Senior Application Programmer

Posted 18 Days Ago
Be an Early Applicant
McLean, VA, USA
In-Office
130K-150K Annually
Senior level
Information Technology
The Role
Leads the design, development, deployment, and maintenance of secure enterprise APIs and integration solutions. Uses MuleSoft, SAP integration technologies, DataWeave, REST, SOAP, and API security controls to modernize legacy systems and connect enterprise applications, databases, cloud services, and SaaS platforms. Supports CI/CD and DevSecOps, troubleshoots production issues, participates in Agile delivery, and mentors junior developers while providing technical leadership.
Summary Generated by Built In

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 ServiceNow.
  • 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.

Requirements
  • 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, ServiceNow, Postman, SoapUI, SonarQube, or MUnit
  • Understanding of RMF, ATO, STIG, PKI, and cybersecurity compliance requirements
  • Experience building high-availability and disaster recovery solutions

Salary Range: $130,000-$150,000 annually. Actual compensation will be determined based on the selected candidate's experience, education, certifications, skills, and overall qualifications.


Benefits
  • 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

Skills Required

  • US citizenship and 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 applications
  • Experience working in Agile software development environments
  • Strong understanding of application architecture, software design principles, and system integration patterns
  • Ability to lead technical efforts and mentor development teams
  • Relevant technical certification or equivalent professional experience
  • 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

Credence Compensation & Benefits Highlights

The following summarizes recurring compensation and benefits themes identified from responses generated by popular LLMs to common candidate questions about Credence and has not been reviewed or approved by Credence.

  • Fair & Transparent Compensation — Pay is considered competitive or better than average across many roles, with multiple examples describing excellent pay and competitive salaries. Additional cash elements such as bonuses appear alongside base pay.
  • Healthcare Strength — Benefits include comprehensive medical, dental, and vision coverage, supported by HSAs/FSAs and a TRICARE supplement. Employer-paid life and disability coverage further strengthen the protection package.
  • Leave & Time Off Breadth — Time off includes flexible PTO and a broad holiday schedule aligned to federal holidays. Additional leave types such as military and bereavement leave are available.

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The Company
HQ: Vienna, VA
1,499 Employees

What We Do

Credence provides innovative technology, health, international development, engineering, and management solutions to support mission-critical programs for Federal government customers. We are one of the nation’s largest privately held government contractors. Our ability to perform exceptionally to implement new solutions, efficiencies, and savings across 220 U.S. Government programs is due to our obsession with exceeding customer expectations and our emphasis on employee wellbeing—best exemplified by our corporate philosophy: “One Measure of Success. Yours.” WHY WORK WITH CREDENCE? We are consistently rated as a Top Workplace and are proud to be one of the fastest growing privately held firms in the U.S. over the last decade. Credence treats each customer, teaming partner, and employee as a trusted partner whom we serve. We ensure successful outcomes by focusing on the measure of success that we consider to be most important—Yours. WHY WORK FOR CREDENCE? We are a diverse, enthusiastic team of professionals who are dedicated to providing exceptional service to our customers. Our culture is focused on employee empowerment, recognition, and reward, and each person is encouraged to take initiative and strive to reach their greatest potential. HOW CREDENCE GIVES BACK: We believe in giving back to the communities in which we live and work through corporate charitable events, support for employee volunteering, and a 100% corporate match for employee charitable giving.

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