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Senior Api Developer Jobs (NOW HIRING)

ValidaTek

Senior API Developer

Tacoma, WA · On-site

$58.50 - $77.25/hr

We are seeking an experienced Senior API Developer to join our team and take charge of designing, developing, and maintaining high-quality APIs that power our applications. The ideal candidate will ...

ValidaTek

Senior API Developer

Tacoma, WA · On-site

$59 - $77.75/hr

We are seeking an experienced Senior API Developer to join our team and take charge of designing, developing, and maintaining high-quality APIs that power our applications. The ideal candidate will ...

ValidaTek, Inc.

Senior API Developer

Tacoma, WA · On-site

$100K - $160K/hr

We are seeking an experienced Senior API Developer to join our team and take charge of designing, developing, and maintaining high-quality APIs that power our applications. The ideal candidate will ...

Apex Systems

Sr. API developer

Merrifield, VA · On-site

$82.66 - $103.32/hr

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

# Sr. API developerApply**Job#: 3041822**** **Sr. API developer**Location:** Merrifield, Virginia (Hybrid)Role OverviewWe are seeking a Senior API Developer with strong experience in Core Banking ...

New

CGI Inc.

API Developer

Dallas, TX · On-site

As a senior API developer, you will be responsible for designing, developing, and maintaining high-performance APIs that power to the system. You will work closely with cross functional teams to ...

HCL Global Systems Inc

Senior API Developer

$55.75 - $73.75/hr

HCL Global Systems Inc is a company seeking a Senior API Developer. The role involves reviewing design solutions, collaborating with engineers and product teams, and ensuring timely delivery of ...

@Orchard

Senior JAVA API Developer

Dallas, TX · On-site

$90K - $120K/yr

Senior JAVA, API Developer Can be located on-site in client offices in Dallas, TX, Pittsburgh, PA, Cleveland, OH, Birmingham, AL, Phoenix, AZ, Denver, CO. No visa sponsorship is available for these ...

Ztek Consulting

Senior API Engineer Azure

Chicago, IL · On-site

Senior API Engineer Azure Location: Chicago, IL(Hybrid) Role Overview We are seeking a Senior API ... Build automated CI/CD pipelines for API applications and Azure infrastructure using Azure DevOps ...

New

Doist

Sr Software Engineer (API)

Springfield, VA · On-site

$120 - $180/hr

Job Overview As a Sr API Engineer with INflow Federal, you'll be providing high-quality, cost-effective cloud solutions to our clients. Be part of a dynamic environment where your expertise in API ...

New

Kanak Elite Services Inc

$53.50 - $69/hr

Senior API Engineer Location : Atlanta, GA Onsite (Must be local) Duration : Long term contract ... Champion DevOps practices such as CI/CD, containerization (Docker/Kubernetes), and cloud deployment ...

Capstone IT

API Developer

Omaha, NE · Remote

Senior API/Cloud Native Engineer! Remote possible! Capstone IT is assisting our client find a senior engineer to support their new API Development initiatives! This is a DIRECT PLACEMENT opportunity.

Ztek Consulting

Senior API Engineer MuleSoft

Chicago, IL · On-site

$107K - $144K/yr

Senior API Engineer MuleSoft Location: Chicago, IL Role Overview We are seeking a Senior API ... Strong understanding of Git, DevOps, and DevSecOps practices . * Ability to independently deliver ...

New

1 point system

API Developer

Jersey City, NJ · On-site

Lead and support API migration efforts from Apigee Edge to Apigee X or Hybrid versions ... Senior level developer with extensive experience in React Native and ReactJS, strong knowledge of ...

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Senior Api Developer information

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How much do senior api developer jobs pay per hour?

As of Aug 20, 2026, the average hourly pay for senior api developer in the United States is $61.73, according to ZipRecruiter salary data. Most workers in this role earn between $52.40 and $69.23 per hour, depending on experience, location, and employer.

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.

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 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.

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 REST, SOAP, and API security, with many organizations seeking experienced professionals to build and maintain scalable, secure APIs. The demand is expected to grow as digital transformation accelerates and companies prioritize cloud-based solutions.

How much do senior API developers make?

Senior API developers typically earn between $100,000 and $150,000 annually, depending on experience, location, and industry. They often have expertise in RESTful APIs, programming languages like Java or Python, and may hold certifications that enhance their earning potential.
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Senior Api Developer jobs near you
Infographic showing various Senior Api Developer job openings in the United States as of August 2026, with employment types broken down into 82% Full Time, 2% Part Time, and 16% Contract. Highlights an 80% Physical, 6% Hybrid, and 14% Remote job distribution, with an average salary of $128,400 per year, or $61.7 per hour.

Senior API Developer

ValidaTek

Tacoma, WA • On-site

$58.50 - $77.25/hr

Other

Re-posted 28 days ago

Job description

Company Overview
At ValidaTek, we modernize and optimize IT services to solve some of the most critical challenges facing federal civilian and defense agencies. From customers to partners to top-talent employees, ValidaTek puts people first, empowering them to exceed expectations and transform government organizations. Our employees are building purpose-driven careers, not just filling jobs. We bring together people with many different perspectives, experiences, and talents to drive innovation and achieve more together than we can individually. Our commitment to quality and performance optimization is the reason why our IT Service Projects and New Development Projects have been appraised at CMMI Maturity Level 5, positioning us as one of a handful of elite companies to receive the highest form of third-party validation. ;br>
Summary:
We are seeking an experienced Senior API Developer to join our team and take charge of designing, developing, and maintaining high-quality APIs that power our applications. The ideal candidate will have a strong background in API design principles, security standards, and best practices, along with proficiency in programming languages and frameworks. This role also requires leadership skills to mentor junior developers and ensure effective collaboration within the team.
Responsibilities:
  • Design and implement efficient, scalable, and user-friendly APIs following best practices, including RESTful API design, API versioning, and comprehensive API documentation.
  • Utilize programming languages such as Java, Python, or JavaScript, along with frameworks like Spring, Flask, or Node.js to develop robust APIs.
  • Write clean, maintainable code that adheres to industry standards, ensuring high performance and reliability.
  • Implement API security standards, including OAuth 2.0, JWT, and API keys, to protect user data and ensure secure access to APIs.
  • Conduct thorough testing of APIs using tools and techniques such as unit testing, integration testing, and API mocking to validate functionality and performance.
  • Integration of AI tools into the software development life cycle.
  • Automate the deployment of containerized micro services using continuous integration and continuous deployment (CI/CD) pipelines.
  • Develop and execute automated tests to ensure the reliability and efficiency of API endpoints.
  • Provide mentorship and guidance to junior developers, fostering their growth and encouraging best practices in API development.
  • Collaborate effectively with cross-functional teams to understand project requirements and translate them into technical solutions.
  • Communicate complex technical concepts clearly to non-technical stakeholders, ensuring alignment on project objectives.
  • Manage multiple projects and deadlines simultaneously, demonstrating strong organizational and time-management skills.
  • Lead project planning, estimation, and tracking efforts within an agile development environment, ensuring timely delivery of high-quality APIs.

Qualifications:
  • Bachelor's degree in a Computer Science related field and 7+ years of API development/design experience. Experience may be substituted in lieu of degree.
  • Active DoD Secret clearance Preferred. Must be able to obtain a DoD public trust
  • Experience within the DHA theater - highly preferred.
    Proficient in API design principles, including RESTful API design, versioning, and documentation.
  • Deep understanding of API best practices, with a proven ability to design APIs that are efficient, scalable, and user-friendly.
  • Strong programming skills in languages such as Java, Python, or JavaScript, with experience in development frameworks like Spring, Flask, or Node.js.
  • Experience with API security standards, including OAuth 2.0, JWT, and API keys, with a focus on data protection and security.
  • Familiarity with API testing tools and methodologies, including unit testing, integration testing, and API mocking.
  • Strong leadership skills, with a passion for mentoring and developing junior developers.
  • Excellent communication skills, with the ability to explain complex technical concepts to non-technical stakeholders.
  • Proven ability to manage multiple projects and meet deadlines in a fast-paced environment.
  • Experience with agile development methodologies, with a track record of leading project planning, estimation, and tracking efforts.

This is an exciting opportunity for a Senior API Developer to play a key role in shaping our API architecture and driving innovation in our development efforts. Join us in delivering exceptional digital experiences through robust API solutions.
Salary Disclosure
Actual salary will be based on a variety of factors including but not limited to experience, geographic location, contract affordability, internal equity, education, and certifications. The upper end of the salary range may be reserved for individuals who have demonstrated tenure with the company, seniority, and proven excellent performance. This includes factors such as education, certifications, and extensive/unique experience beyond what is required.
EEO Statement
ValidaTek is an Equal Opportunity Employer. All qualified applicants will be considered without regard to disability, protected veteran status, or any other status protected by federal, state, or local laws. Applicants who are selected for employment will be required to verify authorization to work in the United States. Offers of employment will be contingent upon passing a post-offer background check.
Equal Opportunity Employer/Protected Veterans/Individuals with Disabilities
This employer is required to notify all applicants of their rights pursuant to federal employment laws. For further information, please review the Know Your Rights notice from the Department of Labor.

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