243 c software developer jobs at 98 companies in Elkton, MD
🚀PromotedHiringCafe
Founding Full-stack / Product Engineer
Cupertino, CA, US
$130k-$300k/yrOn-SiteFull Time
HiringCafe: Building a 100× better job search engine to take on Indeed and LinkedIn.
Help us build a 100× better job search engine. We need a full-stack engineer with great taste, sharp fundamentals, and a track record of shipping polished product on React/Next.js plus a real backend (Firebase, Elasticsearch, Redis, Stripe).
Ghost Robotics: Developing autonomous quadrupedal robots for defense and industrial applications.
5+ YOEStrong modern C++ (C++17/20) production experience, Linux, Git, GitLab CI/CD, CMake, debugging, concurrency, and system design. Senior+ levels require 5+ years (Staff 8+, Lead 10+) and permanent U.S. residency; clear background checks required.
Koble: Develops and sells ERP software for small businesses.
3+ YOEMid-level C++ experience; knowledge of C#, Rust, and JScript; SQL/PostgreSQL; familiarity with Windows tech like COM/MFC; experience refactoring large codebases.
C++, C#, Rust, JScript, SQL, PostgreSQL, COM, MFC, Windows
Susquehanna International Group: Global quantitative trading firm specializing in proprietary financial markets.
5+ YOEBachelor's in CS/Engineering/Math, 5+ years C++ software development, strong performance/latency optimization skills, collaboration with traders/quant teams; financial markets familiarity a plus.
Green Expert Technology: Provides engineering and technical services for government defense programs.
3+ YOEBachelor's in CS/EE/CE, 3+ years software development experience, active DoD Secret clearance, familiarity with C/C++/C#/Java, Linux, version control, JIRA/Confluence, testing, and technical documentation.
5+ YOE5+ years systems analysis/application development (or 7+ with associate). Expert C#/.NET experience, RESTful API and service architecture, DevOps/CI/CD familiarity, exposure to Angular, strong analytical and communication skills.
Susquehanna International Group: Global quantitative trading firm providing proprietary financial market liquidity.
5+ YOEBachelor's in CS/Engineering/Math or equivalent, 5+ years C++ development experience, familiarity with financial markets a plus, strong performance optimization and latency-reduction skills, ability to work with traders/quants/infrastructure.
ITC Defense: Provides engineering and logistics services to defense organizations.
0+ YOEBachelor's in CS/IT/SE, active or obtainable Secret clearance, 0–4 years development experience, proficiency with C#, ASP.NET MVC, SQL Server, HTML, JavaScript, REST/Web Services, OOP, relational DBs, troubleshooting, and Agile teamwork.
NetAppNASDAQ: NTAP: Sells enterprise data storage and cloud management software.
12+ YOE12+ years software development experience with expertise in cloud-native, storage and data management; proficiency in NFS/SMB/iSCSI and programming in C/C++/Golang/Node.js/Python.
AVEVA: Industrial software for engineering and operational performance management.
3+ YOE3+ years software/product development; degree in engineering, computer science, math, or physics; experience with C#/.NET, C++, JavaScript; strong debugging, communication, and design skills.
Noblis: Nonprofit science, technology, and strategy firm supporting government missions.
0+ YOEBachelor's in engineering discipline; 0–3 years developing in C, C++, and/or C#; active or ability to obtain DoD Secret clearance; US citizenship and valid/obtainable US passport; ability to travel 10–20%.
Microsoft Visual Studio, Git, Microsoft Visio, Microsoft Access, Microsoft .NET Framework, C, C++, C#, SQL
CAP Index: Provides data-driven crime risk forecasting and security management solutions.
5+ YOE5+ years professional software development experience with C# and .NET; experience with React, TypeScript, SQL Server, PostgreSQL, Docker, testing tools, and CI/CD; bachelor's degree or equivalent experience preferred.
ManTech: Provides technology solutions for defense and intelligence agencies.
10+ YOEBSc and 10+ years software development experience, U.S. citizenship with active Secret clearance, proficiency with Java/Python/C#/JavaScript, Linux/Windows experience, testing and documentation skills, DoD experience preferred.
ExistX: Transitions national security research into operational software and systems.
5+ YOE5+ years enterprise software development; BS in Computer Science or related field; backend languages Java/C/C++/Rust/Python; experience with scalable systems; strong documentation; cryptography or cloud knowledge preferred.
Sigma Defense: Develops tactical communications and intelligence systems for defense.
10+ YOE10+ years in software development; 5+ years DoD software support; strong requirements analysis, architecture, and coding skills; Java, Python, C#, and JavaScript; ability to document software; U.S. citizen; Secret security clearance or higher; Bachelor's Science degree.
Lockheed MartinNYSE: LMT: Designs and manufactures global security and aerospace systems.
U.S. citizen with final Secret clearance; strong software engineering background with professional C# experience, Agile, DevOps, and familiarity with C++, Angular, Kubernetes, and military communications software preferred.
ParsonsNYSE: PSN: Provides engineering and technology services for infrastructure and defense.
4+ YOEBachelor's in CS/Engineering with 4 years experience or 6 years related software development experience; US citizenship; SECRET clearance; proficiency in Python, C++, Java, C#; CI/CD; DoD/C-UAS experience preferred.
CACI InternationalNYSE: CACI: Provides information technology and engineering services for government agencies.
3+ YOEU.S. citizen with TS/SCI clearance (CI Poly preferred), Bachelor’s in CS/SE/EE, 3+ years software development, strong C++ and Python experience, Linux and UI framework experience, API/CI-CD knowledge, and ability to work with RF/SIGINT data.