Senior Backend Engineer, Client API & Integrations
EnergyHub
A leading clean energy company is seeking a Senior Software Engineer in the United States to develop and maintain a client-facing REST API. This role involves building backend logic and ensuring security protocols are followed. Candidates should have over 5 years of software engineering experience, particularly with the Java/Spring ecosystem and RESTful APIs. Join a team focused on innovative energy solutions and make a significant impact on the industry's future. Remote work options are available. #J-18808-Ljbffr
$165k - $225k
...Senior Backend Engineer - Client Integrations New York, NY. Remote US. About Kalepa: Insurance is a $7T global industry built on professional labor... ...team, you will work on the external-facing APIs that power our customers' core workflows. Your day-to-...SeniorWork at officeRemote work$185k - $225k
...USD* We are looking for smart engineers who love to code, seek... ...excellent work. As part of the Client Integrations team, you will work on the external-facing APIs that power our customers’ core... ...engineers to build scalable backend solutions as we continue to grow...SeniorWork at officeRemote work- ...Smart Working Solutions is seeking a Senior Backend Developer to join a collaborative team focused... ...scalable backend services and APIs for a modern accommodation booking platform... ...API design. Enjoy a culture that values integrity and ambition while working remotely. #J-...SeniorRemote work
- ...providers by offering a unified API to access all on-chain liquidity... ...-down of the job Join LI.FI as a Backend Developer with a dedicated focus on integrating Hyperliquid functionalities into... ...the Expansion PM and other backend engineers to improve integrations, routing,...SeniorFor contractorsWork at officeRemote workFlexible hours
$85k - $155k
...A leading technology innovator is seeking a Senior Backend Engineer with expertise in API development. The ideal candidate will have over 5 years of experience in software engineering and strong Python skills. Responsibilities include designing and building API endpoints...Senior$140k - $210k
...Type Hybrid Department Engineering Stellar Labs... ...About the Role: We need a Backend/Systems Engineer who owns... ...outside world. The public API, indexing, data... ...Data pipelines, partner integrations, API hardening, load testing... ...the full path from client to consensus and back....Full timeTemporary workWork at officeLocal areaFlexible hours- ...Our client, a global leader in enterprise technology, data governance and AI-powered... ...seeking a dedicated and experienced Senior IBM Backend API Engineer to join their innovative team. As a... ...IBM Backend API Engineer , you will be integral to supporting the Data Value Platform...SeniorWeekly payTemporary workRemote workFlexible hours
- ...clean energy technology company in the United States is searching for a Senior Software Engineer I to join the Client Connections team. This role involves developing and maintaining client-facing APIs and collaborating with various teams to optimize their functionalities...SeniorRemote work
$190k - $220k
...technology company seeks a seasoned professional to join their Partner Integration team. The position is remote eligible, requiring candidates to... ...the company is registered. Responsibilities include designing APIs, leading projects, and ensuring user-centric solutions. Ideal...SeniorLive inRemote work$153k - $229.5k
...is seeking a seasoned developer to build core digital banking experiences. The role involves crafting user flows, building APIs, and integrating third-party services like Plaid. The ideal candidate will have over 10 years of experience with back-end technologies such as...SeniorRemote work- ...Technologies Inc. is seeking a Remote Software Engineer responsible for building backend infrastructure for a federated AI platform. This... ...role involves constructing AWS Lambda functions, API design, and data integration. The ideal candidate will have over 4 years of experience...Full timeRemote work
$180k
...too! We are looking for a Sr. Backend Engineer for our Core group to help... ...advancing and creating new integrations. Qualifications You are an exceptional... ...Debug and optimize slow API endpoints Help design our... ...based on the skill and seniority of the candidate. Equity: We...SeniorWork at officeRemote workWork from homeFlexible hours- ...looking for a skilled software developer to integrate enterprise systems with LLMs. The role... ...well as a solid understanding of REST APIs and integration practices. The successful... ...issues, and collaborate closely with AI engineers to optimize API interactions. This is a...SeniorFull time
$125k - $200k
...Senior Software Engineer, (API’s/integrations) US Based We’re hiring a Senior Software Engineer- (API’s/integrations... ...automates workflows, enhances client communication, and integrates across... ...eliminate operational friction Tech stack Backend engineering: Elixir Frontend:...SeniorImmediate start- ...velocity and high impact—without sacrificing work‑life integration. We value technical excellence, mutual respect, and solving... ...together. What We're Looking For We’re looking for a Senior / Staff Backend Engineer (API) – Economy to join our Economy team. You will play a...SeniorRemote workFlexible hours
- ...focused health solutions company in New York is hiring a Senior Backend Engineer to enhance EHR integrations and develop data-intensive applications. The ideal... ...experience, focusing on backend systems and REST APIs. Responsibilities include partnering with cross-functional...SeniorWork at officeRemote work
- ...Sphere Software is looking for a Senior Backend / Integrations Engineer to work on scalable integrations for an enterprise SaaS platform. This remote role requires strong experience in Node.js, REST APIs, and event-driven architectures, focusing on API integrations and...SeniorRemote work
- MoneyLion is seeking a Senior Software Engineer to join our Backend Core Enterprise team in New York City, working... ...systems, focusing on data-driven APIs and high-quality performance. With... ...AWS, this role aims to enhance the integration of features and architectural...Senior3 days per week
- ...Vinove is seeking an experienced Senior C# / .NET Engineer to support a critical platform security... ...the United States. This role involves backend/API enhancements and the implementation... ...skills in ASP.NET Core and API integrations. Responsibilities include designing...Senior
- ...Green-Irony is looking for a Senior MuleSoft Engineer in Raleigh, NC. You will be responsible for designing and delivering API-led integration solutions using the Anypoint Platform, driving... ...technical delivery with a focus on client relationships and successful project...SeniorRemote work
- ...Be a Cloud Software Hero for Schools! (Senior Backend Developer – NJ) Do you dream of building... ...Node.js). Know Python, system design, and API design inside and out. Can optimize and... ...on time. Design efficient and scalable client-server architectures. Collaborate with product...Senior
- ...A leading e-commerce integration solutions provider is seeking an experienced API/EDI Backend Developer. In this role, you will design and implement B2B integrations to enhance customer transactions. The ideal candidate will have a background in API development and EDI...
- ...platform in New York is seeking a Senior Implementation Engineer to manage integrations for merchants. The ideal... ...Responsibilities include guiding clients through integration, collaborating... ...experiences and deep understanding of Web APIs are essential for this role. #J-1...Senior
$224k - $336k
...A leading tech company in New York is seeking an experienced API Developer to enhance developer tools that prioritize user ownership. The role requires 8+ years of experience, a strong understanding of API best practices, and excellent communication skills. The annual...Senior- ...A leading technology firm in New York City seeks a Senior Backend Engineer to design and maintain core APIs, collaborating with product and design teams. Ideal candidates have over 5 years' experience in backend API development, proficiency in Kotlin, and are adept in...Senior
- ...leading fintech company based in New York is seeking an experienced engineer to develop user-centered developer tools. Responsibilities... ...maintaining production systems at scale, ensuring adherence to API development best practices, and writing clear technical documentation...Senior
- ...A healthcare advocacy marketplace is seeking a Senior Backend Engineer to design and develop scalable services and APIs. You will own your workflow from design to deployment, collaborate with cross-functional teams, and ensure system reliability. The ideal candidate has...SeniorRemote work
- ...A healthcare advocacy startup is seeking a Senior Backend Engineer to design scalable services and maintain a robust backend system. The role involves... ...have 5+ years in backend development and strong skills in API design and Typescript. This position is fully remote and...SeniorRemote work
- ...A healthcare tech company in New York City seeks a Senior Backend Engineer to build scalable API infrastructure that enhances healthcare accessibility. The ideal candidate will have extensive backend engineering experience, particularly with Python and FastAPI. You'll...Senior
- ...Framework Ventures is seeking a Senior Rust Backend Engineer to design and implement high-performance trading APIs supporting low-latency order entry and market data. You'll collaborate with a distributed team to optimize backend services, ensuring system resilience and...Senior
Do you want to receive more vacancies?
Subscribe and receive similar vacancies to Senior Backend Engineer, Client API & Integrations. Be the first to apply!
- back end developer internship summer New York, NY
- junior backend developer New York, NY
- senior backend developer New York, NY
- entry level back-end developer New York, NY
- lead backend developer New York, NY
- remote back end developer New York, NY
- back-end developer New York, NY
- backend python developer New York, NY
- java developer backend New York, NY
- backend software engineer New York, NY

