Jobs in the United States

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Added 21 mins ago
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Senior Cloud & Application Security Engineer
AXON-Networks
Irvine, CA
- $150,000 to $220,000 USD / year
The Senior Cloud & Application Security Engineer is the primary hands-on technical security engineer within AXON's Information Security organization.
Added 31 mins ago
CI
Embedded Controls Verification Engineer
Cintal, Inc.
Chillicothe, IL
- $80,000 to $105,000 USD / year
Cintal is a forward-thinking global technology company that develops and provides cutting-edge products and services to various industries such as heavy equipment, industrial, defense,…
Added 48 mins ago
EG
Financial Crimes Quality Engineer
Eliassen Group
Cincinnati, OH
- $70 to $80 USD / hour
Our client seeks a Financial Crimes Quality Engineer to ensure the quality, accuracy, reliability, and performance of Financial Crimes applications and data supporting AML, CDD, CTR,…
Added 1 hour ago
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Principal Software Engineer
Microsoft
WA · Redmond, WA · Redmond
- $142,800 to $304,200 USD / year
…organization powers mission-critical Microsoft 365 and Dynamics 365 services, including BizChat, Work IQ, Agent 365, and the agent runtime for the next era of work. Together, we are…
Added 1 hour ago
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Senior Software Engineer - AI Experiences, Monetization
Microsoft
NY · WA · Redmond, WA · New York · Redmond
- $119,800 to $261,000 USD / year
The team is looking for a Senior Software Engineer to drive technical solutions that advance artificial intelligence capabilities and engineering practices across the software development…
Added 1 hour ago
Project Engineer
Worley
BC, CA
…engineering, procurement and construction across the project lifecycle, with services extending through to operations and decommissioning. Leveraging extensive experience and AI-enabled…
Added 1 hour ago
Software Engineering Lead and Application Architect - TS/SCI with Polygraph
GD Information Technology, Inc.
United States
We are seeking a Lead Engineer to drive the end-to-end software engineering function for mission and enterprise applications across classified environments. This role is accountable for…
Added 2 hours ago
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Sr Cyber Engineer
Jobgether
Remote, United States
- $120,500 USD / year
This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a Senior Cyber Engineer based in the United States.
Added 2 hours ago
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Project Engineer
GPAC
Nashville, TN
- $90,000 to $130,000 USD / year
This organization provides full lifecycle mechanical solutions including HVAC, plumbing, controls/building automation, engineering services, and prefabrication support. Projects include…
Added 2 hours ago
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Project Engineer
GPAC
Memphis, TN
- $90,000 to $130,000 USD / year
This organization provides full lifecycle mechanical solutions including HVAC, plumbing, controls/building automation, engineering services, and prefabrication support. Projects include…
Added 2 hours ago
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Project Engineer
GPAC
Chattanooga, TN
- $90,000 to $130,000 USD / year
This organization provides full lifecycle mechanical solutions including HVAC, plumbing, controls/building automation, engineering services, and prefabrication support. Projects include…
Added 2 hours ago
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Project Engineer
GPAC
Knoxville, TN
- $90,000 to $130,000 USD / year
This organization provides full lifecycle mechanical solutions including HVAC, plumbing, controls/building automation, engineering services, and prefabrication support. Projects include…
Added 2 hours ago
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Project Engineer
GPAC
Cookeville, TN
- $90,000 to $130,000 USD / year
This organization provides full lifecycle mechanical solutions including HVAC, plumbing, controls/building automation, engineering services, and prefabrication support. Projects include…
Added 3 hours ago
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SENIOR NETWORK SECURITY ENGINEER
Jobgether
Remote, United States
- $120,000 to $140,000 USD / year
This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a Senior Network Security Engineer based in the United States.
Added 3 hours ago
Senior Cloud Cybersecurity Engineer (DoD ATO/RMF)
Unity Technologies Corp LLC
Myersville, MD
…Business (WOSB) delivering high-impact professional and technical services to government agencies. With deep expertise in Industrial and Enterprise Systems Modernization, FIAR (Financial…
Added 3 hours ago
Lead Software Engineer - Java, Microservices, MuleSoft & API Development (Remote)
CareFirst
Baltimore, MD
The Lead Software Engineer provides technical leadership for the design, development, integration, testing, deployment, and support of enterprise-scale software solutions, APIs, and…
Added 3 hours ago
Senior Platform Engineer
RTI International
UNAVAILABLE
As a Senior Platform Engineer, you will design, implement, automate, and support enterprise platform services that enable scalable, secure, and compliant delivery of research, analytics,…
Added 4 hours ago
AM
Senior Systems Administrator
Astro Mechanica
San Francisco, CA
- $140,000 to $170,000 USD / year
You’re the engineer who keeps our systems secure, reliable and running smoothly behind the scenes. You design things properly the first time, automate anything you do twice, and document…
Added 5 hours ago
MA
Principal Corporate Technology Engineer
Microsoft AI
NY · Mountain View, CA · Redmond, WA
- $142,800 to $304,200 USD / year
We are looking for a Principal Corporate Technology Engineer to engineer the identity, SaaS, access-governance, internal application, integration, and endpoint capabilities that Microsoft…
Added 5 hours ago
Senior SIP Engineer
Telegent, Inc.
Pleasant Grove, UT
Know the end-to-end systems lifecycle and full-stack development, own your work end to end, and have deployed systems at scale with solid observability (when a call drops, you know exactly…
Added 5 hours ago
Senior R&D Engineer, Foot and Ankle
Stryker
Mahwah, NJ
You will work alongside experienced engineers and cross-functional partners throughout the product development lifecycle, from understanding clinical needs and developing concepts through…
Added 6 hours ago
WI
(USA) Systems and Infrastructure Engineer III, Information Security
Walmart Inc.
HERNDON, VA
- $90,000 to $216,000 USD / year
…manages enterprise identity platforms supporting directory services, authentication, authorization, privileged access, and integrations across workforce, applications, cloud, and…
Added 6 hours ago
WI
(USA) Staff, Systems And Infrastructure Engineer, Information Security
Walmart Inc.
HERNDON, VA
- $110,000 to $264,000 USD / year
…manages enterprise identity platforms supporting directory services, authentication, authorization, privileged access, and integrations across workforce, applications, cloud, and…
Added 6 hours ago
WI
(USA) Staff, Systems And Infrastructure Engineer, Information Security
Walmart Inc.
HERNDON, VA
- $110,000 to $264,000 USD / year
…manages enterprise identity platforms supporting directory services, authentication, authorization, privileged access, and integrations across workforce, applications, cloud, and…
Added 6 hours ago
Computing Infrastructure Engineer, System Administrator Network Management & Virtualization Focus, Onsite
Sandia National Laboratories
Albuquerque, NM
We are seeking a motivated and skilled Computing Infrastructure Engineer (CIE) to join our High Security Operations IT Services team. This role supports the full lifecycle management of…

Koniag Government Services

Software Developer

Huntsville, AL, United States

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Job details

Posting language: English
Posted: Oct 8, 2026

Original job description

KGS is currently seeking an accomplished Senior Full Stack Software Engineer/Developer to spearhead the engineering, enhancement, and architectural modernization of core Line of Business (LOB) applications operating within a secure Department of War (DoW) enterprise environment. The ideal candidate will bring strong hands-on experience in full-stack development with React, JavaScript, and Node.js, and thrive in an Agile team setting. This role requires an understanding of modern software development practices, strong problem-solving abilities, and the ability to collaborate across teams to deliver secure, high-quality solutions.

A defining operational imperative of this engagement is that we are actively maintaining mission-critical legacy applications while driving strategic modernization. The selected senior engineer will operate across a sophisticated dual-track paradigm: ensuring uninterrupted operational readiness and fidelity of mature enterprise systems, while concurrently architecting, refactoring, and migrating these capabilities toward resilient, modular, and cloud-ready architectures.

Operating under the technical direction of the Software Development Lead and Solutions Architect, the Senior Software Developer will play an integral role throughout the full software development lifecycle within a disciplined Agile/Scrum framework. The incumbent must demonstrate authoritative, hands-on development expertise across the foundational stack: React, modern enterprise Java Spring Boot, and robust relational database engineering utilizing Microsoft SQL Server and/or MySQL.

Furthermore, demonstrable exposure to complementary enterprise frameworks - including modern .NET (.NET 8+ / C#) and Node.js - alongside practical experience within hyperscale cloud ecosystems (AWS, GCP, or Azure) represents a high-value differentiator. Centralizing all source code collaboration and automated CI/CD pipelines within GitLab, this role demands exceptional analytical acumen, disciplined engineering rigor, and an uncompromising commitment to DoW cybersecurity standards.

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

Full-Stack Architecture, Engineering & Legacy Modernization

Dual-Track Operational Execution: Uphold baseline stability, performance, and defect resolution for active legacy enterprise applications, while systematically engineering migration roadmaps that decompose monolithic architecture into decoupled, maintainable, and cloud-aligned services.
Full-Lifecycle Application Development: Leverage rigorous software engineering principles to design, construct, optimize, and sustain high-throughput, secure web applications utilizing React for user interfaces, Java Spring Boot for robust business logic, and Microsoft SQL Server / MySQL for resilient data persistence.
Modernization Strategy & Refactoring: Formulate and implement clean code refactoring, domain-driven decomposition, and containerization patterns, transitioning legacy routines to scalable microservices and modern design paradigms without disrupting continuous mission operations.
Process Automation & AI-Enabled Velocity: Proactively evaluate and integrate emerging AI-assisted developer capabilities, automated code-generation tools, and streamlined workflows to enhance developer velocity, technical accuracy, and lifecycle efficiency.

Front-End Engineering & User Experience

Modern Interface Development: Demonstrate mastery of React, ES6+ JavaScript, HTML5, and CSS3 to deliver intuitive, highly responsive, and component-driven user interfaces.
Accessibility & Interface Modernization: Modernize disparate, legacy front-end presentations into unified, reusable design systems that strictly conform to federal Section 508 accessibility mandates and DoW user experience benchmarks.

Backend Services, Middleware & Distributed Systems

Enterprise Service Implementation: Architect, implement, and maintain highly scalable backend microservices and enterprise applications utilizing the comprehensive Java Spring Boot ecosystem (including Spring MVC, Spring Data JPA/Hibernate, and Spring Security).
API Architecture & System Interoperability: Author, document, and refine secure, high-performance RESTful APIs and web services, establishing seamless interoperability between legacy data stores and modernized distributed components.
Polyglot Ecosystem Integration: Interface effectively with cross-platform and multi-framework components - such as modern .NET (.NET 8+ / C#) services or Node.js runtime environments - to support unified system integration during phased modernization initiatives.

Database Engineering, Optimization & SQL

Relational Database Stewardship: Apply advanced database engineering principles across enterprise relational platforms, specifically Microsoft SQL Server and MySQL.
Query Performance & Schema Evolution: Author, refactor, and tune sophisticated SQL queries, stored procedures, triggers, views, and data persistence layers; isolate performance bottlenecks, enforce referential integrity, and guide schema evolution across legacy and modern architectures.

Agile Cadence, GitLab Repository Management & DevSecOps

Agile/Scrum Leadership: Actively engage in sprint planning, refinement, daily scrums, retrospectives, and backlog prioritization across concurrent maintenance and modernization workstreams using Jira and GitLab.
GitLab Workflow & Version Control: Champion disciplined source code management, branching strategies, and merge request reviews exclusively within GitLab.
Continuous Integration & Delivery (CI/CD): Utilize and contribute to automated GitLab CI/CD pipelines to support continuous integration, automated test execution, static analysis gating, and controlled multi-environment deployments.
Tooling Mastery: Maintain operational fluency with modern IDEs and toolsets (e.g., IntelliJ IDEA, Visual Studio Code, Eclipse, Vite, npm/yarn).

Quality Assurance, Verification & Automated Testing

Comprehensive Test Engineering: Formulate and maintain rigorous multi-tier automated testing suites - incorporating unit, integration, regression, and end-to-end (E2E) validations (utilizing JUnit, Mockito, Jest, and React Testing Library) - to guarantee functional parity and prevent regressions during legacy refactoring.
Systematic Triage & Remediation: Methodically diagnose, isolate, and remediate application defects, race conditions, memory leaks, and performance anomalies across development, staging, and operational environments.
Code Governance, Peer Review & Technical Documentation
Peer Review Governance: Conduct constructive, meticulous peer code reviews within GitLab, verifying architectural cohesion, adherence to established design patterns, and compliance with secure coding standards.
Living Technical Documentation: Author clear, authoritative system architecture documentation, data flow diagrams, RESTful API specifications (Swagger/OpenAPI), and operational runbooks, reverse-engineering undocumented legacy business logic whenever necessary.

Infrastructure, Hosting & Cloud Platform Acumen

Hosting Infrastructure Familiarity: Maintain working familiarity with enterprise host environments, directory services, and application servers, including Apache Tomcat, Microsoft IIS, Active Directory, DNS, Red Hat Enterprise Linux (RHEL), Windows Server, and VMware virtualization.
Cloud Modernization Alignment: Collaborate on technical initiatives aimed at transitioning on-premises services into hyperscale cloud environments (e.g., AWS GovCloud, Microsoft Azure Government, or Google Cloud Platform).

Cybersecurity, STIG Adherence & Change Control

Security Hardening & STIG Compliance: Collaborate closely with information assurance and cybersecurity teams to ensure all application architectures, server configurations, and source code strictly align with DoW Security Technical Implementation Guides (STIGs).
Vulnerability Mitigation: Proactively remediate vulnerabilities identified via static/dynamic code analysis (SAST/DAST) and manage third-party software dependencies (CVE remediation, Software Bill of Materials/SBOM compliance).
Formal Change Governance: Ensure all configuration modifications and deployment artifacts satisfy formal Engineering Change Proposals (ECP) and change management protocols.

Professional Communication & Stakeholder Engagement

Cross-Functional Communication: Articulate sophisticated technical concepts, modernization tradeoffs, architectural decisions, and risk assessments with clarity and precision across technical teams, program management, and government stakeholders.

Work Experience, Knowledge, Skills & Abilities

Required Education: BS in Computer Science or Engineering.
Experience: 24 to 84 months of hands-on relevant experience.
Certification: CompTIA Security+ before joining.
Clearance: Active, Interim, or capable of obtaining SECRET clearance before joining.

Working Environment & Conditions

This job operates in a professional office environment and has a noise level of mostly low to moderate. This role routinely involves standard office equipment such as computers, phones, photocopiers, filing cabinets and fax machines.

This position is primarily indoors, consistent with a standard office position and has a noise level of mostly low to moderate. The incumbent is required to stand, walk; sit; use hands to finger, handle, or feel objects, tools, or controls; reach with hands and arms; talk and hear. The workload may require the incumbent to sit for extended periods of time. The incumbent must be able to read, do simple math calculations and withstand moderate amounts of stress.

The incumbent must occasionally lift and/or move up to 25 lbs. Specific vision abilities required by the job include close vision, distance vision, color vision, depth perception, and the ability to adjust focus.

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, sex, sexual orientation, gender, or gender identity (except where gender is a bona fide occupational qualification), national origin, age, disability, military/veteran status, marital status, genetic information, or any other factor protected by 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 accommodation to navigate or to apply for a position on our website, please contact Heaven Wood via e-mail at accommodations@koniag-gs.com or by calling 703-488-9377 to request accommodation.

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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