Skip to main contentA logo with &quat;the muse&quat; in dark blue text.

Principal Full Stack Engineer

AT Fidelity Investments
Fidelity Investments

Principal Full Stack Engineer

Westlake, TX

Job Description:

Position Description:

Designs and develops web services using Java, Python and Go. Develops and builds Application Programming Interfaces (APIs) by using frameworks - Dropwizard and Jety. Deploys application builds according to Continuous Integration/Continuous Deployment (CI/CD) methodologies using Stash and Jenkins Core. Supports software capabilities within cloud environments, Amazon Web Services (AWS), and with its related services - Lambda, AWS DynamoDB, and AWS SQS. Automates pipelines using Agile environment tools - Jira. Secures, scalable and innovative cloud-native solutions by leveraging software tools such as CloudFormation and Terraform.

Primary Responsibilities:

  • Participates in architecture design teams.

Want more jobs like this?

Get jobs in Westlake, TX delivered to your inbox every week.

By signing up, you agree to our Terms of Service & Privacy Policy.


  • Defines and implements application level architecture.


  • Develops applications on complex projects, components, and subsystems for the division.


  • Recommends development testing tools and methodologies and reviews and validates test plans.


  • Responsible for QA readiness of software deliverables.


  • Develops comprehensive documentation for multiple applications or subsystems.


  • Establishes full project life cycle plans for complex projects across multiple platforms.


  • Responsible for meeting project goals on-time and on-budget.


  • Advises on risk assessment and risk management strategies for projects.


  • Plans and coordinates project schedules and assignments for multiple projects.


  • Acts as a primary liaison for business units to resolve various project/technology issues.


  • Provides technology solutions to daily issues and technical evaluation estimates on technology initiatives.


  • Advises senior management on technical strategy.


  • Mentors junior team members.


  • Performs independent and complex technical and functional analysis for multiple projects supporting several divisional initiatives.


  • Develops original and creative technical solutions to on-going development efforts.

Education and Experience:

Bachelor's degree (or foreign education equivalent) in Computer Science, Engineering, Information Technology, Information Systems, Mathematics, Physics, or a closely related field and five (5) years of experience as a Principal Full Stack Engineer (or closely related occupation) project managing the design, development, and delivery of customer-facing online transaction processing financial applications.

Or, alternatively, Master's degree (or foreign education equivalent) in Computer Science, Engineering, Information Technology, Information Systems, Mathematics, Physics, or a closely related field and three (3) years of experience as a Principal Full Stack Engineer (or closely related occupation) project managing the design, development, and delivery of customer-facing online transaction processing financial applications.

Skills and Knowledge:

Candidate must also possess:

  • Demonstrated Expertise ("DE") performing Object-Oriented design and Java Web application development, using Java/J2EE, Spring Boot, Spring Security, micro-services, RESTful Web Services, or SOAP; and developing chatbots with RASA NLU (Natural Language Understanding) using Python.


  • DE designing and developing enterprise Cloud-based security solutions using Amazon Cloud Computing Services - EKS, EC2, and IAM, S3, Lambda, RDS, or Elasticache services - and improving security of these solutions using Web security technologies (OAuth Encrypted Key Management, Applications Secrets Management, and SAML), AWS KMS, AWS WAF or AWS Crypto to improve the security.


  • DE developing and maintaining responsive UI applications, using JavaScript frameworks, Angular, Node.js, Express, JQuery, AJAX, or Bootstrap CSS; performing unit and functional testing for API and Selenium IDE/Jest User Interfaces (UIs), using Junit, Mockito, or Powermockito; and developing virtual assets for functional and scalability testing, using Wiremocks.


  • DE integrating build processes according to Continuous Integration/Continuous Deployment (CI/CD), using Jenkins and GitLab as a CI platform and Urban Deploy as a CD platform; and deploying REST microservice applications in AWS using Terraform and Cloud Formation Template (CFT).

#PE1M2

Certifications:

Company Overview

Fidelity Investments is a privately held company with a mission to strengthen the financial well-being of our clients. We help people invest and plan for their future. We assist companies and non-profit organizations in delivering benefits to their employees. And we provide institutions and independent advisors with investment and technology solutions to help invest their own clients' money.

Join Us

At Fidelity, you'll find endless opportunities to build a meaningful career that positively impacts peoples' lives, including yours. You can take advantage of flexible benefits that support you through every stage of your career, empowering you to thrive at work and at home. Honored with a Glassdoor Employees' Choice Award, we have been recognized by our employees as a top 10 Best Place to Work in 2024. And you don't need a finance background to succeed at Fidelity-we offer a range of opportunities for learning so you can build the career you've always imagined.

Fidelity's hybrid working model blends the best of both onsite and offsite work experiences. Working onsite is important for our business strategy and our culture. We also value the benefits that working offsite offers associates. Most hybrid roles require associates to work onsite all business days of every other week in a Fidelity office.

At Fidelity, we value honesty, integrity, and the safety of our associates and customers within a heavily regulated industry. Certain roles may require candidates to go through a preliminary credit check during the screening process. Candidates who are presented with a Fidelity offer will need to go through a background investigation, detailed in this document, and may be asked to provide additional documentation as requested. This investigation includes but is not limited to a criminal, civil litigations and regulatory review, employment, education, and credit review (role dependent). These investigations will account for 7 years or more of history, depending on the role. Where permitted by federal or state law, Fidelity will also conduct a pre-employment drug screen, which will review for the following substances: Amphetamines, THC (marijuana), cocaine, opiates, phencyclidine.

We invite you to Find Your Fidelity at fidelitycareers.com.

Fidelity Investments is an equal opportunity employer. We believe that the most effective way to attract, develop and retain a diverse workforce is to build an enduring culture of inclusion and belonging.

Fidelity will reasonably accommodate applicants with disabilities who need adjustments to participate in the application or interview process. To initiate a request for an accommodation, contact the HR Accommodation Team by sending an email to accommodations@fmr.com.

Client-provided location(s): Westlake, TX, USA
Job ID: Fidelity-2101677
Employment Type: Other

Perks and Benefits

  • Health and Wellness

    • Health Insurance
    • Dental Insurance
    • Vision Insurance
    • Life Insurance
    • Short-Term Disability
    • Long-Term Disability
    • FSA
    • HSA
    • HSA With Employer Contribution
    • Fitness Subsidies
    • On-Site Gym
    • Pet Insurance
    • Mental Health Benefits
    • Virtual Fitness Classes
  • Parental Benefits

    • Birth Parent or Maternity Leave
    • Non-Birth Parent or Paternity Leave
    • Fertility Benefits
    • Adoption Assistance Program
    • Family Support Resources
    • Adoption Leave
  • Work Flexibility

    • Flexible Work Hours
    • Remote Work Opportunities
    • Hybrid Work Opportunities
  • Office Life and Perks

    • Commuter Benefits Program
    • Casual Dress
    • Snacks
    • Company Outings
    • On-Site Cafeteria
    • Holiday Events
  • Vacation and Time Off

    • Paid Vacation
    • Paid Holidays
    • Personal/Sick Days
    • Leave of Absence
  • Financial and Retirement

    • 401(K)
    • 401(K) With Company Matching
    • Company Equity
    • Performance Bonus
    • Relocation Assistance
    • Financial Counseling
    • Profit Sharing
  • Professional Development

    • Tuition Reimbursement
    • Promote From Within
    • Mentor Program
    • Shadowing Opportunities
    • Access to Online Courses
    • Lunch and Learns
    • Internship Program
    • Work Visa Sponsorship
    • Leadership Training Program
    • Associate or Rotational Training Program

Company Videos

Hear directly from employees about what it is like to work at Fidelity Investments.