3mo
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Blockchain Developer
Manassas or Brussels
$67k-$124k/yr OnsiteFull Time
2+ YOEBachelor's or Master's in CS/Software Engineering; 2+ years blockchain experience; Ethereum/Solidity, Hyperledger Besu, Corda; cryptography, distributed systems; front-end/back-end languages; cloud and containers; REST APIs, gRPC, microservices; Git/CI/CD; strong communication.
Solidity, Ethereum, Hyperledger Besu, Corda, Cosmos, Canton, PKI, REST, gRPC, Git, CI/CD, JavaScript/TypeScript, Python, Go, Java, C++, AWS, Azure, Google Cloud, Docker, Kubernetes
2mo
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Blockchain Developer
Manassas, Virginia, United States
$122k-$226k/yr OnsiteFull Time
10+ YOE10-12 years in systems development; strong blockchain, smart contracts, and distributed systems skills.
Hardhat, Truffle, Foundry, Solidity, Rust, JavaScript, TypeScript, Go, Python
1d
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Senior Python Developer
Chantilly, Virginia, United States
$121k-$189k/yr OnsiteFull Time
Active TS/SCI clearance with CI polygraph ability, US citizenship, solid Python development, full-stack experience (Django/React), ability to rapidly prototype, and degree with extensive experience per posted equivalencies.
Python, Django, React, JavaScript, Docker, Bash, PowerShell, PostgreSQL, SANS SIFT Workstation
3mo
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Senior Solid-State Laser Engineer / Technical Lead
Herndon, Virginia, United States
OnsiteFull Time
5+ YOE5+ years in solid-state laser development; leadership in technical efforts or small teams; expertise in laser resonator design, gain media physics, nonlinear optics, and frequency conversion; Zemax modeling; U.S. citizenship and ability to obtain security clearance.
Zemax, Optical Modeling Tools
2mo
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Principal Engineer Manufacturing
Rocket Center, West Virginia, United States
$89k-$134k/yr OnsiteFull Time
3+ YOESTEM degree or HS + experience (3–9+ years), CNC programming and setup, CAD/CAM (AutoCAD, Mastercam, Solid Works, NX), SPC, GD&T, Excel/Word/PowerPoint/Outlook, machine shop experience, US citizenship.
CNC, CAD/CAM, AutoCAD, Mastercam, Solid Works, NX, SPC, Microsoft Excel, Microsoft Word, Microsoft PowerPoint, Microsoft Outlook, ANSI/ASME Y14.5M-1994
2mo
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Blockchain Test Engineer - Hybrid
Manassas or Brussels
$67k-$124k/yr HybridFull Time
Bachelor's degree; blockchain/testing experience; programming skills; test automation; CI/CD familiarity.
Selenium, Playwright, Jest, Truffle, Hardhat, Jenkins, GitLab CI, Python, JavaScript, Go, Java, Solidity
1mo
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Scientist III, Analytical R&D
Chantilly, Virginia, United States
OnsiteFull Time
3+ YOEMaster's (5+ yrs) or PhD (3+ yrs) in chemistry/analytical chemistry, experience in small-molecule solid oral dosage analytical development, hands-on HPLC/GC/KF/MS/dissolution/spectroscopy, GMP knowledge, supervisory experience, able to stand long shifts and lift 40 lbs.
HPLC, GC, KF, MS, dissolution, spectroscopy, particle size
3w
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Solid Rocket Motors Engineering, Principal
Arlington or Cumberland or Huntsville or Orlando or Troy
$151k-$301k/yr RemoteFull Time
15+ YOEBachelor's in aerospace/mechanical engineering, 15+ years SRM/propulsion experience, CAD/FEA/CFD proficiency, DoD Secret clearance ability, strong thermodynamics/structural knowledge, mentoring and testing experience.
CAD, Finite Element Analysis (FEA), Computational Fluid Dynamics (CFD), PLM
2mo
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Formulation Scientist/Sr. Scientist, R&D (Solid Orals)
Chantilly, Virginia, United States
OnsiteFull Time
2+ YOEPhD or MSc in pharmaceutical sciences with relevant years of experience; strong skills in QbD, DOE, and regulatory compliance.
HPLC, Spectrophotometry, Dissolution, Viscometer, Wurster Coating, Tablet Coating, Compression, Blending, Encapsulation, DOE