Senior Software Engineer-Golang-API Gateway

Job Summary

In this role, you will work with team of engineers who are responsible for the design, development and maintenance of our API Gateway. This team powers centralized routing, service discovery, rate limiting, and policy enforcement for MCP traffic and other internal APIs. You will design, implement, and operate dual-authentication and token-exchange capabilities, evolve gateway policies, drive multi-region reliability, and automate delivery on AWS. This role spans design through operations with a strong focus on performance, security, and developer experience.

Job Responsibilities

• Design, implement, and operate gateway capabilities: routing, service discovery, rate limiting/quotas, and policy enforcement.
• Build gateway extensions and filters in Lua (NGINX/OpenResty) and GO for authN/Z, token exchange, request shaping, and telemetry.
• Implement dual-auth support and seamless token exchange (OAuth2/OIDC, RFC 8693), including validation, caching, replay protection, and robust trust store management.
• Establish mTLS to backends and standardize API registration and onboarding patterns; integrate with discovery (Kubernetes/EKS, Consul).
• Automate deployments with IaC and CI/CD (Terraform/CloudFormation, Helm, GitHub Actions/Jenkins); use blue/green and canary releases with signed artifacts.
• Plan and run hybrid/multi-region topologies on AWS (active-active or active-standby), including global routing (Route 53/GLB), health checks, failover, and DR/chaos drills.
• Lead patching and upgrades with minimal downtime; define autoscaling policies, capacity plans, and incident response playbooks.
• Create onboarding guides, example configurations, and self-service workflows to accelerate adoption by MCP servers/agents and other internal services.
• Participate in code-reviews and proactively take ownership of PRs and make sure to catch all security vulnerabilities
• Proper collaboration and interaction with multiple teams across FactSet and respond to stakeholder queries in a timely manner

Nice to have:

• Kong Gateway experience (configuration, plugin development) - a strong plus.
• Envoy or NGINX expertise
• Multi-region traffic management (Global Accelerator/CloudFront), resilience patterns, and DR playbooks.
• Data stores for counters and policies (Redis/KeyDB, DynamoDB including Global Tables).
• Observability stacks (OpenTelemetry, Prometheus, Grafana, Loki/ELK) and SLO/error budget practices.

Disclaimer: This job posting has been aggregated from external source. Role details, content, and availability are subject to change. Applicants are advised to confirm the latest information directly on the company website before applying.