Platform Software Engineer

We're hiring a Platform Software Engineer to partner with our Technical Architect and drive both architecture and hands-on development for Slingshot's multi-partner integration platform. You'll own key architectural domains and build production services, work with APIs, pipelines, and tooling that accelerate partner onboarding, improve developer experience, and keep us ATO-ready., * Co-own architecture for APIs, data pipelines, multi-tenant controls, time-sync, and analytics; and write reference designs.

• Design & build scalable REST/GraphQL and event-driven services supporting diverse integration patterns.
• Develop high-volume, real-time pipelines with robust validation, error handling, pass-through, and observability.
• Engineer for ATO from day one, aligning designs with NIST 800-53, DoD IL, and FedRAMP; contribute evidence for accreditation.
• Evolve our API Developer Hub (design, docs, testing, lifecycle tooling) and self-service partner onboarding workflows.
• Implement API lifecycle management (versioning, deprecation, migration) and platform analytics for internal/external users.
• Onboard third-party models and simulations (including AI/ML/LLM and space-ops training software) with clear methodology and tooling.
• Collaborate cross-functionally with Product, Security, DevOps, QA, and external partner teams; engage with government stakeholders.
• Mentor engineers on integration patterns, reliability, and operational excellence; balance speed with long-term platform health.

• Experience: 5+ years in software development with emphasis on enterprise integration/API platforms; 2+ years owning substantial architectural scope.
• APIs & Events: REST, GraphQL, webhooks; Kafka/CloudEvents/queues; contract testing.
• Cloud (AWS): API Gateway, Lambda, EKS, and related PaaS/IaaS.
• IaC & DevOps: Terraform/CloudFormation/CDK; CI/CD (GitHub Actions); GitOps.
• Containers: Docker, Kubernetes, Helm, EKS.
• Languages/Stack: Java/Kotlin, Python, GraphQL, REST.
• Data: PostgreSQL, MongoDB
• Security: API keys, rate limiting, secrets management.
• AI/ML Integration: Proven delivery of AI/ML/LLM features into production APIs., * Direct experience mapping/implementing controls for NIST 800-53, DoD ILs, FedRAMP, including higher-classification or air-gapped environments.
• Startup/product organization background with a strong delivery cadence.
• Frontend familiarity (React) for Developer Hub contributions.
• Close collaboration with DevOps/SRE; infrastructure tooling and observability experience.
• QA partnership (contract/E2E tests for integrations) and predictable delivery with Product.
• Space/Aerospace exposure.
• Experience integrating complex external systems and simulation tech (HLA/DIS).

At Slingshot Aerospace, we're on a mission to make space safer and more secure for everyone. Our work directly impacts global security, disaster response, climate monitoring, and the critical infrastructure that connects our world. We're a team of builders, thinkers, and problem-solvers who believe that the next generation of space operations will be powered by better data and smarter software. We move fast, we're not afraid to fail, and we believe the best ideas can come from anywhere-whether you're in engineering, sales, product, or operations. If you want to work on something that truly matters, with people who care deeply about the impact we're making and help shape the future of an industry that's just getting started, you're in the right place.