{"id":774588,"url":"https://alion.io/job/rocket-software-principal-software-engineer","title":"Principal Software Engineer","company":{"id":176188,"name":"Rocket Software","domain":"rocketsoftware.com","url":"https://alion.io/company/rocket-software","size_band":"1001-5000","is_staffing_agency":false,"is_intermediary":false,"ats_vendor":"Workday","truth_index":null},"role":"Backend","role_family":"Backend","seniority":"lead","employment_type":"full_time","work_mode":"remote","remote_scope":"stated_countries","remote_scope_basis":"board_field","remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["United Kingdom"],"countries":["GB"],"hiring_countries":["GB"],"hiring_countries_total":1,"salary":null,"salary_estimate":{"min_usd":81000,"max_usd":159000,"period":"year","method":"role_seniority_country_cell","sample_n":38},"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"C++","optional":true},{"name":"Db2","optional":true}],"status":"live","first_seen_at":"2026-09-01T00:00:00Z","employer_posted_date":"2026-09-23","last_verified_at":"2026-09-24T13:02:07Z","board_verified":true,"closed_at":null,"days_open":23,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":23},"description":"It's fun to work in a company where people truly BELIEVE in what they're doing!\nJob Description Summary:\nIt's fun to work in a company where people truly BELIEVE in what they're doing!Rocket Software is seeking an accomplished Principal Software Engineer - Change Data Capture & Data Integration to help drive the evolution of our Enterprise Data Integration portfolio.\nThis is a deeply technical, hands-on role focused on the design, implementation, and optimization of Change Data Capture (CDC) technologies across mainframe and distributed environments. The successful candidate will develop software that captures and processes transactional changes from enterprise databases, requiring expertise in database internals, transaction-log processing, systems programming, and high-volume data processing.\nThe ideal candidate thrives in complex environments, rapidly understands mature legacy systems, reverse engineers undocumented formats and behaviors, and develops highly reliable software that operates at enterprise scale. This role combines technical leadership with a strong sense of ownership and accountability for customer success.\nEssential Duties and Responsibilities:\nArchitect, design, and implement Change Data Capture and data integration technologies.\nDevelop software that reads, interprets, and processes database transaction logs.\nAnalyze database internals, transaction structures, encodings, and storage formats.\nReverse engineer undocumented or partially documented software, interfaces, and data structures.\nBuild, compile, debug, and test software across both mainframe and distributed environments.\nDiagnose complex performance, reliability, compatibility, and data-integrity issues.\nDrive technical direction for CDC-related capabilities and engineering standards.\nMentor engineers and share expertise in systems programming, database technologies, and software architecture.\nCollaborate with Product Management, Support, and Customer Success teams to solve complex customer challenges.\nParticipate in the investigation and resolution of critical customer escalations involving business-critical production environments.\nDemonstrate flexibility to work outside normal business hours when required to support critical customer issues, production incidents, releases, or operational events.\nChampion innovation and adoption of modern engineering and AI-assisted development practices.\nRequired Qualifications:\nSignificant Mainframe software engineering experience.\nExperience developing enterprise-scale software involving database internals, data replication, CDC, transaction processing, or similar technologies.\nProven ability to understand and work within large, mature legacy codebases.\nExperience reverse engineering software behavior, transaction logs, binary formats, encodings, or proprietary interfaces.\nHands-on experience building, compiling, debugging, and testing software across mainframe and distributed platforms.\nStrong understanding of performance optimization, concurrency, reliability, and data integrity.\nExcellent analytical, troubleshooting, and problem-solving skills.\nStrong written and verbal communication skills.\nPreferred Qualifications:\nExpertise in one or more of the following: Db2 for z/OS, Db2 LUW, Datacom, Adabas, or IDMS.\nStrong proficiency in C, C++, or comparable systems programming languages.\nExperience with CDC, replication, recovery, log-reading, or database utility technologies.\nFamiliarity with z/OS, JCL, EBCDIC, packed decimal, and related mainframe technologies.\nExperience modernizing mature enterprise software systems.\nExperience with cloud-based or distributed architectures.\nEducation:\nBachelor’s degree in Computer Science, Engineering, IS, or related technical discipline.\nTravel Requirements:\n\nInformation Security:\nInformation security is everyone’s responsibility. A fundamental principle of information security at Rocket Software is that all individuals in the organization have a responsibility for the security and protection of company information and IT Resources over which they have control, according to their role.\nDiversity, Inclusion & Equity:\nAt Rocket we are committed to an inclusive workplace environment, where every Rocketeer can thrive by bringing their full selves to work. Being a Rocketeer means you are part of our movement to continually drive inclusivity, diversity and equity in our workforce.\n.\nRocket 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.\nAt Rocket Software, we believe AI is a critical enabler of innovation and productivity. All Rocketeers are expected to actively leverage AI-powered tools and technologies, where appropriate, to enhance efficiency, improve decision-making, and deliver greater impact in their roles. Embracing continuous learning and the responsible use of AI is an essential part of how we work.\nAs part of our commitment to a safe and trustworthy workplace, we include background and reference checks in our hiring process.\nRocket 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 . We will make a determination on your request for reasonable accommodation on a case-by-case basis.\nIf you like wild growth and working with happy, enthusiastic over-achievers, you'll enjoy your career with us!","description_format":"text","description_chars":5887,"description_truncated":false,"requirements":{"experience_years_min":null,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":{"level":"bachelor","optional":false},"security_clearance":false,"languages":[]},"benefits":["Continuous learning","Equity"],"hiring_locations":[{"name":"United Kingdom","iso":"GB","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":[],"lifecycle":[{"event":"open","at":"2026-09-11T22:30:56Z"}],"liveness":{"score":77,"band":"hot","label":"Hiring now","p_open":1,"p_active":0.854,"p_room":0.9,"age_days":23,"expected_fill_days":34,"reasons":["conf:4","velocity","win:mid"],"computed_at":"2026-09-24T05:45:00Z"},"pay":null,"html_url":"https://alion.io/job/rocket-software-principal-software-engineer","json_url":"https://alion.io/job/rocket-software-principal-software-engineer.json","meta":{"generated_at":"2026-09-24T13:50:03Z","cache_seconds":300,"methodology":"https://alion.io/methodology","terms":"https://alion.io/terms","contact":"https://alion.io/contact","api":"https://alion.io/developers"}}