Senior Engineer / Product Engineer

Arcus Search; Greater London; Hybrid; GBP 90,000 - 120,000; Full time

Job summary

Arcus Search is seeking a Senior Engineer - Product Engineer (Python & TypeScript) to join a growing technology business. The role is hands-on and full-stack, shaping architecture while delivering production software.

You will collaborate with engineering, product and design teams, mentor developers, and promote engineering best practices, aiming to deliver robust, AI-assisted improvements across the platform.

Qualifications

• Production-grade web applications experience.
• Experience with modern front-end frameworks (TypeScript/React/Vue/Angular).
• Strong back-end API design and consumption.
• Experience with relational databases and data-driven apps.

Responsibilities

• Set and promote strong standards for engineering quality, testing, and design.
• Shape technical direction and own key product areas from concept to delivery.
• Collaborate with product and design to translate user needs into simple experiences.
• Improve scalability, performance, and maintainability of the platform.

Skills

Python

TypeScript

Vue3

React

Angular

APIs

Relational Databases

Software Architecture

Mentoring

AI-driven development

Job description

Working pattern: Hybrid, with regular onsite collaboration

We are looking for a Senior Engineer - Product Engineer (Python & TypeScript) to join an ambitious technology business and play a key role in developing and evolving its core product platform.

This is a hands-on senior engineering position for someone who enjoys solving complex technical problems, shaping architecture and delivering high-quality production software. You will work closely with engineering, product and design teams, while helping establish strong engineering practices and mentoring other developers. You will have good Python, Typescript & Vue3.

The Role

• Set and promote strong standards for engineering quality, testing, and technical design.
• Shape the technical direction of key areas, taking ownership from initial concept through delivery.
• Work collaboratively with product and design to translate user needs into simple, dependable experiences.
• Improve the scalability, performance, maintainability, and overall usability of the platform.
• Make thoughtful, pragmatic decisions across architecture, APIs, data structures, and third-party integrations.
• Deliver complete product capabilities across both front-end and back-end systems.
• Encourage effective use of modern AI-assisted development approaches across the engineering team.
• Support the growth of other engineers through mentoring, knowledge sharing, and contribution to wider technical strategy.

We're looking for a senior engineer who is full stack, with the technical maturity to take ownership of significant product areas while remaining hands-on.

You should have:

• A strong track record building and maintaining production web applications.
• Significant experience with a modern front-end framework such as Type Script, React, Vue or Angular.
• Strong backend development experience and the ability to design and consume robust APIs.
• Experience working with relational databases and data-driven applications.
• Strong understanding of software architecture, testing and engineering best practices.
• The confidence to make technical decisions and explain architectural trade-offs.
• Experience working closely with product and design teams.
• A pragmatic, product-focused approach to engineering.
• An interest in using AI-native development approaches to improve productivity and delivery.

Why Join?

This is an opportunity to join a growing technology organization where engineering has a direct influence on the product and customer experience.

You will have significant technical ownership, work alongside experienced product and engineering leaders, and have the opportunity to influence both the platform and the way software is built and delivered.

This is a hands-on engineering role with no people-management responsibility.