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Sr Software Engineer Java Jobs in Rockford, IL (NOW HIRING)

Harris

Software Engineer

Oregon, IL

$80K - $90K/yr

Deep understanding of Core Java (Java 11/17+), JVM internals, memory management, tuning, and ... software engineering principles, design patterns, algorithms, and system architecture ...

Danaher

Software Engineer Internships

Dekalb, IL

Writing and debugging code in languages such as C#, Java, Python, or C++ * Participating on an ... Software Engineering, Biomedical Engineering (with computational focus), or related field

Danaher

Software Engineer Internships

Rockford, IL · On-site

Writing and debugging code in languages such as C#, Java, Python, or C++ * Participating on an ... Software Engineering, Biomedical Engineering (with computational focus), or related field

Danaher

Software Engineer Internships

Dekalb, IL · On-site

Writing and debugging code in languages such as C#, Java, Python, or C++ * Participating on an ... Software Engineering, Biomedical Engineering (with computational focus), or related field

CSAA

Software Engineer II - Remote

Oregon, IL · On-site

Job Title Software Engineer II - Remote Requisition Number R7726 Software Engineer II - Remote ... Java/J2EE, Python or NodeJS * REST Webservices/GraphQL * Requirements Gathering * AWS Native ...

Varsity Tutors

Java Tutor

Dekalb, IL · Remote

$18 - $40/hr

Emphasizes clean code principles and test-driven development, connecting Java to web development, Android applications, and enterprise software engineering. * Curriculum Awareness & Adaptive ...

Comply365

Senior Mobile Software Engineer - iOS

Beloit, WI · On-site

$132K/yr

We believe in celebrating one another's achievements, open communication, and transparent leadership.  About the role We're seeking a Senior Mobile Software Engineer (iOS) with strong Swift and ...

Vistair

Senior Mobile Software Engineer - iOS

Beloit, WI · Hybrid

$132K/yr

About the role We're seeking a Senior Mobile Software Engineer (iOS) with strong Swift and Objective-C expertise to help drive the next generation of our best-in-class iOS app. You'll lead the ...

Comply365

Senior Mobile Software Engineer iOS

Beloit, WI · On-site

$132K/yr

About the role Were seeking a Senior Mobile Software Engineer (iOS) with strong Swift and Objective-C expertise to help drive the next generation of our best-in-class iOS app. Youll lead the ...

Harris

Senior Mobile Developer

Oregon, IL

$125K - $135K/yr

... Software Engineer with a focus on designing and building complex, scalable systems. - Deep understanding of software engineering principles, design patterns, algorithms, and system architecture ...

Hawkins Inc.

Senior Electrical Engineer

Loves Park, IL · On-site

$103K - $134K/yr

ABOUT THE JOB The Senior Electrical Engineer is responsible for designing, directing, and ... Engineers projects by selecting and designing electrical hardware and software, developing detailed ...

WaterSurplus

Senior Electrical Engineer

Loves Park, IL · On-site

$103K - $134K/yr

ABOUT THE JOB The Senior Electrical Engineer is responsible for designing, directing, and ... Engineers projects by selecting and designing electrical hardware and software, developing detailed ...

Hawkins

Senior Electrical Engineer

Loves Park, IL · On-site

$103K - $134K/yr

ABOUT THE JOB The Senior Electrical Engineer is responsible for designing, directing, and ... Engineers projects by selecting and designing electrical hardware and software, developing detailed ...

Harris

(Remote) GIS Developer

Oregon, IL · Remote

In this role, you will directly contribute to that mission by ensuring our software provides a ... Demonstrated experience with at least one major programming language (e.g., C++, Python, Java, C#)

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All JobsSr Software Engineer Java JobsSr Software Engineer Java Jobs in Rockford, IL

Sr Software Engineer Java information

See Rockford, IL salary details

$40.5K

$151.1K

$265.2K

How much do sr software engineer java jobs pay per year?

As of Aug 4, 2026, the average yearly pay for sr software engineer java in Rockford, IL is $151,052.00, according to ZipRecruiter salary data. Most workers in this role earn between $125,100.00 and $164,600.00 per year, depending on experience, location, and employer.

What are the key skills and qualifications needed to thrive as a Sr Software Engineer Java?

To thrive as a Sr Software Engineer Java, you need advanced proficiency in Java programming, software design principles, and a bachelor’s degree (or higher) in computer science or a related field. Familiarity with tools such as Spring Framework, RESTful APIs, version control systems like Git, and cloud platforms is typically required, along with relevant certifications like Oracle Certified Professional Java Programmer. Excellent problem-solving skills, effective communication, and the ability to mentor junior developers make someone stand out in this position. These skills ensure the delivery of robust, scalable applications and foster efficient collaboration in complex development environments.

What does a Sr Software Engineer Java do?

A Sr Software Engineer Java is responsible for designing, developing, and maintaining complex software applications using the Java programming language. They often lead technical projects, mentor junior developers, and ensure that software solutions are robust, scalable, and secure. Their work involves collaborating with cross-functional teams, reviewing code, and implementing best practices to deliver high-quality products. Senior engineers also play a key role in architectural decisions and contribute to the overall technical direction of their team or organization.

What is the difference between Sr Software Engineer Java vs Software Developer Java?

AspectSr Software Engineer JavaSoftware Developer Java
Required CredentialsBachelor's degree, 5+ years experience, possibly certifications like Oracle Certified ProfessionalBachelor's degree, 1-3 years experience, often entry-level certifications
Work EnvironmentDesigning architecture, leading projects, mentoring teamsWriting code, debugging, implementing features
Employer & Industry UsageTech companies, finance, healthcare, enterprise solutionsStartups, tech firms, software consultancies
Search & Comparison IntentHigher-level roles, leadership, complex projectsEntry to mid-level development tasks

In summary, Sr Software Engineer Java typically involves more experience, leadership, and architectural responsibilities, while Software Developer Java focuses on coding and feature implementation. Both roles are common in tech industries but differ in scope and seniority.

What are some common challenges Sr Software Engineers specializing in Java face when leading project teams?

Sr Software Engineers working with Java often encounter challenges such as balancing hands-on coding with mentorship responsibilities, managing technical debt in legacy systems, and aligning project goals with business requirements. They frequently need to facilitate effective communication between developers, QA engineers, and stakeholders to ensure project milestones are met. Additionally, staying updated with evolving Java frameworks and best practices while guiding less experienced team members is essential for maintaining code quality and team productivity.
What cities near Rockford, IL are hiring for Sr Software Engineer Java jobs? Cities near Rockford, IL with the most Sr Software Engineer Java job openings:
Sr Software Engineer Java jobs near you
Infographic showing various Sr Software Engineer Java job openings in Rockford, IL as of July 2026, with employment types broken down into 87% Full Time, 10% Part Time, 2% Contract, and 1% Nights. Highlights an 87% Physical, 4% Hybrid, and 9% Remote job distribution, with an average salary of $151,052 per year, or $72.6 per hour.

Software Engineer

Harris

Oregon, IL

$80K - $90K/yr

Full-time

Posted 25 days ago

Harris Computer rating

8.5

Company rating: 8.5 out of 10

Based on 10 frontline employees who took The Breakroom Quiz

77th of 241 rated software companies

Job description

Responsibilities & Duties:
- Write code and contribute to the development of software applications, modules, or components.
- Participate in higher-level aspects of the development process, such as requirements analysis, design, architecture, system integration, testing, and project management.
- Partake in testing code to identify and fix bugs and ensure the quality and reliability of the software.
- Collaborate with other team members, including software architects, designers, and product managers, to ensure alignment with project goals and timelines.

- Proficiency in Java: Deep understanding of Core Java (Java 11/17+), JVM internals, memory management, tuning, and concurrency/multithreading.

- Enterprise Frameworks: Experience with Spring in particular Spring Boot.

- RESTful API Design: Experience designing, building, and securing robust, scalable REST APIs for third-party integrations and internal UI consumption.

- Database Expertise: Proficiency with relational and non-relational databases (e.g., PostgreSQL, MySQL, MongoDB).

- Search Engine Technology: Experience with search and indexing technologies such as Elasticsearch.

- Experience in React, Next.js and Material UI.

- Worked on AI assisted development (e.g. GitHub Copilot, Claude, Cursor or ChatGPT)

- Familiarity with AI directed prompt engineering for developing applications.


Requirements:
- Bachelor's degree or Diploma in Computer Science, Engineering, related field, or equivalent work experience.
- 3+ years of experience in software development, with proficiency in one or more programming languages.
- Understanding of software engineering principles, design patterns, algorithms, and system architecture.
- Familiarity with modern software development tools, frameworks, and methodologies.

Salary range: $80,000 - $90,000 USD per year.

What Harris Computer employees say

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About Harris Computer Systems

Sourced by ZipRecruiter

Harris Computer Systems, based in Ottawa, ON, CA, is an established player in the field of public sector software technology. Since its inception in 1976, the company has been striving to make clients' operations more efficient through reliable, practical, and flexible software solutions. Its extensive portfolio primarily serves utility, healthcare, public sector, and educational institutions, contributing to the betterment of public services through technology. Harris strongly believes in the value of forward-thinking technology and the power it has to drive progress for the public sector. This methodology is entirely in line with their mission to ensure customer success by providing reliable, practical, and robust software solutions.

Industry

Accounting services

Company size

1,001 - 5,000 Employees

Headquarters location

Ottawa, ON, CA

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