Lead the development of external RESTful APIs, ensuring secure, scalable, and reliable integrations while collaborating with stakeholders on API strategy.
About GoodLeap:
GoodLeap is a technology company delivering best-in-class financing and software products for sustainable solutions, from solar panels and batteries to energy-efficient HVAC, heat pumps, roofing, windows, and more. Over 1 million homeowners have benefited from our simple, fast, and frictionless technology that makes the adoption of these products more affordable, accessible, and easier to understand. Thousands of professionals deploying home efficiency and solar solutions rely on GoodLeap’s proprietary, AI-powered applications and developer tools to drive more transparent customer communication, deeper business intelligence, and streamlined payment and operations. Our platform has led to more than $30 billion in financing for sustainable solutions since 2018.
GoodLeap is also proud to support our award-winning nonprofit, GivePower, which is building and deploying life-saving water and clean electricity systems, changing the lives of more than 1.6 million people across Africa, Asia, and South America.
GoodLeap is on a mission to connect a world in which everyone can live sustainably. As a technology-first company, we help homeowners make smart, energy-efficient upgrades through seamless financing and modern software experiences. We’re looking for a Senior Web API Engineer to lead the development of externally facing RESTful integration APIs that connect our platform to a broad network of partners and third-party developers. This is a hands-on engineering role focused on designing scalable services, improving developer experience, and shaping how external systems integrate with GoodLeap. If you're excited to build meaningful systems that support real-world sustainability goals, we’d love to talk.
Essential Job Duties & Responsibilities
- Design and build secure, reliable, and scalable RESTful APIs for external integration.
- Lead API-first development using OpenAPI (Swagger) to drive consistency and clarity.
- Architect service boundaries and implementation patterns optimized for external consumption.
- Deliver robust authentication, versioning, and fault-tolerant APIs aligned with partner needs.
- Collaborate with product and technical stakeholders to define long-term API strategy and standards.
Required Skills, Knowledge and Abilities
- Proficiency with Node.js and TypeScript in a production environment.
- Deep understanding of RESTful API design, including resource modeling and HTTP semantics.
- Experience building externally consumable APIs, including considerations for usability, security, and stability.
- Strong foundation in OAuth2, API keys, and token-based authentication for service integration.
- Proficiency with OpenAPI (Swagger) specifications and developer-facing documentation.
- Experience integrating with Kong API Gateway, including routing, rate limiting, and plugins.
- Deployment experience in AWS, particularly using Amazon ECS for containerized services.
- Familiarity with performance optimization, caching strategies, and observability practices for APIs.
- Passion for clean interface design and external developer experience.
Preferred Qualifications & Experience
Additional Information Regarding Job Duties and Job Descriptions:
Job duties include additional responsibilities as assigned by one's supervisor or other managers related to the position/department. This job description is meant to describe the general nature and level of work being performed; it is not intended to be construed as an exhaustive list of all responsibilities, duties and other skills required for the position. The Company reserves the right at any time with or without notice to alter or change job responsibilities, reassign or transfer job position or assign additional job responsibilities, subject to applicable law. The Company shall provide reasonable accommodations of known disabilities to enable a qualified applicant or employee to apply for employment, perform the essential functions of the job, or enjoy the benefits and privileges of employment as required by the law.
If you are an extraordinary professional who thrives in a collaborative work culture and values a rewarding career, then we want to work with you! Apply today!
Top Skills
Amazon Ecs
AWS
Kong Api Gateway
Node.js
Openapi
Swagger
Typescript
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What you need to know about the Boston Tech Scene
Boston is a powerhouse for technology innovation thanks to world-class research universities like MIT and Harvard and a robust pipeline of venture capital investment. Host to the first telephone call and one of the first general-purpose computers ever put into use, Boston is now a hub for biotechnology, robotics and artificial intelligence — though it’s also home to several B2B software giants. So it’s no surprise that the city consistently ranks among the greatest startup ecosystems in the world.
Key Facts About Boston Tech
- Number of Tech Workers: 269,000; 9.4% of overall workforce (2024 CompTIA survey)
- Major Tech Employers: Thermo Fisher Scientific, Toast, Klaviyo, HubSpot, DraftKings
- Key Industries: Artificial intelligence, biotechnology, robotics, software, aerospace
- Funding Landscape: $15.7 billion in venture capital funding in 2024 (Pitchbook)
- Notable Investors: Summit Partners, Volition Capital, Bain Capital Ventures, MassVentures, Highland Capital Partners
- Research Centers and Universities: MIT, Harvard University, Boston College, Tufts University, Boston University, Northeastern University, Smithsonian Astrophysical Observatory, National Bureau of Economic Research, Broad Institute, Lowell Center for Space Science & Technology, National Emerging Infectious Diseases Laboratories
