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Senior Api Developer Jobs in Silver Spring, MD (NOW HIRING)

Senior Software Developer

Fairfax, VA · On-site

$55.75 - $73.50/hr

Senior Software Developer Location: Onsite- Fairfax, VA 3 Days and in Washington, DC 2 Days per ... This role emphasizes backend architecture, distributed systems, API development, and cloud-native ...

Sr. Mobile Developer

Rockville, MD · On-site

$125K - $155K/yr

Senior Mobile Developer SUMMARY: We are seeking a highly skilled Senior Mobile Developer with a ... Additionally, expertise in back-end technologies, specifically AWS services and API integration, is ...

New

CTAC is seeking a Senior Drupal Developer to architect, build, and maintain customized Drupal ... Search API, and integrations • Contribute to architectural discussions and long-term ...

Role: Sr. MuleSoft Developer Location: Local to Herndon, VA preferred but will accept remote ... Strong expertise in Mule ESB, SOA principles, and RESTful API development using JSON and XML.

SR. FRONTEND DEVELOPER

Mclean, VA · On-site

$116K - $153K/yr

Experience translating development to UI, API understanding, and AI/ML exposure. Client seeking a Senior Software Engineer with a frontend focus to join our Engineering team. In this role, you will ...

Sr. Salesforce developer

Rockville, MD · On-site

$127K - $156K/yr

I have an opportunity for " Sr. Salesforce developer " and looking for a candidate who can join ... Experience in working data transformations and integrations using SOAP API, REST API. * Good to ...

Be Seen First

... Developer We are seeking a Senior Application Programmer/Developer to provide advanced development ... NET Web API, supporting secure, scalable system interoperability. · Implement and maintain user ...

Senior Software Developer

Washington, DC · On-site

$61.75 - $81.50/hr

Software Developer Senior DCSA | Security clearance required Our Company N2IA Technologies is a ... Formulate scalable reference architectures using AWS core services (e.g., Lambda, ECS, API Gateway ...

New

The Senior Lead Developer serves as the technical leader for enterprise application development ... Implement microservices, API-first architectures, and container-ready applications where applicable.

The ideal candidate will have extensive experience in Appian architecture, API development, and ... Appian Developer in a senior/lead role for production applications * 1+ years of experience ...

The ideal candidate will have extensive experience in Appian architecture, API development, and ... Appian Developer in a senior/lead role for production applications * 1+ years of experience ...

OutSystems Senior Developer

Washington, DC · On-site

$108K - $148K/yr

Damco Solutions is seeking an OutSystems Senior Developer with extensive experience in OutSystems ... SOAP API services in OutSystems (Expose and Consume). • Experience in using various project ...

Showing results 41-60

Senior Api Developer information

See Silver Spring, MD salary details

$15

$63

$90

How much do senior api developer jobs pay per hour?

As of Aug 17, 2026, the average hourly pay for senior api developer in Silver Spring, MD is $63.82, according to ZipRecruiter salary data. Most workers in this role earn between $54.18 and $71.59 per hour, depending on experience, location, and employer.

What is the difference between Senior Api Developer vs API Engineer?

AspectSenior API DeveloperAPI Engineer
Required CredentialsBachelor's in CS or related, experience in API developmentBachelor's or higher in CS, software engineering, or related field
Work EnvironmentSoftware development teams, tech companies, startupsDevelopment teams, cloud services, enterprise environments
Employer & Industry UsageTech firms, SaaS providers, e-commerceCloud providers, enterprise software, API platforms
Common Search & ComparisonOften compared for API design and development rolesFocuses on API infrastructure and deployment

While both roles involve working with APIs, a Senior API Developer primarily designs, develops, and maintains APIs, focusing on functionality and integration. An API Engineer often emphasizes the infrastructure, deployment, and scalability of APIs within larger systems. Understanding these distinctions helps employers and professionals choose the right role for their needs.

What is a senior API developer?

Senior API Developers are experienced software engineers who specialize in designing, building, and maintaining Application Programming Interfaces (APIs) that allow different software systems to communicate. They often lead technical projects, mentor junior developers, and ensure APIs are secure, scalable, and well-documented. Senior API Developers typically work with a variety of programming languages and frameworks, and collaborate closely with other teams to align API solutions with business goals.

What skills and qualifications are needed to thrive as a senior API developer?

To thrive as a Senior API Developer, you need advanced programming skills (often in languages such as Java, Python, or Node.js), deep understanding of API design principles, and experience with RESTful and/or GraphQL APIs, typically supported by a relevant degree or professional experience. Familiarity with API management tools (like Postman, Swagger, or Apigee), cloud platforms (such as AWS or Azure), and knowledge of authentication protocols (OAuth, JWT) are vital. Strong problem-solving abilities, effective communication, and leadership skills help in collaborating across teams and mentoring junior developers. These competencies ensure robust, scalable API solutions that meet business needs and integrate seamlessly with other systems.

Are senior API developers in demand?

Senior API developers are in high demand due to the increasing reliance on web services and integrations across industries. They are often required to have expertise in RESTful and GraphQL APIs, programming languages like Java or Python, and experience with cloud platforms, making their skills highly sought after in the job market.

How do senior API developers typically collaborate with product managers and frontend teams during the development process?

Senior API Developers play a key role in bridging backend systems with product and frontend teams. They work closely with product managers to interpret business requirements into technical specifications for APIs. Regular collaboration with frontend developers ensures that APIs are designed for usability, performance, and scalability, often involving code reviews, feedback sessions, and iterative testing. Effective communication and proactive problem-solving are essential to align API functionality with both business objectives and user experience.

What are popular job titles related to Senior Api Developer jobs in Silver Spring, MD?

For Senior Api Developer jobs in Silver Spring, MD, the most frequently searched job titles are:

What job categories do people searching Senior Api Developer jobs in Silver Spring, MD look for?

The top searched job categories for Senior Api Developer jobs in Silver Spring, MD are:

Infographic showing various Senior Api Developer job openings in Silver Spring, MD as of August 2026, with employment types broken down into 76% Full Time, 9% Part Time, and 15% Contract. Highlights an 80% Physical, 6% Hybrid, and 14% Remote job distribution, with an average salary of $132,737 per year, or $63.8 per hour.

Senior Software Developer

Hirekeyz Inc

Fairfax, VA • On-site

$55.75 - $73.50/hr

Contractor

Re-posted 23 days ago


Job description

Role: Senior Software Developer

Location: Onsite- Fairfax, VA 3 Days and in Washington, DC 2 Days per Week.

Duration: Long Term Contract

Position Require a Secret Clearance

Job Description:

The Senior Software Developer role requires a deep expertise in Java SE 11, strong full‑stack skills, and hands‑on experience architecting and deploying applications on Amazon Web Services (AWS). This role focuses on building scalable, secure, cloud‑native systems using AWS best practices. The role will Implement technical strategy, mentor engineers, and shape high‑impact cloud solutions for the DoD on AWS GovCloud. This role emphasizes backend architecture, distributed systems, API development, and cloud-native engineering, while also leveraging full‑stack fundamentals (HTML, CSS, SQL) for end‑to‑end solution delivery.

Primary Responsibilities: 

  • Architect, design, and implement backend services, microservices, and RESTful APIs using Java SE 11.
  • Leverage Java SE 11 capabilities (e.g., var, enhanced HTTP Client, modern JVM improvements) to build efficient and maintainable components.
  • Design efficient data models and schemas using SQL
  • Contribute to front-end integration using HTML5, CSS3, and foundational JavaScript.
  • Develop secure, high‑availability distributed systems aligned with AWS best practices.
  • Implement robust error handling, caching strategies, and performance optimizations across backend services.
  • Integrate with databases, message queues, API gateways, and third‑party systems
  • Apply AWS Well‑Architected Framework principles to ensure operational excellence, security, reliability, performance, and cost efficiency.
  • Conduct in-depth code reviews, provide technical mentorship, and drive engineering best practices.
  • Optimize systems for performance, observability, monitoring, security, and fault tolerance.
  • Work closely with DevOps teams to build and maintain CI/CD pipelines, deployment workflows, and cloud-based infrastructure.
  • Support operations and sustainment activities.
  • All other duties as assigned by management.

Skills and Qualifications:

  • Bachelor’s degree in computer science or a technical field
  • 8 years developing complex support applications with proven leadership in legacy software rebuilds
  • 8 years working in Java Standard Edition 11
  • 8 years AWS and Cloud computing experience
  • Front and back-end development knowledge in JAVA, HTML, SQL, CSS
  • Experience in cloud computing.
  • Excellent communication and management skills.

Certifications Preferred:

  • Microsoft Certified Solutions Developer (MCSD)
  • Zend PHP Certified Engineer
  • Microsoft Certified Solutions Expert (MCSE)

Security Clearance Requirements:

  • Must be a U.S. Citizen
  • Must have an active DoD Secret clearance.

Work Location:

  • 3 days in Fairfax, VA, 2 days in Washington, D.C.