Senior Java Software Engineer

EXSIF Worldwide, Inc.; Chicago, Northern (IL, KY); Hybrid; USD 130,000 - 140,000; Full time

Job summary

EXSIF is seeking a Senior Java Software Engineer to design, build, modernize, and support enterprise applications. This hybrid Chicago role requires commuting to the HQ at least one day per week and collaboration with IT, business stakeholders, and external partners. Compensation will reflect experience and location.

The successful candidate will work on Java/Jakarta EE tech, APIs, data pipelines, and secure coding practices, contributing to reliable software delivery in a fast-paced environment.

Qualifications

• Strong proficiency in Java/Jakarta EE software development and object-oriented design.
• Proficient with JavaScript and SQL for full-stack or backend work.
• Solid understanding of APIs, data pipelines, and secure coding practices.

Responsibilities

• Design, develop, test, deploy, and support Java-based enterprise applications.
• Contribute to reliable software delivery using CI/CD, testing, and automation.
• Troubleshoot and improve production applications, refactor legacy systems.

Skills

Java development

JavaScript

SQL

Agile / Scrum

Software design

Education

Bachelor's degree in computer science or related field

Tools

Open Liberty

Azure

.NET (advantage)

Job description

Senior Java Software Engineer

EXSIF As a part of the global industrial organization Marmon Holdings—which is backed by Berkshire Hathaway—you’ll be doing things that matter, leading at every level, and winning a better way. We’re committed to making a positive impact on the world, providing you with diverse learning and working opportunities, and fostering a culture where everyone’s empowered to be their best. LOCATION REQUIREMENT - MUST RESIDE WITHIN COMMUTING DISTANCE OF OUR CHICAGO HQ OFFICE FOR A HYBRID (MINIMUM 1 DAY A WEEK) IN OFFICE ENVIRONMENT. Must be eligible to work in Chicago, IL, without visa sponsorship Company EXSIF (exsif.com) is the world’s largest and most trusted tank leasing company. EXSIF provides reliable and sustainable equipment combined with best-in-class services that enable the global movement of products essential to everyday life. EXSIF is a global organization with more than 90 team members in 10 countries. EXSIF is a wholly owned subsidiary of Marmon Holdings, Inc., a Berkshire Hathaway company. Marmon Holdings, Inc. may be the biggest company you’ve never heard of. It is comprised of 11 groups and more than 100 autonomous businesses with a total annual revenue of $13 billion. Marmon’s 30,000-plus team members serve diverse industries and markets worldwide. As a member of the Marmon team, you have access to career opportunities across the entire organization. EXSIF’s experienced leadership team, growing end markets, and the financial backing of Berkshire Hathaway have positioned EXSIF for significant growth.

Job Summary

Job Summary The Senior Java Software Engineer is responsible for designing, building, modernizing, and supporting reliable enterprise applications and integrations. This role is ideal for an experienced developer with strong Java skills, sound engineering judgment, and the ability to collaborate with business stakeholders, technical team members, and external partners to deliver practical, maintainable solutions. The Senior Java Software Engineer will report to the IT Delivery Manager and work closely with IT, business stakeholders, and external partners to deliver and support enterprise application solutions. This role is hybrid Chicago (working one day per week from the office). Compensation and benefits will be discussed during the recruiting process and will be based on experience, qualifications, and location.

Key Responsibilities

Software Delivery & Operations

• Design, develop, test, deploy, and support Java-based enterprise applications and related integrations.
• Contribute to reliable software delivery through effective use of version control, CI/CD pipelines, automated testing, and deployment practices.
• Support production applications by troubleshooting issues, improving stability, and participating in operational support as needed.
• Evaluate, refactor, and modernize legacy applications to improve performance, maintainability, scalability, and alignment with current technology standards.

Technical & Business Expertise

• Develop a strong understanding of application functionality, data models, integrations, and supporting business processes.
• Translate business and technical requirements into well-designed, maintainable software solutions.
• Troubleshoot complex technical issues across applications, APIs, integrations, databases, and data pipelines.

Process & Continuous Improvement

• Apply and promote engineering best practices in code quality, testing, release management, documentation, and monitoring.
• Identify opportunities to automate repetitive tasks and improve application reliability, maintainability, and developer productivity.
• Collaborate with stakeholders and team members to improve system usability, functionality, and alignment with business needs.

Collaboration & Communication

• Collaborate with business stakeholders, analysts, architects, administrators, other developers, and external vendors to clarify requirements and deliver effective solutions.
• Communicate technical concepts, progress, risks, and dependencies clearly to both technical and non-technical audiences.
• Provide technical guidance and support to teammates through code reviews, design discussions, troubleshooting, mentoring, and knowledge sharing.

Required Qualifications

• Strong proficiency in Java/Jakarta EE software development, including object-oriented design, application architecture, debugging, and maintainable coding practices.
• Proficient with both JavaScript and SQL for front-end, back-end, or full-stack development, including working knowledge of relational databases.
• Solid understanding of object-oriented design, application architecture, APIs, databases, integration patterns, data pipelines, and secure coding practices.
• Experience working in a team-based software delivery environment using source control, testing, deployment practices, and continuous integration/continuous delivery tools.
• Strong understanding of application security, authentication, authorization, and secure coding practices.
• Ability to analyze complex problems and deliver practical, maintainable solutions.
• Excellent analytical and problem-solving skills with the ability to quickly understand complex systems, data models, and technical dependencies.
• Strong communication skills; able to present technical concepts in business-friendly terms.
• Experience working in Agile delivery environments utilizing Scrum or similar methodologies and collaborating with cross-functional teams.

Preferred Qualifications

• Experience with Microsoft Azure or other cloud platforms.
• Experience with Open Liberty or similar Java application server platforms.
• Experience integrating with Microsoft Dynamics 365, finance, CRM, or operations-related systems is a plus.
• Experience with .NET is a plus, or willingness to learn and contribute to .NET-based applications as needed.
• Demonstrated ability to leverage AI-assisted development tools while maintaining strong software engineering discipline, code quality standards, and security practices.
• Experience 5+ years of experience in software development, application engineering, and/or systems integration with a primary focus on Java development.
• Education Bachelor’s degree in computer science, information systems, software engineering, or a related field is preferred.

Pay Range: $ $130,000.-$140,000.

Following receipt of a conditional offer of employment, candidates will be required to complete additional job-related screening processes as permitted or required by applicable law.

We are an equal opportunity employer, and all applicants will be considered for employment without attention to their membership in any protected class.

If you require any reasonable accommodation to complete your application or any part of the recruiting process, please email your request to [e-mail], and please be sure to include the title and the location of the position for which you are applying.

Welcome to the biggest small business you’ll ever find. Part of Berkshire Hathaway, Marmon is a global industrial organization made of 11 industry groups with 30K employees and $12 billion in annual revenue. As leaders in their respective industries, our 120+ companies thrive on an independent mindset and entrepreneurial spirit. At the same time, they benefit from being part of our industry groups—where they’re able to tap into the expertise and insights of other Marmon companies. While we’re all unique, we all share a common commitment to doing things that matter, leading at every level, and winning a better way. When you work at Marmon, you're advancing our everyday world and beyond. Our engineering solutions help millions around the world stay connected, healthy, and safe. Wherever you're at in your career, our people and resources will help you go further. As you grow your skills, you can also move up and around our 120+ companies. Work at a place you can stand behind. We show up to win every day, uphold the highest ethical standards, and always look to put each other in the best position to win.