Senior Fullstack Engineer — Platform Architect

Outsmart Insight Ltd; Greater London; Hybrid; GBP 70,000 - 100,000; Full time

Job summary

A growing engineering company in Greater London is seeking a Senior Fullstack Software Engineer responsible for designing, building, and maintaining critical production systems. The role emphasizes ownership, systems thinking, and high-quality engineering on mature platforms. The ideal candidate will have 8-15 years of experience, strong Python skills, and comfort navigating complex legacy code. This position offers an opportunity to make architectural decisions and contribute to the company's operational growth, while working alongside senior decision-makers.

Qualifications

• 8–15 years of experience in engineering roles.
• Experience in small teams without heavy processes.
• Strong operational maturity with production systems.

Responsibilities

• Designing and maintaining backend services using Python.
• Developing well-structured RESTful APIs.
• Improving data models across relational and NoSQL databases.
• Contributing to cloud-based infrastructure and DevOps practices.

Skills

Backend development

Python

Systems thinking

RESTful APIs

Cloud infrastructure

Tools

PostgreSQL

Google Cloud

Job description

A growing engineering company in Greater London is seeking a Senior Fullstack Software Engineer responsible for designing, building, and maintaining critical production systems. The role emphasizes ownership, systems thinking, and high-quality engineering on mature platforms. The ideal candidate will have 8-15 years of experience, strong Python skills, and comfort navigating complex legacy code. This position offers an opportunity to make architectural decisions and contribute to the company's operational growth, while working alongside senior decision-makers.