19 junior java developer jobs at 5 companies in DeKalb, IL

PromotedHiringCafe
Founding Full-stack / Product Engineer
Cupertino, CA, US
$130k-$300k/yr On-SiteFull Time
HiringCafe
HiringCafe: Building a 100× better job search engine to take on Indeed and LinkedIn.
Help us build a 100× better job search engine. We need a full-stack engineer with great taste, sharp fundamentals, and a track record of shipping polished product on React/Next.js plus a real backend (Firebase, Elasticsearch, Redis, Stripe).
React, Next.js, TypeScript, Firebase, Elasticsearch, Redis, Stripe
3w
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Support Software Engineer II (Remote)
Oak Brook, Illinois, United States
RemoteFull Time
Inspira Financial
Inspira Financial: Provides health, wealth, retirement, and financial custody solutions.
2+ YOE2+ years software development experience; bachelor\u0002s degree preferred; proficiency in Java, Python, C++, C#, VB.Net, SQL/T-SQL, JavaScript; cloud/Hybrid and DevOps experience; Agile/SDLC familiarity; testing and security best practices.
Java, Python, C++, C#, VB.Net, SQL/T-SQL, JavaScript, Git, Visual Studio Code, IntelliJ, React, Angular, Flutter, React Native, Azure
1w
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GIS Application Developer Sr.
Atlanta or Naperville
OnsiteFull Time
Southern Nuclear
Southern Nuclear: Operates nuclear energy plants to generate carbon-free power.
5+ YOE5+ years GIS application development experience with deep ESRI platform knowledge. Strong skills in C#, Java, Python, ESRI APIs, version control, and Agile practices. Ability to design, debug, and support GIS applications and mentor junior staff.
C#, Java, Python, ESRI .NET SDK, ESRI Java SDK, ESRI REST API, ESRI JavaScript API, Microsoft CoPilot for GitHub, Claude, TFS, GitHub, Oracle, JavaScript, TypeScript, Angular, Windows Server, JIRA
2mo
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Application Developer
Naperville, Illinois, United States
$60k-$80k/yr OnsiteFull Time
Investortools
Investortools: Software for fixed-income portfolio management and credit analysis.
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
3w
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Engineer Embedded Software
Rolling Meadows, Illinois, United States
$88k-$131k/yr OnsiteFull Time
Northrop Grumman
Northrop GrummanNYSE: NOC: Designs and manufactures advanced aerospace and defense systems.
2+ YOEBS in Electrical/Computer Engineering (or related STEM) with 2+ years experience (or MS with 0+ years). Experience with C#, C, Java or LabWindows CVI; troubleshooting hardware/software/firmware; test software development; ability to obtain Secret clearance; US citizenship required.
C#, C, Java, LabWindows CVI, Python, MATLAB, Cadence, GitHub, Oscilloscope, Signal Generator, Spectrum Analyzer, Network Analyzer
3w
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DevOps/Principal DevOps Engineer
Rolling Meadows, Illinois, United States
$88k-$163k/yr OnsiteFull Time
Northrop Grumman
Northrop GrummanNYSE: NOC: Designs and manufactures advanced aerospace and defense systems.
2+ YOEBachelor's in STEM (or equivalent experience), 2+ years (DevOps) or 5+ years (Principal), US citizenship, ability to obtain SAP/Secret clearance, experience with Python/C/C++, Linux, Kubernetes/OpenShift, CI/CD, cloud (AWS/Azure/GCP).
Python, C/C++, Java, JavaScript, Shell, Bash, Groovy, Go, Kubernetes, OpenShift, Ansible, Jenkins, GitLab CI, GitHub Actions, AWS CloudFormation, RHEL, Ubuntu, Amazon Web Services, Azure, Google Cloud Platform, Prometheus, Grafana, Datadog
1mo
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Systems Engineer/Principal Systems Engineer (Integration & Test)
Rolling Meadows, Illinois, United States
$88k-$163k/yr OnsiteFull Time
Northrop Grumman
Northrop GrummanNYSE: NOC: Develops and manufactures advanced aerospace, defense, and space systems.
2+ YOEUS citizen able to obtain/maintain government clearance (SAP/Secret); BS/MS/PhD in EE/ME or related; 2+ years (Systems) or 5+ years (Principal) experience; troubleshooting hardware/software/firmware; test planning and execution; DOORS, MBSE/Cameo, MATLAB, C/C++, Java, Python familiarity.
DOORS, Cameo, MATLAB, C, C++, Java, Python
2mo
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Engineer Embedded Software
Rolling Meadows, Illinois, United States
$88k-$131k/yr OnsiteFull Time
Northrop Grumman
Northrop GrummanNYSE: NOC: Designs and manufactures advanced aerospace and defense systems.
2+ YOEBS in ECE/CompE or related STEM with 2+ years (or MS with 0+ years); experience with C#, C, Java or Lab Windows CVI; hardware/software/firmware troubleshooting; ability to obtain Secret clearance; U.S. citizenship required.
C#, C, Java, Lab Windows CVI, Python, MATLAB, Cadence, GitHub, Oscilloscope, Signal Generator, Spectrum Analyzer, Network Analyzer
3w
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Engineer Embedded Software
Rolling Meadows, Illinois, United States
$88k-$131k/yr OnsiteFull Time
Northrop Grumman
Northrop GrummanNYSE: NOC: Develops and manufactures advanced aerospace, defense, and space systems.
2+ YOEBS in EE/CE or related STEM with 2+ years (MS acceptable with 0+ years), experience programming in C#, C, Java or Lab Windows CVI, troubleshooting hardware/software/firmware, ability to obtain Secret clearance, US Citizenship required; Python, MATLAB, Cadence, and test instrumentation experience preferred.
C#, C, Java, Lab Windows CVI, Python, MATLAB, Cadence, GitHub, Oscilloscope, Signal Generator, Spectrum Analyzer, Network Analyzer
3w
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2026 Startup Lab Associate—Software Engineering/Data Science [HYD]
Hyderabad or London or Schaumburg
OnsiteMultiple Commitments Available
Fulcrum GT
Fulcrum GT: Cloud-based enterprise software for professional services firms.
Recent bachelor's or advanced degree, experience developing in high-level languages (Python, JavaScript, Java, Swift), strong communication and organizational skills, entrepreneurial mindset, and full availability in Hyderabad from 13 July 2026 to 9 October 2026.
Python, JavaScript, Java, Swift
2d
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Manufacturing Test Engineer (RF Systems)
Rolling Meadows, Illinois, United States
$88k-$131k/yr OnsiteFull Time
Northrop Grumman
Northrop GrummanNYSE: NOC: Designs and manufactures advanced aerospace and defense systems.
2+ YOEAbility to develop and validate manufacturing tests, troubleshoot RF hardware, obtain/maintain Secret clearance, US citizenship, BS in Electrical/Computer Engineering (or MS), and ~2 years relevant experience.
Cadence, Python, MATLAB, C#, C, Java, Lab Windows CVI, Oscilloscope, Signal Generator, Spectrum Analyzer, Network Analyzer, GitHub
2d
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Manufacturing Test Engineer (RF Systems)
Rolling Meadows, Illinois, United States
$88k-$131k/yr OnsiteFull Time
Northrop Grumman
Northrop GrummanNYSE: NOC: Develops and manufactures advanced aerospace, defense, and space systems.
2+ YOEBS in Electrical/Computer Engineering with 2+ years (or MS with equivalent), US citizenship, ability to obtain Secret clearance, hardware test development and troubleshooting, Cadence experience, familiarity with test instruments.
Cadence, Python, MATLAB, C#, C, Java, Lab Windows CVI, Oscilloscope, Signal Generator, Spectrum Analyzer, Network Analyzer, GitHub
2d
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Manufacturing Test Engineer (RF Systems)
Rolling Meadows, Illinois, United States
$88k-$131k/yr OnsiteFull Time
Northrop Grumman
Northrop GrummanNYSE: NOC: Develops and manufactures advanced aerospace, defense, and space systems.
2+ YOEBS in Electrical/Computer Engineering (or MS) with relevant experience, 2+ years preferred; hardware troubleshooting, test development, schematic/Cadence experience; ability to obtain Secret clearance; US citizenship required.
Cadence, Python, MATLAB, C#, C, Java, Lab Windows CVI, Oscilloscope, Signal Generator, Spectrum Analyzer, Network Analyzer, GitHub
1mo
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Modeling & Simulation Systems Engineer
Rolling Meadows, Illinois, United States
$88k-$131k/yr OnsiteFull Time
Northrop Grumman
Northrop GrummanNYSE: NOC: Develops and manufactures advanced aerospace, defense, and space systems.
2+ YOEBS in engineering/physics/STEM with 2+ years (or MS/PhD with 0 years), US citizenship, ability to obtain government clearance (SAP/Top Secret), experience developing algorithms and models, proficiency in MATLAB, Python, and C/C++.
MATLAB, Python, C/C++, Java, AFSIM
1mo
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Modeling & Simulation Systems Engineer
Rolling Meadows, Illinois, United States
$88k-$131k/yr OnsiteFull Time
Northrop Grumman
Northrop GrummanNYSE: NOC: Designs and manufactures advanced aerospace and defense systems.
0+ YOEUS citizen able to obtain government clearance; BS in Engineering/Physics with 2+ years (or MS/PhD with 0 yrs). Experience developing algorithms/models, MATLAB/Python and familiarity with C/C++; strong technical writing and presentation skills.
MATLAB, Python, C, C++, Java, AFSIM
1mo
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Systems Engineer/Principal Systems Engineer (Integration & Test)
Rolling Meadows, Illinois, United States
$88k-$163k/yr OnsiteFull Time
Northrop Grumman
Northrop GrummanNYSE: NOC: Designs and manufactures advanced aerospace and defense systems.
2+ YOEUS citizen able to obtain government security clearance; BS in EE/ME/related (or MS/PhD) with 2+ years (or higher depending on level); experience troubleshooting hardware/software/firmware and integration & test activities; collaborative skills and willingness to travel (10%).
DOORS, Cameo, MATLAB, C, C++, Java, Python
2d
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Manufacturing Test Engineer (RF Systems)
Rolling Meadows, Illinois, United States
$88k-$131k/yr OnsiteFull Time
Northrop Grumman
Northrop GrummanNYSE: NOC: Designs and manufactures advanced aerospace and defense systems.
2+ YOEBS in Electrical/Computer Engineering (or MS) with hardware/test experience, 2+ years relevant experience (or MS with 0+), ability to obtain Secret clearance, hardware troubleshooting, Cadence experience.
Cadence, Python, MATLAB, C#, C, Java, Lab Windows CVI, Oscilloscope, Signal Generator, Spectrum Analyzer, Network Analyzer, GitHub
2d
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Manufacturing Test Engineer (RF Systems)
Rolling Meadows, Illinois, United States
$88k-$131k/yr OnsiteFull Time
Northrop Grumman
Northrop GrummanNYSE: NOC: Designs and manufactures advanced aerospace and defense systems.
2+ YOEBS in Electrical/Computer Engineering or related STEM with 2+ years (MS acceptable with 0+ years), hardware troubleshooting, Cadence experience, ability to obtain Secret clearance, US citizenship required; Python/MATLAB and test-instrument experience preferred.
Cadence, Python, MATLAB, C#, C, Java, LabWindows CVI, Oscilloscope, Signal Generator, Spectrum Analyzer, Network Analyzer, GitHub
1mo
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Manufacturing Test Engineering (RF Systems)
Rolling Meadows, Illinois, United States
$88k-$131k/yr OnsiteFull Time
Northrop Grumman
Northrop GrummanNYSE: NOC: Develops and manufactures advanced aerospace, defense, and space systems.
2+ YOEBachelor's in Electrical/Computer Engineering or related STEM with 2+ years (or Master's), experience with RF/electrical test equipment, reading schematics, active DoD Secret clearance and U.S. citizenship required.
spectrum analyzers, network analyzers, power supplies, C#, LabWindows CVI, Java, C, C++
1mo
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Manufacturing Test Engineering (RF Systems)
Rolling Meadows, Illinois, United States
$88k-$131k/yr OnsiteFull Time
Northrop Grumman
Northrop GrummanNYSE: NOC: Designs and manufactures advanced aerospace and defense systems.
2+ YOEBachelor's in ECE or related STEM with 2+ years experience (or Master's), experience with RF/electrical test equipment, active DoD security clearance (Secret), U.S. citizenship required.
C#, LabWindows/CVI, Java, C, C++, spectrum analyzer, power supply, network analyzer