Senior API Developer

Quick Facts

• Role: Senior API Developer

• Focus: Scalable REST/GraphQL APIs with Graph DB and GenAI on AWS

Description

Design, build, and maintain scalable APIs powering AI-driven enterprise applications. You will integrate GraphQL with Neo4j, implement secure high-performance backend services on AWS, and connect Large Language Models (OpenAI/Claude/Gemini) including RAG and vector search concepts. You will also build event-driven and serverless workflows using Kafka, AWS EventBridge, Lambda, API Gateway, and Step Functions.

Responsibilities

• Design, develop, and maintain scalable RESTful and GraphQL APIs

• Build secure, high-performance backend services using AWS cloud technologies

• Develop and optimize GraphQL schemas, resolvers, and API integrations

• Design and query graph databases using Neo4j

• Integrate Large Language Models (OpenAI ChatGPT, Claude, Gemini) into enterprise applications

• Develop AI-powered workflows using Retrieval-Augmented Generation (RAG) and vector search concepts

• Build event-driven applications using Kafka and AWS EventBridge

• Develop serverless applications using AWS Lambda, API Gateway, and Step Functions

• Implement OAuth 2.0 / OpenID Connect using Auth0 or Okta (or equivalent)

• Build Infrastructure as Code using Terraform or AWS CDK

• Participate in API design, code reviews, testing, CI/CD, and production support

• Collaborate with Product, Architecture, Security, and DevOps teams

Requirements

• 7+ years of backend software development experience

• Strong hands-on experience with GraphQL API development

• Experience working with Neo4j Graph Database

• Hands-on experience integrating Large Language Models such as OpenAI (ChatGPT), Claude (Anthropic), and Google Gemini

• Strong experience developing REST APIs and microservices

• Experience with AWS services including Lambda, API Gateway, EventBridge, and Step Functions

• Experience building event-driven architectures using Kafka or similar messaging platforms

• Experience with Terraform or AWS CDK

• Strong understanding of OAuth 2.0 and OIDC with Auth0 or Okta

• Experience with CI/CD pipelines and Git-based development

• Excellent problem-solving and communication skills

Benefits

• Remote work across the USA/Canada (per posting)