Senior Full-Stack Engineer, Identity & Auth Platform

Alpaca; United States; Remote; USD 150,000 - 210,000; Full time

Benefits offered by this job

Competitive Salary & Stock Options

Health Benefits

New Hire Home-Office Setup: USD $500

Monthly Stipend: USD $150 per month

Job summary

Alpaca, a US-headquartered leader in broker-dealer infrastructure, seeks a Senior Full Stack Engineer on the Platform Team to develop authentication, IdP, and access control across APIs and internal tools. You will own services end to end, primarily writing Go for backend and React/TypeScript for auth-related UI, with occasional Java for identity-provider extensions.

You will also work with Helm charts, analyze logs, manage deployments, and help other teams integrate with our services.

Qualifications

• 5+ years of experience writing code in strongly-typed languages, with at least one year of Go.
• Experience building web applications with React and TypeScript.
• Experience with relational databases (PostgreSQL) and fundamentals.
• Startup experience and ability to thrive in ambiguous environments with changing priorities.
• Ability to own tasks end-to-end—from requirements through deployment.
• At least 3 years working on systems at scale.

Responsibilities

• Build and improve authentication-related experiences in customer and partner web applications, including login, permissions, and credential management.
• Develop and maintain the platform’s authentication, authorization, and IdP services.
• Create and evolve shared libraries and SDKs.
• Integrate with identity providers and keep login and access policies working reliably across products.
• Deploy, monitor, and troubleshoot identity services in production.
• Help modernize legacy authentication patterns as the platform evolves.
• Own work end to end, from requirements through delivery and follow-up.
• Collaborate with other engineering teams on identity and access integration.
• Maintain high code quality, write tests, and participate in code reviews.
• Help investigate incidents and bugs, including on-call rotation.

Skills

Go

React/TypeScript

PostgreSQL

Systems at scale

End-to-end ownership

Startup experience

OpenID Connect / SAML

Tools

Kubernetes

Helm

OpenAPI

Keycloak

Kafka

Grafana/Prometheus

PromQL

Job description

Alpaca, a US-headquartered leader in broker-dealer infrastructure, seeks a Senior Full Stack Engineer on the Platform Team to develop authentication, IdP, and access control across APIs and internal tools. You will own services end to end, primarily writing Go for backend and React/TypeScript for auth-related UI, with occasional Java for identity-provider extensions.

You will also work with Helm charts, analyze logs, manage deployments, and help other teams integrate with our services.