and TypeScript/Node.js; some services in Rust as needed

Backend: Go microservices with gRPC and REST APIs

Frontend: React, Next.js, TypeScript

BFF Layer: GraphQL and tRPC for backend-for-frontend services

Data: Postgres (RDS), Redis, Kafka, Snowflake

Workflow Management: Temporal

Security: AWS Nitro Enclaves for hardware-backed key isolation, IAM policies, secrets management

Infrastructure: AWS (ECS, EKS, Lambda), Kubernetes, Docker, Terraform

Observability: Datadog, Grafana, Sentry, CloudWatch

Incident Management: Incident.io

Bastion provides equal employment opportunities to all employees and applicants for employment and prohibits discrimination and harassment of any type without regard to race, color, religion, age, sex, national origin, disability status, genetics, protected veteran status, sexual orientation, gender identity or expression, or any other characteristic protected by federal, state or local laws. This policy applies to all terms and conditions of employment, including recruiting, hiring, and placement. Bastion participates in E-Verify to authorize eligibility of employment in the United States.