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Senior Java Developer Jobs in Oak Creek, WI (NOW HIRING)

LRS

Senior Controls Systems Engineer

Waukesha, WI

$105K - $120K/yr

Codeworks, an LRS company, is seeking a Sr. Controls Systems Engineer for a permanent opportunity ... Working knowledge of SQL, Python, or Java (preferred but not required). Experience working in ...

Mindful Measures Inc

Full Stack Developer

Milwaukee, WI · On-site

Senior Project Manager Start Date : ASAP Location : Milwaukee, WI 53224 100% IN PERSON (NO REMOTE ... Knowledge of server-side programming languages including Net, Java, Ruby and Python * Database and ...

Mindful Measures Inc

Full Stack Developer

Milwaukee, WI · On-site

Senior Project Manager Start Date : ASAP Location : Milwaukee, WI 53224 100% IN PERSON (NO REMOTE ... Knowledge of server-side programming languages including Net, Java, Ruby and Python * Database and ...

Harley-Davidson

Sr Mechatronics Engineer

Wauwatosa, WI · On-site

$109K - $159K/yr

Auto req ID: 53318 Title: Sr Mechatronics Engineer Job Function: Engineering Location: PDC ... Developing software or scripting in languages like C/C++, Python, Matlab/Simulink, and Java.

Harley-Davidson

Sr Mechatronics Engineer

Wauwatosa, WI · On-site

$109K - $159K/yr

Auto req ID: 53318 Title: Sr Mechatronics Engineer Job Function: Engineering Location: PDC ... Developing software or scripting in languages like C/C++, Python, Matlab/Simulink, and Java.

Worldpay, Inc.

Senior Backend Engineer

Milwaukee, WI · Hybrid

Your focus will be on driving Java and Spring Boot-based services, APIs, and integrations that ... You'll unblock developers, assign work, and ensure test coverage and documentation are complete.

FIS

Senior Backend Engineer

Milwaukee, WI · Hybrid

Your focus will be on driving Java and Spring Boot-based services, APIs, and integrations that ... You'll unblock developers, assign work, and ensure test coverage and documentation are complete.

Generac

Senior Controls Engineer

Waukesha, WI

$97K - $128K/yr

Generac is seeking a Senior Controls Enginee r to join our Advanced Manufacturing team at our ... Experience with SQL and Python/Java would be a plus. * Able to communicate effectively in a ...

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All JobsSenior Java Developer JobsSenior Java Developer Jobs in Oak Creek, WI

Senior Java Developer information

See Oak Creek, WI salary details

$10

$59

$82

How much do senior java developer jobs pay per hour?

As of Jun 16, 2026, the average hourly pay for senior java developer in Oak Creek, WI is $59.94, according to ZipRecruiter salary data. Most workers in this role earn between $52.50 and $66.97 per hour, depending on experience, location, and employer.

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

AspectSenior Java DeveloperJava Software Engineer
Required CredentialsBachelor's in CS or related, Java certifications often preferredBachelor's in CS or related, Java certifications beneficial
Work EnvironmentTeam lead roles, project management, mentoringDevelopment-focused, coding, testing, and implementation
Employer & Industry UsageTech companies, finance, e-commerceSoftware firms, startups, enterprise IT
Common Search & ComparisonOften compared for experience level and responsibilitiesSimilar roles with slight variations in scope

The main difference between a Senior Java Developer and a Java Software Engineer lies in their responsibilities and experience. Senior Java Developers typically take on leadership, mentoring, and project management roles, while Java Software Engineers focus more on coding, development, and technical implementation. Both roles require strong Java skills and relevant credentials, but the Senior Java Developer usually has more experience and a broader scope of responsibilities.

Is Java outdated in 2026?

Java remains a widely used programming language for senior Java developers in 2026, with ongoing updates and a large ecosystem supporting enterprise applications, Android development, and cloud services. Its stability, performance, and extensive libraries ensure its continued relevance in the software industry.

What are some common challenges Senior Java Developers face when working on large-scale enterprise projects?

Senior Java Developers often encounter challenges such as maintaining code quality across large codebases, managing dependencies between modules, and ensuring optimal application performance. Collaborating with cross-functional teams—including QA, DevOps, and product management—requires clear communication and effective problem-solving. Additionally, staying updated with the latest Java frameworks and best practices is essential for delivering scalable and maintainable solutions in complex enterprise environments.

How much do senior Java developers make?

Senior Java developers typically earn between $100,000 and $150,000 annually, depending on experience, location, and industry. They often possess strong skills in frameworks like Spring and Hibernate and may hold certifications such as Oracle Certified Professional Java SE.

What are the key skills and qualifications needed to thrive as a Senior Java Developer, and why are they important?

To thrive as a Senior Java Developer, you need advanced proficiency in Java programming, experience with software design patterns, and a strong grasp of backend development, often supported by a degree in computer science or related field. Familiarity with frameworks like Spring, build tools such as Maven or Gradle, and version control systems like Git, as well as knowledge of cloud platforms, is typically required. Excellent problem-solving, leadership, and communication skills help you guide teams and collaborate effectively. These competencies are crucial for delivering robust, scalable software solutions and driving technical success within development teams.

What are Senior Java Developers?

Senior Java Developers are experienced software engineers who specialize in using the Java programming language to design, develop, and maintain complex applications. They typically lead development teams, oversee project architecture, and ensure code quality through best practices. In addition to strong coding skills, they often mentor junior developers and collaborate with stakeholders to deliver robust software solutions. Their expertise is crucial in building scalable, high-performance applications across various industries.

Which pays more, C++ or Java?

For a Senior Java Developer, salary differences between C++ and Java roles depend on industry, location, and experience. Generally, C++ developers may earn higher salaries in fields like finance or game development due to specialized skills, while Java developers are often in demand for enterprise applications. Both skills are valuable, and compensation varies based on the specific job market and required expertise.

Is AI replacing Java developers?

AI is automating certain coding tasks and improving software development processes, but it does not replace the need for senior Java developers. Java developers are essential for designing, maintaining, and optimizing complex applications, and their expertise remains valuable despite advancements in AI tools. Skills in problem-solving, system architecture, and understanding AI integration are increasingly important for Java professionals.
What cities near Oak Creek, WI are hiring for Senior Java Developer jobs? Cities near Oak Creek, WI with the most Senior Java Developer job openings:
Senior Java Developer jobs near you
Infographic showing various Senior Java Developer job openings in Oak Creek, WI as of June 2026, with employment types broken down into 1% As Needed, 89% Full Time, 8% Part Time, 1% Temporary, and 1% Contract. Highlights an 87% Physical, 5% Hybrid, and 8% Remote job distribution, with an average salary of $124,675 per year, or $59.9 per hour.
Software Development Engineering - Sr Professional II

Software Development Engineering - Sr Professional II

Fiserv, Inc.

Milwaukee, WI • On-site

$53.75 - $71/hr

Full-time

Posted 3 days ago

Fiserv rating

7.6

Company rating: 7.6 out of 10

Based on 85 frontline employees who took The Breakroom Quiz

106th of 138 rated financial services

Job description

Calling all innovators - find your future at Fiserv.
We're Fiserv, a global leader in Fintech and payments, and we move money and information in a way that moves the world. We connect financial institutions, corporations, merchants and consumers to one another millions of times a day - quickly, reliably, and securely. Any time you swipe your credit card, pay through a mobile app, or withdraw money from the bank, we're involved. If you want to make an impact on a global scale, come make a difference at Fiserv.
Job Title
Software Development Engineering - Sr Professional II
TITLE: Software Development Engineering - Sr Professional II
EMPLOYER: Fiserv Solutions, LLC
LOCATION: Milwaukee, WI (and various unanticipated locations throughout the U.S. subject to authorization from management)
DUTIES: Design and develop enterprise on-prem solutions. Contribute to all phases of the development lifecycle. Coordinate resources, prepare project teams for kickoff, ensure effective completion of project milestones, control project scope and mitigate risks. Manage daily support and maintenance and conduct long-term improvement operations to ensure compatibility with evolving mission requirements. Provide technical leadership for delivery teams creating shared frameworks and services. Develop and establish department standards and procedures. Recommend the most efficient ways to ensure best implementation practices of new or upgraded products. Evaluate and report progress and results. Prepare and produce releases of software components. Help drive process improvements in development and operations as well as interact with customers and executives to offer root cause analysis and explanations of a technical nature.
REQUIREMENTS: Bachelor's degree in Computer Science, Computer Engineering, Information Technology or a related field and 2 years in any job title involving full stack development experience. Prior experience must include 2 years in the following: Designing, implementing, deploying, and supporting web-based applications and web services; Working in Object Oriented design and development; Programming with Java, J2EE, Multi-threading, MVC Framework, EJB, Spring, Sprint Boot, Hibernate, and Design Patterns; Developing REST and SOAP services; Working with front-end UI technologies including Angular, JSP, JSF, HTML, and JavaScript; Database experience with Oracle, SQL Queries, PL/SQL, and Stored Procedures; and Working with Linux and Unix Commands to analyze and review logs on Linux and Unix Servers.
TRAVEL: None
TO APPLY: Select "Apply" on this page and follow the prompts to attach resume and submit.
JOB CODE: KG568
#P3M
It is unlawful to discriminate against a prospective employee due to the individual's status as a veteran.
Our commitment to Equal Opportunity:
Fiserv is proud to be an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, national origin, gender, gender identity, sexual orientation, age, disability, protected veteran status, or any other category protected by law.
If you have a disability and require a reasonable accommodation in completing a job application or otherwise participating in the overall hiring process, please contact AskHR.US@fiserv.com. Please note our AskHR representatives do not have visibility to your application status. Current associates who require a workplace accommodation should refer to Fiserv's Disability Accommodation Policy for additional information.
Note to agencies:
Fiserv does not accept resume submissions from agencies outside of existing agreements. Please do not send resumes to Fiserv associates. Fiserv is not responsible for any fees associated with unsolicited resume submissions.
Warning about fake job posts:
Please be aware of fraudulent job postings that are not affiliated with Fiserv. Fraudulent job postings may be used by cyber criminals to target your personally identifiable information and/or to steal money or financial information. Any communications from a Fiserv representative will come from a legitimate Fiserv email address.

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