Explore 3 senior java developer jobs from 3 hiring companies in Salem, IL, US. Filter by remote, salary, experience, and company, then open any listing to apply.

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Senior Java Developer

Centralia

Mount Vernon

Effingham

Vandalia

Highland

Greenville

Flora

Olney

Mascoutah

Benton

Odin

Breese

Fairfield

Carlyle

Du Quoin

Sandoval

Hillsboro

Pinckneyville

Nashville

Senior Java Developer Jobs

Caterpillar

HELLA

Netrist Solutions

Onsite

Remote

We are seeking a Senior Full
Stack Developer (Frontend Emphasis, React.js) to build and sustain a mission
critical command and control system for the Mobility Air Force. Your work will
focus on developing modern single page applications using React.js and
TypeScript, improving the user experience, and ensuring seamless integration
with secure backend APIs. You will contribute across the stack, but your
specialization will be front end architecture, UI performance, and maintainable
component development. You will collaborate closely
with backend developers, guide UI design decisions, and mentor junior engineers
within an Agile development environment. <h3>What you will do </h3><ul> <li style="">Design, implement, test, and deploy single page
 applications built with React.js and TypeScript. </li><li style="">Participate in front end architecture decisions,
 including state management, component structure, routing, and build
 configuration. </li><li style="">Develop reusable UI components, forms, and interactive
 views aligned with mission workflows. </li><li style="">Integrate React applications with Java and .NET backend
 services and RESTful APIs. </li><li style="">Build automated tests for the UI, including unit,
 integration, and end to end tests. </li><li style="">Ensure accessibility, responsiveness, and adherence to
 modern UI best practices. </li><li style="">Optimize performance through code splitting, lazy
 loading, and efficient rendering strategies. </li><li style="">Implement secure front end patterns, including
 dependency hygiene, API input validation, and token handling. </li><li style="">Review and refactor front end code to ensure
 maintainability and consistent patterns. </li><li style="">Mentor team members on React, TypeScript, testing
 strategies, and SPA architecture. </li></ul><div> </div><h3>What we like to see </h3><ul> <li style="">Strong proficiency with React.js, TypeScript, SPA
 architecture, and modern JavaScript tooling. </li><li style="">Experience with front end state management solutions
 such as Redux, Zustand, Recoil, or Context APIs. </li><li style="">Familiarity with build tools such as Webpack, Vite,
 Babel, or similar. </li><li style="">Experience consuming RESTful APIs and collaborating
 with backend developers to shape API contracts. </li><li style="">Understanding of accessibility and compliance standards
 common in government systems. </li><li style="">Experience deploying front end applications to AWS
 services such as S3, CloudFront, API Gateway, and Cognito. </li><li style="">Strong troubleshooting skills in UI performance,
 rendering, and cross browser compatibility. </li><li style="">Self directed with the ability to own features from
 concept to production. </li></ul><div> </div><h3>You should be familiar with </h3><ul> <li style="">HTML, CSS, JavaScript, and TypeScript. </li><li style="">React.js, React Router, and component-based
 architecture. </li><li style="">SPA security patterns for authenticated applications. </li><li style="">Modern front end testing frameworks such as Jest, React
 Testing Library, and Cypress. </li><li style="">RESTful API integration patterns. </li><li style="">Basic backend development in Java or .NET for full
 stack feature work. </li><li style="">Containerization concepts using Docker. </li><li style="">CI/CD practices for building, testing, and deploying
 front end assets. </li><li style="">Agile methodology. </li></ul><div> </div> <h3>Requirements</h3><ul><li style="">Minimum Experience: 5+ years of professional software
 development, including substantial front-end experience with React.js. </li><li style="">Experience owning front end architecture or major UI
 components in production SPA applications. </li><li style="">Bachelor’s degree in Computer Science, Engineering, or
 related field, or equivalent experience. </li><li style="">Ability to obtain or maintain a government security
 clearance. </li><li style="">Prior DoD or federal experience is strongly preferred. </li></ul>&nbsp; <div>This position is eligible for
remote work in the St. Louis area. However, the position
requires a government security clearance, so candidates must be U.S. citizens and eligible for work without a visa sponsorship </div> <h3>Benefits</h3><ul class="wp-block-list" style="color:rgb(23, 27, 39); font-family:PuviRegular, sans-serif; font-size:14px; font-style:normal; font-weight:400; letter-spacing:normal; orphans:2; text-indent:0px; text-transform:none; widows:2; word-spacing:0px; white-space:normal; background-color:rgb(255, 255, 255)"><li>Competitive Salary </li><li>Paid Time Off </li><li>Paid Federal Holidays </li><li>401K with matching </li><li>100% Paid Medical, Dental, Vision, Long &amp; Short Term Disability, and Basic Life </li><li>Flexible Spending Account </li><li>Health Reimbursement Arrangement </li><li>Work From Home Options </li><li>Education Assistance </li></ul><div> </div>

Senior Full Stack Developer - Front End

Full Stack Developer

5+ years of professional software development; senior-level frontend focus with React.js and TypeScript; ability to obtain government security clearance; DoD/federal experience preferred.

Career Area:EngineeringJob Description:Your Work Shapes the World at Caterpillar Inc. When you join Caterpillar, you&#39;re joining a global team who cares not just about the work we do – but also about each other.  We are the makers, problem solvers, and future world builders who are creating stronger, more sustainable communities. We don&#39;t just talk about progress and innovation here – we make it happen, with our customers, where we work and live. Together, we are building a better world, so we can all enjoy living in it.The Embedded Product Cybersecurity team is developing embedded cybersecurity solutions &amp; software for Caterpillar Display, Telematics, Machine, Engine, &amp; Autonomy product lines that will be used for years to come. The ideal candidate will be passionate about developing cybersecurity software solutions for Caterpillar’s embedded product line. They must also be willing to learn new areas of expertise in cybersecurity while working with multiple systems, software, component, and product teams to produce world class cybersecurity solutions for Caterpillar.  What You Will Do:<ul><li>Lead a team of approximately 15 with responsibility to design, develop, configure, and test our security-enabling software that targets a wide range of scopes, including full-stack ECU component software, system-wide onboard security software, offboard internal development tools, and ECU supplier manufacturing tools.</li><li>Participate in iterative development and fast delivery of features utilizing up-to-date technologies and practices like Linux, Python, C/C&#43;&#43;, Agile, and emergent design.</li><li>Design &amp; Document Cybersecurity features</li><li>Develop Embedded Cybersecurity solutions that will be implemented in C/C&#43;&#43;, Java, and Python languages</li><li>Validate Embedded Cybersecurity software features used across Caterpillar’s product line</li><li>Lead the team to assess and identify Cybersecurity software risks</li></ul>What You Will Have: <ul><li>Requirements Analysis: Knowledge of tools, methods, and techniques of requirement analysis; ability to elicit, analyze and record required business functionality and non-functionality requirements to ensure the success of a system or software development project.</li><li>Analytical Thinking: Knowledge of techniques and tools that promote effective analysis; ability to determine the root cause of organizational problems and create alternative solutions that resolve these problems.</li><li>Effective Communications: Understanding of effective communication concepts, tools and techniques; ability to effectively transmit, receive, and accurately interpret ideas, information, and needs through the application of appropriate communication behaviors.</li><li>Software Development: Knowledge of software design and development tools and activities; ability to produce software products or systems in line with product requirements.</li><li>Technical Troubleshooting: Knowledge of technical troubleshooting approaches, tools and techniques; ability to anticipate, recognize, and resolve technical issues on hardware, software, application or operation</li></ul>Top Candidates Will Also Have:<ul><li>Advanced degree in Electronics Technology, Electrical/Computer Engineering, Computer Science, or a related field.</li><li>Strong people interaction, teamwork, communication, and computer skills are required.</li><li>The candidate must be detail oriented and a proven “self starter,” with a strong record of achievement and results.</li><li>Solid experience with communication networks including Ethernet, J1939 Proprietary, Cat Data Link, and various data link protocols.</li><li>Extensive experience with design and development process of Data Link Communication Protocols</li><li>Desire to work in a fast-paced Agile team environment</li><li>Experience in Cybersecurity</li><li>Experience with GIT configuration management tool</li><li>Ability to read electrical schematics</li><li>Experience with RTOS development (i.e. Free RTOS)</li><li>Experience with CAN, J1939, and other data link protocols</li><li>Experience using Design Patterns and Object-Oriented programming</li><li>Experience with developing Unit Tests and Test-Driven Development</li><li>Experience using debugging tools for embedded systems (e.g. Lauterbach, GDB)</li></ul>Additional Information:<ul><li>The location for this position is Mossville, IL.  This role is on-site Monday to Friday.</li><li>Domestic relocation assistance is available for this position.</li><li>Sponsorship will NOT be offered for this position</li><li>This position may require less than 10% travel.</li></ul>#LI<h3></h3><h3></h3>Summary Pay Range:$147,760.00 - $221,640.00Compensation and benefits offered may vary depending on multiple individualized factors, job level, market location, job-related knowledge, skills, individual performance and experience. Please note that salary is only one component of total compensation at Caterpillar. Benefits:Subject to plan eligibility, terms, and guidelines. This is a summary list of benefits.<ul><li>Medical, dental, and vision benefits*</li><li>Paid time off plan (Vacation, Holidays, Volunteer, etc.)*</li><li>401(k) savings plans*</li><li>Health Savings Account (HSA)*</li><li>Flexible Spending Accounts (FSAs)*</li><li>Health Lifestyle Programs*</li><li>Employee Assistance Program*</li><li>Voluntary Benefits and Employee Discounts*</li><li>Career Development*</li><li>Incentive bonus*</li><li>Disability benefits</li><li>Life Insurance</li><li>Parental leave</li><li>Adoption benefits</li><li>Tuition Reimbursement</li></ul>       * These benefits also apply to part-time employees<h3></h3><h3></h3>This position requires working onsite five days a week.<h3></h3><h3></h3>Relocation is available for this position.<h3></h3>Visa Sponsorship is not available for this position.<h3></h3><h3></h3>Posting Dates:Any offer of employment is conditioned upon the successful completion of a drug screen.      Caterpillar is an Equal Opportunity Employer, Including Veterans and Individuals with Disabilities.  Qualified applicants of any age are encouraged to apply.Not ready to apply? Join our <a href="http://flows.beamery.com/caterpillarinc/talcom" target="_blank">Talent Community</a>.

Embedded Software Engineering Senior Specialist - Cybersecurity

Embedded Software Engineering

Lead a cybersecurity-focused embedded software team; design, develop, test, and document cybersecurity features for Caterpillar embedded products.

<center><img src="https://hella.csod.com/clientimg/hella/jobAdUploads/Requisition_header.jpg"></center>Shopfloor Software Specialist IVLocation FORVIA HELLA is a listed international automotive supplier. As a company of the FORVIA Group, FORVIA HELLA stands for high-performance lighting technology and vehicle electronics and, with the Lifecycle Solutions Business Group, also covers a broad service and product portfolio for the spare parts and workshop business as well as for manufacturers of special vehicles. With currently around 36,500 employees at over 125 locations, the Company is active worldwide and generated adjusted sales of €8.1 billion in fiscal year 2024.YOUR TASKS <ul>
<li>Develop, implement, and maintain Shopfloor Control software system throughout the organization.</li>
<li>Provide technical support and assistance to staff across departments using the Shopfloor Control system.</li>
<li>Work in partnership with the production and IT teams to identify system requirements and improvements.</li>
<li>Implement software upgrades and patches as necessary to maintain system operationality and security.</li>
<li>Design and develop data collection interfaces and tools to integrate with Shopfloor Control software systems.</li>
<li>Conduct regular system health checks, troubleshooting issues, and ensuring the accuracy and consistency of data.</li>
<li>Coordinate and conduct user trainings, providing detailed instructions and support materials to maximize technical understanding and user adoption.</li>
<li>Investigate and address system errors or glitches, applying a structured methodology to problem-solving.</li>
<li>Gather user feedback to understand needs and challenges, using this information to suggest software enhancements or improvements.</li>
<li>Ensure adherence to data management and documentation practices, complying with all relevant regulations and legislation.</li>
<li>Maintain records of software implementation processes, failures, changes, and user feedback.</li>
<li>Assess third-party tools and solutions for compatibility and integration possibilities.</li>
<li>Keep abreast of latest shopfloor software and technologies, best practices, and next-generation concepts.</li>
</ul> YOUR QUALIFICATIONS <ul>
<li>Salary Range: $67,000-$77,000</li><li>Bachelor's degree or higher in Computer Science, Information Technology, or related field preferred.</li>
<li>Minimum 5 years of experience in shopfloor control systems software development and implementation.</li>
<li>Proficient in common programming languages such as SQL, Java, Python, C++ or similar.</li>
<li>Experience with data acquisition and control systems used in industrial environments.</li>
<li>Strong ability to diagnose and solve complex technical issues.</li>
<li>Excellent communication skills to provide technical support and conduct end-user trainings.</li>
<li>Knowledge of data management practices and data governance principles.</li>
<li>Experience with software project management, including Agile and Scrum methodologies.</li>
<li>Awareness of industrial operations and processes, and how these rely on shopfloor software applications.</li>
<li>Familiar with standard industry regulations and legislation related to data and security.</li>
<li>Track record of managing multiple tasks and projects concurrently, meeting tight deadlines.</li>
<li>Ability to work both independently and in a team, with a keen eye for detail.</li>
<li>Experience with third-party system integration is advantageous.</li>
</ul> Even if you do not meet all our requirements, do not hesitate to apply to us, because the further development of our employees is very important to us and opens up a wide range of opportunities for you in our company. FORVIA HELLA stands for the variety of all employees. Inclusion and diversity are firmly anchored in our company culture. We are continuously looking for new team players and welcome applications from all interested parties, regardless of their ethical and social background, age, religion, gender, disability, sexual orientation or identity. Please send us your application via our career portal, stating your salary requirements and earliest possible starting date, with the reference number req17886.  HELLA Electronics Corp., USA Staci R Houston 1101 Vincennes Ave, Flora   62839 Phone:

Shopfloor Software Specialist IV

5+ years in shopfloor control software; bachelor's in CS/IT; proficient in SQL, Java, Python, C++; experience with industrial data acquisition; Agile/Scrum; data governance.

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