Senior Application Developer
Green Key Resources
Job DetailExperience Level Sr LevelDegree Type Bachelor of Science (BS)Employment Full TimeWorking Type On SiteJob Reference 0000020519Salary Type AnnuallyIndustry ConstructionSelling Points Lead impactful modernization projects for enterprise applications in a dynamic environment. Collaborate with stakeholders to drive innovation and long-term system improvements. Enjoy comprehensive benefits and professional growth opportunities.Job DescriptionSenior Application Developer OverviewThe Senior Application Developer ensures stability, support, and modernization of enterprise applications critical to business operations.Serve as the primary technical owner for legacy systems built on the Microsoft stack.Collaborate with IT leadership, stakeholders, and vendors to maintain and improve application platforms.Balance immediate support needs with long-term modernization goals and system upgrades.Contribute to decisions regarding system architecture, refactoring, and potential replacements.Work in a high-performance environment requiring flexibility and commitment to project deadlines.Opportunity to work on-site in a professional office and dynamic construction environments.Comprehensive benefits package including health, retirement plans, and professional development support.Senior Application Developer Key Responsibilities & DutiesMaintain, troubleshoot, and enhance legacy applications to ensure stability and performance.Analyze and reverse-engineer systems to understand business logic and integrations.Design and implement improvements to application architecture and database design.Write and optimize complex T-SQL queries, stored procedures, and database objects.Develop new functionality using C#, .NET, JavaScript, and related technologies.Support IIS-hosted applications, including deployment and configuration.Contribute to modernization efforts, including cloud migration and system upgrades.Document system behavior and dependencies to improve long-term supportability.Collaborate with stakeholders to translate workflows into technical solutions.Senior Application Developer Job RequirementsBachelor’s degree in Computer Science, Software Engineering, or related field.6+ years of experience with Microsoft ecosystem applications (C#, VB.NET, SQL Server).Strong experience with .NET Framework applications and IIS-hosted environments.Proficiency in HTML, CSS, JavaScript, and troubleshooting complex codebases.Preferred experience modernizing legacy applications and migrating to Azure or AWS.Familiarity with Git, Azure DevOps, and CI/CD pipelines.Experience with low-code platforms like Mendix or PowerApps is a plus.Ability to work independently and manage technical solutions effectively.
$65k - $170k
The Senior Application Developer is responsible for ensuring the stability, support, and continuous modernization of critical enterprise applications that underpin core business operations. This role will serve as the primary technical owner of a mission-critical legacy...SeniorFull timeTemporary workWork at officeImmediate start$120k - $190k
OverviewAs a Steampunk Senior Salesforce Application Developer, you will work with Technical/Solutions Architects and Business Analysts to translate business requirements into well‐architected solutions that best leverage the Salesforce platform. Develop, test, document...SeniorWork experience placement- ...by using our proven customer-centric, value-driven business practices and service delivery methodologies. As an Senior Appian Application Developer who is passionate about delivering value to your customers, you will be working closely with an equally...SeniorRemote work
- ...Job Description Job Description Job Title: Senior Application Developer (NOAA/AWIPS) Company: BLN24 About Us: We find strength in teamwork-a better you is a better us BLN24 is an award-winning Management Consulting Firm that supports the U.S. Federal...SeniorRemote work
- ...our proven customer-centric, value-driven business practices and service delivery methodologies. Nüvitek is seeking a Senior Application Developer to provide senior-level software development, application sustainment, integration, and technical leadership for...Senior
$131k - $218.3k
...-business solutions.Work You’ll DoAs a Senior Consultant, Technical Transformation on... ...hosted ServiceNow environmentDevelop scoped applications and configure platform components,... ...clearance required3+ years of experience developing scoped applications within the...SeniorLocal area$125k - $140k
MicroHealth is seeking an experienced Senior SQL Application Developer with strong expertise in SQL, database administration, Linux environments, database migration, and reporting solutions. This role provides advanced technical support for the program, serving as the...SeniorFull timeDay shift$100k - $150k
...Required:ICAgile Certified or Certified Scrum MasterServiceNow Certified System Administrator2+ Implementation Specialist and/or Application Developer CertificationsCompTIA Security (as applicable) Salary Range: $100,000-$150,000We will accept applications for this position...SeniorFull timeLocal areaRemote workWorldwide$75.2k - $158.1k
Job Title: Senior Application DeveloperJob Category: Information TechnologyTime Type: Full timeMinimum Clearance Required to Start: TS/SCI... ...intelligence decisions. Set the technical bar for a team of developers working across cloud-native architectures and large-scale data...SeniorContract workWork experience placementFlexible hours$86.8k - $198k
Application Developer, SeniorThe Opportunity:At a certain point, experience-based system design can start to look like clairvoyance. When you’ve developed so many systems that you can not only orchestrate the best solution for any technology-based challenge, but you can...SeniorFull timeContract workPart timeWork at officeLocal areaRemote work$140k - $155k
...trusted results to enable national security missions worldwide.Job DescriptionOverview:SOSi is seeking a highly qualified Senior Application Developer to join our team on site in Fort Belvoir, VA, in support of our government customer. In this role, the Senior...SeniorWork at officeWorldwideMonday to Friday- Job DescriptionWe have an Immediate opening for Salesforce Developer role in McLean - VA.Position: Salesforce DeveloperLocation: McLean - VADuration: Full Time JobJob Description:Experience in SalesForce (SFDC) CRM with end to end implementation experience.SalesForce.com...SeniorFull timeImmediate startFlexible hours
$120k - $175k
OverviewSteampunk is looking for a Senior ServiceNow Developer to support one of our federal customers. This leader will help lead the effort... ...Drives development of business process into Service Now applications to create self service catalog improvements.Develops solutions...Senior- ...delivery of an entire piece of a system or application, and serve as a technical lead on medium... ....Work closely with other engineers to develop the best technical design and approach... ...metrics.Operate as a software leader and as a senior level individual contributor....SeniorWorldwide
- ...motivated candidate to join our talented Team. Job Title: Senior Salesforce Developer Location: Mclean, VA Overview: Looking for someone experienced with APEX, VisualForce, SOQL, Lightning application development, Lightning web components, Developer Console, Salesforce...Senior
$116.35k - $210.33k
Leidos is seeking a Sr. Maximo Application Suite 9 (MAS 9) Developer/Administrator to join an established team supporting a cloud hosted enterprise MAS 9 implementation for multiple programs supporting DHS and TSA. In this role, you’ll work collaboratively to maintain and...SeniorFull timeRemote workShift workAfternoon shift- Job Family:SAAS/PAAS/Cloud Application DevelopmentTravel Required:NoneClearance Required:Ability to Obtain SecretWhat You Will Do:Guidehouse has an exciting opportunity for Salesforce Developers in a high-growth practice. You will be a key contributor on the consulting...SeniorFull timeFlexible hours
- ...then consider a career in Advisory.KPMG is currently seeking a Senior Specialist to join our Federal Advisory practice.Responsibilities... ...offered salary is determined based on relevant factors such as applicant's skills, job responsibilities, prior relevant experience,...SeniorLocal area
$116.2k - $229.1k
...ends on 07/17/2026. Work you'll do As a Senior Consultant on the Moveworks team, you will... ...& Technology Offering is dedicated to developing leading global HR strategies and implementing... ..., including hands-on work with application programming interfaces (APIs), Representational...SeniorLocal area- ...Security department is seeking highly motivated engineers to develop and secure next-generation embedded systems supporting missions... ...equivalent combination of related education and work experience. Applicants selected for this position will be subject to a US government...SeniorWork experience placementInternshipLocal areaImmediate start
- Position: Dynamics Power Platform Developer Senior Level Location: Arlington, VAJob Id: 243... ...Are you passionate about building secure, scalable business applications that make a real impact in the federal space? We’re looking...SeniorPermanent employmentH1bVisa sponsorship
- Data Intelligence is seeking a SME Web Application Developer — Data Visualization to lead the development of visualization software that presents information from target systems within a proprietary data model. You will design, test, and deploy robust web-based software...Senior
- Job Summary: The Senior Application Developer / Maintenance Engineer leads the correction of defects, application enhancements, report development, code maintenance, and release implementation activities. This role supports ongoing application operations and maintenance...Senior
- ...to delivering value in the government contracting space. The following role is contingent upon award. The TRIRIGA Senior Application Developer is responsible for system updates, patching, performance tuning, and configuration changes. The Application Developer supports...SeniorFor contractors
$113.4k - $156.7k
Senior OpenText Documentum Application Developer Position Description CGI is seeking a Senior OpenText Documentum Application Developer to support the design, development, enhancement, and maintenance of enterprise content management solutions in a cloud based environment...SeniorLocal area$160k - $230k
...clients are Fortune 500 household names with billions of dollars in revenues. The Opportunity We're searching for a Senior AWS Application Developer skilled in Python and Java who brings a wealth of knowledge in AWS services and has hands-on experience in developing...SeniorFull timeWorldwideFlexible hours- Overview GLOSYS strives to develop sustainable relationships based on mutual trust, responsiveness and accountability. While GLOSYS continues to expand the infrastructure and resources available to our clients, we remain nimble in our approach to customer service and the...Senior
- ...tackle their most complex challenges with integrity, respect, responsibility, and professionalism.V2X is seeking a Senior Data Analytics/Application Developer to provide data analytics and application development support services to the Navy International Programs Office...SeniorWork at office
- ...Senior Applications Developer (Operations & Support) Federal Reserve Board | Washington, DC (On-site with Situational Telework) Company: Diverse Agile Solutions (DAS) Employment Type: Full-Time Consultant Work Location: Washington, DC (Federal Reserve Board...SeniorFull timeFor contractorsWork at officeRemote work
- A global IT consulting firm is seeking an experienced ServiceNow Developer to create and manage workflows and interfaces. The ideal candidate has 5-7 years of experience in ServiceNow development, strong organizational and communication skills, and a solid understanding...Senior
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