API Developer

API Developer

Cymertek Corporation – San Antonio, TX 78208

San Antonio, TX 78208

TS/SCI Full Poly (U.S. Citizenship required)

We are seeking a talented API Developer to design, build, and maintain robust APIs that power our applications and services. You will collaborate with cross‑functional teams to create scalable, secure, and high‑performance solutions that integrate seamlessly with various platforms and services. The ideal candidate is passionate about developing efficient and effective APIs, focuses on clean code and best practices, and thrives in a fast‑paced environment.

Backend Developer, API Engineer, Web Services Developer, Integration Developer, Software Engineer, Cloud Developer, Full Stack Developer, Microservices Developer, Systems Developer, Dev Ops Engineer, etc.

Bachelor's Degree

Computer Science, Software Engineering, Information Technology, Data Science, Applied Mathematics, Information Systems, Web Development, Cloud Computing, Computer Engineering, Software Architecture, etc.

Most contracts allow 4–5 years of experience in lieu of a Bachelor's Degree. Some contracts grant 4–5 years credit for a Bachelor's Degree or 2 years credit for a Master's Degree. We will work with you to find the right fit.

• Design and develop RESTful APIs
• Implement API security standards
• Integrate APIs with third‑party services
• Maintain API documentation
• Perform unit and integration testing
• Ensure high API performance and scalability

• Proficiency in RESTful API development
• Strong knowledge of HTTP protocols
• Experience with API design patterns
• Familiarity with JSON and XML formats
• Experience with authentication and authorization techniques
• Proficiency in API testing tools

• Familiarity with Graph
  
  QL APIs
• Knowledge of microservices architecture
• Experience with API gateways
• Understanding of containerization
• Familiarity with cloud platforms
• Experience with API versioning strategies

• Excellent Salaries
• Flexible Work Schedule
• Cafeteria Style Benefits
• 10% – 401(k) Matching (Vested Immediately)
• Additional 401(k) Profit Sharing
• 30 days Paid Leave/Holiday (No Use or Lose)
• Day off for your birthday
• Medical/Dental/Vision – 100% employee coverage ($1,200 allowance or bonus)
• HSA/FSA
• AFLAC
• Long Term/Short Term Disability – 100% employee coverage (no cost)
• Life Insurance – 100% employee coverage (no cost)
• Additional Discretionary Life Insurance
• Paid Training
• No long, wordy reviews with tons of paperwork!!!
• Referral bonus program with recurring annual payments

Email us at or apply today at

Cymertek is proud to be an Equal Opportunity Employer committed to fostering an inclusive and diverse workplace. We embrace and celebrate differences in our employees, recognizing that a diverse workforce enhances our creativity, innovation, and overall success. At Cymertek, employment decisions are made based on merit, qualifications, and business needs without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, age, disability, veteran status, or any other characteristic protected by applicable laws.

We believe in creating an environment where all individuals are treated with respect and dignity, and where opportunities for professional growth and advancement are accessible to everyone, regardless of background or identity.