Jobs in the United States

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Added 2 mins ago
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Senior Software Engineer (Quality, Health Records)
Whoop
Boston, MA
- $150,000 to $215,000 USD / year
As a Senior Software Engineer you will own quality engineering for Health Records while building shared data-mocking capabilities that support teams across WHOOP.
Added 3 mins ago
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Lead Principal Platform Software Engineer
Oracle
Seattle, WA · Santa Clara, CA
- $113,600 to $306,400 USD / year
We are seeking a Lead Principal Platform Software Engineer to lead the architecture and delivery of critical platform systems and initiatives across teams. This is a hands-on technical…
Added 4 mins ago
Senior Software Engineer (Institutional, Financing)
Coinbase
Montpelier, VT
As a Senior Software Engineer on the Financing Engineering team within the Institutional group, you'll design, build, and scale the systems that safely manage billions of dollars in loans…
Added 5 mins ago
Software Engineer II
Amentum
Montpelier, VT
The Software Engineer II will perform full stack development with C# program, ReactJS, MVC, Linq, and rest API development in NET Core platform. This position is US remote teleworking…
Added 5 mins ago
Software Engineer
Teradata
Montpelier, VT
This position is for a Software Engineer in the POD Services team within the TD Factory team. The position involves development, integration, functional and performance testing, and fault…
Added 5 mins ago
Software Engineer, Infrastructure - Central Growth
Meta
Montpelier, VT
Software Engineer, Infrastructure - Central Growth Responsibilities:
Added 5 mins ago
Mainframe Technical Engineer
Highmark Health
Montpelier, VT
…analysts, and engineers to build and optimize solutions, ensuring quality, integrity, and performance. The ideal candidate is adaptable, solution-oriented, and capable of collaborating…
Added 5 mins ago
EG
Quality Assurance Engineer - PHP
Eliassen Group
Montpelier, VT
- $40 to $50 USD / hour
Our client seeks a results-driven Senior Quality Assurance Engineer to support Policyholder Portal applications. The role requires manual, automation, mobile, API, and database testing…
Added 9 mins ago
Aerodynamicist
Ford
Long Beach, CA · Long Beach
…Working as one end-to-end organization, we turn ideas into high-quality vehicles, software and experiences across gas, hybrid and electric, designed around what customers…
Added 11 mins ago
SO
Environmental Engineer
State of Iowa
Des Moines, IA
- $30.57 to $47.42 USD / hour
The Iowa Department of Natural Resources has an exciting, environmental engineering position available within the Land Quality Bureau, located in Des Moines, Iowa. If you are seeking an…
Added 16 mins ago
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Quality Control Laboratory Technician, Support I
Zebra Technologies
Morris Plains, NJ
- $23 USD / hour
Actively participates in the Quality Control Daily Targets related to safety, quality, delivery and cost.
Added 16 mins ago
Senior Test Engineer
ASRC Federal Holding Company
Egg Harbor Township, NJ
Independently lead testing efforts and evaluate software quality.
Added 16 mins ago
Senior Software Engineer (Institutional, Financing)
Coinbase
Trenton, NJ
As a Senior Software Engineer on the Financing Engineering team within the Institutional group, you'll design, build, and scale the systems that safely manage billions of dollars in loans…
Added 18 mins ago
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Roadway Engineer
GPAC
Minneapolis, MN
- $85,000 to $125,000 USD / year
4+ years of experience as a civil engineer in transportation design
Added 21 mins ago
WI
(USA) Systems and Infrastructure Engineer III, Information Security
Walmart Inc.
HERNDON, VA
- $90,000 to $216,000 USD / year
The Systems and Infrastructure Engineer III, Information Security, plays a critical role in designing, implementing, and maintaining secure and scalable infrastructure solutions. This…
Added 21 mins ago
WI
(USA) Principal, Software Engineer
Walmart Inc.
United States
- $143,000 to $286,000 USD / year
The (USA) Principal, Software Engineer leads the design and delivery of scalable platform capabilities, driving innovation in cloud-native architectures and AI/ML integration. This role…
Added 21 mins ago
WI
Software Engineer II | Bentonville, Arkansas
Walmart Inc.
United States
- $80,000 to $155,000 USD / year
As a Software Engineer II, you will deliver high-quality software solutions by collaborating with cross-functional teams to design, develop, and maintain scalable applications and services.…
Added 24 mins ago
Analytics Engineer (X)
SpaceXSI
Palo Alto, CA
We are seeking a skilled Analytics Engineer to build and maintain robust data systems that enable high-impact quantitative analysis and business decision-making. This role combines strong…
Added 25 mins ago
Senior Software Engineer II
Samsara
Remote, United States
We are looking for a product-minded senior engineer who can own ambiguous problems end to end, make practical tradeoffs across surfaces, and ship work that holds up in the field. You will…
Added 25 mins ago
IG
Software Quality Engineer
Insight Global
Sunset Hills, MO
- $35 to $40 USD / hour
We are seeking a Junior Software Quality Engineer with strong test automation experience and prior hands-on experience applying AI-assisted testing practices. In this role, you will help…
Added 25 mins ago
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Project Engineer II - Commercial Construction
GPAC
Jackson, WY
- $115,000 to $125,000 USD / year
…project closeout. Safety is the number one priority and Project Engineer II’s are expected to promote and exemplify safe work practices. Project Engineer II’s are expected to work with team…
Added 31 mins ago
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Bridge Engineer -PE
GPAC
Jacksonville, FL
- $115,000 to $135,000 USD / year
Are you an experienced Bridge Structural Engineer looking for a long-term opportunity with a firm that values technical expertise, leadership, and career growth?
Added 34 mins ago
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Bridge Engineer -PE
GPAC
Miami, FL
- $115,000 to $135,000 USD / year
Are you an experienced Bridge Structural Engineer looking for a long-term opportunity with a firm that values technical expertise, leadership, and career growth?
Added 34 mins ago
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Bridge Engineer -PE
GPAC
Orlando, FL
- $115,000 to $135,000 USD / year
Are you an experienced Bridge Structural Engineer looking for a long-term opportunity with a firm that values technical expertise, leadership, and career growth?
Added 34 mins ago
H
R&D Writing System Engineer
HP
Corvallis
- $93,400 to $143,800 USD / year
…HP’s industry leading print businesses. This Specialist-level engineer primarily supports the PageWide Industrial (PWI) business by leading R&D development and integration of ink and…

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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