Senior Frontend Engineer

Polymodels Hub; Greater London; Hybrid; GBP 50,000 - 70,000; Full time

Job summary

A leading technology firm in pharmaceutical R&D is seeking a Senior Frontend Engineer to enhance their UI/UX and streamline front-end architecture. You will own the front-end development process, apply modern design principles, and continuously improve the existing codebase. The role offers flexible hybrid work, generous leave, and equity incentives as part of a fast-growing team dedicated to transforming pharmaceutical R&D through innovative technologies.

Benefits

Flexible hybrid working

26 days of annual leave plus flexible bank holidays

Access to office amenities

Competitive pension contributions

Equity incentives

Qualifications

• Proven experience in frontend development, especially with React and TypeScript.
• Ability to balance user-centric design with technical feasibility.
• Experience collaborating in a cross-functional environment.

Responsibilities

• Refine and scale our front-end codebase to support efficient development practices.
• Champion modern design principles and optimize user journeys.
• Evaluate and adopt new tools to improve performance and maintainability.

Skills

Strong analytical skills

Attention to detail

Excellent communication skills

Proactive mindset

Tools

Next.js

Django

FastAPI

Job description

We are seeking a Senior Frontend Engineer (UI / UX) with an extensive background in SaaS product design and development. You will take ownership of our front‑end architecture, streamline existing code to improve development velocity, and lead technical enhancements that drive best‑in‑class user experiences.

About PolyModels Hub

PolyModels Hub is transforming pharmaceutical R&D through cutting‑edge modeling, simulations, and data integration. Our platform, ModelFlow, empowers scientists to accelerate development timelines, optimize processes, and make smarter decisions—combining mechanistic models, AI, and workflow automation into one unified environment.

We are growing fast and looking for passionate individuals to help us deliver lasting impact to our customers and scale our platform globally.

Key Responsibilities :

• Front‑End Architecture : Refine and scale our front‑end codebase (React / TypeScript) to support efficient and consistent development practices.
• UI / UX : Champion modern design principles and refine user journeys to optimize our applications for clarity and ease of use.
• Continuous Improvement : Evaluate and adopt new tools, libraries, and frameworks to improve performance, maintainability, and developer experience.

Requirements

• Strong analytical skills, attention to detail, and a proactive, collaborative mindset.
• Excellent communication skills for cross‑functional collaboration.
• Ability to balance user‑centric design with technical feasibility.

Tech Stack

• Tools & Frameworks : Next.js, Django, FastAPI

Benefits

• Flexible hybrid working – split your time between home and our London office.
• Generous time off – 26 days of annual leave plus flexible bank holidays.
• Modern workspace perks – access to office amenities, including collaborative spaces and refreshments.
• Pension contributions – competitive employer contributions to help you plan for the future.
• Equity incentives – participation in our Employee Incentive Plan, so you can grow with the company.

Why Join PolyModels Hub?