3,294+ Lead Python Programming Software Engineer Level 4 Jobs in Fairfax, USA — Local Employers Hiring June 2026

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Lead Python Programming Software Engineer – Level 4

RELOCATION ASSISTANCE: Relocation assistance may be available CLEARANCE REQUIRED FOR START: Yes CLEARANCE TYPE: SCI TRAVEL: Yes, 10% of the Time**Description** At Northrop Grumman, our employees have incredible opportunities to work on revolutionary systems that impact ...

Software Engineer – Level 3 or 4

RELOCATION ASSISTANCE: Relocation assistance may be available CLEARANCE REQUIRED FOR START: Yes CLEARANCE TYPE: SCI TRAVEL: Yes, 10% of the Time**Description** At Northrop Grumman, our employees have incredible opportunities to work on revolutionary systems that impact ...

Systems Engineer Level 4 Engineering Coordinator

RELOCATION ASSISTANCE: No relocation assistance available CLEARANCE REQUIRED FOR START: Yes CLEARANCE TYPE: SCI TRAVEL: Yes, 10% of the Time**Description** At Northrop Grumman, our employees have incredible opportunities to work on revolutionary systems that impact peo ...

Mechanical Engineer 4

**Company Overview**Check out this video and find out why our team loves to work here! ( Us! CDM Smith – where amazing career journeys unfold.**Imagine a place committed to offering an unmatched employee experience. Where you work on proj ...

Software Engineer

Job Title: Software Engineer – Data and Signal ProcessingJob DescriptionThis role focuses on designing, implementing, and delivering high‑quality software for data processing and signal processing systems. You will work across the full software development lifecycle in a Linux environment, using C, C++, ...

Cloud Engineer (Cloud Engineer 4)

Requisition Number: 27364 Required Travel: 0 - 10% Employment Type: Full Time/Salaried/Exempt Anticipated Salary Range: $137,510.00 - $194,443.00 Security Clearance: TS/SCI Level of Experience: Senior This opportunity resides with Warfare Systems (WS), a busin ...

(SME)Senior Kubernetes Architecture Engineer

-- Fully Remote -- USC(U.S. citzen) Only -- Available for W2 or 1099 As a Senior Software Engineer, you will play a significant part in leading the rearchitecting efforts of our existing monolithic payment system to a cloud-native architecture, leveraging modern cloud technologies and best practices.< ...

System Integration/Testing Engineer Level 4 (Sign On 10K)

**Description:** Space is a critical domain, connecting our technologies, our security and our humanity. While others view space as a destination, we see it as a realm of possibilities, where we can do more — we can innovate, invest, inspire and integrate our capabilities to transform the future.At Lockhee ...

Enterprise Vulnerability Management Lead (Engineer Info Assurance 4)

Requisition Number: 27367 Required Travel: 0 - 10% Employment Type: Full Time/Salaried/Exempt Anticipated Salary Range: $128,887.00 - $184,124.00 Security Clearance: Secret Level of Experience: Senior This opportunity resides with Warfare Systems (WS), a busin ...

Principal / Sr Principal Cyber Software Engineer

RELOCATION ASSISTANCE: Relocation assistance may be available CLEARANCE REQUIRED FOR START: Yes CLEARANCE TYPE: Polygraph TRAVEL: Yes, 10% of the Time**Description** At Northrop Grumman, our employees have incredible opportunities to work on revolutionary systems that ...

Senior Software Engineer

**Req ID:** RQ222852**Type of Requisition:** Regular**Clearance Level Must Be Able to Obtain:** Top Secret/SCI**Public Trust/Other Required:** None**Job Family:** Software Engineering**Skills:**Automated Testing,Continuous Integrations,Software Development Life Cycle (SDLC)**Expe ...

DevSecOps Software Engineer

**Job Description** At Boeing, we innovate and collaborate to make the world a better place. We’re committed to fostering an environment for every teammate that’s welcoming, respectful and inclusive, with great opportunity for professional growth. Find your future with us. The Boeing Company is ...

RF Systems Architect Engineer

Basic QualificationsEducation Requirements:Requires a Bachelor’s degree in Systems Engineering, or a related Science, Engineering or Mathematics field. Also requires 10+ years of job-related experience, or a Master's degree plus 8 years of job-related experience. Agile exper ...

Agile Product Owner Level 3 or 4

RELOCATION ASSISTANCE: No relocation assistance available CLEARANCE REQUIRED FOR START: Yes CLEARANCE TYPE: SCI TRAVEL: Yes, 10% of the Time**Description** At Northrop Grumman, our employees have incredible opportunities to work on revolutionary systems that impact peo ...

Cloud Application Architect (Node.js and React.js) Remote

**Req ID:** RQ222507**Type of Requisition:** Regular**Clearance Level Must Be Able to Obtain:** None**Public Trust/Other Required:** BI Full 6C (T4)**Job Family:** Software Engineering**Skills:**AWS Cloud Computing,Linux,Node.js,React.js**Certifications:**AWS Certified Soluti ...

Agentic AI Engineer

**Req ID:** RQ217958**Type of Requisition:** Regular**Clearance Level Must Be Able to Obtain:** None**Public Trust/Other Required:** None**Job Family:** Data Science and Data Engineering**Skills:**AI Systems,Artificial Intelligence (AI),Data Science,Machine Learning (ML),Python (Prog ...

Lead Data Engineer

**Lead Data Engineer** **Category:** Software Development/ Engineering **Main location:** United States, Virginia, Fairfax **Position ID:** J0326-3022 **Employment Type:** Full Time **Position Description:** As a Lead Data Engineer, you will lead a team of da ...

Senior Software Test & Verification Lead

The Boeing Company is seeking a Senior Software Test & Verification Engineer to support the Denali Software team in Herndon, VA. This role focuses on ensuring software quality and functionality from concept to delivery. The ideal candidate will have substantial experience in software test and verification. B ...

Space Principal/ Sr. Principal Engineer Systems

RELOCATION ASSISTANCE: Relocation assistance may be available CLEARANCE REQUIRED FOR START: Yes CLEARANCE TYPE: SCI TRAVEL: Yes, 10% of the Time**Description** At Northrop Grumman, our employees have incredible opportunities to work on revolutionary systems that impact ...

Utility Bill Audit and Optimization Lead

TEOCO's Audit team is seeking a smart, self-motivated, and collaborative candidate. This is a great opportunity to gain or build upon experience in consulting, developing a foundation of utility invoice knowledge and learning software tools.Responsibilities:Candidate will lead a small team of in ...

AI/ML Engineer

**AI/ML Engineer** **Category:** Software Development/ Engineering **Main location:** United States, Tennessee, Knoxville **Alternate Location(s):** United States, Louisiana, LafayetteUnited States, Texas, BeltonUnited States, Virginia, LebanonUnited States, Virginia, Fairf ...

System Integration/Testing Engineer Level 5 (Sign On 10K)

**Description:** Space is a critical domain, connecting our technologies, our security and our humanity. While others view space as a destination, we see it as a realm of possibilities, where we can do more — we can innovate, invest, inspire and integrate our capabilities to transform the future.At Lockhee ...

Talent Management Lead (Org Development Rep 4) 27284

Requisition Number: 27284 Required Travel: 0 - 10% Employment Type: Full Time/Salaried/Exempt Anticipated Salary Range: $101,196.00 - $140,000.00 Security Clearance: None Level of Experience: Mid Meet HII’s Mission Technologies DivisionOur team of more tha ...

Cloud Security Information Analyst

**Req ID:** RQ222731**Type of Requisition:** Regular**Clearance Level Must Be Able to Obtain:** None**Public Trust/Other Required:** Other**Job Family:** Cyber and IT Risk Management**Skills:**Cloud Engineering,Cybersecurity,Software Applications**Experience:**5 + years of re ...

Principal Software Front End Engineer

**Req ID:** RQ223153**Type of Requisition:** Regular**Clearance Level Must Be Able to Obtain:** None**Public Trust/Other Required:** Other**Job Family:** Software Engineering**Skills:**Problem Solving,Software Solutions,Solutions Development**Experience:**5 + years of related ...

Remote Top Secret Software Engineer

Job Description Our client is looking for a remote Top Secret Software Engineer to support a large federal contract. This individual will be responsible for:Participate in all phases of the Software Development Lifecycle (SDLC), including requirements analysis, design, develop ...

Lead DevSecOps Systems Engineer

**Req ID:** RQ222673**Type of Requisition:** Regular**Clearance Level Must Be Able to Obtain:** None**Public Trust/Other Required:** BI Full 6C (T4)**Job Family:** IT Infrastructure and Operations**Skills:**Amazon Web Services (AWS),CI/CD,DevSecOps,Kubernetes**Experience:**8 ...

Senior Software Developer

**Req ID:** RQ221033**Type of Requisition:** Regular**Clearance Level Must Be Able to Obtain:** None**Public Trust/Other Required:** Other**Job Family:** Software Engineering**Skills:**Problem Solving,Software Solutions,Solutions Development**Experience:**5 + years of related ...

Construction Representative 4

**Company Overview** Check out this video and find out why our team loves to work here! ( **Join Us! CDM Smith – where amazing career journeys unfold.** Imagine a place committed to offering an unmatched employee experience. Wher ...

Systems Engineer Level 5 Engineering Coordinator

RELOCATION ASSISTANCE: No relocation assistance available CLEARANCE REQUIRED FOR START: Yes CLEARANCE TYPE: SCI TRAVEL: Yes, 10% of the Time**Description** At Northrop Grumman, our employees have incredible opportunities to work on revolutionary systems that impact peo ...

Principal Systems Engineer

Job DescriptionA defense electronics organization is seeking a Principal Systems Engineer to support its Space Electronic Systems (SES) division. This role is responsible for leading cross‑disciplinary engineering teams in the development and delivery of advanced, high‑reliability space‑based electronic syst ...

Information System Security Officer (Engineer Info Assurance 4)

Requisition Number: 27373 Required Travel: 0 - 10%Employment Type: Full Time/Salaried/ExemptAnticipated Salary Range: $128,887.00 - $184,124.00 Security Clearance: Secret Level of Experience: Senior This opportunity resides with Warfare Systems (WS ...

Information System Security Officer (Engineer Info Assurance 4)

Requisition Number: 27373 Required Travel: 0 - 10% Employment Type: Full Time/Salaried/Exempt Anticipated Salary Range: $128,887.00 - $184,124.00 Security Clearance: Secret Level of Experience: Senior This opportunity resides with Warfare Systems (WS), a busin ...

Zero Trust Compliance Officer (Engineer Info Assurance 4)

Requisition Number: 27378 Required Travel: 0 - 10% Employment Type: Full Time/Salaried/Exempt Anticipated Salary Range: $128,887.00 - $184,124.00 Security Clearance: Top Secret Level of Experience: Senior This opportunity resides with Warfare Systems (WS), a b ...

Senior Full Stack Engineer

**Req ID:** RQ222448**Type of Requisition:** Regular**Clearance Level Must Be Able to Obtain:** None**Public Trust/Other Required:** Other**Job Family:** Software Engineering**Skills:**Angular UI,Apache Tomcat,Hibernate ORM,Java (Programming Language),Spring Framework**Experience ...

Principal /Sr. Principal Cyber Systems Engineer

RELOCATION ASSISTANCE: Relocation assistance may be available CLEARANCE TYPE: Polygraph TRAVEL: Yes, 10% of the Time **Description** At Northrop Grumman, our employees have incredible opportunities to work on revolutionary systems that impact people's lives around the world ...

Senior UI Developer

**Req ID:** RQ222398**Type of Requisition:** Regular**Clearance Level Must Be Able to Obtain:** None**Public Trust/Other Required:** NACI (T1)**Job Family:** Software Engineering**Skills:**Communication,JavaScript API,Vue.js,Web Development**Experience:**10 + years of related ...

Lead Substation Protection & Control Engineer

**Company Overview**Check out this video and find out why our team loves to work here! ( Us! CDM Smith – where amazing career journeys unfold.**Imagine a place committed to offering an unmatched employee experience. Where you work on proj ...

Lead Power System Engineer 7

**Company Overview**Check out this video and find out why our team loves to work here! ( Us! CDM Smith – where amazing career journeys unfold.**Imagine a place committed to offering an unmatched employee experience. Where you work on proj ...

Fire Alarm Field Engineer II

Overview **About M.C. Dean** M.C. Dean is Building Intelligence. We design, build, operate, and maintain cyber-physical solutions for the nation’s most mission-critical facilities, secure environments, complex infrastructure, and global enterprises. With over 7,000 employees, our capabilities ...

Sr. QA Analyst

DescriptionChainbridge Solutions Inc. is seeking an energetic and highly motivated individual to join us as a Sr. QA Analyst supporting agile software development teams where we define quality assurance as adding value; considering continuous improvements at every level and being mindful of what ha ...

Golang & Java Developer (AWS)

Senior Software / Cloud Engineer Location:Remote (Within the US) Employment Type: Long-term Contract Role Summary We are seeking a highly skilled Senior Software / Cloud Engineer to lead the migration of legacy systems and the modernization of mission-critical APIs.This role ...

Strategic Data Scientist Manager, Upmarket Valuations

Hobbsnews is seeking a Manager, Data Scientist specializing in Upmarket Acquisitions Valuations. This role involves leading efforts in machine learning model development and working with cross-functional teams to achieve business objectives. The ideal candidate will have a strong background in data analytics ...

Senior Cybersecurity Engineer / Offensive Security Lead

Apogee Global RMS is seeking a Senior Cybersecurity Engineer / Offensive Security Lead to support high‑visibility federal and IC programs. This role is designed for operators who bring hands‑on offensive tradecraft, current certifications, and recent red‑team experience in mission‑critical en ...

On Call AI Solutions Specialist REMOTE

Description ICF is seeking a technically skilled On-Call AI Solutions Specialist to for Child Welfare Information Gateway, a service of the Children’s Bureau (CB), Administration for Children and Families (ACF), US Department of Health and Human Services (DHHS) that centralizes resources for the nation ...

On Call AI Solutions Specialist REMOTE

Description ICF is seeking a technically skilled On-Call AI Solutions Specialist to for Child Welfare Information Gateway, a service of the Children’s Bureau (CB), Administration for Children and Families (ACF), US Department of Health and Human Services (DHHS) that centralizes resources for the nation ...

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