Senior Software Engineer Expert Level Position jobs in Herndon – Browse 139 openings on RoboApply Jobs

Senior Software Engineer Expert Level Position jobs in Herndon

Open roles matching “Senior Software Engineer Expert Level Position” with location signals for Herndon. 139 active listings on RoboApply Jobs.

139 jobs found

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company
Full-time|On-site|Herndon, Virginia, United States

KDA Consulting is a distinguished Disabled Veteran, Woman-Owned, and Certified Disadvantaged Small Business. Our diverse team is dedicated to addressing the critical challenges in National Defense and Intelligence through innovative IT solutions. We prioritize collaboration and are committed to delivering projects efficiently, on schedule, and within budget.We are actively looking for a Senior Software Engineer to join our talented team and provide vital support to our government partners.Key Responsibilities and Required Experience: Proven engineering expertise with core Microsoft Windows platforms and services, particularly MECM. Proficient in managing Server, Workstation, and Software upgrades using MECM. Hands-on experience with Windows 10, DNS, DFS, and DHCP. Expertise in Active Directory administration, including software deployment and Group Policy (GPO) management. Excellent verbal communication and documentation abilities. Familiarity with Security Development Operations (SecDevOps) in iterative development projects. Strong understanding of Agile development methodologies. Microsoft Azure certifications, showcasing capabilities in cloud design, implementation, and configuration. Proficiency in modern programming languages (e.g., Java, C, C++, C#, Python, Perl) or automation through PowerShell scripting. Preferred Qualifications: Expert candidates with a minimum of 11 years of relevant experience are encouraged to apply. A Bachelor's Degree is required; a Master’s Degree is preferred. Experience with Security Development Operations (SecDevOps) and Agile methodologies. Microsoft Azure certifications for cloud design and implementation. Knowledge of modern programming languages or automation with PowerShell. Requirements: Active TS/SCI + Full Scope Poly U.S. Government Security Clearance is mandatory. Education and Experience: Minimum of 11 years of relevant work experience with a Bachelor’s Degree, or 9 years with a Master’s Degree. Ability to maintain confidentiality and discretion. Strong interpersonal skills for networking and building professional relationships. Excellent organizational skills with the ability to prioritize tasks effectively.

Feb 27, 2025
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company
Full-time|On-site|Herndon, Virginia, United States

Join KDA Consulting as a Senior Software Engineer specializing in Big Data technologies. In this pivotal role, you will lead the design and implementation of cutting-edge data processing systems that drive strategic insights and innovation. Collaborate with a talented team to develop scalable and efficient solutions that meet the needs of our diverse clientele.

Apr 5, 2026
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companyclarityinnovates logo
Senior Platform Engineer

clarityinnovates

Full-time|On-site|Herndon, VA

clarityinnovates is hiring a Senior Platform Engineer in Herndon, VA. This position plays a key role in building and maintaining the core technology infrastructure that supports daily operations. Responsibilities Design, develop, and maintain scalable platform solutions that address business requirements Collaborate with teams throughout the company to integrate new technologies effectively Apply best practices to system architecture and software development Provide guidance to team members on optimizing system performance Contribute to the delivery of reliable, high-quality products Collaboration This role involves frequent work with cross-functional teams to ensure technology solutions support company objectives and run efficiently.

Apr 24, 2026
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companyAccenture Federal Services logo
Custom Software Engineer

Accenture Federal Services

Full-time|$96.2K/yr - $192.3K/yr|On-site|Herndon, VA

Accenture Federal Services seeks a Custom Software Engineer in Herndon, VA to help build secure, scalable systems that support US government missions. This position combines technical leadership with hands-on software development, working closely with AI and data teams to deliver practical solutions for defense, national security, public safety, and health projects. What you will do Technical leadership and architecture: Shape the design and development of backend systems and event-driven APIs, primarily using FastAPI. Code quality and reviews: Take part in code and technical design reviews to uphold standards for quality, performance, and security. AI model deployment: Collaborate with data scientists and machine learning engineers to integrate, containerize, and deploy AI/ML models, such as natural language processing, recommendation engines, and generative AI, into production environments. Containerization and orchestration: Build applications for cloud deployment, using Kubernetes for container orchestration. Asynchronous processing and distributed systems: Design systems that use asynchronous processing and task queues (including Celery, RabbitMQ, or Kafka) to manage long-running or unreliable tasks outside the main API. This role focuses on both technical depth and collaboration, offering the chance to work alongside professionals in AI, data, and engineering. The environment values code quality, security, and scalable design.

Apr 21, 2026
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companyATPCO logo
Full-time|On-site|Herndon

The Principal Software Engineer at ATPCO takes a central role in shaping software solutions and designing reliable applications. Based in Herndon, this position calls for strong technical leadership and a thorough grasp of software development and design principles. Role overview This engineer leads complex projects from the earliest planning stages through deployment. The role includes architecting software, setting technical direction, and ensuring the team delivers high-quality results. Key responsibilities Work closely with cross-functional teams to gather and define technical requirements Mentor junior developers and support their professional growth Promote best practices in coding and design throughout the team Contribute to improvements in product functionality and performance Requirements Extensive experience in software development and application architecture Proven ability to lead projects from concept to deployment Strong understanding of design principles and coding standards Experience collaborating with diverse technical and business teams

Apr 28, 2026
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companyClarity Innovations logo
Principal Software Engineer

Clarity Innovations

Full-time|On-site|Herndon, VA

At Clarity Innovations, we are a dedicated national security partner committed to safeguarding our nation’s interests. We deliver innovative solutions that empower the Intelligence Community (IC) and the Department of Defense (DoD) to transform data into actionable intelligence, ensuring mission success in a rapidly changing world.Our mission-driven software and data engineering platform modernizes data operations through advanced workflows, continuous integration/continuous deployment (CI/CD), and secure DevSecOps practices. We tackle challenges in Information Warfare, Cyber Operations, Operational Security, and Data Structuring, enabling comprehensive solutions that drive significant operational impact.We are passionate about delivering state-of-the-art tools and capabilities that confront the most complex national security challenges, providing our partners with the means to stay ahead of emerging threats and ensuring the success of their critical missions. At Clarity, we prioritize our people and strive to be a destination employer for top talent, fostering an environment where innovation flourishes, careers advance, and individuals are respected. Join us as we continue to lead innovation and address the most pressing challenges in national security.Position OverviewThis role is part of a dynamic team at the cutting edge of developing crucial components for a next-generation distributed cyber network operations platform, offering novel solutions to the challenges faced by cyber missions at scale. You will play a key role in contributing to the core messaging framework that facilitates intra-platform orchestration. Your contributions will include designing and implementing microservices developed in Python and Go, containerized with Docker images and deployed within a Kubernetes cluster. A successful developer in this role will possess a wide array of experiences, including secure networking practices such as implementing mTLS at both the application and service-mesh layer, utilizing gRPC for intra-process communications, and debugging GraphQL APIs. This position also provides unique opportunities for engagement with our customers and end-user groups to help refine and enhance functionality.The ideal candidate will take pride in their work and strive for excellence in all endeavors. They are motivated by challenges and actively seek out complex problems that push them beyond their comfort zone. They understand that the mission we support transcends any one individual and has a profound impact on our country’s national security. Our team dynamic is relational, humble, and dedicated to excellence. We take responsibility for our mistakes promptly, consider how our work affects the personal lives of our teammates, and refuse to settle for mediocrity.

Apr 1, 2026
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companyATPCO logo
Full-time|On-site|Herndon

The Director of Software Engineering will lead a team of talented engineers in the development and enhancement of software solutions that drive innovation within ATPCO. This role requires a strategic mindset along with hands-on technical expertise to oversee the full software development lifecycle, ensuring that our technology stack remains cutting-edge and effective. You will collaborate with cross-functional teams to align engineering initiatives with business goals and mentor engineers to foster their professional growth.

Apr 9, 2026
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company
Full-time|On-site|Herndon, VA

Software Test EngineerLocation: Herndon, VAJob Overview:At Cinteot, we prioritize our employees and are dedicated to providing a variety of career opportunities aimed at enhancing personal growth and agility. Our flexible work schedules, competitive compensation, and extensive benefits empower our staff to lead healthy and fulfilling lives both professionally and personally.We are currently looking for a Full-Time Software Test Engineer to join our dynamic team in Herndon, VA. In this role, you will collaborate with a talented group of 3-5 developers to create mission-critical software solutions utilized globally. You will also engineer innovative solutions to address complex customer challenges. The ideal candidate will possess a solid understanding of software development principles, software design practices, and database structures.Security Clearance Requirement:Applicants must be U.S. Citizens and will be required to obtain a government security clearance. This position is based at a facility that necessitates special access.

Mar 1, 2026
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companyArtech Information Systems LLC logo
SiteMinder Subject Matter Expert

Artech Information Systems LLC

Contract|On-site|Herndon

Join our dynamic team at Artech Information Systems LLC as a SiteMinder Subject Matter Expert. In this contract role, you will leverage your expertise to provide guidance and support on SiteMinder solutions, ensuring optimal performance and security across our client's digital landscape.

May 27, 2016
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companyusm2 logo
Full-time|On-site|Herndon

Join us at usm2 as a C++ Software Engineer, where you will play a critical role in developing and maintaining high-performance applications. You will collaborate with a team of talented engineers to design innovative solutions that meet our client's needs. This position is perfect for individuals who thrive in a dynamic environment and seek to make a significant impact through their work.

Aug 24, 2017
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companyLanceSoft, Inc. logo
Contract|On-site|Herndon

Join our dynamic team at LanceSoft, Inc. as a Software Engineer specializing in System Analysis and Programming. In this role, you will collaborate with cross-functional teams to analyze system requirements and develop high-quality software solutions. Your expertise will contribute to the design, implementation, and maintenance of software systems that enhance operational efficiency.

Jun 26, 2017
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companyRedhorse Corporation logo
Cyber Software Developer

Redhorse Corporation

Full-time|On-site|Herndon, VA

Join Redhorse Corporation as a Cyber Software Developer and become a vital part of our innovative team dedicated to enhancing cybersecurity solutions. In this role, you will design, develop, and implement software that strengthens our defense systems against emerging threats. Collaborate with cross-functional teams to create robust applications that meet the highest standards of security and performance.

Apr 3, 2026
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companyNorthstrat logo
Full-time|On-site|Herndon, Virginia, United States

Join Northstrat as a Software Engineer and be part of a dynamic team that thrives on innovation and excellence. In this role, you will develop robust software solutions that drive our projects forward and contribute to our mission of delivering cutting-edge technology solutions.

Mar 26, 2026
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companyCapital Solutions Group logo
Senior Cloud Engineer

Capital Solutions Group

Full-time|On-site|Herndon, Virginia

SECURITY CLEARANCE: TS/SCI with Polygraphs (VA)POSITION: Senior Cloud EngineerREQUISITION: AWSMSA-02.111924LOCATION: Herndon, VirginiaJOB DESCRIPTION:As a Senior Cloud Engineer, you will be responsible for designing and implementing cutting-edge features using AWS Cloud with CDK. You will collaborate with our team to build new functionalities and ensure seamless integration with existing systems while maintaining the highest security standards and adhering to best practices.TECHNICAL CAPABILITIES:• Proven experience as a software developer with a strong background in Full-Stack development for enterprise applications.• 3-5+ years of UI/UX design experience.• 2-3+ years of back-end development experience.• Proficiency in back-end languages such as Java, Python, GO, SQL, and/or C++, and front-end languages including JavaScript, TypeScript, HTML, and CSS.• Expertise in front-end frameworks such as React or Vue.• Familiarity with container technologies and AWS services.• Experience in using software management tools like GitLab, GitHub, or similar.• Understanding of application security requirements for Springfield, VA clients.• Skilled in developing AWS infrastructure as code using AWS CDK for services like API Gateway, DynamoDB, Lambda, SQS, and SNS, along with a solid understanding of networking principles.• Hands-on experience in building and deploying capabilities as Infrastructure as Code (IaC), preferably with AWS CDK or CloudFormation.• Strong troubleshooting and problem-solving skills in development and production environments.QUALIFICATIONS:CERTIFICATION: Any AWS certification(s) are advantageous.EDUCATION & EXPERIENCE:• Bachelor's Degree in Computer Science or IT Engineering from an accredited institution, along with a minimum of 5 years of relevant experience.

Nov 19, 2024
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companylatitudeinc logo
Full-time|On-site|Herndon, VA

Join our dynamic team as a Java Software Engineer, where you will play a pivotal role in advancing mission-critical geospatial intelligence systems for a federal client. This long-term project is dedicated to modernizing and maintaining platforms that empower users to efficiently submit, search, and manage geospatial and imagery data across diverse networks.The program employs cutting-edge Agile and DevSecOps methodologies, emphasizing collaboration, automation, and operational reliability. As a key member of a scrum team, you will engage in designing, developing, testing, and supporting innovative software solutions that directly contribute to national security missions.

Sep 26, 2025
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companyBlackSky logo
Full-time|$155K/yr - $155K/yr|Remote|Seattle, WA; Herndon, VA; Remote

BlackSky seeks a Lead Software Engineer for its Ground & Control Services team. This position focuses on building autonomous software that manages and monitors a satellite constellation. The work spans high-speed tasking, ground and space telemetry, health monitoring, and low-latency connections with ground stations around the world. The software you help create will tie hardware-level interfaces to cloud-based microservices, supporting systems that keep satellites safe, responsive, and efficient with minimal human oversight. Role overview This role involves designing and developing mission-critical systems that operate 24/7. The team’s software enables real-time control and monitoring, requiring careful attention to safety, precision, and testability. The position is open to candidates in Seattle, WA, Herndon, VA, or remote in select states. What you will do Develop autonomous software for satellite control and monitoring Implement solutions for high-speed tasking and health monitoring Connect hardware-level interfaces to cloud microservices Support low-latency communications with global ground stations Contribute to systems that must operate reliably with minimal human intervention Requirements Initiative and ownership in tackling complex technical challenges Curiosity about autonomous and mission-critical systems Discipline to trace, validate, and challenge requirements as needed Commitment to safety, precision, and testability in software Experience with both low-level and cloud-based technologies Strong collaboration and communication skills BlackSky values a people-first, customer-centric culture. The team welcomes candidates who are humble, focused, and eager to contribute to a shared mission.

Apr 30, 2026
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company
Full-time|On-site|Herndon, Virginia, United States

KDA Consulting is a distinguished Disabled Veteran, Woman-Owned, Certified Disadvantaged Small Business, featuring a diverse team of professionals dedicated to addressing the complex challenges in National Defense and Intelligence through innovative IT solutions. We prioritize teamwork and are committed to achieving our goals effectively, delivering results on time and within budget.We are actively looking for a Systems Engineer to join our team and provide support to our esteemed Government Partner.Primary Responsibilities and Required Experience:Extensive knowledge and experience with Microsoft CA, PKI, and OSCP.Proven Tier 3 and Tier 4 troubleshooting expertise.Expertise in Server OS versions 2016, 2019, and beyond.Deep understanding of Active Directory, DNS, and DHCP.Comprehensive knowledge and experience with cloud technologies.Proficiency in scripting languages such as PowerShell, VB, and C#.Strong ability to prioritize tasks and execute them efficiently.Ability to work independently as well as collaboratively within a team.Willingness to adapt and learn new technologies as required.Experience in drafting enterprise-level technical standards documentation and diagrams.Exceptional customer service skills.Preferred Qualifications:MCSE/MCITP certification.Experience with Microsoft Azure Pack.Familiarity with AWS.Strong understanding of Enterprise Networking best practices.

Feb 27, 2025
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companySMX logo
Full-time|$175K/yr - $235K/yr|On-site|Herndon, VA

Join SMX as a Senior Program Manager where you will play a pivotal role in leading and managing a diverse portfolio of Fixed Price (FFP) software development initiatives. This strategic position demands a highly experienced professional with extensive knowledge in executing fixed-price contracts, financial oversight, and software delivery. The perfect candidate will possess a strong history of successfully delivering intricate software projects within stipulated timelines, adhering to budgets, and fulfilling contractual obligations while effectively managing risks associated with fixed-price environments.A key component of this role is substantial experience in Financial Systems modernization, with a focus on Oracle implementation projects (including Oracle ERP Cloud, EPM, HCM, or similar enterprise applications). The portfolio encompasses significant financial system transformation initiatives that require profound domain expertise.This position is located in Herndon, VA and necessitates a consistent onsite presence. As the Senior Program Manager, you will act as a vital link between corporate business functions (Finance, Contracts, Operations) and individual Project Managers, ensuring comprehensive visibility across the portfolio, maintaining financial discipline, and driving successful program outcomes.Essential Duties & ResponsibilitiesFixed Price Program ManagementOversee a portfolio of fixed-price software development programs, ensuring adherence to contractual scope, schedule, and budget constraints.Monitor and manage Estimate at Completion (EAC) for all programs, proactively identifying and addressing any cost overruns.Implement stringent change control processes to safeguard contract margins and avert scope creep.Establish and uphold delivery milestones that align with contractual obligations and payment schedules.Ensure all programs achieve robust financial performance through regular variance analysis and corrective action planning.Financial Systems Modernization LeadershipLead Oracle implementation programs encompassing ERP Cloud, EPM (Enterprise Performance Management), HCM (Human Capital Management), and related financial applications.Manage complex integrations of financial systems, data migrations, and transformative business processes.Address the unique challenges posed by financial system modernization, including compliance requirements (FISMA, FedRAMP), security authorizations (ATO), and regulatory frameworks.Collaborate with various stakeholders to ensure successful project delivery.

Mar 24, 2026
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companyATPCO logo
Full-time|On-site|Herndon

ATPCO is seeking a Senior UX Engineer based in Herndon. This position centers on improving digital product experiences and shaping how users interact with our platforms. Role overview The Senior UX Engineer works closely with colleagues from various departments to design and implement solutions focused on user needs. The goal is to deliver intuitive and effective interfaces that support our clients’ requirements. What you will do Enhance user experiences across ATPCO’s digital products Collaborate with cross-functional teams on user-centric design and implementation Contribute to the ongoing evolution of our product interfaces Location This role is based in Herndon.

Apr 29, 2026
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companyClarity Innovations logo
Full-time|On-site|Herndon, VA

At Clarity Innovations, we are a premier national security partner committed to protecting our nation's interests by providing cutting-edge solutions that empower the Intelligence Community (IC) and the Department of Defense (DoD). Our innovative approach transforms data into actionable intelligence, which is crucial for ensuring mission success in a rapidly changing landscape.Our mission-driven software and data engineering platform modernizes data operations through advanced workflows, Continuous Integration/Continuous Deployment (CI/CD), and secure DevSecOps practices. We tackle challenges related to Information Warfare, Cyber Operations, Operational Security, and Data Structuring, delivering comprehensive solutions that create significant operational impact.We are passionate about providing state-of-the-art tools and capabilities to address complex national security challenges, helping our partners stay ahead of emerging threats and ensuring their critical missions succeed. At Clarity, our people are our greatest asset, and we strive to be an employer of choice for top talent, fostering an environment where innovation flourishes, careers progress, and individuals are respected. Join us in leading the way in innovation and confronting the most urgent challenges in national security.Position OverviewThe DANDIE (Data Acquisition Network for Delivery, Ingestion and Exploitation) program is an initiative designed to serve as a strategic data platform for streamlining the procurement, onboarding, consumption, and offboarding of CAI / PAI datasets, effectively enabling OCO missions. Built on open-source software (OSS), Commercial Off-The-Shelf (COTS), and Government Off-The-Shelf (GOTS) components and deployed on Kubernetes, DANDIE is poised to support batch, streaming, and QiP cross-domain data workflows while becoming the enterprise data hub for Cyber Command.In this pivotal role, you will be responsible for developing the platform and data lake architecture blueprint for DANDIE, ensuring seamless integration of OSS, COTS, and GOTS components on Kubernetes, and establishing patterns that facilitate brokerage, metrics, transport, and secure operations. Your design will form the backbone of a platform intended to scale across Cyber Command’s data ecosystem.

Apr 2, 2026

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