1

Contractual Api Developer Jobs (NOW HIRING)

API Development: Experience designing, implementing, and maintaining APIs * DevSecOps: Working ... contractual requirements which may cause an offer to fall outside of this range

Software Developer (Mid)

Riverdale, MD · On-site

$110K - $150K/yr

API Development: Experience designing, implementing, and maintaining APIs * DevSecOps: Working ... contractual requirements which may cause an offer to fall outside of this range

Project Manager

Buffalo, NY · On-site

$75K - $85K/yr

This role partners closely with Sales, Engineering, Operations, Quality, and external stakeholders ... At API Heat Transfer, we take our culture transformation seriously. Participation in our Culture ...

Project Manager

Buffalo, NY · On-site

$75K - $85K/yr

This role partners closely with Sales, Engineering, Operations, Quality, and external stakeholders ... At API Heat Transfer, we take our culture transformation seriously. Participation in our Culture ...

Project Manager

Buffalo, NY · On-site

$75K - $85K/yr

This role partners closely with Sales, Engineering, Operations, Quality, and external stakeholders ... At API Heat Transfer, we take our culture transformation seriously. Participation in our Culture ...

Project Manager

Buffalo, NY · On-site

$75K - $85K/yr

This role partners closely with Sales, Engineering, Operations, Quality, and external stakeholders ... At API Heat Transfer, we take our culture transformation seriously. Participation in our Culture ...

Position Summary API Heat Transfer is looking for individuals who enjoy being part of ... The Quality Inspector plays a critical role in ensuring products meet contractual, regulatory, and ...

Senior DevOps Engineer

Chantilly, VA · On-site

$175K - $230K/yr

Knowledge of web services, API, REST and RPC * Strong awareness of networking and internet ... contractual requirements which may cause an offer to fall outside of this range.

Senior DevOps Engineer

Chantilly, VA · On-site

$175K - $230K/yr

Knowledge of web services, API, REST and RPC * Strong awareness of networking and internet ... contractual requirements which may cause an offer to fall outside of this range.

Quality Inspector

Buffalo, NY · On-site

$25 - $27/hr

Position Summary API Heat Transfer is looking for individuals who enjoy being part of ... The Quality Inspector plays a critical role in ensuring products meet contractual, regulatory, and ...

Quality Inspector

Buffalo, NY · On-site

$25 - $27/hr

Position Summary API Heat Transfer is looking for individuals who enjoy being part of ... The Quality Inspector plays a critical role in ensuring products meet contractual, regulatory, and ...

DevOps Systems Engineer

Herndon, VA · On-site

$180K - $230K/yr

... API Server to the Database) o Monitor (and help develop scripts to monitor) services to ensure ... contractual requirements which may cause an offer to fall outside of this range.

DevOps Systems Engineer

Herndon, VA · On-site

$180K - $230K/yr

... API Server to the Database) o Monitor (and help develop scripts to monitor) services to ensure ... contractual requirements which may cause an offer to fall outside of this range.

Quality Inspector

Buffalo, NY · On-site

$25 - $27/hr

Position Summary API Heat Transfer is looking for individuals who enjoy being part of ... The Quality Inspector plays a critical role in ensuring products meet contractual, regulatory, and ...

Project Manager

New York, NY · On-site

$75K - $85K/yr

This role partners closely with Sales, Engineering, Operations, Quality, and external stakeholders ... At API Heat Transfer, we take our culture transformation seriously. Participation in our Culture ...

Application Programming Interface (API), DevOps, IT Systems Integration Certifications: None ... Rather, salary will be set based on experience, geographic location and possibly contractual ...

Showing results 41-60

Contractual Api Developer information

See salary details

$10

$59

$77

How much do contractual api developer jobs pay per hour?

As of Aug 20, 2026, the average hourly pay for contractual api developer in the United States is $59.89, according to ZipRecruiter salary data. Most workers in this role earn between $54.57 and $67.31 per hour, depending on experience, location, and employer.

What is a contractual API developer?

Contractual API Developers are professionals hired on a contract basis to design, build, and maintain Application Programming Interfaces (APIs) for organizations. They typically work for a specified period or project, rather than as full-time employees. These developers ensure that APIs function correctly, are secure, and meet business requirements, enabling different software systems to communicate efficiently. Contractual API Developers are often brought in for specialized expertise or to handle increased workloads during specific projects.

What are the key skills and qualifications needed to thrive as a contractual API developer?

To thrive as a Contractual API Developer, you need strong programming skills in languages such as JavaScript, Python, or Java, along with a solid understanding of API design principles and RESTful architecture. Familiarity with API management tools, documentation platforms like Swagger/OpenAPI, and version control systems such as Git is typically required. Excellent problem-solving, communication, and time management skills help you collaborate with clients and deliver solutions efficiently on project-based timelines. These skills ensure you can build secure, scalable APIs and meet diverse client requirements within contractual constraints.

What are some common challenges faced by contractual API developers, and how can they be managed effectively?

Contractual API developers often face challenges such as quickly adapting to unfamiliar codebases, aligning with the client's existing development standards, and ensuring smooth communication with in-house teams. Managing these challenges requires strong documentation practices, proactive communication, and a clear understanding of project requirements before development begins. Staying organized and setting regular check-ins with stakeholders can help address issues early and keep the project on track.
More about Contractual Api Developer jobs

What cities are hiring for Contractual Api Developer jobs?

Cities with the most Contractual Api Developer job openings:

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

The most popular types of Api Developer jobs are:

What states have the most Contractual Api Developer jobs?

States with the most job openings for Contractual Api Developer jobs include:

What job categories do people searching Contractual Api Developer jobs look for?

The top searched job categories for Contractual Api Developer jobs are:

Infographic showing various Contractual 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 $124,567 per year, or $59.9 per hour.

Software Developer (Mid)

VTG

Riverdale Park, MD • On-site

$110K - $150K/yr

Other

Posted 5 days ago


Job description

Overview
VTG is seeking a mid-level Software Developer to support our customer in College Park, MD. This is a hybrid role.
What will you do?
  • Build and enhance front-end user interfaces using React (including hooks,
    functional components, state management libraries)
  • Implement responsive UI components and follow UI/UX best practices, integrating
    with design systems.
  • Apply modern design patterns and UI frameworks such as React.
  • Develop, test, and deploy code in a Linux/WSL environment.
  • Experience with containerized deployments with Docker/Kubernetes.
  • Write automated UI tests utilizing Sikuli, Selenium framework.
  • Collaborate in Agile environment, participate in code reviews

Do you have what it takes?
Basic Qualifications:
  • Must have 5+ years of experience
  • Programming Languages: Proficiency in Typescript, C++, Java
  • Front-End UI Development: Hands-on experience building UI components with
    React
  • API Development: Experience designing, implementing, and maintaining APIs
  • DevSecOps: Working knowledge of Agile, CI/CD (GitLab CI, Jenkins, Azure DevOps),
    Docker, Kubernetes
  • Testing: Experience with automated testing tools such as Robot, Selenium, and
    Sikuli
  • IDE/Tooling: Comfortable using VSCode
  • Linux/WSL Development: Proficient in developing, building, and debugging
    applications within Linux/WSL Ubuntu 20.04
  • Cloud: Practical experience with AWS Kubernetes
  • Must have and maintain a Secret clearance

Preferred Qualifications:
  • Experience with Cosmos or similar mission-planning/analysis tools
  • Experience with real-time or combat systems and associated performance
    constraints
  • Cyber Security

Pay Range: VTG's estimated starting pay range is $110,000-$150,000 annually, which is a general guideline for the geographic location. When extending an offer, VTG also considers work experience, education, skill level, market considerations and may possibly include contractual requirements which may cause an offer to fall outside of this range