Contract IT JObs
Location: Scottsdale, AZ or Austin, TX
Duration: 6+ months
Client: PayPal
API Developer – API & AI Integration
Call Notes – API Developer Role
The team is working on identifying “dark APIs” — APIs that exist in production environments but are not actively serving traffic.
These dormant APIs may present potential security vulnerabilities, so the focus is on detecting and cataloging them.
The initiative involves identifying all dark APIs, assessing their risk exposure, and classifying them accordingly.
Key Focus Areas:
Detect and inventory all dark APIs currently in production.
Conduct risk classification and security analysis for each API.
Data sensitivity will be categorized into Class 1 through Class 3 data levels.
Each API will receive a risk assessment score based on security exposure and data classification.
APIs will then be onboarded to the organization’s API platform and properly cataloged for governance and monitoring.
Tools / Technologies Mentioned:
Python and Java
GitHub (code repository and management)
Datadog (monitoring and observability)
Required Qualifications
API Development (Core Focus)
3–5 years of professional experience designing and developing RESTful APIs
Strong knowledge of API design principles, patterns, and best practices (REST, versioning, pagination, error handling)
Experience with API documentation tools such as OpenAPI/Swagger and Postman
Proven ability to design APIs for scalability, performance, and maintainability
Experience implementing API security (OAuth 2.0, JWT, API keys)
Hands-on experience with API testing frameworks and methodologies
Understanding of rate limiting, throttling, and API gateway patterns
Experience managing the API lifecycle, including inventory, deprecation analysis, and code identification across large service environments
Ability to programmatically analyze API codebases (e.g., JAX-RS annotations, OpenAPI specs) to extract endpoint metadata at scale
Spring Boot Expertise
Extensive experience building APIs using Spring Boot and Spring Web
Experience with Spring Cloud for distributed API architectures
Strong knowledge of Spring Security for API authentication and authorization
Node.js & Express
Experience developing RESTful APIs using Node.js and Express
Understanding of async/await patterns and event-driven architecture
Familiarity with Express middleware, routing, and error handling
Python & FastAPI
Experience developing APIs with Python and FastAPI
Knowledge of Python async/await patterns and type hints
Payment API Integration
Hands-on experience integrating PayPal APIs (REST APIs, webhooks, payment processing)
Understanding of payment workflows, transaction management, and reconciliation
Knowledge of secure payment data handling and PCI compliance considerations
Experience implementing webhooks and event-driven payment processing
API Governance & Analysis
Experience analyzing API traffic patterns
Ability to reconcile multiple data sources (APM traces, traffic logs, code analysis) to generate evidence-based API lifecycle recommendations
Understanding of API observability concepts, including trace sampling, resource normalization, service attribution, and traffic aggregation
Experience building automated tools for API fleet analysis across large service environments (100+ services)
AI-Assisted Development
Experience using AI-assisted development tools (GitHub Copilot, Claude Code, Cursor, or similar)
Ability to leverage AI for API design review, code generation, and documentation
Experience using AI to analyze codebases and identify optimization opportunities
Proficiency using AI to accelerate API testing and validation
Experience building hybrid pipelines combining deterministic scripts with AI-driven validation
Ability to design AI prompts and domain-specific context for code analysis
Version Control & Collaboration
Experience with GitHub Enterprise (on-premise) and GitHub EMU environments
Strong understanding of Git workflows, branching strategies, GitHub Actions, and pull request processes
Agentic Workflows
Experience designing and implementing agentic workflows and autonomous systems
Understanding of workflow orchestration and event-driven architectures
Ability to build intelligent API-driven automation systems
Preferred Skills
Experience with GraphQL APIs
Knowledge of gRPC and other API protocols
Experience with API monitoring and observability tools (Datadog, Traceable), including programmatic access to APM span data, trace metrics, and traffic analysis via Datadog APIs
Familiarity with API management platforms
Experience integrating with additional payment providers (Stripe, Square)
Knowledge of microservices communication patterns
Experience with containerization technologies (Docker, Kubernetes)
Familiarity with Google Cloud Platform (GCP)
Technical Environment
Languages: Java, Python, Node.js
Frameworks: Spring Boot, Spring Cloud, Express, FastAPI
API Tools: Swagger/OpenAPI, Postman
Version Control: GitHub Enterprise (on-premise & EMU)
Payment Integration: PayPal APIs
Development Tools: AI-assisted coding tools (GitHub Copilot, Claude Code, Cursor)
Observability: Datadog APM APIs (v1 Metrics, v2 Spans Analytics)
Analysis: API endpoint extraction, traffic comparison, and code verification
To apply for this job email your details to annu.kumari@anviktek.com