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Senior Full Stack Engineer

Senior Full Stack Engineer

locationMerrimack, NH, USA
remoteHybrid
PublishedPublished: 4/9/2026
IT / Computer Engineering
Full Time
Fidelity TalentSource is your destination for discovering your next temporary role at Fidelity Investments. We are currently sourcing for a Senior Full Stack Engineer to work in Merrimack, NH, Boston, MA, or Westlake, TX!

Are you interested in serving the needs of millions of customers by building outstanding products and digital experiences that help strengthen the financial well-being of our customers?

We’re actively seeking a passionate, humble individual who brings deep technical expertise in web, cloud architecture, engineering, with an eye towards building omni-channel experience platforms and has a passion for business innovation.

The Team

Fidelity Brokerage Alternatives Technology team influences the direction of Alternative Investments and Fidelity Crypto solutions for retail customers. We are a comprehensive software engineering practice, owning the build of core product and platform capabilities, the championing of new technologies and promoting collaboration and open communication to facilitate better decision-making at all levels.

The Purpose of Your Role

Our teams work towards Fidelity’s digital presence. As a software engineer, you will help us build the omni channel user experiences and the underlying platforms needed to support our digital presence. You’ll work on building entire features, taking these from concept to deployment, as part of our autonomous, cross functional teams. You'll have the opportunity to provide ideas to improve our products as well as develop your skills, learn new technologies and languages, and continue to learn. We're looking for highly motivated individuals who work well in an, iterative, and fast-paced environment.

The Expertise and Skills You Bring

  • 6+ years of professional experience developing web apps using Angular 12+, RxJS, Redux/NgRx and TypeScript in an agile environment.
  • Experience or willingness to learn Android, iOS and mobile technologies.
  • Knowledge of web landscape, architectures (micro-frontend, BFF, Module Federation), trends and emerging technologies used in creating performant and resilient websites
  • Your advanced Git skills, branching strategies and CI/CD practices.
  • Your knowledge of HTTP/S based APIs, REST, Networking and how the internet works.
  • Expertise with test automation tools and frameworks e.g. Cypress, Playwright, Jest and Storybook.
  • Critical problem-solving skills, Passionate, opinionated about writing clean, testable, readable, and easily maintainable code with a test-first development approach
  • Familiarity with developing features for our web experiences using Angular and Microservices in NodeJS/NestJS/REST.
  • Experience with Nx workspaces is a plus
  • Experience in internet security: OAuth, Open ID connect and knowledge of standard methodologies
  • Strong understanding of AWS ecosystem (EC2, Lambda, Serverless computing, DynamoDB)
  • Understanding containerization, Docker, and orchestration will be a plus.
  • End-to-end architecture experience with focus on customer experience, ease of use, reusable core & common components development, leverage proven architecture pattens, standards, accessibility guidelines, security, A/B testing, personalization, analytics and measurements

How Your Work Impacts the Organization

With you as a core member of the technology leadership team, we will together continue to drive and enhance a strong engineering culture that is built on a core foundation that revolves around passion for excellence, community and accountability.

We believe that diversity in background and experience will cultivate an inclusive and engaging work environment for our employees. This ultimately enables us to deliver a better product for our customers. It is our genuine belief that delivering the best possible customer experience requires an artful blend of human ingenuity and technology. While we value smart technologists, we are fanatics about our culture that promotes aligned autonomy and ownership. People who are phenomenal cultural fits demonstrate curiosity to learn, are unafraid to break things, step up and take the lead, take ownership of their projects, and thrive by sharing knowledge.

Please see the below pay rate range for the work location of Massachusetts only: $76.07-$116.07 per hour.
Placement in the range will vary based on job responsibilities and scope, geographic location, candidate’s relevant experience, and other factors.

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.

Company Overview

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.

Fidelity TalentSource, is the in-house temporary staffing provider for Fidelity Investments. Unlike traditional staffing agencies, we are an internal business unit within Fidelity’s Talent Acquisition team, dedicated to recruiting talent from various backgrounds for roles in Fidelity’s regional and investor center locations. Our mission is to help you experience Fidelity’s diverse and inclusive workplace while expanding your skill set and professional network, with the ultimate goal of conversion to full-time employment as part of Fidelity’s long-term strategy.

For information about working at Fidelity TalentSource, visit FTSJobs.com.

Fidelity TalentSource will reasonably accommodate applicants with disabilities who need adjustments in order to complete the application or interview process. Please email us at HR@ftsjobs.com if you would like to request an accommodation.