API Engineer – Platform Integrations (AVM-AE-20250714)
Remote
Celara /
Contract /
Remote
We are looking for an experienced API Engineer to design and build a high-performance unified API platform that connects our applications to multiple external and internal services.
This is a hands-on engineering role where you will architect, implement, and optimize secure, reliable APIs that serve as the foundation of our next-generation product capabilities.
Key Responsibilities:
- Design and Develop: Build a robust API layer that integrates with a variety of third-party and internal services.
- Routing and Orchestration: Implement request routing, fallback strategies, and dynamic service selection logic.
- Authentication & Security: Develop secure authentication and authorization mechanisms (API keys, OAuth, RBAC).
- Rate Limiting and Quotas: Enforce per-client rate limits and usage quotas to control access and protect resources.
- Observability: Implement logging, tracing, and monitoring of requests and responses for analytics and debugging.
- Performance Optimization: Ensure low-latency, high-availability API endpoints, including caching strategies and load balancing.
- Collaboration: Work closely with product and engineering teams to integrate the API platform into the broader infrastructure.
- Documentation: Create clear API documentation, developer guides, and internal tooling for easier adoption.
About You:
- Experience:
- 3–6+ years developing production-grade APIs in Python (FastAPI), Node.js (Express), or Go.
- Hands-on experience designing and maintaining scalable API services.
- Experience working with enterprise API Gateway solutions (Kong, Mongo, MuleSoft, APISIX
- Familiarity with cloud-native architecture (AWS, GCP, or Azure)
- Technical Skills:
- Proficiency in RESTful API design principles.
- Strong understanding of authentication standards (OAuth 2.0, JWT).
- Experience with rate limiting, caching (Redis), and monitoring tools.
- Comfort integrating external APIs and designing clean abstraction layers.
- Mindset:
- You value clean code, clear documentation, and thoughtful testing.
- You’re comfortable working in early-stage environments and iterating quickly.
- You have strong communication skills and a collaborative approach.
Nice to Have:
- Experience working on multi-tenant platforms or large-scale API gateways.
- Familiarity with prompt management or workflow orchestration (not required).
- Exposure to observability stacks (OpenTelemetry, Datadog, Prometheus)
