Senior Full Stack Engineer - Merrimack, NH

Senior Full Stack Engineer – Merrimack, NH

Apply for the Senior Full Stack Engineer – Merrimack, NH role at Fidelity Investments

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

We're looking for product‑aware engineers who are passionate, inquisitive, and responsible individuals to help us on our mission to deliver unified experiences to our customers. As a software engineer at Fidelity, you will help us build the solutions to support and scale our capabilities, work on building entire features from concept to deployment as part of autonomous cross‑functional teams, and contribute ideas to improve our products while developing your skills, learning new technologies, and continuing to grow.

• Build solutions to support and scale our capabilities.
• Build entire features from concept to deployment as part of autonomous cross‑functional teams.
• Contribute ideas to improve our products and develop your skills.

• A passion for technology and the ability to navigate complex, rapidly changing landscapes.
• A creator, doer, and disruptor who builds rapid, shippable prototypes and learns from real‑life feedback.
• A self‑starter who challenges the status‑quo, is curious, and asks “Why” and “What if”.
• Experience with modern programming languages, frameworks, and test‑first development.
• Strong knowledge of Algorithms, Data Structures, Design Patterns, and building highly scalable systems.
• Data‑driven mindset, measuring, collecting, and using data to make decisions.
• Excellent communication skills and expertise to drive and participate in meaningful discussions.
• Experience re‑engineering and automation efforts that yield significant straight‑through processing and digital experiences.

• REST API Design & Development using Java.
• Experience in a cloud environment (AWS, Azure, Google Cloud).
• JavaScript frameworks—particularly Angular.
• Automation tools/frameworks (JUnit, Cucumber, Mocha, Selenium).
• Dev Ops, CI/CD using Jenkins, uDeploy, Cloud Formation.
• Knowledge of architecture, design patterns, and resilient systems (Hystrix, RxJava, Akka).
• Experience designing, developing, maintaining Node.js, Python applications in a fast‑paced Scrum environment.

• Imagine. Innovate. Inspire: nurture an inclusive culture, foster positive energy, recognize greatness, and support each other.
• Elevate the floor; influence the horizontal: commit to leadership at all levels.
• Tightly aligned, loosely coupled: align across the organization to achieve enterprise standards.
• Level up on craftsmanship: treat learning as a journey.
• Build the “Best” tech together: promote innovation driven by purpose and autonomy.

Mid‑Senior level

Full‑time

Engineering and Information Technology

This role is governed by the Securities Exchange Act of 1934, the Investment Advisers Act of 1940, the Investment Company Act of 1940, ERISA, and other applicable laws and regulations. Certain restrictions may apply to individuals with criminal histories.