Senior Application Programmer
Salary$130k – $150k
LocationMcLean, Virginia, United States
Typefull-time
SenioritySenior
Experience10+ yrs
DepartmentDOW, AI & Emerging Technologies
Company size10,000+ people
PostedOct 2, 2026 · 1w ago
Verified live1d ago
At a glanceSummarised by Seekless from the posting.
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
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
US citizenship with the ability to obtain and maintain Secret Clearance
Skills
MuleSoft Anypoint Platform
Anypoint Studio
REST
SOAP
RAML
OpenAPI
JSON
XML
WSDL
CSV
DataWeave
SQL
Git
Jenkins
GitLab
ServiceNow
Postman
SoapUI
SonarQube
MUnit
SAP
AWS GovCloud
OAuth 2.0
JWT
PKI
Maven
Benefits
Health insurance
Dental insurance
Vision insurance
Retirement plan
Life insurance
Paid time off
Family leave
Short term disability
Long term disability
Training and development
Wellness resources
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:
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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.
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Develop data transformations, mappings, validation rules, and reusable integration components using DataWeave.
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Integrate enterprise applications with SAP, databases, cloud services, SaaS platforms, and other internal and external systems.
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Implement API security controls including OAuth 2.0, JWT, PKI, client authentication, and role-based access control.
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Design scalable and highly available solutions that support load balancing, resiliency, and enterprise performance requirements.
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Collaborate with architects, engineers, business analysts, cybersecurity teams, and stakeholders throughout the software development lifecycle.
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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
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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