260 c software engineer jobs at 84 companies in Elsmere, DE
🚀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.
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.
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.
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.
CoherentNYSE: COHR: Manufactures lasers, engineered materials, and optical networking components.
5+ YOEBachelor's in EE or CS, 5+ years embedded software experience, 3+ years optical networking experience, expertise in C/C++, familiarity with L2/L3 protocols, CI/CD and DevOps practices, and proficiency with Embedded Linux.
C, C++, Go, Python, SONiC, FRRouting, Open vSwitch, LLDP, OSPF, BGP, Netconf, Open Config, Yang models, Embedded Linux, CI/CD, DevOps
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.
ASRC Federal: Provides engineering and IT services to federal government agencies.
3+ YOEBachelor’s degree or higher in Engineering, Computer Science, Math, Physics, or related field; ability to obtain a government secret clearance; 2-4 years in software development; experience with Java, C++, Python; Linux/UNIX; Agile; OO design; UML.
CACI InternationalNYSE: CACI: Provides information technology and engineering services for government agencies.
3+ YOEBachelor's in CS/Software/Electrical, 3+ years software development, U.S. citizenship, TS/SCI clearance (CI Poly ability), strong C++ and Python, Linux, geospatial and DSP familiarity, UI and API development experience.
JANUS Research Group: Provides specialized engineering and technical services for defense organizations.
10+ YOE10+ years software engineering experience, active Secret clearance, bachelor’s in CS/Software Engineering or equivalent, proficiency in C++, Java, or Python, secure coding and networking knowledge, strong communication skills.
EPAM SystemsNYSE: EPAM: Provides global digital platform engineering and software development services.
3+ YOE3+ years relevant software engineering experience; proficiency with at least one cloud or web tech (GCP, Azure, AWS, .NET) and one programming language (Java, C++, C#, Python, JavaScript, Golang, Swift); experience with Git or Docker; Agile experience.