Sr. Software Engineer - CTJ - Poly
$119.8k - $234.7kMicrosoft Corporation
Job ID: 200039976Posted: 2026-06-16Location: United States, Virginia, RestonSalary: USD $119,800 - $234,700 per yearEmployment type: Full-TimeWork site: 3 days / week in-officeRole type: Individual ContributorTravel: Less than 25%Profession: Software EngineeringDiscipline: Software EngineeringCompany: MicrosoftOverviewSecurity represents the most critical priorities for our customers in a world awash in digital threats, regulatory scrutiny, and estate complexity. Microsoft Security aspires to make the world a safer place for all. We want to reshape security and empower every user, customer, and developer with a security cloud that protects them with end to end, simplified solutions. The Microsoft Security organization accelerates Microsoft’s mission and bold ambitions to ensure that our company and industry is securing digital technology platforms, devices, and clouds in our customers’ heterogeneous environments, as well as ensuring the security of our own internal estate. Our culture is centered on embracing a growth mindset, a theme of inspiring excellence, and encouraging teams and leaders to bring their best each day. In doing so, we create life-changing innovations that impact billions of lives around the world.Are you interested in working for on cutting-edge cloud security products? Would you like to be part of one of the world’s most advanced cyber-security solutions and protect millions of computers from thousands of active attack attempts, every month? Look no further than the Microsoft Defender engineering team. You will be building and delivering cloud solutions to meet the scale that few companies in the industry are required to support. Leveraging state-of-the-art technologies, you will be instrumental in delivering holistic protection within government environments. The Microsoft Defender team is responsible for delivering a constantly evolving set of services and solutions to meet the challenging landscape of our ever-evolving attackers.This is a combined DevOps team which provides leadership, direction, and accountability for cloud design, service architecture, engineering infrastructure, and data platform development. We are currently looking for Software Engineer II to join the team. You will help conduct business reviews and operate our production services. Collaboration skills will be required to work closely with other engineering teams to ensure services and systems are highly stable, meet performance Service level agreements (SLA), and meet the expectations of internal and external customers and users.Microsoft’s mission is to empower every person and every organization on the planet to achieve more. As employees we come together with a growth mindset, innovate to empower others and collaborate to realize our shared goals. Each day we build on our values of respect, integrity, and accountability to create a culture of inclusion where everyone can thrive at work and beyond.ResponsibilitiesThe team provides leadership, direction and accountability for application architecture, Cloud design, Infrastructure development and end to end implementation for our Sovereign and Government Clouds.Demonstrated collaboration skills will be required to work closely with other engineering teams to ensure services/systems are highly stable and performant and meet the expectations of internal and external customers and users.Build and improve services to be scalable and highly reliable.Help deliver and improve engineering systems and practices to deliver services in complex cloud environments.Contribute to design and automate service scale features and customer requirements.Investigate pre-production and production issues, implement, and deploy fixes.Participate in an on-call rotation (typically 24/7 for one week every 6-8 weeks) within a secure facility.Other: Embody our Culture and ValuesQualificationsRequired/minimum qualifications:Bachelor's Degree in Computer Science or related technical field AND 4+ years technical engineering experience with coding in languages including, but not limited to, C, C++, C#, Java, JavaScript, or PythonOR equivalent experience.Other Requirements:Security Clearance Requirements: Candidates must be able to meet Microsoft, customer and/or government security screening requirements are required for this role. These requirements include, but are not limited to the following specialized security screenings: The successful candidate must have an active U.S. Government Top Secret Clearance with access to Sensitive Compartmented Information (SCI) based on a Single Scope Background Investigation (SSBI) with Polygraph. Ability to meet Microsoft, customer and/or government security screening requirements are required pre-offer and post-hire for this role. Failure to maintain or obtain the appropriate U.S. Government clearance and/or customer screening requirements may result in employment action up to and including termination.Clearance Verification: This position requires successful verification of the stated security clearance to meet federal government customer requirements. You will be asked to provide clearance verification information prior to an offer of employment. Microsoft Cloud Background Check: This position will be required to pass the Microsoft Cloud background check upon hire/transfer and every two years thereafter. Citizenship & Citizenship Verification: This position requires verification of U.S citizenship due to citizenship-based legal restrictions. Specifically, this position supports United States federal, state, and/or local United States government agency customers and is subject to certain citizenship-based restrictions where required or permitted by applicable law. To meet this legal requirement, citizenship will be verified via a valid passport, or other approved documents, or verified US government clearance.Preferred Qualifications:Master's Degree in Computer Science or related technical field AND 6+ years technical engineering experience with coding in languages including, but not limited to, C, C++, C#, Java, JavaScript, or PythonOR Bachelor's Degree in Computer Science or related technical field AND 8+ years technical engineering experience with coding in languages including, but not limited to, C, C++, C#, Java, JavaScript, or PythonOR equivalent experience.Understanding and experience with CI/CD concepts and Git.4+ years of Windows / Linux hands on system experiencesExperience debugging issues ranging from the operating system, application, and all the way to the cloud.Experienced in solving operational issues in a scalable way.Ability to thrive with the ambiguity associated with working in a fast-paced and changing environment.Support a 24x7 live site support model for the services the team owns.Experience with Kubernetes, and the Kubernetes satellite technologiesSome experience with building and supporting large-scale production services, including logging, monitoring, alerting, and measuring reliability and availability.Proficient in at least one scripting language but knows when to move solutions into managed code.Experience with Azure DevOps and GitHub tooling.Demonstrated communication skills and ability to collaborate in a multi-disciplinary team consisting of Software Engineers, Program Managers, Security Researchers, and Data Scientists.Software Engineering IC4 - The typical base pay range for this role across the U.S. is USD $119,800 - $234,700 per year. There is a different range applicable to specific work locations, within the San Francisco Bay area and New York City metropolitan area, and the base pay range for this role in those locations is USD $160,200 - $261,000 per year. Certain roles may be eligible for benefits and other compensation. Find additional benefits and pay information here:This position will be open for a minimum of 5 days, with applications accepted on an ongoing basis until the position is filled.Microsoft is an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to age, ancestry, citizenship, color, family or medical care leave, gender identity or expression, genetic information, immigration status, marital status, medical condition, national origin, physical or mental disability, political affiliation, protected veteran or military status, race, ethnicity, religion, sex (including pregnancy), sexual orientation, or any other characteristic protected by applicable local laws, regulations and ordinances. If you need assistance with religious accommodations and/or a reasonable accommodation due to a disability during the application process, read more about requesting accommodations.
- ...WORK This senior role fosters collaboration with other senior engineers for the development of advanced data analytics solutions and... ...and opportunities. This Program is seeking a full stack software engineer to develop, maintain and enhance complex and diverse...Senior
$102.1k - $202.2k
...type: Individual ContributorTravel: Less than 25%Profession: Software EngineeringDiscipline: Software EngineeringCompany: MicrosoftOverviewAre... ..., every month? Look no further than the Microsoft Defender engineering team. Defender is looking for a Software Engineer II to join...SuggestedOngoing contractLocal area3 days per week$85.4k - $168.1k
...siteRole type: Individual ContributorTravel: Less than 25%Profession: Software EngineeringDiscipline: Software EngineeringCompany:... ...Cloud Identity team is looking for an early in career Software Engineer to join the Authentication team. This individual will be responsible...SuggestedOngoing contractLocal area- ...forefront of cutting-edge technology and engineering.LM SPACE: WHAT WE'RE DOINGSpace is a... ...Paragon Program is seeking a talented level 3 Software Engineer with a TS/SCI clearance to work... ...with willingness to obtain a poly.Desired Skills:• Domain knowledge of mission...SeniorFull timeWork at officeRemote workFlexible hours
- ...As a Software Development Engineer with a focus on Identity and Access Management (IDAM), you will leverage your expertise in both software development... ...TS/SCI clearance and ability to obtain and maintain a CI poly. Must meet DoD 8570 IAT Level II requirements...SuggestedFull timeTemporary workRelocation package
- ...Overview The Software Engineer will work as part of an agile development team to design, develop, test, and maintain applications supporting... ...what it takes? Must possess an active TS/SCI clearance with Poly on day one of employment ~• Strong full‑stack development...Senior
$142.8k - $274.8k
...siteRole type: People ManagerTravel: Less than 25%Profession: Software EngineeringDiscipline: Software EngineeringCompany: MicrosoftOverviewJoin... ...U.S. Government and sovereign cloud customers. As a Software Engineering Manager on the MSC team, you will partner with engineering...Ongoing contractLocal area$142.8k - $274.8k
...officeRole type: People ManagerTravel: Less than 25%Profession: Software EngineeringDiscipline: Software EngineeringCompany:... ...MicrosoftOverviewMicrosoft has an exciting opportunity for a Principal Software Engineer Manager to lead engineering teams responsible for developing,...Ongoing contractLocal area3 days per week- 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
- ...highly motivated candidate to join our talented Team.Job Title: Sr. Software EngineerLocation(s): Reston, VAJob Summary:Performs complex... ..., trends, and best practices. Mentor junior software engineers.Required Qualifications:5-8 years’ experience with software development...SeniorWork experience placement
$135k - $216k
ResponsibilitiesPeraton is seeking a Senior Software Engineer in our Herndon, VA location to support a large software development classified... ...protected by law.Job SummaryRequisition ID: 2026-168417Position Category: Information TechnologyClearance: Top Secret/SCI w/PolySeniorFull timeContract workShift work$129.52k - $212.78k
...have offices in nine countries and can insert advertisements around the world.Job SummaryFreeWheel is looking for passionate Software Engineers to help design, build and support our high-quality, innovative video advertising platform. This position is virtual based. FreeWheel...SeniorFull timeNight shiftWeekend work- ...Position is located in Chantilly, Virginia, and requires an active TS/SCI Poly clearance be in place PRIOR to application The Front-End Software Engineer will design and develop complex new software products, or make significant enhancements to existing software. The...Full time
$141.85k - $212.78k
...have offices in nine countries and can insert advertisements around the world.Job SummaryFreeWheel is looking for passionate Sr. Software Engineers to help design, build and support our high-quality, innovative video advertising platform. This position is based in New...SeniorFull time$206k
Sr. Splunk Engineer - TS/SCI with CI Poly Full Time • Chantilly, VA We are seeking a highly skilled Sr. Splunk Engineer to join a cybersecurity team supporting federal managed and advanced services. This role is responsible for implementing, managing, and optimizing the...SeniorFull timeWork experience placementRemote workWork from home$102.1k - $202.2k
...type: Individual ContributorTravel: Less than 25%Profession: Software EngineeringDiscipline: Software EngineeringCompany: MicrosoftOverviewSecurity... ..., every month? Look no further than the Microsoft Defender engineering team. You will be building and delivering cloud solutions to...Ongoing contractLocal area3 days per week- .... As a recognized leader in providing Information Technology, Engineering Services, Program Management, and Consulting Services to the U... ...achieve their most critical objectives.Solerity is seeking a Software Engineer to support a mission-focused organization responsible...For contractorsRemote workFlexible hours
- ...Sr. Software Engineer This position requires a BA/BS in Computer Science, Information Systems, Information Technology or related field with 7+ years of prior experience in software development, Data Engineering and Business Intelligence OR equivalent experience....SeniorWork experience placement
- ...Job Title: Sr Software Engineer Duration: 06 Months Location: Reston, VA (Remote) Job Description: PURPOSE: ~ Responsible for maintaining, modifying, and executing testing plans, test cases, low-level automated test scripts, and test scenarios. The position...SeniorWork experience placementRemote work
- ...details below.This position requires an active U.S. Government Security Clearance at the TS/SCI with CI poly level.We are seeking a Senior Front-End Software Engineer to support the development and modernization of a mission-critical big data analytics platform for a...SeniorFull timeWork at office3 days per week
- ...The Contractor team shall provide systems engineering, custom application development, database administration and operations and maintenance... ...packaging, system maintenance and troubleshooting for software and virtual infrastructure (cloud) components to maintain sustainability...Full timeFor contractors
- ...operations. The Sponsor requires specialized skills in cloud engineering and full stack development. WORK REQUIREMENTS: Full Stack Development... ...Support – HRR: Yes • The Contractor shall participate in software development efforts through all aspects of the software...Full timeFor contractorsWork at officeImmediate startRemote work
- ...Senior Software Engineer – Herndon, VA TS/SCI with Poly At Bcore, our strength comes from how we deliver impact to the mission. Whether it’s architecting critical IT solutions, producing actionable intelligence, or developing cutting‑edge technology, we succeed because...Senior
- ...technologies to ensure that scientists and engineers will be able to fully utilize modern HPC... ...automation/deployment issues• Install software libraries functioning in RHEL/SE Linux environment... ...• Security+ Certification•TS/SCI with CI Poly security clearance required to...Full timeContract workWork at officeRemote workMonday to FridayFlexible hours
$141.85k - $212.78k
...channels. As a global company, we have offices in nine countries and can insert advertisements around the world.Job SummaryThe Sr Software Engineer - Ad Tech & Distributed Systems is responsible for the availability, latency, performance, efficiency, change management,...SeniorFull time$176.9k - $332.4k
...talent and redefine what’s possible.Job Description:The Lead RF Software Engineer performs the following technical tasks as a leader in the... ...DSP development and personnel management,Active TS/SCI with CI Poly,Background in design, development, test, and integration of...SeniorFull timeWork experience placementFor subcontractor- ...analysis, design, implementation, and maintenance of Securiport’s software solutions, training, and technical support to the field... ...ecosystem. You will collaborate with senior developers, DevOps engineers, and data experts in an Agile team environment. This is a...SeniorFull timeContract workRemote work
- ...We are seeking one (1) Software Engineer to provide software development support for MOON 1998 . This position is in Chantilly .... ...AWS Cloud Development Kits (CDK) Active TS/SCI w/ FS Poly Demonstrated experience with Systems Administration Demonstrated...Full time
- ...Job Description Job Description Position: Software Engineer LCAT: Senior Location: Reston, Virginia This position is contingent... .... Required clearance: TS/SCI with willingness to take CI poly. Candidates with current CI poly taken within the past seven...SeniorTemporary workFlexible hours
- ...Job Description Job Description Senior Software Engineer JOB DESCRIPTION: The Software Engineer will design and develop complex new software products, or make significant enhancements to existing software. The ideal candidate is a hands-on developer with significant...Senior
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