Software Engineer
spark labsBismarck (ND)
About the role
Backend Developer (Full-Stack) - Spark Labs (Remote) Spark Labs is a fully remote software and AI integration company building custom solutions for B2B clients. Customer satisfaction is a top priority at Spark Labs, and every project is measured by how well it serves the client. We’re looking for a self-sufficient, API-focused developer who can own backend systems end to end, has experience handling sensitive healthcare data responsibly, and works directly with customers to turn their needs into reliable software.
What you’ll do:
- Design, build, and maintain secure, well-documented APIs and backend services
- Build and support systems that handle PHI in compliance with HIPAADeploy and operate services on AWSBuild and integrate MCP servers and adapters for AI-enabled workflows
- Contribute to frontend work as needed
- Work directly with clients to gather requirements, explain technical tradeoffs in plain language, and keep projects on track
- Own your work from first conversation through deployment and support, with minimal hand-holding
- Our stack
- Core: TypeScript, Bun workspaces/runtime, OXC API: Elysia, OpenAPI, CORS, server timing, OpenTelemetry, MCP adapter
Web: React, TanStack Router/Query/Form/Table/Virtual/Charts, D3, typed API client generated with Hey API/OpenAPIIdentity and policy: Better Auth (organizations, SSO, SCIM, passkeys, Stripe plugin); ZenStack policy tooling plus PostgreSQL RLSData: PostgreSQL, Kysely with Bun SQL driver, SQL migrations; planned evaluation of pgAudit, pgvector, and conditional pgactive replication
Requirements:
- Strong backend and API development experience with TypeScript and PostgreSQLHands-on experience working with PHI and building HIPAA-compliant systemsAWS experience deploying and running production servicesMCP experience (building servers, adapters, or integrations)
- Excellent communication skills and a genuine commitment to client satisfaction
- Self-directed: you manage your own time, ask good questions, and deliver without close supervision
Nice to have:
- Full-stack experience, especially React and TanStackExperience with Bun, Elysia, Better Auth, or ZenStackFamiliarity with OpenTelemetry, PostgreSQL RLS, or multi-tenant authorization
- Why Spark Labs Fully remote, smaller team, real ownership, modern tooling, and direct impact on client outcomes.
- This is a contractor position. Opportunity to turn into a direct hire in the future.
Before you apply
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Your profile is current
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Two examples you can talk through
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A number in mind
What you're on now and what would make you move. We negotiate better when we know both.
Your notice period
Employers plan around it, and it's the question that stalls offers most often.
Once you apply, someone reads it and calls you before anything reaches the employer — usually within two working days.