Senior Frontend Engineer

LOCATION:

Hybrid: Boston, USA

About the role

Proxet is seeking a Senior Frontend Engineer to own the frontend architecture and build data-driven user interfaces that support mission-critical defense applications. This is a hands-on role requiring strong technical depth, builder mindset, leadership experience, excellent communication skills, and comfort working directly with stakeholders and client engineering teams.

About the project

Our client is a U.S.-based software company specializing in defense analytics. Its flagship platform leverages artificial intelligence and integrated data to modernize and accelerate the defense acquisition process. The company serves as a strategic technology partner to the U.S. government in support of national security initiatives.

Location‍

Hybrid - Boston, US.

Requires US citizenship and hybrid work from the Newton office 3 days per week, with occasional travel to Pittsburgh.

Who are we looking for?

Skills & Experience

• Must be a US citizen and reside in the US
• B.S./M.S. in Computer Science or a related technical field.
• 8+ years of full-stack software engineering experience (3+ years in a senior frontend React role)
• 3+ years of recent React experience, or 5+ years of total React experience.
• Proven ability to define and implement frontend strategy, including state management patterns, component architecture, performance optimization, and scalable application structure
• Expert-level proficiency in TypeScript and the React ecosystem (Hooks and advanced rendering patterns)
• Deep fluency in leveraging AI tools (e.g., Claude Code) to accelerate development cycles and automate boilerplate
• Ability to clearly explain technical trade-offs and their impact to cross-functional partners and leadership
• Strong communication and presentation skills

Responsibilities

• Architect and implement high-performance web applications.
• Engineer a modular, accessible component library to ensure UI consistency and high reusability across platforms
• Interface with Product, Design, and Backend stakeholders to define API contracts, data modeling, and seamless integration patterns.
• Facilitate high-impact design reviews to drive consensus on architectural shifts and mitigate technical debt
• Standardize AI-augmented development workflows (e.g., Claude Code) to maximize team velocity and code quality

What we offer

WORK:

• Flexible working hours;
• Collaborative, friendly team environment;
• Remote/Hybrid work;

LIFE:

• Company social events;
• Annual corporate parties;

HEALTH:

• Comprehensive medical insurance;

EDUCATION:

• Allowances for professional education;
• English language courses with native speakers;
• Internal knowledge-sharing sessions.

About Proxet

Proxet is a professional software development firm trusted by clients from around the world. With our expertise in AI and machine learning, we help businesses reimagine their possibilities and transform ideas into tangible digital solutions. By providing core services with an emphasis on data practices, we shape the future, one step at a time.