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Added 2 mins ago
Senior Test Engineer
ASRC Federal Holding Company
Egg Harbor Township, NJ
ASRC Federal Advanced Research LLC (AFAR) is seeking a Senior Test Engineer to join our Common Support Services - Weather (CSS-Wx) team that supports the Federal Aviation…
Added 13 mins ago
Software Engineer, Sensors and System Software (C++, Linux)
Avride
Austin, TX
Experience in working with the custom Linux based systems for the embedded devices, and understanding of the kernelspace parts of the senors data pipelines.
Added 25 mins 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…
Added 32 mins ago
Sr. Principal DevOps Engineer (AHT) - Position qualifies for sign-on bonus starting at $7k
Northrop Grumman
Aurora · Morrisville · Sacramento
Northrop Grumman’s Space Systems Sector is looking for an experienced Sr Principal Cloud Engineer. This position can be based in Aurora, CO, Morrisville, NC or Sacramento, CA.
Added 32 mins ago
DevOps Engineer or Principal DevOps Engineer - Position qualifies for sign-on bonus starting at $5k
Northrop Grumman
Aurora · Morrisville · Sacramento
Northrop Grumman’s Space Systems Sector is looking for an experienced DevOps Engineer or Principal DevOps Engineer. This position can be based in Aurora, CO, Morrisville, NC or Sacramento,…
Added 32 mins ago
Senior Software Engineer
Northrop Grumman
Newport News
At Northrop Grumman, our employees have incredible opportunities to work on revolutionary systems that impact people's lives around the world today, and for generations to come. Our…
Added 32 mins ago
Information Systems Engineer Manager 2
Northrop Grumman
Beale AFB
Northrop Grumman Aeronautics Systems has an opening for an Information Systems Engineer Manager 2 to join our team of qualified, diverse individuals within our Aircraft Solutions…
Added 32 mins ago
Staff DevOps Engineer - Position qualifies for sign-on bonus starting at $10k
Northrop Grumman
Aurora · Morrisville · Sacramento
Northrop Grumman’s Space Systems Sector is looking for an experienced Staff DevOps Engineer to augment our team. This position can be based in Aurora, CO, Morrisville, NC or Sacramento, CA.
Added 32 mins ago
Staff Cloud Engineer - Position qualifies for sign-on bonus starting at $10k
Northrop Grumman
Aurora · Morrisville · Sacramento
Northrop Grumman’s Space Systems Sector is looking for an experienced Staff Cloud Engineer. This position can be based in Aurora, CO, Morrisville, NC or Sacramento, CA.
Added 32 mins ago
Resource Control Team Software Engineer (Level 1 or 2) - AHT
Northrop Grumman
Manhattan Beach
At Northrop Grumman, our employees have incredible opportunities to work on revolutionary systems that impact people's lives around the world today, and for generations to come. Our…
Added 39 mins ago
Sr. Software Engineer, Kernels/CUDA (C++)
SpaceXSI
Palo Alto, CA
…the full stack - from low-level GPU kernel optimizations and Linux kernel internals to massive-scale orchestration and virtualization - to make training and inference at SpaceXSI as fast,…
Added 40 mins ago
M
Robotics Software Engineer, Teleoperation
Mecka
New York, NY
- $200,000 to $240,000 USD / year
We design and operate global systems for data capture, data labeling, and hardware-enabled workflows used by leading AI labs and robotics companies to train and validate humanoid and…
Added 40 mins ago
M
Teleop Platform Engineer, Real-Time Systems & UI
Mecka
New York, NY
- $200,000 to $240,000 USD / year
We design and operate global systems for data capture, data labeling, and hardware-enabled workflows used by leading AI labs and robotics companies to train and validate humanoid and…
Added 42 mins ago
Technical Support Engineer - Second Shift
NetApp
Morrisville, NC
…support of that mission, we are seeking a Technical Support Engineer with Cloud Hyperscaler experience. We are looking for eager individuals who love debugging and solving technical…
Added 42 mins ago
Software Engineer
Teledyne
Durham, NC
Knowledge of computer architecture (GPU/FPGA/distributed computing), operating systems, networking, storage systems, Unix/Linux, MATLAB, etc. is a plus
Added 42 mins ago
Mainframe Storage Engineer (Entry Level)
CGI Technologies and Solutions, Inc.
Durham, NC
CGI Federal is seeking a Mainframe Storage Engineer to support the Social Security Administration (SSA) in maintaining and enhancing its enterprise mainframe storage environment. The…
Added 43 mins ago
RA
Staff Engineer, Process Control & Data Solutions
Ramboll Americas Engineering Solutions, Inc.
Charlotte, NC
- $58,416 to $73,020 USD / year
…experience at our office located in Charlotte, NC. Our new Engineer will be assigned a mentor who will guide them through project assignments and gain experience working in one or more…
Added 46 mins ago
T
Windows Engineer
TEKsystems
Sulphur, LA
- $45 to $50 USD / hour
The Systems platform team is seeking extra support to handle the capacity of workstreams being impacted by AI adoption/enablement. Seeking Windows and RHEL administration support to help…
Added 47 mins ago
Staff Engineer, Systems Performance
Micron Technology
Richardson
Deploy, performance tune, and test data center solutions using cutting-edge memory and storage. Execute systems level projects to better understand data center workloads and maximize the…
Added 48 mins ago
Security Engineer
Blueberry Pediatrics
Remote, United States
- Strong Linux fundamentals, including patching and maintaining production systems.
Added 56 mins ago
Information Systems Unix Engineering Unix System Engineer 3
B&H Photo
New York, NY
Working knowledge of UNIX and Linux operating systems
Added 59 mins ago
Software Engineer, Lead
The MITRE Corporation
Aberdeen, MD
The Warfighting Software Systems Integration & Experimentation department develops, integrates, and evaluates software-intensive systems that enable mission capabilities across joint,…
Added 1 hour ago
Tech Consultant - Infrastructure Patch & Unix Engineer
NTT DATA Americas, Inc.
Jacksonville
We are seeking a skilled Unix Engineer with experience supporting enterprise-scale Unix/Linux environments. This role will be responsible for designing, testing, validating, and deploying…
Added 1 hour ago
Unix Engineer - Infrastructure Patch
NTT DATA Americas, Inc.
Jacksonville
We are seeking a skilled Unix Engineer with experience supporting enterprise-scale Unix/Linux environments. This role will be responsible for designing, testing, validating, and deploying…
Added 1 hour ago
CB
Security Engineer II
Coinstar Brand
Remote, United States
- $117,308 to $146,635 USD / year
Coinstar’s Security Engineer II is responsible for the design, implementation and maintenance of security solutions to include email security, network security including firewall…

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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