19 mid level software engineer jobs at 14 companies in Defiance, OH

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Software Developer
Fort Wayne, Indiana, United States
OnsiteFull Time
Steel Dynamics
Steel DynamicsNASDAQ: STLD: Produces steel and metal products from recycled scrap.
Mid-level developer with BSc/BA in CS/IT, skillful in SQL, experience with multiple OS/DBs/languages, project management methodologies, strong problem-solving and communication skills.
C#, Javascript, VueJS, .NET Core 7+, Blazor, RESTful API, MSSQL, SQL
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Software Developer
Toledo or Ohio or Michigan or Texas or Florida or Missouri or Oregon
RemoteFull Time
Double A Solutions
Double A Solutions: We build SaaS products to automate manual business processes.
4+ YOEBachelor's in CS or related; 4+ years .NET (C#/VB.NET) web development; experience with ASP.NET, HTML5, JavaScript, jQuery, MVC, CSS; MySQL or SQL Server; APIs/SOAP/XML; Git; strong debugging and testing skills; remote role limited to specific US states.
Microsoft .NET, C#, VB.NET, JSON, SOAP, XML, ASP.NET, HTML5, JavaScript, jQuery, AJAX, MVC, CSS, MySQL, Microsoft SQL Server, Git
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Manufacturing Software Developer
Fort Wayne, Indiana, United States
OnsiteFull Time
Riverside Mfg
Riverside Mfg: Designs and manufactures electronics for harsh environment vehicles and equipment.
Bachelor's in CS/CE, demonstrated C# development with Visual Studio, ability to take projects from concept to deployment, manufacturing environment experience, strong analytical skills, and must be a U.S. person (ITAR/EAR).
C#, Visual Studio, USB, CAN, J1939, NMEA2K, Modbus, Bluetooth, LIN Bus, Wi-Fi, Ethernet, MES
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Software Engineer II, Reporting & Fulfillment (On-Site)
Fort Wayne, Indiana, United States
OnsiteFull Time
Neumo
Neumo: Provides integrated software and payment solutions for government agencies.
3+ YOE3-5 years software development experience with SQL Server, T-SQL, SSIS, and experience developing in VB.NET and ASP.NET Web Forms; attention to data accuracy and collaboration skills.
SQL Server, T-SQL, Stored Procedures and Views, SSIS, VB.NET, ASP.NET Web Forms, SQL Jobs, SQL CLR, Claude Code, Cursor, Microsoft Copilot
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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
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Traffic Engineer/Project Manager
Evansville or Fort Wayne or Indianapolis or Jeffersonville or Lafayette or Merrillville or Plainfield
HybridFull Time
Butler, Fairman and Seufert
Butler, Fairman and Seufert: Civil engineering firm providing infrastructure and construction design services.
7+ YOELicensed Professional Engineer in Indiana with 7+ years of traffic engineering experience; PE preferred; PTOE/RSP certifications desired; proficient in traffic software and design tools.
Synchro, SimTraffic, HCS, Sidra, AutoCAD, Civil 3D, MicroStation, MS Office
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Civil/Structural R&D Engineer
Fort Wayne, Indiana, United States
OnsiteMultiple Commitments Available
Steel Dynamics
Steel DynamicsNASDAQ: STLD: Produces steel and metal products from recycled scrap.
Manage R&D projects, structural modeling, design software testing, and certifications; BS in Civil/Structural Engineering; non-remote role in Fort Wayne, IN.
Excel, MathCAD, AutoCAD, STAAD, RISA, MASTAN, ANSYS
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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 control systems.
Experience with industrial/ manufacturing software (MES/IIoT), industrial controls and PLC platforms; development using Python, Java, JavaScript, or Microsoft .NET; database familiarity (Microsoft SQL Server, PostgreSQL, MySQL, Oracle, InfluxDB); practical use of GitHub Copilot/Claude and LLM concepts.
GitHub Copilot, Claude, Python, Java, JavaScript, Microsoft .NET, MES, IIoT, PLC, Rockwell, Siemens, Aveva/Wonderware, GE, MQTT, Microsoft Azure DevOps, AWS, Node-Red, Docker, Microsoft SQL Server, PostgreSQL, MySQL, Oracle, InfluxDB, Inductive Ignition, Sepasoft, Cirrus Link Solutions
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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 in manufacturing software (Information/MES/IIoT), industrial controls and PLCs, network design and virtualization; advanced development with Python/Java/JavaScript/Microsoft .NET; DB familiarity and use of GitHub Copilot/Claude.
GitHub Copilot, Claude, Python, Java, JavaScript, Microsoft .NET, Microsoft SQL Server, PostgreSQL, MySQL, Oracle, InfluxDB, MQTT, Azure DevOps, AWS, Node-Red, Docker, Ignition, Sepasoft, Cirrus Link Solutions, Rockwell, Siemens, Aveva/Wonderware, GE
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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
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DevOps Developer Lead/DevOps Engineer (Toledo, OH, US, 43659-0001)
Toledo, Ohio, United States
OnsiteFull Time
Owens Corning
Owens CorningNYSE: OC: Manufactures building insulation, roofing, and fiberglass composites.
3+ YOEBachelor's in CS/IT/IS (or equivalent), 3+ years with major cloud platforms, experience with CI/CD (Azure DevOps), IAC (Terraform/CloudFormation), Linux/Windows/MacOS administration, databases, web servers, scripting, and cloud security.
AWS, Azure, GCP, Azure DevOps, Oracle, Microsoft SQL Server, Postgres, MySQL, Apache, Passenger, IIS, GCE, Cloud SQL, Storage, Load Balancer, Kubernetes, IAM, PubSub, EC2, RDS, S3, CloudFront, ECS, CodeDeploy, SSM, Terraform, CloudFormation, Bicep, Microsoft Dynamics, SAP, Azure Entra ID, Okta, Linux, Windows, MacOS, Git, Bitbucket, JIRA, Scrumworks, Rally, Docker, .NET, Java, Ruby on Rails, PHP
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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
2w
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Estimator
Philadelphia or Plymouth Meeting or Pittsburgh or Columbus or Cleveland or Toledo or New York or Washington or Jacksonville or Miami or Orlando
OnsiteFull Time
Hill International
Hill International: Provides professional program and project management for global infrastructure.
Bachelor's in engineering/construction/architecture, proficiency with large-scale estimating software and databases, experience with estimate reconciliations and change order negotiations; PMP or PE preferred.
On Screen, Takeoff, Plan Swift, Timberline, Destini, Microsoft Excel
2w
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Quality Manager
Fort Wayne or Mooresville or Omaha
OnsiteFull Time
Holder Construction
Holder Construction: National commercial general contracting and construction management firm.
3+ YOE3+ years field or management construction experience, bachelor\u0002s in construction management or engineering (or equivalent), ability to read plans, QA/QC proficiency, strong communication, and software proficiency.
Microsoft Word, Microsoft Excel, Microsoft Outlook, Bluebeam, BIM360, SmartSheet
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Project Manager
Fort Wayne, Indiana, United States
OnsiteFull Time
High Star Traffic
High Star Traffic: Provider of traffic control services, signage, and equipment rentals.
5+ YOEBachelor’s degree in construction management or civil engineering preferred; 5+ years in heavy highway construction or traffic control; valid driver’s license with clean record and For Hire endorsement; Microsoft Office; construction software preferred.
Microsoft Office Suite, Construction software
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Mechanic 2
North Baltimore, Ohio, United States
OnsiteFull Time
Darling Ingredients
Darling IngredientsNYSE: DAR: Produces sustainable ingredients from animal by-products and organic waste.
3+ YOE3+ years vehicle/plant equipment maintenance or vocational training plus 1 year; brake certification required; valid driver's license; diesel and gasoline engine proficiency; OEM diagnostics and fleet software experience.
diagnostics software, scan tools, fleet management systems, OEM diagnostics tools
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Construction Project Manager (Fort Wayne, IN) - $10,000 Sign-On Bonus
Fort Wayne, Indiana, United States
$105k-$135k/yr OnsiteFull Time
The Superior Group
The Superior Group: Electrical design and construction services provider.
4+ YOE4+ years commercial construction project management; degree in Construction Management or Engineering; design-build/hard bid/negotiated projects $5M-$50M experience; OSHA 10/30; construction mgmt software proficiency.
Construction Management Software
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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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Diesel Mechanic
Fort Wayne, Indiana, United States
$28-$34/hr OnsiteFull Time
Guardian Fleet Services
Guardian Fleet Services: Provides towing, recovery, and specialized transportation services for vehicles.
Certification/training in diesel engine repair, high school diploma/GED, proficiency with diesel diagnostic software, must own tools, valid driver’s license (CDL Class A preferred), ability to lift >50 lbs and work in extreme conditions.