22 system software engineer jobs at 13 companies in Defiance, OH

3w
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Senior Software Engineer
Van Wert County or Dublin
HybridFull Time
Central Insurance
Central Insurance: Provides property and casualty insurance to individuals and businesses.
2+ YOEMaster's in CS +2 years, Bachelor's in CS +4 years, or 6 years related experience; strong software development, systems engineering, debugging, testing, and communication skills; ability to design scalable services and mentor others.
2mo
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Software Engineer- MES II USA
Perrysburg, Ohio, United States
$91k-$130k/yr OnsiteFull Time
First Solar
First SolarNASDAQ: FSLR: Designs and manufactures thin-film photovoltaic solar modules.
4+ YOE4+ years in manufacturing systems or software teams; strong C#, XAML, ASP.NET, JavaScript, T-SQL; experience with SQL Server, SSIS; knowledge of PLC/OPC systems is a plus.
C#, XAML, ASP.NET, JavaScript, T-SQL, MSMQ, AngularJS, SSIS, SQL Server
1w
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Principal Software Engineer - Secure Communications
Fort Wayne, Indiana, United States
$108k-$205k/yr OnsiteFull Time
RTX
RTXNYSE: RTX: RTX provides advanced aerospace and defense systems and services.
8+ YOEU.S. citizen with active transferable Secret clearance, STEM degree with extensive embedded software experience (C/C++ or Rust), Python, Embedded Linux, multithreaded systems, and lifecycle/configuration management.
C++, Rust, Python, Embedded Linux, IP networking
2mo
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Software Engineer- Sage Intacct
Maumee, Ohio, United States
RemoteFull Time
Aktion Associates
Aktion Associates: North American ERP software reseller and top workplaces in 2025.
3+ YOESage Intacct experience required; 3 years with Sage Intacct and cloud-based financial systems; Bachelor's degree preferred; Proficiency in Postman, HTML, SQL, PHP, .NET, XSL; US work authorization.
Postman, HTML, SQL, PHP, NET, XSL, Sage Intacct
2w
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Senior Structural Engineer
Austin or Akron or Albany or Albuquerque or Anchorage or Arlington or Atlanta or Augusta or Baton Rouge or Birmingham or Boca Raton or Boston or Buffalo or Charlotte or Chicago or Cincinnati or Columbus or Detroit or Durham or Fort Wayne or Fort Worth or Greenville or Hanover or Highlands Ranch or Houston or Indianapolis or East Greenwich
$130k-$190k/yr OnsiteFull Time
Arcadis
ArcadisEuronext Amsterdam: ARCAD: Designing and engineering sustainable solutions for natural and built environments
10+ YOEPE licensure in the U.S., 10+ years structural engineering experience, strong knowledge of codes and structural systems, Bachelor's in Civil/Structural Engineering, AutoCAD/Revit and analysis software experience.
AutoCAD, Revit, Autodesk Construction Cloud, Risa, ETABS
1mo
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Principal AI Systems Engineer
Auburn, Indiana, United States
$170k-$190k/yr RemoteFull Time
Traction Ag
Traction Ag: Cloud-based farm management and accounting software for farmers.
7+ YOE7+ years in software/data/platform engineering with 2+ years on AI/ML systems; experience designing AI retrieval, RAG, vector search, embeddings, and workflow orchestration; proficiency in Python, Node, Angular, TypeScript; API/webhook integrations and strong communication skills.
Python, Node, Angular, TypeScript, Atlassian, Notion, HubSpot, Slack, Jira, Figma, Google Workspace, Canva
2w
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Director of Software Engineering
United States or Canada or United Kingdom or Traverse City or Jersey City or Cincinnati or Toledo or Illinois or Colorado or California or District of Columbia or Hawaii or Maryland or Minnesota or Nevada or New York or New Jersey or Ohio or Rhode Island or Washington or British Columbia
RemoteFull Time
Hagerty
HagertyNYSE: HGTY: Provide specialty insurance and membership services for automotive enthusiasts.
3+ YOE3+ MgmtProven engineering leadership with experience managing managers and large-scale systems; deep technical ability including C#, Terraform, Typescript; strong communication and strategy skills.
C#, Terraform, Typescript, HTTP API, ReST, RPC, GraphQL, SAML, OAuth 2, OIDC, STRIDE, TCP/IP, VMs, containers
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
1mo
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ERP AI Engineer - Senior Associate
Atlanta or Raleigh or Charlotte or Chicago or Cincinnati or Cleveland or Columbus or Dallas or Baltimore or Rochester or Rosemont or Sacramento or Boston or St. Louis or Salt Lake City or San Antonio or San Diego or San Francisco or San Jose or San Juan or Seattle or Spartanburg or Albany or Stamford or Tampa 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 Grand Rapids or Indianapolis or Irvine or Jacksonville or Kansas City or Las Vegas or Little Rock or Los Angeles or Louisville or Birmingham or Fayetteville or Melville or Miami or Milwaukee or Minneapolis or Montpelier or Nashville or New Orleans or United States or New York City or Oklahoma City or Orlando or Philadelphia or Phoenix or Pittsburgh or Portland
$77k-$202k/yr HybridFull Time
PwC
PwC: Providing audit, tax, and management consulting services to businesses.
3+ YOEBachelor's in a quantitative field, 3+ years developing AI/ML systems or integrating AI into software, experience with Oracle data/analytics tools, Docker/Kubernetes, CI/CD, vector DBs and model fine-tuning; strong critical thinking and client skills.
Oracle Database, Oracle Analytics Cloud, Oracle Data Integrator, Oracle Data Visualization, Oracle Machine Learning, Docker, Kubernetes, CI/CD, LLMs, vector databases, embedding models
4w
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Systems V&V Team Leader
Maumee or Toledo
OnsiteFull Time
Dana
DanaNYSE: DAN: Manufacturer of vehicle driveline and thermal management systems.
8+ YOEBachelor's in engineering/CS, minimum 8+ years embedded software validation, experience with automotive validation tools, knowledge of C/C++, SW testing methodologies and automotive standards (ASPICE, ISO 26262, AUTOSAR).
VectorCast, Vector Canape, CANalyzer/CANoe, CANdella Studio, Typhoon, dSPACE, Automation Desk, Synect, Polarion, Jira, Azure Git, C, C++, ASPICE, ISO 26262, IATF-16949, ISO-SAE-21434, AUTOSAR, Cyber Security Testing Methods
3mo
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Technical Director - Engine Controls Systems
Endicott or Cedar Rapids or Fort Wayne or Austin
$153k-$261k/yr HybridFull Time
BAE Systems
BAE SystemsLondon Stock Exchange: BA: Designs and manufactures advanced defense and aerospace systems.
12+ YOEBachelor's in engineering and 12+ years leading FADEC system architecture, hardware/firmware/software integration, safety-critical development (ARP4754, DO-178B/C, DO-254); strategic roadmap, customer engagement, and technical leadership skills required. Secret clearance eligibility and U.S. person required.
Model Based Systems Engineering (MBSE), SysML, Digital Engineering, FADEC, ARP4754, DO-178B/C, DO-254
1mo
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Senior Hydraulic Modeler
Akron or Columbus or Toledo or Cincinnati or Cleveland
$98k-$168k/yr OnsiteFull Time
Arcadis
ArcadisEuronext Amsterdam: ARCAD: Global design, engineering, and consultancy for natural and built assets.
8+ YOE8+ years in hydraulic modeling or water system planning; Bachelor's in Civil/Environmental Engineering and PE license required; experience with hydraulic modeling software, GIS, strong communication and technical leadership skills.
Autodesk InfoWater Pro, Bentley WaterGEMS, ArcGIS Pro, Microsoft Office, InfoWorks, Hammer, AquaTwin, Python
2mo
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Systems Specialist
Toledo, Ohio, United States
$75k-$88k/yr OnsiteFull Time
City of Toledo
City of Toledo: Provides municipal services and public safety to Toledo residents.
3+ YOEPLC/SCADA automation, HMI, VFDs, databases; cybersecurity; software/hardware upgrades; associate degree; 3 years distributed control network experience.
PLC, SCADA, HMI, VFD, Database, Telemetry, Networking, Security
1mo
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Quality Assurance Analyst
Fort Wayne, Indiana, United States
OnsiteFull Time
Steel Dynamics
Steel DynamicsNASDAQ: STLD: Produces steel and metal products from recycled scrap.
5+ YOEBachelor's in CS/Software Engineering/Information Systems, 5+ years software QA/testing, experience with Playwright, building testing frameworks, proficiency in C#/.NET or Python, and onsite work in Fort Wayne, IN.
Playwright, Ascential Test, Git, C#, .NET, Python, CI/CD pipelines, TDD, BDD
1mo
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Maint Manager
Lima, Ohio, United States
OnsiteFull Time
ALPLA
ALPLA: Manufactures rigid plastic packaging and provides recycling solutions.
4+ YOE3+ MgmtBachelor's in electrical engineering or equivalent, 4+ years industry maintenance experience, 3+ years supervisory experience, experience with computer control systems, hydraulic and pneumatic systems, preventive and predictive maintenance, budgeting, and maintenance software.
Computer Control Systems, maintenance software, reporting software, hydraulic systems, pneumatic systems, LOTO, 5S, RCA, Kaizen, OSHA

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