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Added 3 mins ago
Financial Manager - SES - Tysons, VA
M.C. Dean, Inc
Tysons, VA
…Tysons, Virginia, and employs more than 5,800 professionals who engineer and deploy automated, secure, and resilient power and technology systems; and deliver the management platforms…
Added 3 mins ago
Telecommunications Engineer 4 - Tysons, VA
M.C. Dean, Inc
Tysons, VA
We are seeking a Telecommunications Engineer 4 to join our Security and Electronic Systems (SES) business Unit. As part of (SES) Strategic Business Unit you will be part of a team that…
Added 3 mins ago
Telecommunications Specialist 4 (Technical Specialist 4) - Tysons, VA
M.C. Dean, Inc
Tysons, VA
…engineering deliverables before they go to the project's lead engineer for Government submittal. The specialist is a primary technical interface to the Government program office, base…
Added 4 mins ago
AL
Senior Data Engineer
Absentia Labs
San Francisco, CA · Boston, MA · New York City, NY · Seattle, WA · San Jose, CA · Austin, TX
- $125,000 to $160,000 USD / year
As a Senior Data Engineer, you will own the design and evolution of Absentia Labs’ biomedical data platform. You will operate with a high degree of autonomy, making long-horizon…
Added 6 mins ago
Project Director Transportation
Arcadis
Irvine
This role is accountable for project performance across key areas including schedule, budget, quality, health and safety, client satisfaction, risk management, and team performance. The…
Added 6 mins ago
Program Manager
Arcadis
Chicago
…candidate will coordinate multidisciplinary teams, manage project performance, and provide consistent reporting across their assigned…
Added 7 mins ago
Mechanical Engineer, Insource Manufacturing (Starlink)
SpaceX
Bastrop, TX
Uptime Optimization: Monitor and track equipment performance metrics using data analytics; identify bottlenecks and downtime causes, then implement preventive and predictive maintenance…
Added 8 mins ago
CB
Senior Data Engineer
Commercial Bank of California
United States
- $135,000 to $170,000 USD / year
…stakeholders. This role emphasizes data reliability, governance, and performance at scale, supporting both operational and strategic…
Added 13 mins ago
Applications Support Sr Analyst
Citibank, N.A.
United States
The Observability Engineer will support the organization's observability transformation initiatives by helping onboard applications to modern observability platforms and OpenTelemetry…
Added 13 mins ago
DO
Senior Systems Administrator - Hybrid Telework
Department of State Hospitals
CA
- $8,625 to $11,557 USD / month
A hands-on cloud or systems engineer who thrives in complex environments
Added 15 mins ago
Platform Engineer (TS/SCI CI Poly)
Seamless Migration
Reston · Alexandria · Washington · Colorado Springs
Seamless Migration is seeking a career and customer-oriented Platform Engineer to join our team.
Added 17 mins ago
Industry Solutions Engineer, Splunk - Energy and Utilities
Cisco
Chicago, IL
Join a team of Splunk Solutions Engineers! The Energy and Utilities Industry Solutions Engineer leads targeted, business-outcomes. Accelerates GTM by developing repeatable use cases and the…
Added 18 mins ago
Recruiting Coordinator
Fortastra Corporation
Torrance, CA
…process for candidates and hiring teams, and providing critical operational support to our Technical Recruiters and People…
Added 18 mins ago
Data Protection Engineer
Koniag Government Services
Washington, DC
…experienced, motivated, and customer-oriented Data Protection Engineer to join our team supporting a critical enterprise data protection environment. The ideal candidate is a skilled…
Added 18 mins ago
Network Engineer
Koniag Government Services
Washington, DC · Arlington, VA
Koniag IT Systems LLC, a Koniag Government Services company, is seeking a Network Engineer to support KITS and our government customer in Washington, DC. This position requires daily…
Added 18 mins ago
Data Protection Engineer (Lakewood, CO)
Koniag Government Services
Lakewood, CO
…experienced, motivated, and customer-oriented Data Protection Engineer to join our team supporting a critical enterprise data protection environment. The ideal candidate is a skilled…
Added 18 mins ago
Hyperconverged Infrastructure Engineer
Koniag Government Services
Lakewood, CO
…motivated, and customer-oriented Hyperconverged Infrastructure Engineer to join our team supporting an enterprise data center environment hosting 3,000+ virtual machines. The ideal…
Added 18 mins ago
Hyperconverged Infrastructure Engineer
Koniag Government Services
Washington, DC
…motivated, and customer-oriented Hyperconverged Infrastructure Engineer to join our team supporting an enterprise data center environment hosting 3,000+ virtual machines. The ideal…
Added 18 mins ago
VTC Engineer
Koniag Government Services
Huntsville, AL
Koniag Information Technology Systems (KITS), a Koniag Government Services company, is seeking a VTC Engineer with a secret clearance to support our Army customer in Alabama. This position…
Added 18 mins ago
API Integration Engineer
Koniag Government Services
Washington, DC
Tuknik Government Services, LLC, a Koniag Government Services company, is seeking an API Integration Engineer with a Secret security clearance to support TGS in supporting our government…
Added 18 mins ago
QA Automation Performance Engineer
Koniag Government Services
Washington, DC
Tuknik Government Services, LLC, a Koniag Government Services company, is seeking a QA Automation Performance Engineer with a Secret security clearance to support TGS in supporting our…
Added 18 mins ago
Cloud Platform Engineer IL6/cArmy
Koniag Government Services
Washington, DC
Execute platform readiness, failover, backup/restore, recovery, performance, and operational-acceptance testing.
Added 18 mins ago
Senior Systems Administrator
Koniag Government Services
Fort Belvoir, VA
Engineer and troubleshoot complex VMware/ESX virtual infrastructures, resource utilization, failover, and availability.
Added 18 mins ago
Java/.net Modernization Engineer
Koniag Government Services
Washington, DC
Tuknik Government Services, LLC, a Koniag Government Services company, is seeking a Java/.net Modernization Engineer with a Secret security clearance to support TGS in supporting our…
Added 18 mins ago
QA Test Engineer
Koniag Government Services
Washington, DC
Tuknik Government Services, LLC, a Koniag Government Services company, is seeking a QA Test Engineer with a Secret security clearance to support TGS in supporting our government customer in…

Koniag Government Services

Java/.net Modernization Engineer

Washington, DC, United States

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Job details

Posting language: English
Posted: Oct 29, 2026

Original job description

Tuknik Government Services, LLC, a Koniag Government Services company, is seeking a Java/.net Modernization Engineer with a Secret security clearance to support TGS in supporting our government customer in the DC Metro area. This position is for a Future New Business Opportunity.

Benefits include medical, dental, and vision insurance, 401(k) retirement plan, paid time off, paid parental leave, life and disability insurance, flexible spending accounts, commuter benefits and tuition reimbursement.

Tuknik Government Services, LLC, Koniag Government Services (KGS) is seeking qualified candidates for this role supporting our U.S. Army customer on a large-scale Army contracting systems modernization and automation program. Analyzes and decouples legacy Java and .NET components supporting solution integrations. The engineer preserves required behavior and interfaces while helping the team retain, wrap, refactor, replace, or retire each component through controlled migration waves. This is a contingent recruiting profile; the opening, employing subsidiary, compensation, work location, and staffing remain subject to final contract authorization.

Essential Functions, Responsibilities & Duties may include, but are not limited to:

Inventory legacy Java and .NET applications, services, libraries, jobs, interfaces, dependencies, configurations, and operational procedures.
Trace business rules, calculations, transformations, data access, authentication, error handling, and external dependencies in legacy code.
Recommend retain, wrap, refactor, replace, or retire dispositions based on mission need, security, supportability, performance, and lifecycle cost.
Develop API facades and compatibility adapters that preserve external contracts while target Appian capabilities transition.
Refactor approved services into modular, testable components or bounded external services where Appian-native implementation is not appropriate.
Eliminate unsupported libraries, embedded credentials, obsolete protocols, and high-risk custom code through approved designs.
Create unit, integration, contract, regression, and security tests that compare modernized behavior with the legacy baseline.
Support data migration, parallel operation, deployment, cutover, rollback, stabilization, and legacy retirement.
Package code through the approved DevSecOps pipeline and resolve code-quality, dependency, vulnerability, and licensing findings.
Maintain technical designs, interface specifications, dependency maps, release notes, and operational documentation.

Education and Experience Required:

Bachelor's degree in computer science, engineering, information systems, or a related field; additional relevant experience may substitute for education.
Five or more years of enterprise software engineering experience using Java, .NET/C#, or both.
Experience modernizing legacy applications, decomposing tightly coupled services, and preserving APIs, business rules, and data behavior.
Experience with relational databases, REST/SOAP services, secure coding, automated testing, CI/CD, and production troubleshooting.
U.S. citizenship and the active security clearance or eligibility required for the assigned work by the start of performance, with ongoing eligibility thereafter.
Ability to communicate clearly with Government, technical, and business stakeholders and to maintain accurate work records in approved systems.
Ability to protect Controlled Unclassified Information and classified information, when assigned, and comply with required access, training, and handling procedures.

Education and Experience Desired:

Experience integrating conventional code with Appian or another low-code platform.
Experience with Spring, ASP.NET, containers, AWS, Oracle, S3, or enterprise document and reporting systems.
Experience modernizing Federal acquisition, financial, or other regulated applications.

Required Skills and Competencies:

Java and .NET enterprise development
Legacy analysis and incremental refactoring
API facades and compatibility engineering
Automated testing and secure DevSecOps
Migration, cutover, and production support

Work Environment and Travel:

Work may occur remotely when authorized, at Government facilities, or in controlled office and data-center environments. Work involving classified information or SIPRNet will be performed at a Government-approved secure location using authorized systems. The role generally supports Government business hours, with occasional release, incident-response, maintenance-window, or approved travel requirements. Reasonable accommodations may be made to enable qualified individuals with disabilities to perform the essential functions.

Our Equal Employment Opportunity Policy

The company is an equal opportunity employer. The company shall not discriminate against any employee or applicant because of race, color, religion, creed, ethnicity, sex, sexual orientation, gender or gender identity (except where gender is a bona fide occupational qualification), national origin or ancestry, age, disability, citizenship, military/veteran status, marital status, genetic information or any other characteristic protected by applicable federal, state, or local law. We are committed to equal employment opportunity in all decisions related to employment, promotion, wages, benefits, and all other privileges, terms, and conditions of employment.

The company is dedicated to seeking all qualified applicants. If you require an accommodation to navigate or apply for a position on our website, please get in touch with Heaven Wood via e-mail at accommodations@koniag-gs.com or by calling 703-488-9377 to request accommodations.

Koniag Government Services (KGS) is an Alaska Native Owned corporation supporting the values and traditions of our native communities through an agile employee and corporate culture that delivers Enterprise Solutions, Professional Services and Operational Management to Federal Government Agencies. As a wholly owned subsidiary of Koniag, we apply our proven commercial solutions to a deep knowledge of Defense and Civilian missions to provide forward leaning technical, professional, and operational solutions. KGS enables successful mission outcomes for our customers through solution-oriented business partnerships and a commitment to exceptional service delivery. We ensure long-term success with a continuous improvement approach while balancing the collective interests of our customers, employees, and native communities. For more information, please visit www.koniag-gs.com.

Equal Opportunity Employer/Veterans/Disabled. Shareholder Preference in accordance with Public Law 88-352

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