299 development systems engineer jobs at 132 companies in Elsmere, DE
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Staff Systems Engineer
Aurora or Ypsilanti or King of Prussia
$99k-$207k/yr OnsiteFull Time
7+ YOEActive TS/SCI clearance, bachelor's degree in computer science, systems engineering, IT, or related engineering, and 7+ years in software development or systems engineering. Requires requirements, testing, tracing, Scrum, and Agile expertise.
Scrum, Agile Software Development Methodology, XML, JSON, Cameo, DOORS, DOOR Next Gen
1w
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Staff Systems Engineer
Aurora or Ypsilanti or King of Prussia
$99k-$207k/yr OnsiteFull Time
7+ YOEBachelor’s degree in computer science, systems engineering, IT, or related engineering field; 7+ years in software development or systems engineering; active TS/SCI clearance; requirements, testing, tracing, Scrum, and Agile experience.
Scrum, Agile Software Development Methodology, XML, JSON, Cameo, DOORS, DOOR Next Gen
3d
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Systems Engineer Sr - E3
King of Prussia, Pennsylvania, United States
$96k-$178k/yr OnsiteFull Time
Bachelor's degree in systems engineering or related field, systems engineering lifecycle knowledge, test planning and procedure development experience, and active TS/SCI clearance with ability to obtain a Poly.
Matlab, Python, Microsoft Office Suite, Scrum, Agile
4d
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Systems Engineer Sr - E3
King of Prussia, Pennsylvania, United States
$96k-$178k/yr OnsiteFull Time
Bachelor's degree in systems engineering or related field; systems engineering lifecycle, test planning, execution, and procedure development experience; active TS/SCI clearance with ability to obtain a polygraph.
MATLAB, Python, Microsoft Office Suite, Scrum, Agile
4d
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Space Systems Engineer (Product Development)
Lancaster, Pennsylvania, United States
OnsiteFull Time
Bachelor's degree or higher in Mechanical or Aerospace Engineering; CAD, FEA, and/or CFD proficiency or academic experience; strong problem-solving and communication skills; hands-on engineering interest. U.S. Person preferred.
Microsoft Excel, SolidWorks, Autodesk Simulation, Fluent, COMSOL, Thermal Desktop, NASTRAN, CAD, CFD, FEA
1mo
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Software Systems Engineer
Auburn or Aberdeen
$65k-$175k/yr OnsiteFull Time
Bachelor's in engineering/computer science, US citizenship, ability to architect software, produce system engineering artifacts, develop test plans, perform integration, and travel for customer support.
C++, cmake, Docker, Kubernetes, Helm, git, CI/CD
3mo
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Radar Systems Engineer
Moorestown, New Jersey, United States
OnsiteFull Time
Support development, integration, and sustainment of complex systems; MATLAB modeling; requirements analysis; system architecture; integration and test; collaboration with software/hardware/test teams; documentation.
MATLAB
3mo
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Systems & Applications Engineer
Aberdeen Proving Ground, Maryland, United States
$150k-$174k/yr OnsiteFull Time
10+ YOEBachelor's or Master's in computer science/engineering; 10+ years related experience; Secret clearance with ability to obtain Top Secret; cloud, data engineering, and software development expertise.
Python, Java, Cloud Platforms, ETL Tools, Message Brokers, API Gateways, Power BI, Kibana, Data Warehouses, Data Mesh, Data Lakes
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Systems Design Engineer I
Camden, New Jersey, United States
$95k-$115k/yr OnsiteFull Time
2+ YOEBS in engineering, 2+ years post-grad experience (or MS), knowledge of heat transfer/fluid dynamics, EIT/PE preferred, EM office proficiency, experience with nuclear industry and requirements development.
Microsoft Word, Microsoft Excel, Smart Plant, MathCad, AutoCAD, Pipe-Flo, Engineering Life-cycle Management (ELM), DOORS-NG, HTRI
2mo
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Associate Systems Engineer - JobID-0183
Mount Laurel, New Jersey, United States
$74k-$150k/yr OnsiteFull Time
0+ YOEBachelor's in a STEM field or equivalent experience, 0-3 years MBSE/systems engineering experience, ability to obtain/maintain Secret clearance, familiarity with SysML v2, Cameo Enterprise Architecture, and plugin development.
SysML v2, Agentic AI, SysML v2 API, Cameo Enterprise Architecture 2026x, CATIA Magic, Cameo, MagicDraw, MOSA
1d
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Project Development Engineer II
New York City or Raleigh or Washington or Alexandria or Atlanta or Philadelphia
$70k-$95k/yr RemoteFull Time
Bachelor’s degree in engineering or science required; expertise in mechanical systems, energy auditing, calculations, project management, data analysis, and technical drawings. Travel required.
Microsoft Office, Microsoft Excel, Microsoft Word
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Lead Product Development Engineer, R&D
Marlborough or Newark
$119k-$187k/yr OnsiteFull Time
8+ YOELead complex regulated medical device product development, design control, risk management (ISO 14971), V&V, and design transfer; strong systems engineering, manufacturing and DFx experience.
ISO 14971, ISO 13485, DFSS, DOE, Minitab, GD&T, SolidWorks
1d
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Principal Software Development Engineer
Philadelphia or Massachusetts
$189k-$296k/yr OnsiteFull Time
15+ YOE15+ years of software engineering experience, bachelor's degree preferred, and expertise in Linux, C/C++/Golang/Python, distributed systems, network infrastructure, cloud-native environments, and technical leadership.
Linux, C, C++, Golang, Python, Docker, Kubernetes, microservices, Electronic Medical Records (EMR)
6h
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Warehouse Systems & Automation Developer
King of Prussia, Pennsylvania, United States
$115k-$140k/yr OnsiteFull Time
4+ YOERequires 4+ years in warehouse systems, logistics technology, integration, automation, or supply chain technology; WMS/ERP/OMS experience; outsourced development leadership; REST APIs, webhooks, EDI, SQL, and programming proficiency.
WMS, ERP, OMS, REST APIs, SQL, Python, JavaScript, TypeScript, C#, Celigo, Boomi, Workato, Make, Microsoft Power Automate, Shopify
1w
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CRM Systems Developer
Lancaster, Pennsylvania, United States
OnsiteFull Time
The posting does not provide a job description or qualification details.
CRM
1mo
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Software Development Engineer
Philadelphia or Reston
OnsiteFull Time
5+ YOE5+ years building and operating distributed backend systems, experience with GraphQL/REST APIs, Python/Go/Java/C++, relational or NoSQL databases, containerized deployments and CI/CD; Bachelor's preferred; must be authorized to work in the US (no sponsorship).
GraphQL, REST, PostgreSQL, Python, Go, Java, C++, Docker, Kubernetes, MLOps, CI/CD
1mo
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Systems Engineer- Senior
Philadelphia, Pennsylvania, United States
$100k-$115k/yr RemoteFull Time
Bachelor's in computer science or equivalent; extensive Windows Server administration experience; PowerShell automation; MCSA or MCSE preferred; experience designing and supporting production, development, and DR environments.
PowerShell, Windows Server
3mo
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Field Service Business Development Engineer (Exton, PA, US)
Exton, Pennsylvania, United States
OnsiteFull Time
Field service engineer role focusing on on-site evaluations, system development, and identifying new business opportunities; travel ~50% to customer sites; collaborate with sales and engineering teams.
1d
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GenAI Python Systems Engineer – Senior Associate
Chicago or Raleigh or Charlotte or Cincinnati or Cleveland or Columbia or Columbus or Dallas or Baltimore or Richmond or Rosemont or Sacramento or Boston or St. Louis or Salt Lake City or San Antonio or San Diego or San Francisco or Seattle or Albany or Stamford or Tampa or Atlanta or Toledo or Austin or Tulsa or Washington or Denver or Des Moines or Detroit or Buffalo or Florham Park or Fort Worth or Greensboro or Hartford or Houston or Indianapolis or Grand Rapids or Irvine or Jacksonville or Kansas City or Las Vegas or Little Rock or Los Angeles or Louisville or Birmingham or Fayetteville or Miami or Milwaukee or Minneapolis or Nashville or New Orleans or New York City or Oklahoma City or Philadelphia or Phoenix or Pittsburgh or Portland
$77k-$202k/yr OnsiteFull Time
3+ YOEBachelor's degree and 3+ years of experience required. Preferred fields include data science, AI, computer science, information systems, or engineering. Python, machine learning, NLP, and cloud or data platform credentials preferred.
Python, AWS, Google Cloud, Microsoft Azure, Databricks, Snowflake, machine learning libraries, NLP
1mo
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Product Development Engineer 2 (AI-Native) (Onsite role)
Ambler, Pennsylvania, United States
$90k-$115k/yr OnsiteFull Time
3+ YOE3+ years software/product engineering experience, bachelor's in CS/Software Engineering/IT required (master's preferred). Must build production-quality code, own features end-to-end, and work with AI tooling, APIs, databases, testing, distributed systems, and observability.
Python, Java, JavaScript, TypeScript, Go, SQL, REST APIs, JSON, LLMs, Agent SDK