Senior Software Engineer – Enterprise Modernization & COBOL Platform

Posted 8 Days Ago
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Newbury, Berkshire, England, GBR
In-Office
Senior level
Information Technology • Software
The Role
The Senior Software Engineer will lead COBOL tooling designs, enhance performance, mentor junior engineers, and drive architectural decisions in enterprise application modernization.
Summary Generated by Built In

It's fun to work in a company where people truly BELIEVE in what they're doing!

Job Description Summary:

We are seeking a highly capable Senior Software Engineer to join our engineering organization working across our COBOL tooling, compilers, runtime environments, and Enterprise application replatforming technologies. As a senior engineer, you will take ownership of complex areas of the product, contribute to architectural decision-making, and mentor mid-level engineers while still driving hands-on technical execution.
This role sits at the heart of our mission to modernize long-established, mission‑critical enterprise applications and to deliver stable, high-performance infrastructure relied on by global enterprises.

What You’ll DoTechnical Ownership
  • Lead the design and implementation of key components across our COBOL development ecosystem and mainframe application replatforming stack.

  • Take end-to-end ownership of complex features, including decomposition, estimation, design documentation, and production-quality implementation.

  • Contribute to architectural discussions, propose improvements, and influence long-term technical direction.

Engineering Excellence
  • Write clean, high-quality, maintainable code with strong test coverage.

  • Debug and resolve challenging issues involving performance, concurrency, runtime behavior, compiler flows, or cross-platform compatibility.

  • Improve engineering efficiency by refining build pipelines, automation, test frameworks, and development tooling.

Cross-Team Collaboration
  • Partner with product management to refine requirements and align technical design with customer needs.

  • Collaborate with QA, DevOps, and release engineering to deliver predictable, high-quality releases.

  • Support escalations or complex customer scenarios by deep-diving into runtime or language-level issues as needed.

Mentorship & Leadership
  • Provide informal mentorship and technical guidance to more junior team members.

  • Help establish and uphold engineering best practices across code quality, testing, and design patterns.

  • Participate in and sometimes lead design reviews, code reviews, and technical spikes.

.

Rocket Software Inc. is committed to creating a diverse environment and is proud to be an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, gender, gender identity or expression, sexual orientation, national origin, genetics, disability, age, or veteran status. Rocket Software Inc. is also committed to compliance with all fair employment practices regarding citizenship and immigration status.

As part of our commitment to a safe and trustworthy workplace, we include background and reference checks in our hiring process.

Rocket is committed to working with and providing reasonable accommodation to individuals with physical and mental disabilities.  If you need special assistance or an accommodation while seeking employment, please call: 781-577-4321 or send an email to [email protected].  We will make a determination on your request for reasonable accommodation on a case-by-case basis.

If you like wild growth and working with happy, enthusiastic over-achievers, you'll enjoy your career with us!

Top Skills

Cobol
Compilers
Enterprise Application Replatforming Technologies
Runtime Environments
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The Company
HQ: Waltham, MA
2,825 Employees

What We Do

Rocket Software empowers organizations to create legendary impact in the world through innovation in legacy technologies. With deep expertise in IBM Z, IBM Power, and database and connectivity solutions, Rocket solutions power tens of thousands of global businesses, solving real problems and making real-world impact. With more than 70% of the world’s IT workload running on legacy platforms, Rocket helps companies and public-sector organizations innovate using the technology and data they already have, so they can always be ready for what comes next. Rocket customers include 44 of the Fortune 50, representing industries including Banking and Finance, Healthcare, Manufacturing, Transportation and Logistics, Retail and Insurance. A Bain Capital portfolio company, Rocket is headquartered in the Boston area with centers of excellence strategically located throughout North America, Europe, Asia, and Australia.

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