Senior Developer, API
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Job Description
Senior API Developer building secure REST and GraphQL services for YPO’s global member and chapter ecosystem. Governing AI-agent access with AWS, IaC, provenance, and consent controls.
Responsibilities:
- Design, build, and maintain YPO’s API platform supporting its member ecosystem, chapter operations, and agentic AI platform
- Own engineering implementation across the Members API, Chapters API, and Agentic Ecosystem APIs
- Design and implement production-grade RESTful and GraphQL APIs using AWS API Gateway
- Ensure APIs conform to YPO’s canonical ontology, global member graph, enterprise data dictionary, privacy, consent, and provenance requirements
- Build APIs within event-driven, domain-aligned, serverless-first architecture using CDC, Kafka, AWS EventBridge, AWS Lambda, and Step Functions
- Apply Domain-Driven Design principles and create clean, tested, documented, scalable APIs
- Define data models, versioning standards, authentication flows, and integration patterns using Auth0, Okta, and OAuth 2.0
- Implement performance, pagination, caching, query constraints, rate limiting, and secure API scaling practices
- Build governance layers for YPO’s AI agents using OpenAI, custom RAG, and Google Gemini
- Implement structured retrieval, citation-ready provenance, consent-aware filtering, deterministic fallback, and kill-switch-capable API boundaries
- Instrument agent integrations with hallucination-rate, task-success, and cost-per-outcome metrics
- Own API lifecycle activities including development, testing, documentation, versioning, deprecation, and migration planning
- Build sandbox environments, integration test suites, and automated contract tests
- Support CI/CD, deployment automation, Datadog observability, alerting, uptime SLAs, and Infrastructure as Code using Terraform or AWS CDK
- Design IAM boundaries using least privilege, permission boundaries, and Service Control Policies
- Contribute to YPO’s multi-account AWS strategy involving AWS Organizations, Control Tower, workload isolation, and cross-account roles
- Produce API documentation, example queries, and troubleshooting guides
- Support technical onboarding for product teams and integration partners
- Collaborate with Data Architecture, IT, Security, Product, data science, and ML teams
- Evaluate and integrate Elasticsearch, Kafka/AWS EventBridge, and Search Orchestration Service
- Deliver reliable, secure, explainable, observable APIs with no unauthorized agent access and full IaC compliance
Requirements:
- 5+ years of hands-on experience in security engineering
- At least 3 years focused on cloud infrastructure security (AWS, Azure, and/or GCP)
- Experience integrating security tooling into CI/CD platforms such as GitHub Actions, Azure DevOps, GitLab CI, or Jenkins
- Experience securing AI/ML infrastructure, including model APIs, data pipelines, vector databases, and inference endpoints
- Experience monitoring LLM usage and auditing model access controls
- API abuse detection across the entire SDLC
- Strong experience with IaC tools such as Terraform, CloudFormation, or ARM
- Familiarity with container security and Kubernetes environments
- Experience with SAST, DAST, SCA, and dependency scanning tools
- Proficiency in Python or equivalent scripting language
- Strong knowledge of IAM, encryption, OAuth/OIDC, RBAC, and secure cloud architecture principles
- Understanding of SOC 2, ISO 27001, and NIST frameworks
- Exposure to mobile application security on native iOS and/or Android platforms, including API security, token management, and mobile threat defense
- Bachelor’s degree in computer science, Information Security, or related field (or equivalent experience)
- Willingness and ability to travel domestically and internationally without restrictions, approximately 5–10% per year
- Ability to work flexible and/or extended hours as needed to accommodate members and team members in multiple time zones
Benefits:
- Performance-based bonus opportunities
- Remote work flexibility
- Comprehensive rewards package focused on wellbeing and growth
- Flexible and/or extended hours to accommodate multiple time zones
- Travel opportunities, approximately 5–10% per year
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