790 system developer jobs at 377 companies in Middletown, DE

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System Engineer
Philadelphia, Pennsylvania, United States
$65k-$102k/yr HybridFull Time
Noblis
Noblis: Nonprofit science, technology, and strategy firm supporting government missions.
0+ YOEBachelor's in engineering/CS/math, 0–3 years experience in electrical/computer engineering for control systems, US citizen able to obtain Secret clearance, valid US passport or ability to obtain, 10–20% travel.
Rockwell, Siemens, PLC, Versa Module Eurocard (VME), TCP/IP, UDP
2w
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Associate System Engineer
Philadelphia, Pennsylvania, United States
$70k-$79k/yr OnsiteFull Time
City of Philadelphia
City of Philadelphia: Provides municipal services and governance to the city of Philadelphia.
Entry-level systems engineering role supporting Windows Server, scripting, task automation, monitoring, Active Directory, basic networking, application support, and technical documentation.
Microsoft Windows, Windows Server, PowerShell, Python, Windows Task Scheduler, Active Directory, Git, Docker, IIS
2w
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System Engineer Senior Staff (Level 5)
Huntsville or King of Prussia or Littleton
$128k-$256k/yr OnsiteFull Time
Lockheed Martin
Lockheed MartinNYSE: LMT: Designs and manufactures global security and aerospace systems.
Experienced systems engineer proficient in MBSE (SysML,DODAF), requirements development, verification/validation, trade studies, risk management, cross-discipline collaboration, and able to hold TS/SCI clearance (US citizen).
MBSE, SysML, DODAF, Cameo
2mo
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Senior System Engineer - Maryland
Maryland, Maryland, United States
$120k-$140k/yr RemoteFull Time
Motorola Solutions
Motorola SolutionsNYSE: MSI: Provides mission-critical communications and public safety technology.
3+ YOESenior system engineer with RF, IP networking, and telecom system design; BS in engineering with 3+ years or 5+ years experience; US work authorization; travel 25-50%; remote work.
VMware ESXI, Linux, Microsoft Windows
2mo
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System Administrator/Network Engineer
Philadelphia or Philadelphia or Philadelphia
$58k-$72k/yr HybridFull Time
Esperanza Health Center
Esperanza Health Center: Faith-based community center providing integrated medical and dental care.
4+ YOEMid to senior Systems Administrator and Network Engineer with 4–8+ years experience; hybrid role; Windows/VMware/AD; networking devices; backups; scripting.
Windows Server, Windows 11, ThinOS, Active Directory, VMware, Azure, Fortigate, Fortinet, LAN, WAN, WLAN, Veeam, PowerShell, Bash, Python, Scribe, Microsoft Visio, Ansible, Terraform
1mo
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Senior Power System Modelling Engineer
Los Angeles or Seattle or Portland or Boston or Austin or Chicago or Phoenix or Dallas or Las Vegas or Denver or San Jose or San Francisco or San Diego or New York City or Philadelphia or Houston
HybridFull Time
Powertech Labs
Powertech Labs: Specialized testing and engineering services for the power industry.
5+ YOEMaster's in Electrical Engineering preferred; 5+ years (8+ for Specialist) in power system stability, protection/control, generator and renewable modeling; experience with PSCAD, DSATools, PSS/E, PSLF, ASPEN, ETAP; valid driver's license; able to travel.
DSATools, PSCAD, PSS/E, PSLF, ASPEN, ETAP, Real-Time Digital Simulation (RTDS), SEL, Beckwith, GE Multilin
1mo
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Warehouse Management System Engineer
Camden, New Jersey, United States
$128k-$184k/yr OnsiteFull Time
Campbell's
Campbell'sNasdaq: CPB: Manufacturer of branded soups, snacks, and beverage products.
5+ YOEBachelor's or equivalent plus 5+ years SAP experience (5 years focused on WM/EWM). Deep SAP ECC WM/EWM expertise, WMS process knowledge, integration (EDI/IDoc/APIs) experience, solution design, implementation leadership, and strong stakeholder communication.
SAP WM, SAP EWM, SAP ECC, SAP S/4HANA, EDI, IDoc, APIs, Azure DevOps, Blue Yonder/JDA, TMS, SAFe, Scrum, ITSM
1mo
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Information System Security Engineer
Philadelphia, Pennsylvania, United States
$85k-$100k/yr OnsiteFull Time
The GBS Group
The GBS Group: Provides technical engineering and maintenance services for infrastructure assets.
3+ YOEABET-accredited BS in CS/EE/CE or cybersecurity, 2–3+ years cybersecurity/IT experience, Security+ or CISSP, RMF and Linux experience, vulnerability analysis experience, ability to obtain security clearance (US citizenship required).
RMF, DISA Security Technical Implementation Guides (STIGs), Security Requirements Guides (SRGs), Assured Compliance Assessment Solution (ACAS), ACAS, AV, Standard Engineering Process (SEP), Windows, Linux, Red Hat Enterprise Linux (RHEL), VxWorks
2mo
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System of Systems Architect Engineer (NAVWAR) - PNT
Aberdeen Proving Ground, Maryland, United States
OnsiteFull Time
Credence
Credence: Provides technology and management solutions to federal government agencies.
5+ YOEActive Secret clearance (TS/SCI preferred), bachelor's in engineering +7 years or master's +5 years in DoD/DoW systems-of-systems engineering; expertise in NAVWAR, EW, and SIGINT; experience across system lifecycle and architecture.
Defense Information System for Security (DISS)
3w
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Trading System Engineering Internship: Summer 2027
Hong Kong or Singapore or Philadelphia
OnsiteInternship
Susquehanna International Group
Susquehanna International Group: Global quantitative trading firm specializing in proprietary financial markets.
University student graduating 2028 in CS/CE/Math/STEM; strong C++, C, Rust, C#, Java, and some Python skills; strong logical reasoning. Visa sponsorship available.
C++, C, Rust, C#, Java, Python
1mo
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Power System Studies Engineer - Austin, Texas, United States
New York or Los Angeles or Chicago or Houston or Tempe or Philadelphia or Dallas or Miami or Denver or Austin or San Francisco or Vancouver or Toronto or Boston or Orlando or Fort Worth or North America
$71k-$93k/yr RemoteFull Time
Jacobs
JacobsNYSE: J: Global provider of professional engineering and technical services.
4+ YOEMaster's in Electrical Engineering, minimum 4 years system-studies experience on utility-scale renewable projects, proficiency with PSS/E, ETAP, PSCAD, knowledge of IEC/IEEE/CIGRE, Python preferred, willingness to travel within North America.
PSS/E, ETAP, PSCAD, Python
2mo
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Overhead Contact System Electrification Engineer
Philadelphia or Pittsburgh
HybridFull Time
HDR
HDR: Global provider of engineering, architecture, environmental and construction services.
7+ YOEBachelor's in Engineering, professional engineer (PE) required, 7+ years rail/transit electrification experience preferred; experience in AC/DC traction electrification and OCS design, structural/foundation design familiarity, Microsoft Office and sector design software proficiency, strong communication and leadership skills.
PLS CAD, AutoCAD, Plant 3D, AutoPipe, Revit, LPile, SAP2000, STAAD, LARSA, Microsoft Office
2mo
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Overhead Contact System Electrification Engineer
Philadelphia or Pittsburgh
HybridFull Time
HDR
HDR: Global firm providing architecture, engineering, and environmental services.
7+ YOE7 years rail electrification design experience; AC/DC OCS design; PE license; Bachelor's in Engineering; proficiency in design software; strong client interface.
AutoCAD, PLS-CADD, Plant 3D, AutoPIPE, Revit, Microsoft Office
2mo
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Manager Software Engineering Finance System
Baltimore or Owings Mills
$111k-$153k/yr OnsiteFull Time
Element Fleet Management
Element Fleet ManagementToronto Stock Exchange: EFN: Provides commercial vehicle leasing and comprehensive fleet management services.
8+ YOE2+ Mgmt8+ years in software engineering; 2-4+ years in senior technical leadership; experience with large-scale systems, integrations, APIs, cloud-native architecture; hands-on coding; security and compliance knowledge.
APIs, Cloud, Security, Mainframe integration, Modern development frameworks, Programming languages
1mo
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Development Test Engineer-System Performance
Hanover or Baltimore or Washington
$74k-$174k/yr OnsiteFull Time
Laitram
Laitram: Global manufacturer of industrial equipment and processing machinery.
3+ YOEBS in Mechanical Engineering, 3+ years engineering experience, strong mechanical aptitude, ability to lift 40 lbs, CAD and controls exposure; Inventor, Python, TwinCAT, or MATLAB experience preferred.
3D CAD, Inventor, Python, BECKHOFF Controls Platform, TwinCAT, MATLAB
2mo
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Software Developer - Global Routing | Experienced Hire
Bala Cynwyd, Pennsylvania, United States
OnsiteFull Time
Susquehanna International Group
Susquehanna International Group: Global quantitative trading and market making firm.
Experienced software developer with expertise in routing software and distributed systems.
1w
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AFS Developer
Baltimore, Maryland, United States
$45-$56/hr HybridFull Time
State of Maryland
State of Maryland: Provides public governance and services for Maryland residents.
7+ YOE7+ years designing, developing, testing, implementing and maintaining application or systems software; experience with Microsoft Dynamics 365, X++, AOT, .NET, C#, Visual Studio, Power Automate, Power BI, and SSRS.
X++, AOT, Power Automate, Robotic Process Automation (RPA), .NET, C#, Visual Studio, Power BI, SSRS, Microsoft Dynamics 365, Microsoft Excel
1mo
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IS Developer
Exton or Lexington or Peachtree City or Bridgman or Holland or Detroit or Houston
HybridFull Time
Convergix Automation Solutions
Convergix Automation Solutions: Designs and integrates custom industrial automation and robotics.
Experience with MES/IIoT and industrial controls, PLC platforms, network design, industrial software (Rockwell, Siemens, Aveva/Wonderware, GE), development using Python/Java/JavaScript/.NET, database systems, and practical use of AI coding assistants.
GitHub Copilot, Claude, Python, Java, JavaScript, Microsoft .NET, Microsoft SQL Server, PostgreSQL, MySQL, Oracle, InfluxDB, MQTT, Azure DevOps, AWS, Node-Red, Docker, Rockwell, Siemens, Aveva/Wonderware, GE, Inductive Automation's Ignition Platform, Sepasoft, Cirrus Link Solutions
2w
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Software Developer II
New Holland or Pennsylvania or Ohio or South Dakota
OnsiteFull Time
Goodville Mutual Casualty Company
Goodville Mutual Casualty Company: Provides property and casualty insurance for homes and businesses.
Develop, implement, and maintain insurance systems; integration, web services, data mapping, automated testing; college degree or comparable experience in web or computer technologies required.
2w
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Associate Software Developer
West Chester, Pennsylvania, United States
HybridFull Time
Venerable
Venerable: Manages and optimizes legacy variable annuity business blocks.
1+ YOE1+ years professional experience in AI/ML and micro-service systems; proficiency with AWS services, Python, C#, ML libraries, and enterprise software development practices.
SageMaker, Lambda, EC2, S3, EFS, SNS, SQS, EventBridge, Kinesis, Aurora, DynamoDB, RDS Proxy, Glue, Athena, Redshift, AWS Step Functions, AWS CodePipeline, Python, TensorFlow, PyTorch, scikit-learn, C#, PowerShell, SQL, JavaScript, UML, Docker, Git, GitHub, Jenkins, Bamboo, TeamCity, SpecFlow, Cucumber, Protobufs, Thrift, Avro, JSON, ODBC, Kafka, Angular, React

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