Senior Software Developer, API Platform and Ecosystem

About the role

MaintainX is looking for a Senior Software Developer to own and evolve its public‑facing REST API platform. You will shape the API experience for thousands of enterprise customers, ensuring consistency, scalability, and a strong developer experience.

Key responsibilities

• Design, build, and operate public REST APIs with focus on authentication, rate limiting, versioning, pagination, idempotency and error handling.
• Implement batch and bulk operations for high‑volume data sync and migration workflows.
• Decouple the API layer from monolithic services and enforce contract testing to protect against breaking changes.
• Create scaffolding, templates and shared libraries to accelerate connector and integration development.
• Improve CI/CD pipelines, release automation and quality gates for ecosystem services.
• Produce developer documentation and reference SDKs.
• Support integration publishing, versioning and marketplace workflows (e.g., Workato, Tray).
• Enable automation‑driven onboarding, credential management and environment configuration.
• Own production services end‑to‑end: monitoring, on‑call rotation, incident response and performance tuning based on SLI/SLO metrics.

Required profile

• 4+ years of professional software engineering experience building backend systems, APIs or platform products.
• Strong background in service‑oriented development using TypeScript, Go or C#.
• Proven experience with relational databases such as MySQL or PostgreSQL, including schema design and query optimization.
• Solid understanding of distributed systems and API reliability principles.

Required skills

• REST API design and implementation
• Authentication/authorization, rate limiting, versioning, pagination, idempotency
• Batch and bulk data processing
• GraphQL integration
• CI/CD pipelines and release automation
• SDK development
• Integration platforms (Workato, Tray)
• Automation onboarding flows
• Enterprise integration patterns (SAP, Oracle EBS, NetSuite, Microsoft D365)
• Security, auditability, performance monitoring
• On‑call incident management and SLI/SLO analysis