Jobs in the United States

25+ jobs

Save this search

Added 8 mins ago
Applications Support Sr Analyst
Citibank, N.A.
United States
…observability solutions across diverse technology stacks including distributed applications, cloud platforms, containers, middleware, APIs, and traditional enterprise systems. The position…
Added 11 mins ago
Applications Support Sr Analyst
Citi
IRVING, TX · Irving, TX · Irving
…observability solutions across diverse technology stacks including distributed applications, cloud platforms, containers, middleware, APIs, and traditional enterprise systems. The position…
Added 14 mins ago
Hyperconverged Infrastructure Engineer
Koniag Government Services
Lakewood, CO
Koniag Technology Solutions, inc a Koniag Government Services company, is seeking a Hyperconverged Infrastructure Engineer with a Secret Security clearance to support KTS and our government…
Added 14 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 14 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 14 mins ago
Software Developer
Koniag Government Services
Huntsville, AL
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…
Added 14 mins ago
Network Engineer T4
Koniag Government Services
Washington, DC
Koniag IT Systems, LLC a Koniag Government Services company, is seeking a Network Engineer T4 to support KITS and our government customer Washington, DC. This position requires the…
Added 14 mins ago
Senior Network Engineer T4
Koniag Government Services
Washington, DC
Koniag IT Systems, LLC a Koniag Government Services company, is seeking a Senior Network Engineer T4 to support KITS and our government customer Washington, DC. This position requires the…
Added 14 mins ago
Zscaler Integration Engineer - Mid
Koniag Government Services
Washington, DC
Koniag Operations Services, LLC, a Koniag Government Services company, is seeking an experienced Zscaler Integration Engineer (Mid) to support enterprise network security operations and IT…
Added 14 mins ago
Sr Palo Alto Integration Engineer
Koniag Government Services
Washington, DC
…Services company, is seeking an experienced Palo Alto Integration Engineer (Senior) to support enterprise network security operations and IT administrative and operational support services…
Added 14 mins ago
Palo Alto Integration Engineer - Mid
Koniag Government Services
Washington, DC
…Services company, is seeking an experienced Palo Alto Integration Engineer (Mid) to support enterprise network security operations and IT administrative and operational support services for…
Added 14 mins ago
Okta Identity Developer - Mid
Koniag Government Services
Washington, DC
…operational support of custom identity solutions, integrations, and automation capabilities built on and around the Okta Identity platform across a complex, geographically distributed…
Added 14 mins ago
Harness/Traceable Integration Engineer (Senior)
Koniag Government Services
Washington, DC
…company, is seeking an experienced Harness/Traceable Integration Engineer (Senior) to support enterprise DevSecOps operations, API security, and IT administrative and operational support…
Added 14 mins ago
Sr Entra ID Integration Engineer
Koniag Government Services
Washington, DC
…Services company, is seeking an experienced Entra ID Integration Engineer (Senior) to support enterprise identity and access management operations and IT administrative and operational…
Added 14 mins ago
Data Center Infrastructure Engineer (TS)
Koniag Government Services
Washington, DC
We are seeking an experienced Data Center Infrastructure Engineer to design, implement, monitor, and manage enterprise‑grade data center infrastructure. This engineer will ensure the…
Added 14 mins ago
Site Reliability Engineer (SRE) (TS)
Koniag Government Services
Washington, DC
We are seeking an experienced Site Reliability Engineer (SRE) to blend software engineering and systems administration practices to ensure the reliability, availability, and performance of…
Added 14 mins ago
Principal Network/ Systems Engineer
Koniag Government Services
Fort Lee, VA · Carson, CA · Columbus, OH · Bedford, MA · Smyrna, GA
Koniag IT Systems, LLC, a Koniag Government Services company, is seeking a Principal Network/ Systems Engineer to support KITS and our government customer in Carson, CA.
Added 14 mins ago
Senior Active Directory (AD) Engineer
Koniag Government Services
Fort Lee, VA · Carson, CA · Columbus, OH · Bedford, MA · Smyrna, GA
Koniag IT Systems, LLC, a Koniag Government Services company, is seeking a Senior Active Directory (AD) Engineer to support KITS and our government customer in Carson, CA. This position is…
Added 21 mins ago
Lead java engineer with aws
TransUnion LLC
Crum Lynne, PA
Added 22 mins ago
Principal Software Engineer
The MITRE Corporation
McLean, VA · Bedford, MA
Strong understanding of cloud and distributed systems principles, including service interfaces, automation, resilience, scalability, observability, and secure operations.
Added 33 mins ago
Forward Deployed Engineer (FDE), AWS Forward Deployed Engineering, US Government
Amazon Web Services, Inc.
Jessup, MD · Arlington, VA · Seattle, WA · New York, NY · Denver, CO · Herndon, VA
A Forward Deployed Engineer II (FDE II) embeds directly inside a strategic enterprise customer to independently design, build, deploy, and run AI-powered production systems alongside the…
Added 35 mins ago
Software Engineer II
Zayo Group LLC
United States
Zayo Group is seeking a talented and motivated Software Engineer II to join our Network Automation Software Engineering team. Our team develops and maintains the software platforms,…
Added 35 mins ago
Senior Software Engineer
Zayo Group LLC
United States
The ideal candidate is a strong software engineer who enjoys solving complex technical challenges, understands distributed systems, and is interested in applying modern software engineering…
Added 40 mins ago
Principal Site Reliability Engineer
NVIDIA USA
CA
…and systems engineering practices with deep expertise across distributed systems, networking, cloud infrastructure, Kubernetes, databases, capacity management, continuous delivery, and…
Added 47 mins ago
U
Sr Software Engineer - Streaming Data Platform
Uber
Sunnyvale, CA · San Francisco, CA · Seattle, WA
- $202,000 to $224,000 USD / year
…foundational systems that operate at global scale. As a Sr Software Engineer on the Streaming Data Platform team, you will shape the architecture and evolution of the critical…

Koniag Government Services

Software Developer

Huntsville, AL, United States

Apply About employer

Applications open in a new tab.

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.

Apply About employer

Report this job