Software Engineer
Cornerstone Defense
Title: Senior SoftwareEngineer Location: Chantilly, VA Clearance: Active TS/SCI w/ Polygraph needed to apply Company Overview Cornerstone Defense is the Employer of Choice within the Intelligence, Defense, and Space communities of the U.S. Government. Realizing early on that our most prized assets are our employees, we continually focus our attention on improving the overall work/life experience they have supporting the mission. Our Team is pushed every day to use their industry leading knowledge to provide end-to-end solutions to combat our nation’s toughest and most secure problems. If you are looking for a place to not only be professionally challenged, but encouraged and supported by a company that cares, don’t look any further than Cornerstone Defense. As a Senior Software Engineer, you will play a key role in designing, developing, testing, and deploying new features for a critical data transmission application that directly supports the US intelligence community. You will collaborate with a small, highly skilled team to build a robust, secure system that serves as the interface between multiple enterprise networks. This application plays a vital role in transmitting critical intelligence data from field sources to downstream systems. Your contributions will be instrumental as the application evolves into the central hub for all NiFi channels. Responsibilities Design, develop, and implement new features for a data transmission application using Java and Apache NiFi. Collaborate with cross-functional engineering teams to integrate the application with multiple enterprise networks, ensuring secure and efficient data flow. Contribute to the technical roadmap, advancing the application into the central transmission hub for NiFi channels supporting the US intelligence community. Provide mentorship to junior engineers and foster a collaborative, high-performance team environment. Ensure high-quality code by adhering to best practices for testing, continuous integration, and code reviews. Work within Agile development frameworks to iterate and deliver software solutions that meet mission-critical objectives. Required Qualifications Active TS/SCI security clearance with relevant polygraph. Minimum of 12 years of software development experience with a BS/BA degree or at least 10 years of experience with an MS/MA degree. At least 4 years of Java or Python experience. Demonstrated experience working in a Linux environment. Proven expertise in AWS development, including knowledge of S3 buckets and EC2 instances. Experience working within Agile development methodologies. Desired Qualifications Experience with Apache NiFi, especially in data flow management and integration. Familiarity with DevSecOps tools such as Git, Jenkins, Puppet, Chef, Ansible, Terraform, etc. Experience with AWS SQS and Apache Kafka for message queuing and stream processing. #J-18808-Ljbffr
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$146.2k - $228.4k
...Responsibilities Noblis is seeking a Software Developer with an active Top Secret/SCI clearance and Polygraph , and expertise... ...AI/ML-driven capabilities, advanced analytics tools, and data engineering services that enable cyber targeting, cyber operations, cyber...SuggestedFull timeContract workPart timeLocal areaRemote work$3,000 per month
...Overview Acuity is growing and looking to hire an additional Software Engineer / Full Stack Developer supporting a backend development team focused on middleware and backend services. Why Acuity? We’re building more than careers—we’re building a place people...SuggestedWork from home- ...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...Suggested
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- ...Overview Software Engineer – Chantilly, 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...
- ...to bring mobile broadband to billions, pull hundreds of millions out of poverty, and save countless lives. What You’ll Do As a Software Engineer at Lynk, you will be at the heart of designing, building, and operating the software that powers our satellites and ground...Full timeInternship
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...Software Engineer The Opportunity: As a full stack developer, you can resolve a problem with a complete end-to-end solution in a fast, agile environment. If you’re looking for the chance to not just develop software, but to help create a system that will make a difference...Full timeContract workPart timeLocal areaRemote work$94.4k - $198.2k
...Job Title: Junior Software Engineer Job Category: Engineering Time Type: Full time Minimum Clearance Required to Start: TS/SCI with Polygraph Employee Type: Regular Percentage of Travel Required: None We are seeking a high-performing, curious, and motivated Junior Software...Full timeInternship$94.4k - $198.2k
...Job Title: Junior Software Engineer Job Category: Engineering Time Type: Full time Minimum Clearance Required to Start: TS/SCI with Polygraph Employee Type: Regular Percentage of Travel Required: None Type of Travel: None We are seeking a high-performing, curious, and...Full timeContract workWork experience placementInternshipFlexible hours- ...Software Engineer LOCATION Chantilly, VA 20151 CLEARANCE TS/SCI Full Poly (Please note this position requires full U.S. Citizenship) KEY SUMMARY We are seeking a talented and motivated Software Engineer to join our team and contribute to the development of cutting‑edge...Temporary workFor contractorsImmediate startFlexible hours
- ...Job Title: Software Engineer Location: Northern Virginia (multiple locations) At REDLattice, we are a global leader in delivering cutting‑edge technical cybersecurity products and services. We are driven by mission‑critical and innovative work that directly contributes...
- ...BT-331 – Software Engineer – SME Location: Chantilly, VA (fully on-site, no remote option) Please do NOT apply if you do not have an active Poly clearance. Those without a Poly will not be considered. Key Tasks Participate in all Lean Agile scrums, sprints and grooming...For contractorsRemote work
- ...Job ID: 2613376 Location: Chantilly, VA, US Date Posted: 2026-06-04 Category: Software Subcategory: SW Engineer Schedule: Full-Time Shift: Day Job Travel: No Minimum Clearance Required: TS.SCI_wPoly Clearance Level Must Be Able to Obtain: None Potential for Remote Work...Full timeFor contractorsImmediate startRemote workShift work
- ...situational awareness for soldiers and analysts by integrating software development with geospatial intelligence. Our projects range from... ...to obtain CI Polygraph US Citizenship Required As a Software Engineer, you will... Lead full-stack software development of enterprise...Immediate start
$135k - $175k
...service for cloud‑agnostic deployments and automation. It's designed to automate data management and security. We are seeking a Software Engineer passionate about formulating new solutions, to join our on‑site team in Northern Virginia. We live a team‑driven approach...Full timeImmediate startFlexible hours- ...Edgesource is an Equal Opportunity employer committed to offering competitive salaries and benefits packages for all employees. Software Engineer Location Chantilly, VA Employment Type Full time Location Type On‑site Department Engineering Software Engineering Company...Full timeFor contractorsRemote workFlexible hours
$7.5k
...Jr. Software Engineer Location: Chantilly, VA Security Clearance Required: Security Clearance with appropriate Polygraph Job Description RealmOne was built on the principle that people matter first and foremost. We believe in providing a strong work/life balance...Contract workWork experience placementImmediate startFlexible hours- ...Software Engineer Chantilly, Virginia, United States What Impact You'll Have GRVTY is a member of 100% of the winning teams for the largest technology program in the Intel Community. We've been supporting this customer on many different sub-projects of this...Immediate startRemote work
$107.9k - $195.05k
...Description This position is for a software engineer to join a small development team. This engineer will be responsible for participating in all aspects of the software development life cycle including requirements definition and analysis, coding and implementation...Work experience placementLocal areaImmediate startFlexible hours- ...Software Engineer 4 The Software Engineer Level 4 will support advanced technical efforts to analyze, assess, develop, and conduct vulnerability research for devices utilizing Apple iOS and Google Android (and variant) operating systems. This position will be based...Contract workWork experience placement
$135k - $175k
...Software Engineer At Jacobs, we're challenging today to reinvent tomorrow by solving the world's most critical problems for thriving cities, resilient environments, mission-critical outcomes, operational advancement, scientific discovery and cutting-edge manufacturing...Immediate startFlexible hours- ...Software Engineer Required: Active TS/SCI with Full Scope Polygraph Location: Full-time, onsite in Chantilly, VA We have an immediate need for a mission-driven Software Engineer who thrives in modern Lean Agile environments and enjoys building high-impact capabilities...Full timeImmediate start
- ...Northstrat is seeking a Jr, Mid, Sr, and SME Software Engineers to join our dynamic team. The ideal candidate will have a BS in Software Engineering, Computer Science, Information Systems or equivalent field. The ideal mid and senior candidates will also have experience...Full timeContract workWork experience placementFlexible hoursWeekend workWeekday work
- ...service for cloud-agnostic deployments and automation. It's designed to automate data management and security. We are seeking a Software Engineer passionate about formulating new solutions, to join our on-site team in Northern Virginia. We live a team-driven approach...Flexible hours
$92 per hour
...Software Engineer - Developer 3 (Contract) Chantilly, VA, United States (On-site) Contract (1 year) Published 1 day ago Software This posting is for a contract assignment and is not a full-time employment offer with Boeing. Candidates selected for roles will be employed...Hourly payFull timeContract work- ...Software Engineer Chantilly, VA RV-SWE-CHY-001 Looking for a full stack developer supporting a backend development team focused on middleware and backend services. Mandatory Skills: Intermediate to Expert level experience in Solr or Elasticsearch (minimum...
- ...Software Engineer V The Software Engineer Level 5 will serve as a subject matter expert leading advanced technical efforts to analyze, assess, develop, and deploy vulnerabilities and exploits for devices utilizing Apple iOS and Google Android (and variant) operating...Contract workWork experience placementRelocation
- ...This is a full-time position, and requires a TS/SCI/Full Scope Polygraph Clearance. 2HB Incorporated is seeking a Software Engineer to support its government customer in Chantilly, VA. 2HB Incorporated is seeking Software Engineer with the following skills...Full time
$158.86k - $214.92k
...Level Must Be Able to Obtain: Top Secret SCI + Polygraph Public Trust/Other Required: None Job Family: Software Engineering Job Qualifications: Skills: Agile Methodology, Large Language Model (LLM) Fine-Tuning, Microsoft Azure Certifications...Temporary workFor contractorsWork experience placementImmediate startRemote workWorldwideFlexible hours
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