Senior Developer, API

🕒 August 31

🇺🇸 United States – Remote

💵 $119.2k - $155k / year

⏰ Full Time

🟠 Senior

🔙 Backend Engineer

👻 Ghost score 15%

What it means: how likely this posting is sitting open without active hiring.How to read it: 60% or higher means we think this is a ghost. Lower scores are less of a worry.How we score it: age, reposts, open roles vs team size, how fast jobs close, and whether pay is listed.Fine print: an estimate from public data, not a judgment of the company. Real jobs can score high, so treat it as a hint, not a fact.

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YPO

WebsiteLinkedInAll Job Openings

201 - 500 employees

🤝 B2B

☁️ SaaS

📣 Marketing

B2B • SaaS • Marketing

YPO is a company that provides dynamic URL shortening, QR code generation, analytics, and comprehensive link management solutions for businesses. The company's products include branded links, mobile links, and UTM campaigns, offering integrations and APIs to enhance customer engagement across various industries such as retail, consumer goods, media, tech, and professional services. With a focus on data-driven solutions, YPO aims to streamline operations and improve user experience for its diverse clientele worldwide.

📋 Description

• Design, build, and maintain the API platform supporting YPO’s member ecosystem, chapter operations, and agentic AI platform • Own engineering implementation across Members, Chapters, and Agentic Ecosystem API domains • Design and implement production-grade RESTful and GraphQL APIs deployed via AWS API Gateway • Ensure APIs conform to YPO’s canonical ontology and global member graph without exposing Salesforce object structures • Design APIs within event-driven, domain-aligned, serverless-first architecture using CDC, Kafka, AWS EventBridge, AWS Lambda, and Step Functions • Define data models, versioning standards, authentication flows, and integration patterns • Apply performance-aware design including pagination, caching, query constraints, and rate limiting • Enforce privacy-first architecture, consent enforcement, transparent data usage, provenance, and explanation metadata • Implement governance for AI agents using OpenAI, custom RAG, and Google Gemini • Build API boundaries with structured retrieval, citation-ready provenance, consent-aware filtering, deterministic fallback, and kill-switch capability • Instrument agent API integrations to measure hallucination rates, task success rates, and cost-per-outcome metrics • Own API lifecycle management, including development, testing, documentation, versioning, deprecation, and migration planning • Establish API versioning, backward compatibility, and breaking-change standards • Build sandbox environments, integration test suites, and automated contract tests • Support CI/CD pipelines, deployment automation, Datadog observability, alerting, and uptime SLAs • Deploy infrastructure changes through Terraform or AWS CDK; prohibit manual production console changes • Design and enforce least-privilege IAM boundaries, permission boundaries, and Service Control Policies • Contribute to YPO’s multi-account AWS strategy using AWS Organizations and Control Tower • Produce API documentation, example queries, and troubleshooting guides • Support 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, well-tested, documented APIs with observable agent safety, explainability, and 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 with AI technologies and monitoring LLM usage and 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) • Strong ability to translate complex security risks into clear business decisions • Demonstrated ability to work collaboratively across product, engineering, and global teams • High degree of discretion and integrity in handling confidential information • Ability to operate independently in fast-moving, ambiguous environments • Ability to work flexible and/or extended hours across multiple time zones • Willingness and ability to travel domestically and internationally without restrictions, approximately 5–10% per year

🏖️ Benefits

• Performance-based bonus opportunities • Remote work flexibility • Comprehensive rewards package built around wellbeing and growth • Flexible and/or extended hours as needed to accommodate members and team members in multiple time zones • Willingness and ability to travel domestically and internationally approximately 5–10% per year