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Senior Api Developer Jobs in Missouri (NOW HIRING)

Our partner is looking for a Senior Software Engineer (Node & React, Headless API) based in ... stable, developer-first SaaS platform. You will work hands-on across backend and frontend ...

Senior Developer

Saint Louis, MO · On-site

$53 - $70/hr

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

Job Title- Senior Developer Project Location - Hybrid in Saint Louis, MO Duration- Full-time Visa ... Strong knowledge of web API/REST. * Strong knowledge of documenting technical specifications.

  • Medical

Through a single API, Yuno connects them to pay-ins, payouts, fraud prevention, KYC/KYB, and ... About The Role Yuno is looking for a Senior Web Developer to build the SDK, design system, and web ...

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Senior Api Developer information

See Missouri salary details

$14

$57

$82

How much do senior api developer jobs pay per hour?

As of Aug 15, 2026, the average hourly pay for senior api developer in Missouri is $57.90, according to ZipRecruiter salary data. Most workers in this role earn between $49.13 and $64.95 per hour, depending on experience, location, and employer.

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.

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.

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 RESTful and GraphQL APIs, programming languages like Java or Python, and experience with cloud platforms, making their skills highly sought after in the job market.

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

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

What are popular job titles related to Senior Api Developer jobs in Missouri?

For Senior Api Developer jobs in Missouri, the most frequently searched job titles are:

What cities in Missouri are hiring for Senior Api Developer jobs?

Cities in Missouri with the most Senior Api Developer job openings:

Infographic showing various Senior Api Developer job openings in Missouri as of August 2026, with employment types broken down into 84% Full Time, 2% Part Time, and 14% Contract. Highlights an 80% Physical, 6% Hybrid, and 14% Remote job distribution, with an average salary of $120,440 per year, or $57.9 per hour.

Senior API Management Engineer - Kong Enterprise Deployment

GDIT

Saint Louis, MO • On-site

$123K - $166K/yr

Full-time

Medical, Dental, Vision, Life, Retirement, PTO

Posted 29 days ago


General Dynamics Information Technology rating

7.8

Company rating: 7.8 out of 10

Based on 63 frontline employees who took The Breakroom Quiz

87th of 224 rated it services


Job description

Type of Requisition:

Regular

Clearance Level Must Currently Possess:

Top Secret/SCI

Clearance Level Must Be Able to Obtain:

Top Secret SCI + Polygraph

Public Trust/Other Required:

None

Job Family:

IT Infrastructure and Operations

Job Qualifications:

Skills:

Cloud Infrastructure, Kong Gateway, Red Hat OpenShift

Certifications:

None

Experience:

7 + years of related experience

US Citizenship Required:

Yes

Job Description:

Join GDIT as a Senior API Management Engineer, where technology meets opportunity in the field of enterprise IT. GDIT is a place where innovation thrives, and your contributions will make a significant impact on the efficiency and effectiveness of agency operations. As part of our team, you'll be more than just a technician; you'll be a key player in ensuring both immediate reliability and long-term advancement of our services.

Location: Opportunities available in Springfield, VA, or St. Louis, MO.

Job Description:

In this role, you'll join our Continuous Operations Release Environment (CORE) team, providing high-quality, cost-effective cloud solutions to our clients. Be part of a dynamic environment where your expertise in API management and cloud operations will drive significant enhancements in the efficiency and effectiveness of our customers' operations. As a Senior API Management Engineer on our team, you will play a pivotal role in the enterprise deployment of an enterprise API gateway, ensuring optimal performance, reliability, and advancement of our services.

Key Responsibilities:

  • Lead the deployment, configuration, and management of the customer's enterprise API gateway solution on an OpenShift environment.
  • Ensure high availability, performance, and scalability of API infrastructure.
  • Provide expert-level technical support to customers, resolving complex issues related to API management and cloud infrastructure.
  • Collaborate closely with engineering teams to enhance API consumption and integration across various applications.
  • Monitor and optimize API performance, identifying and addressing potential scalability and reliability issues.
  • Develop and maintain comprehensive documentation and best practices for API management and support.
  • Drive continuous improvement initiatives in API strategies and cloud operations.

What You'll Need

Education and Experience:

  • Bachelor's Degree in IT, Computer Science, or a related technical discipline.
  • 7+ years of experience in IT, with a strong emphasis on API management, cloud operations, and customer support.
  • Proven experience in deploying and managing Kong Enterprise API gateway or similar platforms.

Required Skills:

  • In-depth knowledge of enterprise API gateway solutions, preferably Kong and its integration in cloud and OpenShift environments.
  • Expertise in AWS cloud services and infrastructure management.
  • Advanced troubleshooting and problem-solving skills, particularly in API and cloud contexts.
  • Strong familiarity with Linux distributions (e.g., RedHat or similar Linux distributions).
  • Proficiency in DevSecOps practices, Agile/Scrum methodologies, and continuous integration tools (e.g., GitLab CI, Nexus, Habor).
  • Exceptional communication and collaboration skills, with the ability to lead and mentor junior team members.

Location: Company Site

US Citizenship Required

GDIT IS YOUR PLACE
At GDIT, the mission is our purpose, and our people are at the center of everything we do.
Growth: AI-powered career tool that identifies career steps and learning opportunities
Support: An internal mobility team focused on helping you achieve your career goals
Rewards: Comprehensive benefits and wellness packages, 401K with company match, and competitive pay and paid time off
Community: Award-winning culture of innovation and a military-friendly workplace
OWN YOUR OPPORTUNITY
Explore an enterprise IT career at GDIT and you'll find endless opportunities to grow alongside colleagues who share your desire to drive operations forward.

#RoverGSS

The likely salary range for this position is $123,250 - $166,750. This is not, however, a guarantee of compensation or salary. Rather, salary will be set based on experience, geographic location and possibly contractual requirements and could fall outside of this range.

Scheduled Weekly Hours:

40

Travel Required:

None

Telecommuting Options:

Onsite

Work Location:

USA VA Springfield

Additional Work Locations:

USA MO St. Louis

Total Rewards at GDIT:

Our benefits package for all US-based employees includes a variety of medical plan options, some with Health Savings Accounts, dental plan options, a vision plan, and a 401(k) plan offering the ability to contribute both pre and post-tax dollars up to the IRS annual limits and receive a company match. To encourage work/life balance, GDIT offers employees full flex work weeks where possible and a variety of paid time off plans, including vacation, sick and personal time, holidays, paid parental, military, bereavement and jury duty leave. To ensure our employees are able to protect their income, other offerings such as short and long-term disability benefits, life, accidental death and dismemberment, personal accident, critical illness and business travel and accident insurance are provided or available. We regularly review our Total Rewards package to ensure our offerings are competitive and reflect what our employees have told us they value most.

Our Identity Verification Process:

As part of the hiring process, we will ask you to complete an identity verification process that leverages advanced biometrics and artificial intelligence to ensure authenticity and protect against identity fraud. You are expected to be on camera during virtual interviews. We reserve the right to take your picture to verify your identity and prevent fraud. By proceeding, you authorize the collection, processing, and use of your biometric data for identity verification and security purposes.

About Our Work:

We are GDIT. A global technology and professional services company that delivers technology solutions and mission services to every major agency across the U.S. government, defense and intelligence community. Our 26,000 experts extract the power of technology to create immediate value and deliver solutions at the edge of innovation. We operate across 50+ countries worldwide, offering leading mission-ready capabilities in AI, cloud, cyber and software development.Join our Talent Community to stay up to date on our career opportunities and events at

gdit.com/tc.

Equal Opportunity Employer / Individuals with Disabilities / Protected Veterans

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About General Dynamics Information Technology

Sourced by ZipRecruiter

GDIT is a global technology and professional services company that delivers technology solutions and mission services to every major agency across the U.S. government, defense, and intelligence community. Its 30,000 experts extract the power of technology to create immediate value and deliver solutions at the edge of innovation. The company operates across 50+ countries worldwide, offering leading capabilities in digital modernization, AI/ML, cloud, cyber, and application development.

Industry

It services

Company size

10,000+ Employees

Headquarters location

Falls Church, VA, US