Senior Software Engineer

Posted:
1/6/2026, 8:40:03 PM

Location(s):
Westlake, Texas, United States ⋅ Texas, United States

Experience Level(s):
Senior

Field(s):
DevOps & Infrastructure ⋅ Software Engineering

Workplace Type:
On-site

Job Description:

Note: Fidelity will not provide immigration sponsorship for this position.

Senior Software Engineer

The Role

The Mainframe Application Infrastructure (MAI) team is part of the Fidelity Enterprise Technology group. The team provides common solutions for mainframe brokerage applications as well as general mainframe engineering and consultation services. The team is responsible for the common infrastructure solutions to support mainframe and distributed applications that leverage our mainframe environments in a two site, active-active environment.

The Expertise You Have

  • Education: BS/BA Degree in computer science, information technology, data engineering or mathematics preferred.

  • Experience designing, building and deploying system changes or new system builds.

  • Experience with the following: JAVA, Docker, Web development, Windows servers, Linus servers, Python, Django, Bash Scripting, Ansible, Jenkins, MySQL, PostGres

  • Knowledge in C, C++, MariaDB is a plus

The Skills You Bring

  • Basic analytical and problem-solving skills

  • You bring your curiosity and excitement; desire to collaborate with team members

  • Enjoy learning about the business behind the applications we support

  • Excellent written and verbal communication skills

This role may be hired at a grade 4 or grade 5

The Value You Deliver

  • Collaborating across a wide range of teams within and outside our own organization

  • Being an excellent teammate developing/deploying software in a fast-paced and highly flexible environment

  • Continued focus on improving test coverage, software deployment velocity and production stability

The Team

The team’s primary focus areas are:

  • Production Stability

  • Application Scalability

  • Engineering Excellence

  • Mainframe-to-Cloud, Cloud-to-Mainframe Enablement

  • Distributed interfacing to mainframe applications

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.

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.

Fidelity Investments

Website: https://www.fidelity.com/

Headquarter Location: Boston, Massachusetts, United States

Employee Count: 10001+

Year Founded: 1946

IPO Status: Private

Last Funding Type: Secondary Market

Industries: Asset Management ⋅ Finance ⋅ Financial Services ⋅ Retirement ⋅ Wealth Management