Drive best practices in API design, versioning, and performance optimization. Cloud & DevOps Enablement * Architect and deploy applications in AWS and Azure, leveraging serverless and containerized ...
Drive best practices in API design, versioning, and performance optimization. Cloud & DevOps Enablement * Architect and deploy applications in AWS and Azure, leveraging serverless and containerized ...
Bachelor's degree in Chemistry, Biochemistry, Pharmacy, Chemical Engineering or related scientific ... Strong understanding of API manufacturing processes, analytical techniques, and quality control ...
Bachelor's degree in Chemistry, Biochemistry, Pharmacy, Chemical Engineering or related scientific ... Strong understanding of API manufacturing processes, analytical techniques, and quality control ...
Senior Java Developer
Indianapolis, IN · On-site
$65/hr
JOB SUMMARY Experienced Java developer with expertise in Spring Boot, REST API development, batch processing, event-driven queue processing, MuleSoft integration, and document generation tools. Key ...
Senior Java Developer
Indianapolis, IN · On-site
$65/hr
JOB SUMMARY Experienced Java developer with expertise in Spring Boot, REST API development, batch processing, event-driven queue processing, MuleSoft integration, and document generation tools. Key ...
Bachelor's degree in Chemistry, Biochemistry, Pharmacy, Chemical Engineering or related scientific ... Strong understanding of API manufacturing processes, analytical techniques, and quality control ...
Bachelor's degree in Chemistry, Biochemistry, Pharmacy, Chemical Engineering or related scientific ... Strong understanding of API manufacturing processes, analytical techniques, and quality control ...
Java Developer
Indianapolis, IN · On-site
$48.75 - $63/hr
... engineering and systems integration. Our tightly integrated offerings are tailored to each clients ... Need Expert with Java, Spring, JMS, ActiveMQ API Design REST principles, JSON Unit testing Good ...
Java Developer
Indianapolis, IN · On-site
$48.75 - $63/hr
... engineering and systems integration. Our tightly integrated offerings are tailored to each clients ... Need Expert with Java, Spring, JMS, ActiveMQ API Design REST principles, JSON Unit testing Good ...
Sr. Web Application Developer
Indianapolis, IN · On-site
$57.65/hr
Drive best practices in API design, versioning, and performance optimization. * Architect and ... Mentor developers across multiple technology stacks, lead code reviews, architecture reviews, and ...
Quick apply
Sr. Web Application Developer
Indianapolis, IN · On-site
$57.65/hr
Drive best practices in API design, versioning, and performance optimization. * Architect and ... Mentor developers across multiple technology stacks, lead code reviews, architecture reviews, and ...
Application Developer Intern
Indianapolis, IN · On-site
$48K - $86K/yr
You will gain exposure to modern cloud technologies, including Amazon Connect, AWS Lambda, API ... Collaborate with developers, architects, testers, and business analysts on project tasks.
Application Developer Intern
Indianapolis, IN · On-site
$48K - $86K/yr
You will gain exposure to modern cloud technologies, including Amazon Connect, AWS Lambda, API ... Collaborate with developers, architects, testers, and business analysts on project tasks.
Application Developer Intern
Indianapolis, IN · On-site
$48K - $86K/yr
You will gain exposure to modern cloud technologies, including Amazon Connect, AWS Lambda, API ... Collaborate with developers, architects, testers, and business analysts on project tasks.
Application Developer Intern
Indianapolis, IN · On-site
$48K - $86K/yr
You will gain exposure to modern cloud technologies, including Amazon Connect, AWS Lambda, API ... Collaborate with developers, architects, testers, and business analysts on project tasks.
SAP DevOps Lead
Indianapolis, IN · On-site
$126 - $224.40/hr
Evaluate and govern BTP API exposure for AI-based use cases, including AI Anomaly Detection and LLM ... Provide technical direction for contractor developers across multiple vendors. * Engage with ...
SAP DevOps Lead
Indianapolis, IN · On-site
$126 - $224.40/hr
Evaluate and govern BTP API exposure for AI-based use cases, including AI Anomaly Detection and LLM ... Provide technical direction for contractor developers across multiple vendors. * Engage with ...
Playwright (UI test automation) + API automation/testing Likely responsibilities : building ... Quality Engineer to drive quality assurance strategy for enterprise EDI and API integration ...
Playwright (UI test automation) + API automation/testing Likely responsibilities : building ... Quality Engineer to drive quality assurance strategy for enterprise EDI and API integration ...
S. in Engineering and experience in Automation Engineering, preferably in Small Molecule API manufacturing. A minimum of 2 + years working experience in Biopharma engineering, operations, or ...
S. in Engineering and experience in Automation Engineering, preferably in Small Molecule API manufacturing. A minimum of 2 + years working experience in Biopharma engineering, operations, or ...
S. in Engineering and experience in Automation Engineering, preferably in Small Molecule API manufacturing. • A minimum of 2 + years working experience in Biopharma engineering, operations, or ...
S. in Engineering and experience in Automation Engineering, preferably in Small Molecule API manufacturing. • A minimum of 2 + years working experience in Biopharma engineering, operations, or ...
IN-DCS-Senior Java Developer
Indianapolis, IN · On-site
$50.25 - $64/hr
Spark Tek Inc is seeking an experienced Java developer with expertise in Spring Boot and REST API development. The role involves designing and executing batch processes, implementing event-driven ...
IN-DCS-Senior Java Developer
Indianapolis, IN · On-site
$50.25 - $64/hr
Spark Tek Inc is seeking an experienced Java developer with expertise in Spring Boot and REST API development. The role involves designing and executing batch processes, implementing event-driven ...
SAP DevOps Lead
Indianapolis, IN · On-site
Evaluate and govern BTP API exposure for AI-based use cases, including AI Anomaly Detection and LLM ... Provide technical direction for contractor developers across multiple vendors. * Engage with ...
SAP DevOps Lead
Indianapolis, IN · On-site
Evaluate and govern BTP API exposure for AI-based use cases, including AI Anomaly Detection and LLM ... Provide technical direction for contractor developers across multiple vendors. * Engage with ...
Lead NetSuite Developer
Merrillville, IN · On-site
$58 - $75.75/hr
Extensive experience with API design and development. * Proven leadership skills with the ability to manage and mentor a team of developers. * Excellent problem-solving skills and attention to detail
Lead NetSuite Developer
Merrillville, IN · On-site
$58 - $75.75/hr
Extensive experience with API design and development. * Proven leadership skills with the ability to manage and mentor a team of developers. * Excellent problem-solving skills and attention to detail
.Net Developer
Carmel, IN · On-site
$45.75 - $60.50/hr
Net developer for 6-month contract position with a minimum of 7 years of experience in software ... NET, MVC 5, Entity Framework 6, CSS, SQL Server 2018, WEB API, JavaScript, jQuery, Bootstrap, and ...
.Net Developer
Carmel, IN · On-site
$45.75 - $60.50/hr
Net developer for 6-month contract position with a minimum of 7 years of experience in software ... NET, MVC 5, Entity Framework 6, CSS, SQL Server 2018, WEB API, JavaScript, jQuery, Bootstrap, and ...
Engineer - Automation Engineering - Small Molecule API- Lilly Medicine Foundry
Indianapolis, IN · On-site
S. in Engineering and experience in Automation Engineering, preferably in Small Molecule API manufacturing. A minimum of 2 + years working experience in Biopharma engineering, operations, or ...
Engineer - Automation Engineering - Small Molecule API- Lilly Medicine Foundry
Indianapolis, IN · On-site
S. in Engineering and experience in Automation Engineering, preferably in Small Molecule API manufacturing. A minimum of 2 + years working experience in Biopharma engineering, operations, or ...
Integration Engineer II
$99K - $133K/yr
AI & Engineering leverages cutting-edge engineering capabilities to build, deploy, and operate ... Implement API security (OAuth2, JWT, API keys), versioning, rate limiting, and robust error ...
Integration Engineer II
$99K - $133K/yr
AI & Engineering leverages cutting-edge engineering capabilities to build, deploy, and operate ... Implement API security (OAuth2, JWT, API keys), versioning, rate limiting, and robust error ...
Site Reliability Engineer
$54.50 - $72.50/hr
Provide SRE production support for Mainframe applications, APIs, Web Services, and Microservices ... Support API modernization initiatives, including SOAP-to-REST migrations, API onboarding ...
Site Reliability Engineer
$54.50 - $72.50/hr
Provide SRE production support for Mainframe applications, APIs, Web Services, and Microservices ... Support API modernization initiatives, including SOAP-to-REST migrations, API onboarding ...
Lead NetSuite Developer
Merrillville, IN · On-site
$58 - $75.75/hr
Extensive experience with API design and development. * Proven leadership skills with the ability to manage and mentor a team of developers. * Excellent problem-solving skills and attention to detail
Lead NetSuite Developer
Merrillville, IN · On-site
$58 - $75.75/hr
Extensive experience with API design and development. * Proven leadership skills with the ability to manage and mentor a team of developers. * Excellent problem-solving skills and attention to detail
Api Developer information
See Indiana salary details
$10.06 - $15.89
1% of jobs
$15.89 - $21.71
0% of jobs
$21.71 - $27.53
0% of jobs
$27.53 - $33.35
0% of jobs
$33.35 - $39.18
3% of jobs
$39.18 - $45
5% of jobs
$45 - $50.82
11% of jobs
$51.79 is the 25th percentile. Wages below this are outliers.
$50.82 - $56.64
25% of jobs
The median wage is $57.54 / hr.
$56.64 - $62.47
27% of jobs
$63.08 is the 75th percentile. Wages above this are outliers.
$62.47 - $68.29
20% of jobs
$68.29 - $74.11
7% of jobs
$10
$56
$74
How much do api developer jobs pay per hour?
How much does an API developer make?
What does a typical workday look like for an API developer?
A typical workday for an API Developer involves designing, coding, and testing APIs to ensure they meet business requirements and function optimally. You’ll frequently troubleshoot integration issues, review code for security and performance, and collaborate closely with front-end, back-end, and product teams to address evolving project needs. Daily tasks may include updating API documentation, participating in agile sprint meetings, and responding to technical support queries from other developers or partners. The work environment is often dynamic and collaborative, with a strong emphasis on continuous learning and adapting to new technologies.
Are API developers in demand?
What does an API developer do?
An API Developer is responsible for designing, building, and maintaining application programming interfaces (APIs) that enable software applications to communicate with each other. They ensure APIs are secure, scalable, and efficient, often working with technologies like REST, GraphQL, and SOAP. API Developers collaborate with front-end and back-end teams to integrate systems and improve functionality. Their role also involves debugging, optimizing performance, and documenting API usage.
What are the key skills and qualifications needed to thrive as an API developer?
To thrive as an API Developer, you need strong programming skills in languages like JavaScript, Python, or Java, as well as a solid understanding of RESTful and SOAP API protocols. Proficiency with tools such as Postman, Swagger, and familiarity with API security, cloud platforms, and relevant certifications (like AWS Certified Developer) are commonly required. Excellent problem-solving abilities, attention to detail, and clear communication skills help you collaborate effectively and navigate complex development challenges. These capabilities are crucial for building reliable, scalable APIs that enable seamless integration between diverse systems and deliver value to users and teams.

Leidos rating
8.3
Based on 151 frontline employees who took The Breakroom Quiz
77th of 485 rated business services
Job description
The ideal candidate brings 8+ years of experience building scalable web applications, combined with hands-on experience incorporating AI/ML capabilities (e.g., generative AI, APIs, or data-driven models) into production systems. This individual will act as a trusted advisor to clients, shaping technical direction while leading engineering teams to deliver innovative, secure, and high-performing solutions.
Primary Responsibilities
Full-Stack Architecture & Technical Leadership
- Lead the architecture, design, and development of modern web applications across a diverse technology stack, including .NET/C#, Node.js, and front-end frameworks (React, Angular, Vue).
- Design and implement scalable, cloud-native solutions using microservices and serverless architectures.
- Establish and enforce engineering best practices, coding standards, and architectural patterns across teams.
AI/ML Integration & Intelligent Solutions
- Design and implement AI-enabled application features, such as:
- Integration with LLMs and AI APIs (e.g., Azure OpenAI, AWS Bedrock, or similar platforms)
- Intelligent search, summarization, recommendation systems, or automation workflows
- Collaborate with stakeholders to identify opportunities where AI can enhance user experience, decision-making, or operational efficiency.
- Ensure responsible and secure use of AI technologies, including data privacy, governance, and model evaluation.
Client Engagement & Technical Strategy
- Serve as a primary technical interface to clients, translating business needs into scalable technical solutions.
- Lead solutioning sessions, architecture discussions, and technical briefings with stakeholders.
- Provide strategic guidance on modern web technologies, cloud adoption, and AI integration.
- Build strong client relationships as a trusted technical advisor.
Advanced Web Application & API Development
- Oversee development of secure, high-performance web applications and RESTful APIs.
- Ensure interoperability and cross-platform integration across systems.
- Drive best practices in API design, versioning, and performance optimization.
Cloud & DevOps Enablement
- Architect and deploy applications in AWS and Azure, leveraging serverless and containerized services.
- Lead CI/CD pipeline implementation and DevSecOps practices.
- Optimize systems for scalability, reliability, and cost efficiency in cloud environments.
Team Leadership & Mentorship
- Mentor developers across multiple technology stacks, not limited to .NET.
- Lead code reviews, architecture reviews, and technical decision-making.
- Foster a culture of innovation, continuous learning, and engineering excellence.
Security, Performance & Quality
- Ensure applications meet modern security standards, including secure API design and cloud security best practices.
- Implement comprehensive testing strategies and performance monitoring.
- Continuously improve system resilience, scalability, and maintainability.
UI/UX & Modern Web Practices
- Collaborate with UI/UX teams to deliver responsive, accessible, and user-centric applications.
- Drive adoption of modern front-end architecture and performance optimization techniques.
Innovation & Continuous Improvement
- Stay current with emerging web and AI technologies, evaluating their applicability to client missions.
- Introduce new tools, frameworks, and AI capabilities to improve delivery and innovation.
Basic Qualifications
- Must be able to obtain a Public Trust prior to starting (US Citizenship Required).
- Bachelor's or Master's degree in Computer Science, Information Technology, or related field (or equivalent experience).
- 8+ years of experience in full-stack web application development, including .NET/C# and modern JavaScript frameworks.
- Demonstrated experience working across multiple web technologies beyond .NET (e.g., Node.js, Python, or similar).
- Strong hands-on experience with T-SQL, including writing and optimizing SQL queries, stored procedures, triggers, functions, and other database objects.
- Demonstrated commitment to built-in quality, including developing reliable, maintainable, and well-tested solutions that meet performance, security, and coding standards.
- Ability to follow development best practices, conduct code reviews, troubleshoot issues, and ensure deliverables meet quality expectations throughout the development lifecycle.
- Hands-on experience integrating or developing AI/ML capabilities, such as:
- Working with AI APIs (Azure OpenAI, AWS Bedrock, etc.)
- Implementing data-driven or intelligent application features
- Strong experience with AWS and/or Azure cloud platforms, including serverless architectures.
- Deep understanding of web architecture, microservices, and RESTful API design.
- Experience with SQL and NoSQL databases.
- Proven ability to lead teams and engage directly with clients.
- Strong communication skills with the ability to bridge business needs and technical solutions.
- Knowledge of secure application development and cloud security practices.
Preferred Qualifications
- Certifications in AWS, Azure, or AI/ML-related technologies.
- Experience building or integrating generative AI solutions in production environments.
- Familiarity with Python for AI/ML workflows.
- Experience with DevSecOps, CI/CD pipelines, and automation tools.
- Prior experience in client-facing technical leadership roles within complex or mission-driven environments.
AppMod
If you're looking for comfort, keep scrolling. At Leidos, we outthink, outbuild, and outpace the status quo - because the mission demands it. We're not hiring followers. We're recruiting the ones who disrupt, provoke, and refuse to fail. Step 10 is ancient history. We're already at step 30 - and moving faster than anyone else dares.
Original Posting:
June 16, 2026
For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above.
Pay Range:
Pay Range $107,900.00 - $195,050.00
The Leidos pay range for this job level is a general guideline only and not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.
About Leidos
Sourced by ZipRecruiter
At Leidos, we deliver innovative solutions through the efforts of our diverse and talented people who are dedicated to our customers' success. We empower our teams, contribute to our communities, and operate sustainable practices. Everything we do is built on a commitment to do the right thing for our customers, our people, and our community.
Industry
It services
Company size
10,000+ Employees
Headquarters location
Reston, VA, US