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Senior Software Engineer (Mainframe)

Senior Software Engineer (Mainframe)

locationMerrimack, NH, USA
PublishedPublished: 3/13/2026
IT / Computer Engineering
Full Time

Job Description:

Note: Fidelity will not provide immigration sponsorship for this position

SENIOR SOFTWARE ENGINEER – COBOL, JCL, DB2, VSAM – Grade 5

Seeking a Senior Software Engineer with superb technical skills to develop and maintain high volume, critical production platforms in the payment, taxation and reconciliation Platforms within the retirement services division of Workplace Investing Technology.

You will engage collaboratively with business and systems partners to deliver high quality and innovative software solutions. You are energized and enthusiastic to learn and grow to provide solid system stability to our applications. You will work closely with our financial operations partners and vendors and work on projects big and small to enhance the applications based on system requirements, product requirements, business requirements, or IRS/SEC requirements.

Join our teams working in a fast-paced environment, closely partnering with product, architecture, and other engineering teams. We offer dedicated time each month to develop new skills and investigate new technologies.

The Skills You Bring

  • 7-10 years of software development experience in business critical, enterprise-wide applications

  • Excellent mainframe skills in COBOL, CICS, DB2, VSAM, JCL, IBM Utilities, FileAID, Endevor, SQL, Debuggers, Schedulers, and IOMs

  • Ability to perform detailed analysis for maintenance and enhancement projects in the batch and online environments.

  • Design, deploy and support software releases into production environments

  • Employ your data security skills to keep our customers’ information safe

  • You are detailed oriented and execute thorough unit, functional and regression testing

  • Ability to perform hands on detailed analysis

  • Be proactive in your work in development and designing solutions

  • Identifies the root cause of problems and designs and implements technical design solutions to address them

  • Experienced in handling high severity/ critical production issues

  • Excellent documentation skills

  • Proven Experience writing COBOL/Native stored procedures is a plus (Nice to have/Willing to learn)

  • Experience in Distributed Technologies (Nice to have/Willing to learn)

The Expertise You Have

  • You bring strong interpersonal and organizational skills coupled with effective and concise written and verbal communication skills

  • Embrace flexibility and shift focus to meet the most pressing customer/client needs and the ability to work on multiple tasks depending on system or business needs

  • You bring a growth mentality to work every day as you continue to learn new technologies and skills and seek to share that knowledge with your squad members

The Value You Deliver

Your primary focus is as a member of a team partnering closely with Product Areas aligned with business priorities to engage in re-architecting, design, code, test and deploy functional capabilities with innovative solutions.

At Fidelity, we are passionate about making our financial expertise broadly accessible and effective in helping people live the lives they want! We are a privately held company that places a high degree of value in creating and nurturing a work environment that attracts the best talent and reflects our commitment to our associates. We are proud of our diverse and inclusive workplace where we respect and value our associates for their unique perspectives and experiences. For information about working at Fidelity, visit FidelityCareers.com. Fidelity Investments is an equal opportunity employer.

Fidelity will reasonably accommodate applicants with disabilities who need adjustments to complete the application or interview process. Please email us at accommodations@fmr.com or call 800-835-5099, prompt 2, option 2 if you would like to request an accommodation.

Certifications:

Category:

Information Technology

Most roles at Fidelity are Hybrid, requiring associates to work onsite every other week (all business days, M-F) in a Fidelity office. This does not apply to Remote or fully Onsite roles. Some roles may have unique onsite requirements. Please consult with your recruiter for the specific expectations for this position.

Please be advised that Fidelity’s business is governed by the provisions of the Securities Exchange Act of 1934, the Investment Advisers Act of 1940, the Investment Company Act of 1940, ERISA, numerous state laws governing securities, investment and retirement-related financial activities and the rules and regulations of numerous self-regulatory organizations, including FINRA, among others. Those laws and regulations may restrict Fidelity from hiring and/or associating with individuals with certain Criminal Histories.