Senior Software Engineer/Tech Lead
$119.32k - $202.85kICF
At ICF Next, we are fearless in finding new ways to solve problems, relentless in making sure it pays off for our clients and committed to making a positive change in the world.Join our community of mission-driven creatives, communicators, strategists, and technologists to challenge the status quo.The TeamYou'll lead a delivery team within a cross-functional program that includes software engineers, solution and cloud architects, database administrators, DevSecOps engineers, quality assurance specialists, user experience professionals, business analysts, product managers, data analysts, accessibility and security specialists, and behavioral health subject matter experts. We partner with federal stakeholders to operate and modernize a mission-critical data collection and performance reporting platform used by grantees and program staff.The WorkIn this player-coach role, you will provide day-to-day technical leadership while remaining hands-on in the design, development, testing, and support of secure .NET applications. You will guide engineers through solution design and implementation, organize technical work, review code, resolve blockers, and help the team deliver dependable capabilities for data entry, batch ingestion, validation, workflow, reporting, and data exchange.A key part of the work is improving the platform without disrupting active users. You will help the team modernize legacy components incrementally, strengthen engineering practices, improve performance and data quality, expand automated testing and deployment, and make production behavior easier to observe and troubleshoot. You will also coach engineers and communicate technical options, risks, and progress to program and client stakeholders.Key Responsibilities:Lead a team of software engineers by organizing technical work, clarifying priorities, removing blockers, reviewing outcomes, and providing practical coaching and feedback.Design, develop, and maintain production web applications using C#, .NET, ASP.NET Core or MVC, and modern JavaScript or TypeScript.Translate product, data, security, accessibility, and operational requirements into clear technical designs and implementation plans.Guide the design of REST APIs, domain models, SQL Server data structures, queries, and integrations with internal and external systems.Oversee capabilities for data entry, batch upload, validation, duplicate detection, workflow, notifications, reporting, and data download.Establish expectations for automated tests, code quality, peer review, branching, release readiness, and maintainable documentation.Support continuous integration and deployment practices and coordinate application releases with cloud, DevSecOps, database, security, and quality assurance teams.Lead investigation of production defects and performance issues using application logs, monitoring data, root-cause analysis, and tested corrective actions.Ensure the team applies secure coding, least-privilege access, role-based authorization, privacy, Section 508, and WCAG requirements throughout delivery.Participate in Agile planning, estimation, demonstrations, release activities, and user acceptance testing while communicating dependencies, risks, and tradeoffs to stakeholders.Contribute to shared engineering standards and mentor less-experienced engineers across the program.Required Qualifications:Bachelor’s degree in computer science, software engineering, information systems, or a related field, or equivalent professional experience.5+ years developing and supporting resilient, well-tested production web applications, including 3+ years using C#, .NET or .NET Core, and ASP.NET MVC or Web API with object-oriented design.2+ years leading or providing technical direction to software engineers, including reviewing code, resolving technical blockers, documenting decisions, and communicating with stakeholders.3+ years working with SQL Server or another relational database, including data modeling, query development, and performance troubleshooting.2+ years developing REST APIs and browser-based applications using JSON, HTML, CSS, and JavaScript or TypeScript, with a strong understanding of and years using automated testing and Git-based development workflows, including pull requests, code reviews, and release management; 1+ year supporting cloud-hosted applications using containers or comparable deployment approaches.2+ years implementing authentication, authorization, role-based access, and secure handling of sensitive data.Authorization to work in the United States, ability to perform all work within the United States, and ability to obtain and maintain a favorable Public Trust determination and complete required background screening.Preferred Qualifications:Experience leading incremental modernization of legacy .NET applications while maintaining reliable production service.Experience troubleshooting production performance and reliability issues in AWS or AWS GovCloud using monitoring and logging tools such as CloudWatch or Splunk.Experience improving CI/CD pipelines, automated quality checks, container deployment, and repeatable environment configuration using infrastructure as code.Experience integrating Okta or another federated identity platform for single sign-on and multifactor authentication.Experience designing or supporting batch data ingestion, ETL, data validation, or business intelligence integrations such as Tableau.Experience supporting federal or public health systems, with familiarity with NIST Moderate controls, FedRAMP, ATO processes, or Section 508/WCAG accessibility requirements. *** Please note this role is contingent.#IndeedBot and Third-Party ApplicationsPlease note that this application must be submitted directly by the applicant for consideration. Failure to do so may result in the application being excluded for consideration. Applicants needing an accommodation for disability or religious purposes in connection with the application process should contact View email address on click.appcast.io for assistance.Working at ICFICF is a global advisory and technology services provider, but we’re not your typical consultants. We combine unmatched expertise with cutting-edge technology to help clients solve their most complex challenges, navigate change, and shape the future.We can only solve the world's toughest challenges by building a workplace that allows everyone to thrive. We are an equal opportunity employer. Together, our employees are empowered to share their expertise and collaborate with others to achieve personal and professional goals. For more information, please read our EEO policy.We will consider for employment qualified applicants with arrest and conviction records.Reasonable Accommodations are available, including, but not limited to, for disabled veterans, individuals with disabilities, and individuals with sincerely held religious beliefs, in all phases of the application and employment process. To request an accommodation, please email View email address on click.appcast.io and we will be happy to assist. All information you provide will be kept confidential and will be used only to the extent required to provide needed reasonable accommodations. Read more about workplace discrimination rights or our benefit offerings which are included in the Transparency in (Benefits) Coverage Act. Candidate AI Usage PolicyAt ICF, we are committed to ensuring a fair interview process for all candidates based on their own skills and knowledge. As part of this commitment, the use of artificial intelligence (AI) tools to generate or assist with responses during interviews (whether in-person or virtual) is not permitted. This policy is in place to maintain the integrity and authenticity of the interview process. However, we understand that some candidates may require accommodation that involves the use of AI. If such an accommodation is needed, candidates are instructed to contact us in advance at View email address on click.appcast.io. We are dedicated to providing the necessary support to ensure that all candidates have an equal opportunity to succeed. Pay Range - There are multiple factors that are considered in determining final pay for a position, including, but not limited to, relevant work experience, skills, certifications and competencies that align to the specified role, geographic location, education and certifications as well as contract provisions regarding labor categories that are specific to the position. The pay range for this position based on full-time employment is:$119,323.00 - $202,850.00Nationwide Remote Office (US99)SummaryLocation: Reston, VAType: Full time
$170k - $180k
Reston, VADescriptionConcept Solutions, LLC is seeking a Senior Software Engineer - Go (Golang) Enhancement Lead to lead a small engineering team responsible for enhancing, modernizing, and sustaining mission-critical applications supporting a Department of War (DoW) customer...SeniorFull timeContract workFor contractorsImmediate startRemote workMonday to Friday$170k - $180k
Reston, VADescriptionConcept Solutions, LLC (CS) is seeking an experienced Senior Java Software Engineer - Application Enhancements Lead to join a program team responsible for building, modernizing, and sustaining mission-critical applications for a Department of War (DoW...SeniorFull timeContract workFor contractorsImmediate startRemote workMonday to Friday- ...Byte Systems, a VTG Defense subsidiary, seeks a Senior Software Engineer/Team Lead for our Herndon, VA office. You will guide a cross-functional Agile Scrum team to build and maintain containerized services running in Kubernetes/OpenShift. The role requires strong Java...SeniorWork at office
$148.5k - $365.2k
...Here, ambition meets action. Tech meets trust. And innovation isn... ...your career at the company leading workforce transformation in the... ...RoleAs a Forward Deployed Engineer (FDE) on our Public Sector team... ...-quality, production-grade software using modern engineering practices...SeniorFull time- ...division is seeking a Staff Technical Program Manager to lead the development and integration of advanced defense... .... You will drive complex programs across hardware and software domains, coordinating with engineers, test crews, and external stakeholders to deliver capability...Senior
- ...s National Security Solutions team in Chantilly, VA is seeking a Sr. Software Engineer to design, develop, test and deploy software for advanced defense systems. You'll implement Agile practices, lead junior engineers, and collaborate across hardware, software, and data...Senior
- ...Peraton seeks an experienced Senior Software Engineer to lead design and development of OpenSearch-based visualization solutions. You will own architecture, guide data ingestion, indexing, and aggregation strategies, and build custom plugins or React components. Collaboration...Senior
$150k - $210k
Job TitleSenior Solid-State Laser Engineer / Technical LeadLocationHerndon, VA - Herndon, VA 20171 US (Primary)Job DescriptionWe are seeking a Senior Solid-State Laser Engineer / Technical Lead to drive the architecture, development, and delivery of advanced solid-state...SeniorImmediate startFlexible hours- ...engagement coordination and executive support to the Customer Co-Lead for a JHTS program. This role will require the candidate to work... ...with partners across the DoW, IC and FVEY to facilitate needed senior-level engagements and collaboration. Project: We're supporting a...SeniorFull timeWork at officeLocal area
- ...Comcast in Reston, VA is seeking a senior software engineer to provide technical leadership across software design, architecture, data structures, Linux, multi-threading, and networking. You will code in C++, Go, C, Python, Ansible, and Bash; participate in peer code...Senior
- ...Concept Solutions, LLC is seeking a Principal Software Engineering Lead to provide technical leadership, establish engineering standards, and drive quality across enterprise modernization initiatives supporting the Department of War. Based in Reston, VA, this role blends...
$250k
...Concept Solutions, LLC (CS) is seeking an experienced Principal Software Engineering Lead to provide technical leadership, establish engineering standards, and drive software quality across enterprise application modernization initiatives supporting the Department of...Full timeContract workFor contractorsImmediate startRemote workMonday to Friday- ...international project travel may be required. Active TS/SCI Clearance Required Position Summary GC2IT is seeking a Senior Software Engineer - Analytics Services Lead to own the design, delivery, performance, and operational evolution of analytics services for a large-scale,...SeniorFull timeContract workWork at officeRemote work
- ...Bespoke Technologies, Inc. in Reston, VA is seeking a Senior Principal with active Poly clearance to design, implement, and secure enterprise OCI networking solutions. You will integrate cloud environments with agency networks, build VCNs, subnets, and security controls...Senior
$107.9k - $195.05k
The Leidos Health & Civil Sector is seeking a Software Engineering Lead to support the National Institutes of Health (NIH), National Cancer Institute (NCI), Center for Biomedical Informatics and Information Technology (CBIIT) Business Information Technology Solutions Development...Full time- The Software EngineeringTechnical Lead is responsible for leading a team consisting of 4-5 third-party Software Engineers. The successful candidate will establish patterns, best practices, and underlying architectures for the SDP platform that the rest of the team can build...
- ...Clarity Innovations in Herndon, VA is seeking a dynamic software engineer who bridges strategic infrastructure design and hands-on development. You will work with Linux systems, manage VMs and containers, and help deploy container orchestration at mission scale. You will...Senior
$154k - $230k
...Chain (MDTC) accountable to lead continuous improvement of operations... ...Impact:We build and enhance software applications required for... ...analysis, automation, and engineering productivity. Establish secure... ...with stakeholders ranging from senior leadership to product team...Local area$154k - $230k
...Join an organization where your work contributes to a greater purpose.Position Overview:We are seeking an experienced Software Engineering Tech Lead to provide hands-on technical leadership for the design, delivery, and modernization of Multifamily application platforms...Work experience placementLocal area- Senior Software Engineer TS/SCI FSPDepartment: Government Customer- HerndonLocation: Herndon, VAACTIVE TS/SCI CLEARANCE with FS poly REQUIRED TO BE CONSIDERED FOR THIS POSITIONSenior Software Engineer:Analyzes user interfaces, maintain hardware and software performance...Senior
- ...Software Engineer IVWe are looking for a Software Engineer to join our diverse team at our Herndon, VA, office. The candidate will work within a cross-functional Agile Scrum Team primarily focusing on building and maintaining systems running in a containerized environment...SeniorWork at office
$150k - $200k
OverviewAs a Steampunk Salesforce Technical Lead, you will work with Technical/Solutions Architects and Business Analysts to translate... ...development. Able to translate user stories into working software with minimal oversight. Preferred: Unique combination of being...Senior- ...This position requires an active TS/SCI with Polygraph. We are seeking a versatile Senior Software Developer with expertise in secure software engineering. The ideal candidate will combine technical proficiency in development of tools and cyber security. The candidate...SeniorFull timeLocal areaRemote work
- Job DescriptionAs the Mobile Software Engineer Lead you will be the technical leader of a team of talented engineers. You will collaborate together... ...EEO guidelines.SummaryType: Full-timeFunction: Information TechnologyExperience level: Mid-Senior LevelIndustry: Medical Device
- ...GRVTY is seeking an experienced Lead LAN/WAN Engineer to design, analyze, and operate complex networking systems in a fast-paced environment. You will lead local- and wide-area networking initiatives, provide technical direction on projects, and guide teams through architectural...Local area
$209k - $238.5k
...Senior Lead Software Engineer, Marketing and Messaging Experimentation Are you driven to revolutionize intelligent platforms and build high-impact... ...experimentation, and hands‑on innovation with emerging tech stacks. Basic Qualifications: Bachelor’s Degree At...SeniorFull timePart timeInternshipLocal area$159k - $239k
...Portfolio and Risk Management is seeking a Quantitative Analytics Senior Tech Lead to develop and manage quantitative models, deliver analytics,... ...(e.g., Monte Carlo simulations, multi-scenario forecasting engines, cash-flow simulators).Our Impact:Drive quantitative research...SeniorLocal area$185k - $220k
...We’re seeking an experienced full stack software engineer to support work across the full... ...maintainable software solutions. Work with cloud tech stacks to perform data extraction,... ...related technology fields 3+ years of leading design or architecture (design patterns...SeniorFull timeFlexible hours$185k - $215k
...Position Summary Credence has an immediate need for a Senior AI Technical Lead to join our growing AI and Automation practice. In this role... ...-functional teams, shape technical strategy, and mentor engineers in a fast-paced, mission-driven environment. The ideal candidate...SeniorTemporary workImmediate startWorldwide$220k - $292k
...edge autonomy, AI, computer vision, sensor fusion, and networking technology to the military in months, not years.As a Mission Software Engineer, you will solve a wide variety of problems involving networking, autonomy, systems integration, robotics, and more, while...SeniorFull timeWork experience placementImmediate start
Do you want to receive more vacancies?
Subscribe and receive similar vacancies to Senior Software Engineer/Tech Lead. Be the first to apply!
- lead operating engineer Reston, VA
- lead engineer Reston, VA
- technical lead Reston, VA
- technical leader Reston, VA
- senior living Reston, VA
- senior associate vice president Reston, VA
- senior app developer Reston, VA
- senior application support engineer Reston, VA
- senior manager data analytics Reston, VA
- senior devops Reston, VA




