Full Stack Engineer

DeWinter Group; Concord (NH); Hybrid; USD 96,432 - 165,312; Full time

Job summary

A leading investment management firm is searching for a Full-Stack Engineer to join their Portfolio Tools Engineering team. This role focuses on front-end development with TypeScript and React and back-end engineering using Python. Candidates should have a solid background in full-stack development and the ability to work autonomously. This position offers hybrid work options in Concord, NH, and emphasizes building scalable tools for real-time investment decision-making.

Qualifications

• 4-6 years of full-stack development experience on production systems.
• Deep expertise in Front-End Development: TypeScript, HTML/CSS, and React.
• Strong backend engineering skills using Python, including API design.

Responsibilities

• Build, test, and enhance tools for portfolio positions and returns.
• Design and implement backend systems for high-performance data processing.
• Implement cloud-ready and extensible solutions.

Skills

Front-End Development

Back-End Engineering

Python

TypeScript

React

HTML/CSS

Communication Skills

Tools

Material UI (MUI)

Ray

Pandas

Polars

Job description

Title: Full-Stack Engineer

Job Type: Contract

Contract Length: Through December 31, 2026

Pay Range:$70–120/hr

Start Date: ASAP

Location: Hybrid - Boston, MA (3 days a week onsite)

About the Opportunity

Our client, a leader in Systematic Investment Management, is looking for a skilled Full-Stack Engineer to join their Portfolio Tools Engineering team for an engagement through December 31, 2026. This is a high-impact, execution-heavy project focused on owning and evolving one of the firm’s flagship internal software products—a market-leading portfolio management and decomposition platform. This is a high-impact role that requires a self-motivated professional who wants to build fast, scalable, and maintainable tools that drive real-time investment decision-making and can hit the ground running and deliver results quickly.

Key Responsibilities & Deliverables

• Front-End Development (60% Focus): Build, test, and enhance tools that attribute drivers of portfolio positions, returns, and risk. Develop front-end components using TypeScript and React, focusing on component design, state management, and performance optimization for data-heavy views.
• Back-End Engineering (40% Focus): Design and implement backend systems using Python, Ray, and databases for scalable, high-performance data processing.
• Architecture and Deployment: Implement cloud-ready, modular, and extensible solutions and optimize software systems for performance, scalability, and cloud deployment.
• Collaboration & Optimization: Collaborate with portfolio managers, quants, and engineers to align tools with investment workflows. Optimize and unify reporting across multiple geographies and strategies, including exception-based management reports.

Required Skills & Experience

• 4-6 years of full-stack development experience, including work on production systems.
• Deep expertise in Front-End Development (60% initial focus): Strong skills in TypeScript, HTML/CSS, and React.
• Deep expertise in Python (40% focus): Strong backend engineering skills using Python, including API design and experience with databases. This isn't a learning role—you need to be a subject matter expert.
• Strong communication skills to provide clear and concise status updates to the project team.
• Ability to work as an effective team player and self-starter, willing to roll up their sleeves to help accomplish team goals in a fast-paced environment.
• Demonstrated ability to work autonomously and manage your own time effectively to meet project goals.

Preferred Experience

• Hands‑on experience with Material UI (MUI) and MUI X for building user interfaces and data visualizations.
• Experience with Ray and Pandas/Polars for distributed parallel computing.
• Some investment domain knowledge, particularly in portfolio decomposition, attribution, risk analysis, or quantitative equity strategies.