Senior Application Programmer

Credence; McLean (VA); On-site; USD 140,000 - 180,000; Full time

Benefits offered by this job

Health Care Plan (Medical, Dental &amp

Retirement Plan (401k, IRA)

Life Insurance (Basic, Voluntary &

Paid Time Off (Vacation, Sick &

Family Leave (Maternity, Paternity)

Short Term & Long Term Disability

Training & Development

Wellness Resources

Job summary

Credence seeks a Senior Application Programmer to lead API design and integration efforts across enterprise systems. The role focuses on building secure, scalable APIs using MuleSoft, modernizing legacy interfaces, and supporting mission-critical applications in a government-ready environment.

The ideal candidate has 10+ years in software development, API integration, and experience with MuleSoft or similar middleware, plus strong leadership and Agile/DevSecOps expertise. U.S.

Qualifications

• Bachelor's degree in Computer Science, Information Technology, Engineering, or a related field.
• 10+ years of software development, API development, and enterprise integration experience.
• Experience designing, developing, testing, and deploying enterprise software solutions.
• Experience with MuleSoft or comparable middleware platforms and SAP integration.
• Familiarity with Agile methodologies and DevSecOps practices.
• Ability to lead technical efforts and mentor development teams.

Responsibilities

• Design, develop, test, deploy, and maintain enterprise APIs and integration solutions.
• Modernize legacy interfaces and data exchanges with secure, real-time API services.
• Develop API solutions using MuleSoft Anypoint Platform and related tools.
• Create and maintain API specifications using REST, SOAP, RAML, OpenAPI, JSON, and XML.
• Collaborate with architects, cybersecurity, and stakeholders across the SDLC.

Skills

API design

Technical leadership

Agile

DevSecOps

Mentoring

Education

Bachelor's degree in Computer Science or related field

Tools

MuleSoft Anypoint Platform

Anypoint Studio

OpenAPI / RAML / JSON / XML

DataWeave

Git / CI/CD tools

Job description

Overview

Join a team where innovation meets mission. Our AI, cloud, cyber, and modernization solutions save agencies thousands of hours, safeguard national security, and strengthen health and humanitarian missions worldwide. With 1,700+ team members, 1,500+ AI/data experts, and 100+ prime contracts, we deliver at scale and with purpose.

We’ve been recognized as a Top Workplace by the Washington Post for six straight years and named to the Inc. 5000 Fastest Growing Private Companies 13 of the past 14 years. Credence is a welcoming home for those looking to grow and contribute to positive change. We encourage all employees to expand beyond their boundaries, dive into important world-changing Federal challenges.

Position Summary

Credence has an immediate need for a Senior Application Programmer to support enterprise system modernization and API integration initiatives. This role serves as a technical lead responsible for designing, developing, implementing, and sustaining secure, scalable APIs and integration solutions using MuleSoft, SAP integration technologies, and modern DevSecOps practices.

The ideal candidate has extensive experience developing enterprise-grade APIs, integrating complex business systems, modernizing legacy interfaces, and supporting mission-critical applications in large-scale enterprise or government environments.

Responsibilities include, but are not limited to the duties listed below:

• Design, develop, test, deploy, and maintain enterprise APIs and integration solutions.
• Modernize legacy interfaces and data exchanges by implementing secure, reusable, and real-time API services.
• Develop API solutions using MuleSoft Anypoint Platform, Anypoint Studio, API Manager, and Runtime Manager.
• Create and maintain API specifications using REST, SOAP, RAML, OpenAPI, JSON, XML, and related technologies.
• Develop data transformations, mappings, validation rules, and reusable integration components using DataWeave.
• Integrate enterprise applications with SAP, databases, cloud services, SaaS platforms, and other internal and external systems.
• Implement API security controls including OAuth 2.0, JWT, PKI, client authentication, and role-based access control.
• Design scalable and highly available solutions that support load balancing, resiliency, and enterprise performance requirements.
• Collaborate with architects, engineers, business analysts, cybersecurity teams, and stakeholders throughout the software development lifecycle.
• Support CI/CD and DevSecOps practices using tools such as Jenkins, Git, GitLab, Maven, and Azure DevOps.
• Participate in Agile ceremonies, technical reviews, sprint planning, and solution design discussions.
• Troubleshoot production issues, resolve defects, and support software releases and deployments.
• Mentor junior developers and provide technical leadership across development teams.

• US citizenship with the ability to obtain and maintain Secret Clearance.
• Bachelor's degree in Computer Science, Information Systems, Engineering, Information Technology, or a related field.
• 10+ years of experience in software development, application programming, enterprise integration, or API development.
• Experience designing, developing, testing, and deploying enterprise software solutions.
• Experience developing APIs and integrations using MuleSoft or a comparable middleware platform.
• Experience integrating enterprise systems, databases, web services, and cloud-based applications.
• Experience working in Agile software development environments.
• Strong understanding of application architecture, software design principles, and system integration patterns.
• Demonstrated ability to lead technical efforts and mentor development teams.
• Relevant technical certification or equivalent professional experience.

Required Technical Skills

• MuleSoft Anypoint Platform and Anypoint Studio
• RESTful and SOAP Web Services
• RAML, OpenAPI, JSON, XML, WSDL, and CSV
• DataWeave and API integration frameworks
• SQL and relational database technologies
• API-led connectivity and enterprise integration patterns
• Git-based source control
• CI/CD and DevSecOps practices
• Agile software development methodologies
• Technical documentation and system design

Preferred Qualifications

• MuleSoft Certified Developer or MuleSoft Integration Architect certification
• Experience integrating SAP or other ERP platforms
• Experience modernizing legacy enterprise applications and interfaces
• Experience supporting federal government or highly regulated environments
• Experience with AWS GovCloud or secure cloud environments
• Experience with Jenkins, GitLab, Azure DevOps, Postman, SoapUI, SonarQube, or MUnit
• Understanding of RMF, ATO, STIG, PKI, and cybersecurity compliance requirements
• Experience building high-availability and disaster recovery solutions

• Health Care Plan (Medical, Dental & Vision)
• Retirement Plan (401k, IRA)
• Life Insurance (Basic, Voluntary & AD&D)
• Paid Time Off (Vacation, Sick & Public Holidays)
• Family Leave (Maternity, Paternity)
• Short Term & Long Term Disability
• Training & Development
• Wellness Resources