Senior Frontend Engineer - REACT

great-gray-group; Boston (MA); Hybrid; USD 140,000 - 170,000; Full time

Job summary

Great Gray Group in Boston, MA is seeking a Senior Frontend Engineer to advance our cloud‑based retirement software. You will collaborate in an agile team, shape UI/UX, and drive best practices in frontend development across Angular and React.

You will own frontend architecture, mentor teammates, and deliver maintainable, scalable web applications. This role requires 5+ years in frontend engineering, strong API integration, and a proactive, collaborative mindset in a fast paced environment.

Qualifications

• 5+ years of frontend development with Angular/React/Next.js.
• Experience building responsive, accessible UIs and integrating with APIs.
• Strong understanding of frontend architecture and code quality practices.

Responsibilities

• Develop and enhance scalable, maintainable frontend solutions using Angular and React.
• Collaborate with cross-functional teams to translate requirements into high-quality web apps.
• Lead code reviews, enforce best practices for security and performance.
• Monitor and optimize front-end performance and reliability.
• Mentor teammates and contribute to technical discussions and design decisions.

Skills

Angular

React

Next.js

Education

Bachelor's Degree in Computer Science or related field

Tools

C# .NET

MSSQL

Python

Postgres

Databricks

Azure Cloud

Docker

GitHub

Cypress

Claude Code

SonarQube

Job description

Why Great Gray?

At Great Gray Group, we strive to set the bar for the retirement services industry. Our goal is to deliver advanced retirement solutions that combine our core fiduciary services with robust investment options, innovative technology, and dedicated client service. We focus on making choices clearer, transitions smoother, and the client experience more delightful. Complacency isn't in our vocabulary. Every day, we look for opportunities to better serve our clients, be an excellent business partner, and earn the trust of those who rely on us.

The Role

Great Gray is looking to add a Senior Frontend Engineer on our Technology team. The engineer we seek comes with strong experience with frontend languages and frameworks (ex. Javascript, Angular, React, Vue). You will be working collaboratively within an agile team, contributing to architectural decisions, and championing best practices in software development.

If you believe in DevOps principles, value continuous delivery, and understand that quality is a shared responsibility you will do well here. Our team members are expected to take full ownership of our products as well as embrace efficiency and continuous improvement. We are not looking for a few rock stars, but rather very strong team players that wish to collaborate to create fantastic software.

This is an exciting opportunity to grow alongside Great Gray as we expand, integrate, and build cutting-edge solutions for the retirement services industry. Your ability to mentor, solve complex technical challenges, and drive results will multiply the effectiveness of your team and shape the future of our technology

Location

This position will work from our Boston, MA office. Great Gray currently supports a hybrid work model with 4 days onsite, and 1 day remote.

Visa sponsorship or transfer of an existing visa is not available for this position. Applicants must be authorized to work directly for any employer in the United States without visa sponsorship or transfer.

Responsibilities

• Develop and enhance scalable, maintainable, cost-effective cloud solutions using javascript, using Angular and React frameworks.
• Collaborate closely with cross-functional teams to translate business requirements into efficient, maintainable, scalable, and high-quality solutions.
• Drive technical excellence through thorough code reviews, identifying opportunities for optimization, and enforcing best practices in code quality, security, and performance.
• Proactively monitor and maintain business-critical platforms and services, ensuring high availability and seamless user experiences.
• Diagnose and resolve complex technical issues, minimizing downtime and continuously improving system efficiency.
• Contribute to innovation by exploring emerging technologies, design patterns, and architectural improvements to keep our solutions cutting-edge.
• A problem-solving mindset and the ability to contribute to technical discussions.
• Strong collaboration skills, fostering an environment of shared learning and innovation.
• A passion for best practices, design patterns, and driving excellence in development.
• The ability to balance multiple priorities while maintaining high-quality outcomes.
• Complete other related duties as assigned

Required Qualifications & Experience

• Exhibits our Great Gray attributes: Growth Mindset, Disciplined Curiosity, Grit, Results Ownership, Collaboration.
• Bachelor's Degree in Computer Science or a related field.
• 5+ years of software engineering or development experience with front-end technologies like Angular, React, or Next.js
• Strong experience building responsive, user friendly frontends with excellent user experiences.
• Strong experience integrating web-application frontends with APIs backed by microservices and event driven architectures.

Preferred Qualifications & Experience

• Ability to articulate and implement best practices, design patterns, and software architecture.
• A problem-solving mindset and the ability to lead technical discussions.
• Ability to thrive in a fast-paced, dynamic environment and manage multiple priorities effectively.
• A growth mindset with an eagerness to learn new technologies and adapt to evolving challenges.
• Comfortable navigating ambiguity.
• Entrepreneurial mindset to bring best practice ideas to the team.

Tech Stack

• Frontend: Angular, React
• Backend: C# .NET
• Data Layer: MSSQL, Python, Postgres, Databricks
• Infrastructure: Azure cloud
• Tooling: Cypress, Docker, GitHub, Claude Code, SonarQube

Base Pay Range*

$140,000-$170,000

*This base pay range is subject to change and may be modified in the future.

The pay range displayed above is the base pay compensation range that Great Gray expects to pay for this position at the time of this posting. Individual compensation within this range depends on multiple factors, including, but not limited to, candidate's prior