Senior API & Web Services Engineer
E Logic
E Logic is seeking a Senior Application Programmer to provide development and maintenance support for the Bureau of Diplomatic Technology's Integrated Personnel Management System (IPMS). In this role, you will design, develop, and support web services, while providing technical advice to project personnel. The suitable candidate will have strong programming experience in services, advanced knowledge of XML/JSON, and a solid grasp of Agile methodologies. This is a critical role, and hiring is contingent upon proposal selection. #J-18808-Ljbffr E Logic
- Mapbox is looking for a Software Development Engineer III to join its Maps API team in Washington, DC. You will lead the development of new mapping... ...while ensuring high reliability and performance of services as they scale. Responsibilities include mentoring peers...SeniorRemote job
- ...Syms Strategic Group, LLC is seeking a Senior Systems Engineer to build and support a cloud-based Web Dashboard application. The candidate will work with Angular... ...-end technologies to develop and maintain RESTful APIs. Applicants should have over 8 years of software development...SeniorRemote work
- ...Stack Developer with strong experience in Angular (v10+) and modern web technologies. The ideal candidate will have 5-8 years of hands‑on experience building scalable web applications, developing REST APIs, and working across both front‑end and back‑end layers. Key...Senior
- Syms Strategic Group, LLC is looking for a Senior Systems Engineer to work on healthcare data applications remotely. You will design and integrate RESTful APIs, collaborate with back-end teams, and ensure data accuracy. This role requires extensive experience in Java,...SeniorRemote job
- ...an experienced Fullstack Developer to design and build scalable web applications. The successful candidate will utilize technologies... ...platforms like Azure or AWS. This role involves developing RESTful APIs, microservices, and ensuring compliance with privacy regulations....Senior
$185k - $225k
...looking for a full-stack developer. This role requires 5+ years of software engineering experience, with expertise in JavaScript, Node.js, and React desired. You'll work on building scalable APIs and user experiences while investigating issues proactively. A background...Senior- Guidehouse is looking for a skilled software engineer in Bethesda to design and maintain backend services using Python/Django and Java Spring Boot. You will collaborate in developing responsive frontends using modern frameworks like React or Angular, and implement automated...SeniorFlexible hours
- A leading fintech company in Washington is seeking an experienced Senior Software Engineer to own projects from end-to-end in a collaborative environment. You will build reliable backends in Node and engaging user experiences in React. The ideal candidate has over 5 years...SeniorFull time
- ...Strategic Group, LLC is looking for a Senior Systems Engineer experienced with Angular to work... ...developing and supporting a cloud-based Web Dashboard application, and requires... ...deep knowledge in building RESTful APIs and back-end services using Java or NodeJS. Applicants...SeniorRemote work
- ...Syms Strategic Group, LLC is seeking a Senior Systems Engineer (Angular) to build and maintain cloud-based Web Dashboard applications for the Department of Veterans Affairs. The role involves enhancing APIs in Java/NodeJS and ensuring data accuracy for healthcare records...SeniorFull timeRemote work
$86.5k - $142.7k
...building proofs‑of‑concept, and guiding engineering teams through complex technical decisions... ...in Digital Engineering Managed Services. Hands‑on solution architecture & design... ...end application architectures across UI, APIs, services, data, AI components, integrations...SeniorSummer holidayFlexible hours- ...professional experience and a Bachelor’s or Master’s degree in Computer Science, Engineering, or Management Information Systems. The ideal candidate has strong skills in .NET/Node, experience with RESTful APIs, and proficiency in unit testing frameworks. This position offers the...SeniorContract workLocal area
- Agile Defense is seeking a Software Engineer (Java, OpenFGA) to join their team in Arlington, VA. This hybrid role requires you to build distributed backend services supporting operational AI and scalable delivery. The ideal candidate will have over 10 years of experience...Senior
- ...Systems Technologies Corporation is looking for an experienced Senior Full Stack Developer in Alexandria, Virginia. This full-time position is critical for supporting software maintenance and engineering within the government contracting sector. Key responsibilities involve...SeniorFull time
$86.5k - $142.7k
...building proofs‑of‑concept, and guiding engineering teams through complex technical decisions... ...in Digital Engineering Managed Services. Hands‑on solution architecture & design... ...end application architectures across UI, APIs, services, data, AI components, integrations...SeniorSummer holidayFlexible hours- ...Senior Web Application Developer Kadiak, LLC, a Koniag Government Services company, is seeking a Senior Web Application Developer with a Top-Secret security clearance to... ...connectors, integrate external systems, and optimize API-based integrations across the M365 and Azure...SeniorLocal areaFlexible hours
- Spire Government in Washington is looking for a Sales Engineer to lead technical discussions and solutions for Space Services customers. This role involves preparing technical presentations and collaborating with cross-functional teams. The ideal candidate will have a strong...Senior
- Honeywell International, Inc. is seeking an Advanced Field Service Engineer in Washington, DC. This role involves troubleshooting complex technical issues, project management, and working with the Pro‑Watch and MAXPRO customer base. You will provide technical solutions...Senior
- ...Network Designs, Inc. in Alexandria, VA is seeking a Senior .NET Developer responsible for full software development life cycle, including modernizing legacy applications. This role requires expertise in .NET Framework and .NET Core, with strong experience in Angular...Senior
$170k - $180k
...Piper Companies is seeking a Senior Fullstack Software Engineer to join a fast-growing healthcare technology startup. The Senior Fullstack... ...Node.js, and TypeScript. • Develop and scale backend services and APIs leveraging AWS cloud infrastructure. • Work with PostgreSQL...SeniorLocal areaRemote work- ...Job Title: Senior Front-End Developer (Angular 15, Mobile... ...of dynamic, responsive web applications using... ...components with back-end services. Mobile Development:... ...Integrate with RESTful APIs and manage state effectively... ...in Computer Science, Engineering, or a related field, or...Senior
- ...Overview: Insight Global is seeking a Senior Web App Developer to support internal FBI enterprise... ...veteran status, military or uniformed service member status, or any other status or... ...MVC (web development) • WCF and/or Web API • LINQ • Extensive SQL experience, including...SeniorContract work
- ProteinSimple is looking for a Field Service Engineer in Washington, DC to provide technical expertise in the installation, maintenance, and repair of complex equipment. The ideal candidate will have over 5 years of experience in field service, demonstrating technical...Senior
$110k - $200k
# Senior Front-End DeveloperSynergy ECPFull TimeseniorWashington... ...(NSI) is an IT services firm with a long-... ...team of highly cleared engineers, analysts, and program... ...of modern, user‐focused web applications that support... ...NET services using REST APIs, JSON, and XML* Implement...SeniorFull timeFlexible hours- ...scale. The team designs and maintains the APIs, user-facing tools, and partner... ...About the Role We're looking for a Senior Frontend Engineer to lead development of the primary products... ...Architect responsive, high-performance web and mobile applications for mission-critical...SeniorFull time
- ...off Vision insurance Senior Full Stack Engineer – React / FastAPI / Cloud /... ...TypeScript, Python / FastAPI, cloud services in AWS and/or Azure, and... ...-on software development, API design, cloud integration, application... ..., and enhance full stack web applications using React,...SeniorFull timeContract workRemote workFlexible hours
$145k - $180k
...Senior Full Stack Engineer GCH Tech is seeking an experienced Senior Full Stack Engineer to take technical... ....js) Develop and maintain RESTful APIs and microservices using Node.js /... ...of hands-on AWS experience across core services (EC2, RDS, S3, Lambda, IAM, Cognito)...Senior$130k - $190k
...Backend Engineer Nitra's mission is to build a more efficient healthcare... ...former Governors, White House senior staffers, and a co-founder of... ...Design database schemas and APIs for small-to-medium scoped... ...Architecture (2+ years) Fintech web applications (1+ years) The...SeniorFull timeWork at officeWork from home- ...Vision insurance Role Senior Full Stack Developer Location... ...of Collibra APIs, workflows, and Edge Server... ...adept at creating modern web interfaces, developing... ...high‑performance backend services, automating metadata... ...governance, architecture, and engineering teams, this developer...Senior
Do you want to receive more vacancies?
Subscribe and receive similar vacancies to Senior API & Web Services Engineer. Be the first to apply!
- web developer specialist Washington DC
- remote junior web developer Washington DC
- junior web developer internship Washington DC
- ecommerce web developer Washington DC
- remote entry level web developer Washington DC
- c# .net web developer Washington DC
- content developer Washington DC
- work from home web developer Washington DC
- web developer internship remote Washington DC
- remote web developer Washington DC

