1

Kotlin Java Jobs in Illinois (NOW HIRING)

The ideal candidate brings strong experience in Java/Kotlin development, a solid foundation in software design and debugging, and a proactive approach to problem-solving and will play a key role in ...

Proficient in full-stack development with expertise in either modern JavaScript & React, or backend-languages like C#, Java, Kotlin, Python, etc., along with API design and documentation

You'll train in technologies including Java, IntelliJ, MySQL, Spring, HTML, CSS, JavaScript, REST, and React. Now hiring for our Software Developer cohort starting in November 2026. To apply ...

Android Developer

Deerfield, IL · On-site

$56.75 - $74.50/hr

Strong proficiency in Kotlin and/or Java. * Experience with Android SDK, Android Studio, and Jetpack components (LiveData, ViewModel, Navigation, etc.). * Hands-on experience with RESTful APIs, JSON ...

Experience with the JVM and at least one JVM language such as Java, Kotlin, and Scala. Experience designing and product ionizing large-scale distributed systems You May Thrive in this Role if You:

... Kotlin or Java for Android development. • Solid experience with Node.js and TypeScript, including writing and maintaining automated tests. • Experience with test frameworks such as Mocha (or ...

Guidewire Developer-ClaimCenter

Downers Grove, IL · On-site +1

$54.25 - $71.75/hr

Languages such as Java, Gosu, Kotlin, HTML/CSS, JavaScript, TypeScript * Spring Boot and container orchestration (EKS/ECS) * SQL and secure coding practices * Cloud-native architecture and AWS ...

Guidewire Developer-ClaimCenter

Chicago, IL · On-site +1

$56.25 - $74.25/hr

Languages such as Java, Gosu, Kotlin, HTML/CSS, JavaScript, TypeScript * Spring Boot and container orchestration (EKS/ECS) * SQL and secure coding practices * Cloud-native architecture and AWS ...

Support Engagement Lead

Chicago, IL · On-site

$85K - $112K/yr

Mobile Development (Swift, Java, Kotlin), Kibana, Snowflake, Datadog, Email architecture and deliverability * Experience with HTML, CSS, Javascript, Ruby, Java, or other programming language Please ...

Leverage native platform capabilities through Swift, Objective-C, Kotlin, and Java when required. * Integrate native modules, third-party SDKs, and platform-specific functionality. * Ensure efficient ...

Leverage native platform capabilities through Swift, Objective-C, Kotlin, and Java when required. * Integrate native modules, third-party SDKs, and platform-specific functionality. * Ensure efficient ...

Advanced expertise in Kotlin and Java, including deep understanding of asynchronous programming (Coroutines, Flow/RxJava). * Automated Testing Mastery: Hands-on experience creating reliable automated ...

Senior Software Engineer

Westchester, IL · On-site

$121K - $160K/yr

Good grasp of JVM-based language fundamentals (Java or Kotlin); able to read, reason about, and contribute to codebases beyond the primary stack when the need arises. * Microsoft Azure - solid ...

Showing results 41-60

Kotlin Java information

How do Kotlin and Java developers typically collaborate within a team environment?

Kotlin and Java developers often work closely together, especially in organizations transitioning from Java to Kotlin or maintaining hybrid codebases. Collaboration involves code reviews, sharing best practices for interoperability, and jointly resolving integration issues. Teams usually use shared repositories and continuous integration tools to ensure smooth collaboration, with regular communication to align on coding standards and project goals. This environment encourages learning and cross-training, as developers can gain experience with both languages and contribute to refactoring or migrating code as needed.

What is the difference between Kotlin Java vs Android Developer?

AspectKotlin JavaAndroid Developer
Primary SkillsProficiency in Kotlin and Java programming languagesAndroid app development, Java/Kotlin coding, UI design
CertificationsJava certifications, Kotlin certifications (optional)Android development certifications (e.g., Google Associate Android Developer)
Work EnvironmentSoftware development teams, mobile app projectsMobile app projects, Android studios, cross-functional teams
Industry UsageBackend, Android app development, cross-platform projectsPrimarily Android app development for mobile devices

While Kotlin Java refers to programming languages used in Android development, an Android Developer specializes in creating Android applications using languages like Kotlin and Java. Kotlin Java skills are essential for Android Developers, but the role also involves UI design, testing, and deployment. Understanding the differences helps clarify whether you're focusing on programming languages or the broader role of Android app creation.

What is a Kotlin Java developer?

Kotlin Java developers are professionals skilled in both the Kotlin and Java programming languages. They typically work on building, maintaining, and optimizing applications, especially for the Android platform, since both languages are widely used for Android development. These developers leverage Java's robustness and Kotlin's modern features to create efficient, reliable, and scalable software solutions. Their expertise allows for seamless migration between Java and Kotlin codebases and the integration of new features using either language.

What are the key skills and qualifications needed to thrive as a Kotlin/Java developer, and why are they important?

To thrive as a Kotlin/Java Developer, you need a solid understanding of object-oriented programming, data structures, algorithms, and proficiency in both Kotlin and Java languages, often supported by a degree in computer science or related fields. Familiarity with build tools (like Gradle or Maven), version control systems (such as Git), and frameworks like Spring or Android SDK is highly valuable. Strong problem-solving abilities, teamwork, and effective communication skills set top developers apart in collaborative environments. These skills ensure efficient development, maintainable code, and successful project delivery in dynamic software teams.
What job categories do people searching Kotlin Java jobs in Illinois look for? The top searched job categories for Kotlin Java jobs in Illinois are:
What cities in Illinois are hiring for Kotlin Java jobs? Cities in Illinois with the most Kotlin Java job openings:
Infographic showing various Kotlin Java job openings in Illinois as of August 2026, with employment types broken down into 1% Internship, 80% Full Time, 3% Part Time, and 16% Contract. Highlights an 83% Physical, 4% Hybrid, and 13% Remote job distribution.

Android Software Engineer II

Life Fitness

Schaumburg, IL • On-site

$81K - $117K/yr

Full-time

Medical, Dental, Vision, Life, Retirement, PTO

Re-posted 10 days ago


Life Fitness rating

7.7

Company rating: 7.7 out of 10

Based on 22 frontline employees who took The Breakroom Quiz

229th of 487 rated machine equipment manufacturers


Job description

Join us as we empower the world to work out, creating healthier lives together.
We are seeking an Android Engineer to join Life Fitness / Hammer Strength, contributing to the design and development of high-quality, reliable mobile applications. The ideal candidate brings strong experience in Java/Kotlin development, a solid foundation in software design and debugging, and a proactive approach to problem-solving and will play a key role in delivering production-ready software while supporting continuous improvement through modern development practices.
This is a hybrid role, based out of the Nieto-Jones Performance Center in Schaumburg, IL. #LI-Hybrid - Monday and Friday are remote, Tuesday through Thursday are in-office collaboration days.
RESPONSIBILITIES:
  • As a fully competent software engineer, independently evaluates, selects and applies standard engineering techniques, procedures and criteria, using judgment in making adaptations and modifications.
  • Designs and codes software with exceptional quality, meeting designated release plans and delivery commitments.
  • Independently performs assignments, within scope of defined program, with instructions as to general results expected.
  • Follows industry standard practices of conducting design reviews, code walk throughs, unit level testing, and integration testing.
  • Works closely with the Software Quality Assurance team to test, troubleshoot, resolve, and release production software.
  • Ensures prompt response to production and customer issues.
  • Effectively uses AI-assisted development tools (such as GitHub Copilot and VS Code AI extensions) to accelerate development, improve test coverage, enhance documentation, and support root-cause analysis.
  • Ability to work well with others, learn on the job, and thrive in a dynamic work environment.

REQUIRED SKILLS AND ABILITIES
  • 3+ years of demonstrable experience in OO software design and development
  • 3+ years of experience with Java/Kotlin
  • Experience building and debugging Android applications and services preferably on embedded devices (AOSP-based systems, custom hardware, or constrained environments)
  • Experience analyzing logcat, kernel logs, ANR traces, and system-level crash reports.
  • Strong understanding of software design patterns and how, why, and when to apply them
  • Solid foundation in data structures, algorithms, and design with strong analytical and debugging skills.
  • Experience using AI-powered coding assistants (e.g. GitHub Copilot) for tasks such as code generation, refactoring, test creation, and documentation.
  • Familiarity with VS Code AI integrations and ability to incorporate AI-supported workflows into daily development.
  • Confident team player motivated by a fast-paced environment.
  • Ability to learn existing architecture quickly
  • Strong analytical, communication, and presentation skills
  • Minimum B.S. in Computer Science, Software Engineering, Computer Engineering, or related discipline

PREFERRED SKILLS
  • Basic knowledge of the Linux OS is a plus.
  • Experience with Firebase Crashlytics and Real Time Databases.
  • Experience evaluating or integrating AI-assisted development practices, including prompt-driven coding, AI-supported code reviews, or automated test generation.
  • Experience modifying or building AOSP, including system services, frameworks, or vendor layers.

At Life Fitness / Hammer Strength, we think customer first, play as one team, and raise the bar on fitness innovation-in the gym and in every corner of our facilities. We persevere and get it done, with a clear purpose to inspire each other to live healthier lives. If you're ready to bring out the best in people while powering the future of fitness manufacturing, we invite you to apply.
Want to take the next step in your career? Life Fitness / Hammer Strength takes pride in our talented employees and believes in providing opportunities for further growth and advancement. We encourage you to test your strengths, push your limits, and unleash your potential. If you feel the position is right for you, we invite you to apply. We'll work with you closely to support you throughout the hiring process. If your CV/ resume shows that your skills and experience have synergy with the job description, then we'll hop on a call to get to know you and your experience and discuss the position in more detail. If it's not the right opportunity this time, we'll always let you know.
At Life Fitness / Hammer Strength, we believe in taking care of our team with a comprehensive total rewards package that includes competitive pay and a range of valuable benefits. The salary range for this position, intended for U.S. applicants, is $81,000 - $117,400 annually.The actual salary will vary based on applicant's education, experience, skills, and abilities. The salary range reflected is based on a primary work location of Life Fitness Schaumburg and the actual salary may vary for applicants in a different geographic location.This position is eligible to participate in Life Fitness / Hammer Strength's annual Manager Incentive Plan to receive an annual discretionary bonus in addition to base salary. The amount of bonus varies based on company and individual performance goals and is subject to the terms and conditions of the applicable incentive plan.
Life Fitness / Hammer Strength offers a comprehensive package of benefits for full-time team members, including, but not limited to: a 401(k) savings plan with 4% employer match; medical, dental and vision insurance, parental, medical and military leaves of absence, paid time off, including 12 paid holidays throughout the calendar year, paid vacation days beginning at 13 days annually, paid sick leave as provided under state and local paid sick leave laws, company paid short-term disability and optional long-term disability, health savings account, health care and dependent care reimbursement accounts, employee and dependent life insurance and supplemental life and AD&D insurance, hospital indemnity; identity protection, legal services, adoption assistance, tuition assistance, commuter benefits, employee discounts, and an employee assistance program that includes free counseling sessions. Eligibility for benefits is governed by the applicable plan documents and policies.
Life Fitness / Hammer Strength is an equal opportunity employer. All qualified applicants, including individuals with disabilities and protected veterans, are encouraged to apply. Life Fitness / Hammer Strength complies with all applicable federal, state, and local laws regarding employment, recruitment and hiring. All qualified applicants are considered for employment without regard to race, color, religion, age, sex, sexual orientation, gender identity, national origin, citizenship status, disability, protected veteran status, or any other category protected by applicable federal, state, or local laws.
There continues to be a significant increase in phishing attempts across all industries where fraudsters are impersonating real employees and sending fictitious job offers to applicants in a scheme to obtain sensitive information. Please note that Life Fitness/Hammer Strength will never ask for your financial information at any part of the interview process, including the post-offer stage, and will only correspond through "@lifefitness.com" or "@indoorcycling.com" domain email addresses or "lifefitness@myworkday.com" for U.S. opportunities.
Life Fitness/Hammer Strength does not accept applications, inquiries or solicitations from unapproved staffing agencies or vendors.

What Life Fitness employees say

Pay

Benefits

Hours and flexibility

Workplace

Get the full story on Breakroom