Senior Java Software Engineer

About this role

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

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,

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