Senior Lead Software Engineer - API Designer

Company: JPMorganChase
Location: Jersey City
Posted on: April 1, 2026

Job Description:

Description Be an integral part of an agile team that's constantly pushing the envelope to enhance, build, and deliver top-notch technology products. As a Senior Lead Software Engineer at JPMorgan Chase within Commercial and Investment Banking team, you will play a key role in an agile team dedicated to building, enhancing, and delivering trusted, market-leading technology products. You will leverage your deep technical expertise and problem-solving skills to address complex challenges across multiple technologies and applications, driving significant business impact through your contributions. Key Responsibilities API Design: Design RESTful, GRPC, and/or event-driven APIs using best practices and industry standards (e.g., OpenAPI/Swagger, AsyncAPI). Documentation: Create and maintain clear, comprehensive API documentation and usage guides. Collaboration: Work with product, engineering, and Architect teams to gather requirements and translate them into API specifications. Standards & Governance: Define and enforce API design standards, style guides, and governance processes. Prototyping: Build API prototypes and mock servers to validate designs and facilitate early feedback. Developer Experience: Advocate for and implement features that improve the developer experience, such as versioning, error handling, and discoverability. Lifecycle Management: Support the full API lifecycle, including versioning, deprecation, and backward compatibility. Quality Assurance: Collaborate with QA and development teams to ensure APIs are well-tested and meet performance, security, and reliability standards. Continuous Improvement: Stay up-to-date with API trends, tools, and technologies, and drive continuous improvement in API design practices. Required Skills & Qualifications Formal training or certification in software engineering concepts, with 5 years of applied experience Strong understanding of REST, GRPC, and/or event-driven API paradigms Proficiency with API specification tools (OpenAPI/Swagger, RAML, AsyncAPI, Postman, etc.) Experience with API gateways, management platforms, and developer portals Excellent communication and documentation skills Familiarity with security best practices (OAuth2, JWT, API keys, etc.) Experience working in Agile/Scrum environments Preferred Qualifications Experience with AWS (EKS) Knowledge of Micro Services & Domain Driven architecture Experience with CI/CD pipelines and automated API testing Contributions to open-source API tools or standards

Keywords: JPMorganChase, Danbury , Senior Lead Software Engineer - API Designer, IT / Software / Systems , Jersey City, Connecticut