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Junior Api Developer Jobs in Washington (NOW HIRING)

Summary Jr. Backend Developer Vienna, VA Are you ready to enhance your skills and build your career ... Improve reliability and performance through API design, testing, monitoring, and observability

Req ID: 40540 Summary Jr. Backend Developer Vienna, VA Are you ready to enhance your skills and ... Improve reliability and performance through API design, testing, monitoring, and observability

Job Title Jr. Drupal Developer # of Hires Needed 1 Date Needed By 2/27/2026 Category Information ... REST API development Clearance Required: Ability to obtain a Public Trust Clearance CTAC is an ...

Junior Technical Writer

Mclean, VA · On-site

$120K - $150K/yr

API references, Integration guides, and SDK documentation * Collaborate with Back-End Developers to ensure accurate and up-to-date API contracts * Document Data dictionaries and metadata, Database ...

Junior Technical Writer

Mclean, VA · On-site

$120K - $150K/yr

API references, Integration guides, and SDK documentation * Collaborate with Back-End Developers to ensure accurate and up-to-date API contracts * Document Data dictionaries and metadata, Database ...

Showing results 21-40

Junior Api Developer information

What is a junior API developer?

Junior API Developers are entry-level software professionals who specialize in building, maintaining, and integrating Application Programming Interfaces (APIs). They typically work under the supervision of more experienced developers to ensure that APIs function correctly and meet the needs of applications or external users. Their responsibilities may include writing code, testing endpoints, troubleshooting issues, and documenting API features. Junior API Developers often collaborate with other team members to deliver secure and efficient API solutions.

What are the key skills and qualifications needed to thrive as a junior API developer, and why are they important?

To thrive as a Junior API Developer, you need a solid understanding of programming languages (such as JavaScript, Python, or Java), RESTful API concepts, and basic software development principles, often supported by a relevant degree or coding bootcamp. Familiarity with API testing tools (like Postman), version control systems (such as Git), and documentation standards is typically required. Strong problem-solving abilities, attention to detail, and effective communication skills help you collaborate with team members and address technical challenges. These skills are crucial for building reliable APIs, ensuring smooth integration, and supporting agile development in collaborative environments.

What are some common challenges faced by junior API developers, and how can they overcome them?

Junior API Developers often encounter challenges such as understanding legacy codebases, integrating with multiple third-party services, and ensuring robust security practices. Adapting to various documentation standards and debugging complex data flows can also be tricky at the start. To overcome these challenges, it's helpful to actively seek mentorship from more experienced colleagues, utilize comprehensive API documentation, and participate in regular code reviews. Building a habit of writing clean, well-documented code and learning automated testing tools can also help enhance your effectiveness and confidence in the role.

What is the difference between Junior Api Developer vs Api Developer?

AspectJunior Api DeveloperApi Developer
Required CredentialsTypically an entry-level degree in Computer Science or related field, some certifications preferredUsually requires more experience, advanced certifications, or specialized training
Work EnvironmentOften in team settings, under supervision, learning on the jobMore autonomous, responsible for designing and maintaining APIs independently
Employer & Industry UsageCommon in tech companies, startups, and organizations building APIsUsed across industries for developing scalable API solutions

The main difference between a Junior Api Developer and an Api Developer lies in experience and responsibility. Junior Api Developers are typically entry-level, focusing on learning and supporting API tasks, while Api Developers have more experience and handle complex API design and implementation independently.

Are API developers in demand?

API developers are in high demand due to the increasing reliance on web services and integrations across industries. Skills in REST, SOAP, and API management tools enhance job prospects, and many organizations seek professionals to develop, maintain, and optimize APIs for digital transformation.

How much does a Junior API Developer make?

A Junior API Developer typically earns between $50,000 and $70,000 annually, depending on location, experience, and company size. Entry-level roles often require knowledge of RESTful APIs, programming languages like Python or JavaScript, and familiarity with tools such as Postman or Swagger.

What are the most commonly searched types of Api Developer jobs in Washington?

The most popular types of Api Developer jobs in Washington are:

What are popular job titles related to Junior Api Developer jobs in Washington?

For Junior Api Developer jobs in Washington, the most frequently searched job titles are:

What cities in Washington are hiring for Junior Api Developer jobs?

Cities in Washington with the most Junior Api Developer job openings:

Infographic showing various Junior Api Developer job openings in Washington as of July 2026, with employment types broken down into 81% Full Time, 6% Part Time, and 13% Contract. Highlights an 83% Physical, 4% Hybrid, and 13% Remote job distribution.

Junior Developer / Microsoft 365 Systems Specialist

Constellation Software Engineering LLC

Bethesda, MD • On-site, Remote

$71K - $93K/yr

Full-time

Medical, Dental, Life, Retirement, PTO

Posted 19 days ago


Job description

Junior Developer / Microsoft 365 Systems Specialist

CSEngineering is seeking a Junior Developer / Microsoft 365 Systems Specialist to support the DoW and CSE Headquarters. The candidate will develop, enhance, integrate, and support secure web applications while assisting with Microsoft 365 administration, endpoint management, identity and access management, cloud services, and technical support activities. This position requires collaboration with government customers, contractors, developers, cybersecurity teams, and business stakeholders. The role follows a hybrid work arrangement and requires the ability to work effectively in both remote and office environments. Occasional after-hours support may be required for deployments, production incidents, and scheduled maintenance.

JOB RESPONSIBILITIES

  • Design, develop, test, deploy, and maintain secure web applications using HTML, CSS, Python, Django, JavaScript and Go/Golang.
  • Develop, consume, document, and troubleshoot RESTful APIs and integrations with Microsoft and identity services.
  • Support the Navy JAG Website and Wagtail CMS, including templates, workflows, permissions, publishing, and user accounts.
  • Use Azure DevOps for source control, work tracking, pull requests, CI/CD pipelines, and deployments.
  • Support relational databases such as PostgreSQL, SQL Server, or MySQL, including queries and troubleshooting.
  • Administer users, groups, roles, permissions, and application access in Microsoft Entra ID and Microsoft 365.
  • Support SSO and identity integrations using Entra ID, OAuth 2.0, OpenID Connect, SAML, CAC/PIV, and Navy Identity Service.
  • Maintain inventory of IT assets and assist with workstation setup and deployment.
  • Support CSE Headquarters with day-to-day IT operations, including desktop support, software installations, printer support, conference room technology, and general technical assistance.
  • Assist with Microsoft Intune device enrollment, compliance policies, application deployment, configuration profiles, and endpoint troubleshooting.
  • Participate in team meetings and contribute to continuous process improvement initiatives.

REQUIRED QUALIFICATIONS

  • U.S. Citizenship required.
  • Must be eligible to obtain and maintain a Secret Security Clearance.
  • Bachelor's degree in Computer Science, Software Engineering, Information Technology, or a related discipline; equivalent experience may be considered.
  • One (1) to three (3) years of experience in software development, full-stack development, application support, or a related technical role. Relevant internships, certifications, and substantial project experience may be considered.
  • Hands-on experience developing applications using Python and Django.
  • Working knowledge of Java and Go/Golang, with practical experience in at least one.
  • Experience with HTML, CSS, JavaScript, responsive design, and RESTful APIs.
  • Experience using Git, GitHub, Azure DevOps, or similar development platforms.
  • Experience with relational databases and SQL.
  • Familiarity with Microsoft 365, Microsoft Intune, Microsoft Entra ID, and SharePoint Online.
  • Understanding of object-oriented programming, secure software development, source control, testing, and debugging methodologies.
  • Strong analytical, communication, documentation, customer service, and problem-solving skills.
  • Ability to prioritize multiple assignments and collaborate with technical and functional teams.
  • Must be able to support federal or Department of Defense systems and customers.

PREFERRED QUALIFICATIONS

  • Experience with Wagtail CMS or other Django-based enterprise CMS platforms.
  • Experience supporting Microsoft Azure or Azure Government environments.
  • Familiarity with Power Apps, Power Automate, Power Pages, and Dataverse.
  • Experience with SharePoint Online administration and Microsoft Graph API.
  • Knowledge of Docker OR containerized applications
  • Experience with CI/CD pipelines, automated testing, and deployment automation.
  • Experience with PowerShell, Bash, Python automation, or Linux administration.
  • Familiarity with OAuth 2.0, OpenID Connect, SAML, CAC/PIV, and certificate-based authentication.
  • Microsoft, cloud, development, security, or CompTIA certifications.

Location: Bethesda, MD (Hybrid)

COMPANY OVERVIEW

Who we are- CSEngineering, a Service-Disabled Veteran-owned small business established in 2002, is dedicated to becoming the premier engineering and services firm in our industry, all while prioritizing client satisfaction above all else.

What we do- With a rich history of excellence, we boast significant expertise in a wide array of areas, including satellite systems, weapons and missile systems, naval architecture, aviation systems, IT and Enterprise Architecture, and more. We offer a comprehensive range of services, including logistics, program management, and IT operations. As a recipient of the Hire Vets Gold Medallion award, we're proud of our commitment to veteran hiring, retention, and professional development.

Why should you be a part of CSE- At CSEngineering, our employees are at the heart of everything we do. We foster a culture of passion and growth, where individuals are encouraged to excel build fulfilling careers, and continually strive for excellence. Our dedication to innovation and excellence propels us forward, as we continuously strive to set new standards in our industry. Join us and be part of a team that's redefining what's possible.

CSEngineering offers a competitive salary and comprehensive benefits package, including medical, dental, life, disability, 401k, and paid time off.

CSEngineering is an equal opportunity employer committed to a culturally diverse workforce. All qualified applicants will receive consideration for employment without regard to race, religion, color, age, sex, national origin, sexual orientation, gender identity, or veteran status.