26 application developer jobs at 24 companies in Ottawa, IL
2mo
Save
Mark Applied
Hide
Application Developer
Naperville, Illinois, United States
$60k-$80k/yr OnsiteFull Time
0+ YOEBachelor's degree in technology, science, finance, economics, math, or engineering; strong communication; ability to work in a fast-paced, collaborative environment; eligible to work in the U.S. without visa sponsorship.
SQL, Python, Java, C#, Git
1mo
Save
Mark Applied
Hide
Senior Application Engineer
Bolingbrook, Illinois, United States
OnsiteFull Time
10+ YOEBachelor's in engineering, 10+ years material handling experience, AutoCAD/3D, project management, Microsoft Office, CRM and conveyor estimating tool experience, strong communication and hands-on skills.
AutoCAD, AutoCAD 3D, Microsoft Office, Microsoft CRM, NiC conveyor estimating tool
1mo
Save
Mark Applied
Hide
ILUS - Sr. Application Engineer
Bolingbrook, Illinois, United States
OnsiteFull Time
10+ YOEBachelor's in engineering or equivalent, 10+ years material handling experience, AutoCAD/3D drawing preferred, Microsoft Office and CRM/estimating tool proficiency, project management skills, code compliance knowledge, customer-facing and mentoring experience.
AutoCAD 3D, Microsoft Office, Microsoft CRM, NiC conveyor estimating tool
1mo
Save
Mark Applied
Hide
ILUS - Sr. Application Engineer
Bolingbrook, Illinois, United States
OnsiteFull Time
10+ YOEBachelor's in engineering or equivalent experience, 10+ years material handling experience, AutoCAD/3D drawing, Microsoft Office and CRM proficiency, project management skills, hands-on and communication skills, available for evenings/weekends.
AutoCAD, Microsoft Office, Microsoft CRM, NiC conveyor estimating tool
2mo
Save
Mark Applied
Hide
Senior Engineer, Application Development
Aurora, Illinois, United States
$95k-$115k/yr OnsiteFull Time
5+ YOE5+ years industry experience in CMP, slurry chemistry, or filtration; strong problem-solving, data analysis, and communication skills; Master's degree preferred; ability to design and run complex experiments independently.
1d
Save
Mark Applied
Hide
Engineer - Merch Systems
Bolingbrook, Illinois, United States
$88k-$125k/yr HybridFull Time
3+ YOEBachelor's degree or equivalent experience, 3–5 years of software engineering experience, programming and scalable application development expertise, and familiarity with Agile, CI/CD, cloud, DevOps, testing, and debugging.
o9, Blue Yonder, Oracle APEX, Oracle PL/SQL, Atlassian Jira, CI/CD, DevOps, AI-assisted software development tools, generative AI, prompt engineering
1mo
Save
Mark Applied
Hide
Senior Software Engineer, e-Commerce Fulfillment
Romeoville or United States or Michigan or Nebraska or Illinois or Nevada or New Hampshire or Tennessee or Minnesota or Texas or Connecticut or Virginia or Maine or Indiana or District of Columbia or Wisconsin or Montana or New York or Maryland or Missouri or Kansas or Utah or Pennsylvania or Washington or Colorado or Arkansas or California or New Jersey or Iowa or Louisiana or Rhode Island or Massachusetts or South Carolina or Mississippi or Kentucky or Florida or Oregon or Ohio or North Carolina or Arizona or Idaho or Georgia
RemoteFull Time
5+ YOE5+ years building high-scale backend applications and microservices; expertise in event-driven architectures, message brokers (Kafka/RabbitMQ), distributed transactions, cloud platforms, software design, testing, and mentoring.
Kafka, RabbitMQ, AWS, Azure, GCP, Java, JVM, .NET, C#
2mo
Save
Mark Applied
Hide
Principal Software Development Engineer (PBM AI Solutions)
Buffalo Grove, Illinois, United States
$144k-$288k/yr RemoteFull Time
10+ YOELeading architecture and delivery of cloud-native applications; 5+ years frontend, 5+ years backend, 3+ years AI/GenAI experience; strong leadership in agile environments.
Angular, React, React TypeScript, Python, REST API, CI/CD, AWS, Azure, GCP, BigQuery, Spanner, BigTable, API-first, Microservices
1mo
Save
Mark Applied
Hide
Senior Applications Developer
Germantown or Oak Ridge or Lemont
$135k-$216k/yr OnsiteFull Time
12+ YOEBachelor's degree in CS/IT/Software Engineering (or equivalent experience), US citizen able to obtain DOE clearance, extensive experience with Jira/Atlassian Cloud migrations, Azure development, Java/.NET/JavaScript, SQL and web server administration.
Jira, Confluence, Atlassian Cloud, Atlassian Custom Developer Tools, Java, JavaScript, .NET, C++, C#, HTML, CSS, SQL, SQL Managed Instance, Azure App Service, Azure SQL Managed Instance, Azure DevOps, PowerShell, WebSphere, IIS, Eclipse, ServiceNow, Oracle BI, SQL Stored Procedures, Microsoft Visual Studio, Microsoft Power Platform
1w
Save
Mark Applied
Hide
ELECTRICAL ENGINEER
Ottawa, Illinois, United States
$78k-$98k/yr OnsiteFull Time
B.S. in Electrical Engineering required; ability to read electrical and relay ladder schematics, PLC programming/troubleshooting, CAD proficiency, knowledge of high-voltage systems, OSHA/NEC application, strong communication and problem-solving.
CAD, programmable logic controller (PLC), BASIC, C
1w
Save
Mark Applied
Hide
Lead Offensive Security Engineer
Naperville, Illinois, United States
$121k-$181k/yr OnsiteFull Time
8+ YOEBachelor's degree,8+ years in offensive/application/cloud/IoT security,hands-on penetration testing experience,team leadership,Azure/AWS/GCP familiarity and application security tooling proficiency.
Snyk, Wiz, Burp Suite, OWASP ZAP, GitHub Advanced Security, Nmap, Horizon3 NodeZero, DAST, SAST, SCA, Microsoft Azure, AWS, GCP, Kubernetes
2mo
Save
Mark Applied
Hide
Sr. Digital Platform Governance Engineer (IL)
Joliet, Illinois, United States
$98k-$117k/yr RemoteFull Time
5+ YOEBachelor’s degree; 5+ years in application governance, secure development, and risk assessment; experience with C#/.NET, Java, Android, and lifecycle governance; strong documentation.
C#/.NET, Java, Android development, SAST/DAST, API security, DevSecOps
2mo
Save
Mark Applied
Hide
Sr Embedded Engineer
Aurora or Melville
$102k-$173k/yr HybridFull Time
5+ YOE5+ years embedded firmware experience for sensor applications; proficiency in C/C++; experience with microcontrollers, DSPs, SoCs; sensor interfacing and signal processing; strong analytical and communication skills.
C, C++, microcontrollers, DSP, SoC
1mo
Save
Mark Applied
Hide
IT Security Engineer II
Skokie or Warrenville or Arlington Heights
$47-$72/hr HybridFull Time
3+ YOEBachelor's or equivalent in a technical discipline or equivalent security certifications; 3+ years cybersecurity experience; experience managing security applications, incident response, cloud (Azure) security, and compliance with HIPAA/NIST; advanced security certification preferred.
Azure, SOAR, SIEM, EDR/XDR, IDS/IPS, DLP, CSPM, CNAPP, HIPAA, NIST
1mo
Save
Mark Applied
Hide
Undergraduate Seasonal Intern General Application - Spring 2027
Lemont, Illinois, United States
OnsiteMultiple Commitments Available
Undergraduate student enrolled full-time with ≥1 semester completed, 18+ years old, cumulative GPA ≥3.0, U.S. citizen or legal permanent resident, must pass drug test; participates in lab safety training and research activities.
1d
Save
Mark Applied
Hide
Cloud Solutions Architect / Database Engineer / AI Platform Architect (Illinois , Aurora )
Aurora, Illinois, United States
$150k-$180k/yr OnsiteFull Time
Deep expertise in cloud architecture, C#/.NET, SQL Server, REST APIs, security, authentication, Azure or AWS, integrations, and production AI/LLM architecture; hands-on enterprise AI application experience required.
C#, .NET, SQL Server, RESTful APIs, ASP.NET Core, OAuth 2.0, OpenID Connect, JWT, SSO, RBAC, SSL/TLS, CI/CD, OpenAI, Azure OpenAI, Anthropic, Google AI, Large Language Model (LLM), Retrieval-Augmented Generation (RAG), ETL
2mo
Save
Mark Applied
Hide
Technical Sales Engineer- Hyperscale/AI Applications - United States
Fremont or Lisle or Portland or Seattle
$150k-$175k/yr HybridFull Time
5+ YOE5+ years in design/systems engineering with customer-facing experience; strong mechanical/electrical knowledge; CAD skills; on-site support; ability to work with hyperscalers and OEMs.
CAD, 3D CAD, Electrical design tools
3w
Save
Mark Applied
Hide
Sr Scientist, Food - Geneva, IL
Geneva, Illinois, United States
$86k-$151k/yr OnsiteFull Time
10+ YOEBSc in Food Science or related field, 10+ years food/flavor industry experience with flavor applications or product development, strong project management, data interpretation, and communication skills.
1mo
Save
Mark Applied
Hide
Postdoctoral Research Associate
Princeton or Geneva or Batavia or L'Aquila or Caserta or Ash River
$65k-$79k/yr OnsiteFull Time
Doctorate in Physics or related discipline required. Candidates should have research experience in listed physics subfields. Applicants must submit cover letter, CV, and three confidential letters of reference; appointment subject to background check.
2mo
Save
Mark Applied
Hide
Field Biologist
Alma, Illinois, United States
$42k-$45k/yr OnsiteFull Time
Associate’s degree or higher in Biology, Water Resources, Fisheries or related field; driver’s license required; must obtain Applicators license within 30 days; strong organization; team player; field data entry and problem solving.
Explore Jobs