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Api Engineer Jobs (NOW HIRING)

ECS

API Engineer - Journeyman

Fairfax, VA · On-site

ECS is seeking an API Engineer - Journeyman to support the Army National Guard (ARNG) ENOCS program by developing and maintaining robust application programming interfaces (APIs). The selected ...

Booz Allen Hamilton, Inc.

IL · On-site

$86K - $198K/yr

API Engineer The Opportunity: We are seeking an experienced API Platform Engineer to design, develop, and support enterprise-scale API platforms that enable secure, reliable, and high-performance ...

Centennial

API Engineer

Geismar, LA

$100K - $120K/yr

Centennial is seeking an API Design Engineer to join a specialized engineering firm in Geismar, Louisiana delivering practical, real‑world engineering and testing services for process equipment.

Booz Allen Hamilton, Inc.

IL · On-site

$86K - $198K/yr

Share API Engineer The Opportunity: We are seeking an experienced API Platform Engineer to design, develop, and support enterprise-scale API platforms that enable secure, reliable, and high ...

Soni Resources

Lead API Engineer

New York, NY · On-site

$190K - $225K/yr

We are partnering with a client to hire a Lead API Engineer who has personally designed, built, secured, and operated APIs end?to?end in large-scale environments. This is a hands-on technical ...

Booz Allen Hamilton, Inc.

IL · On-site

$86K - $198K/yr

Share API Engineer The Opportunity: We are seeking an experienced API Platform Engineer to design, develop, and support enterprise-scale API platforms that enable secure, reliable, and high ...

Booz Allen Hamilton, Inc.

IL · On-site

$86K - $198K/yr

API Engineer The Opportunity: We are seeking an experienced API Platform Engineer to design, develop, and support enterprise-scale API platforms that enable secure, reliable, and high-performance ...

Booz Allen Hamilton, Inc.

IL · On-site

$86K - $198K/yr

Share API Engineer The Opportunity: We are seeking an experienced API Platform Engineer to design, develop, and support enterprise-scale API platforms that enable secure, reliable, and high ...

Booz Allen Hamilton

API Engineer

Scott Air Force Base, IL · On-site

$86K - $198K/yr

API Engineer The Opportunity: We are seeking an experienced API Platform Engineer to design, develop, and support enterprise-scale API platforms that enable secure, reliable, and high-performance ...

Booz Allen Hamilton, Inc.

IL · On-site

$86K - $198K/yr

API Engineer The Opportunity: We are seeking an experienced API Platform Engineer to design, develop, and support enterprise-scale API platforms that enable secure, reliable, and high-performance ...

Booz Allen Hamilton

API Engineer

Scott Air Force Base, IL · On-site

$86K - $198K/yr

API Engineer The Opportunity: We are seeking an experienced API Platform Engineer to design, develop, and support enterprise-scale API platforms that enable secure, reliable, and high-performance ...

ECS

Backend/API Engineer

Falls Church, VA · On-site

Everforth ECS is seeking a Backend/API Engineer to work in the National Capital Region covering the Pentagon, Falls Church, and Fairfax . Please Note: This position is contingent upon contract award.

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How much do api engineer jobs pay per hour?

As of Jun 9, 2026, the average hourly pay for api engineer in the United States is $53.63, according to ZipRecruiter salary data. Most workers in this role earn between $43.27 and $62.26 per hour, depending on experience, location, and employer.

What does an API Engineer do?

An API Engineer is responsible for designing, developing, and maintaining application programming interfaces (APIs) that allow different software systems to communicate with each other. They ensure APIs are efficient, secure, and scalable, often working closely with front-end and back-end developers to integrate new features or services. API Engineers also write documentation, perform testing, and troubleshoot any issues related to API functionality. Their work is essential in enabling seamless data exchange and connectivity between various platforms and applications.

What is the difference between Api Engineer vs Software Developer?

AspectApi EngineerSoftware Developer
Required CredentialsBachelor's in CS or related, API-specific certificationsBachelor's in CS or related, general programming certifications
Work EnvironmentFocus on API design, development, and integrationDevelops a wide range of software applications
Employer & Industry UsageTech companies, SaaS providers, API-centric businessesBroadly across all industries, including tech, finance, healthcare
Search & Comparison IntentUnderstanding API-specific roles, skills, and responsibilitiesGeneral software development roles and career paths

Api Engineers specialize in designing, developing, and maintaining APIs to enable software communication, often working closely with backend systems. Software Developers create a wide range of applications across various platforms. While both roles require programming skills and similar educational backgrounds, Api Engineers focus more on API architecture and integration, whereas Software Developers work on broader software solutions.

What are the key skills and qualifications needed to thrive as an API Engineer, and why are they important?

To thrive as an API Engineer, you need strong programming skills (often in languages like Java, Python, or Node.js), a solid understanding of RESTful and/or GraphQL APIs, and relevant experience or a degree in computer science or a related field. Familiarity with API management tools (such as Postman, Swagger, or Apigee), cloud platforms, and authentication protocols like OAuth is typically expected. Excellent problem-solving abilities, attention to detail, and effective communication skills help you collaborate with cross-functional teams and address integration challenges. These competencies are crucial for building secure, scalable, and reliable APIs that enable seamless data exchange and power modern applications.

How does an API Engineer typically collaborate with frontend and backend teams during the development lifecycle?

API Engineers play a crucial role in bridging the gap between frontend and backend teams. They often work closely with frontend developers to understand data requirements and ensure that APIs deliver the necessary information efficiently and securely. Simultaneously, they collaborate with backend engineers to integrate APIs with databases and other services, ensuring robust performance and scalability. Regular communication and participation in agile ceremonies like sprint planning or stand-ups help prevent misalignments and keep development on track.
More about API Engineer jobs
What cities are hiring for Api Engineer jobs? Cities with the most Api Engineer job openings:
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API Engineer jobs near you
Infographic showing various Api Engineer job openings in the United States as of June 2026, with employment types broken down into 98% Full Time, 1% Part Time, and 1% Contract. Highlights an 87% Physical, 5% Hybrid, and 8% Remote job distribution, with an average salary of $111,552 per year, or $53.6 per hour.
API Engineer - Journeyman

API Engineer - Journeyman

ECS

Fairfax, VA • On-site

Full-time

Posted 6 days ago

Job description

Job Summary:
ECS is seeking an API Engineer - Journeyman to support the Army National Guard (ARNG) ENOCS program by developing and maintaining robust application programming interfaces (APIs). The selected candidate will contribute to seamless data exchange and interoperability between enterprise systems, implementing cutting-edge DevSecOps practices and continuous monitoring solutions.
Responsibilities:
• Develop and maintain APIs to support internal and external system integration.
• Implement authentication and authorization mechanisms to ensure secure data exchange.
• Integrate logging and monitoring capabilities consistent with DevSecOps requirements.
• Collaborate with application developers, database administrators, and infrastructure teams to ensure reliable API services.
• Maintain comprehensive documentation of interface specifications.
• Ensure API integrations align with enterprise architecture standards and cybersecurity policies.
• Support integration testing within Agile or DevSecOps development environments.
• Contribute to the continuous improvement of API development processes and practices.
Qualifications:
Required:
• Clearance: TS//SCI Eligible required
• U.S. Citizenship required
• DoD 8140.03 Compliance: DoD Cyber Workforce Framework (DCWF) Work Role 651-Enterprise Architect at the Basic proficiency level
• Certifications (one or more required): CND
• Bachelor’s degree in Computer Science, Information Systems, or related discipline, or equivalent experience
• Minimum of 3-10 years of experience in application development, system integration, or interface engineering within DoD or Federal IT environments
• Proven experience developing and maintaining APIs for secure data exchange and interoperability
• Experience with authentication, logging, and monitoring implementations in DevSecOps environments
• Ability to collaborate effectively with cross-functional teams to support enterprise API services
Preferred:
• Clearance: Active TS//SCI preferred
• Experience supporting Army National Guard or DoD IT programs
• Familiarity with Agile development methodologies
• Strong understanding of enterprise architecture standards and cybersecurity policies
• Experience with continuous monitoring and improvement of API services
• Advanced degree in a related field
Company:
Everforth ECS is the federal segment of Everforth, a $4B global organization with over 10,000 employees. Founded in 2001, the company is headquartered in Fairfax, USA, with a team of 1001-5000 employees. The company is currently Late Stage.

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