Principal Developer

LSL Property Services plc; Kettering; On-site; GBP 60,000 - 80,000; Full time

Job summary

LSL Property Services plc in Kettering is seeking a Technical Lead to design, develop, and support modern software solutions. You will lead development teams, manage software lifecycle, and engage stakeholders across various projects.

The ideal candidate possesses extensive Python expertise and experience in frameworks like Django and Flask. Our work environment prioritizes collaboration, innovation, and diversity.

Qualifications

• Expert-level Python development skills.
• Strong architecture and solution design expertise.
• Extensive experience with Django, Flask and React.js.
• Strong understanding of API-first architectures.
• Experience with Docker containerisation.

Responsibilities

• Lead solution design, technical decisions, and development teams.
• Build enterprise applications using Python and its frameworks.
• Develop secure REST APIs and integration services.
• Establish coding standards and mentor developers.
• Manage containerised applications using Docker.

Skills

Python development

Django

Flask

React.js

SQL

Docker

Azure DevOps

DevSecOps

Agile Scrum

AI technologies

Job description

UK-Kettering Trading since 1989, e.surv Chartered Surveyors is the UK's number one residential surveyor and the largest provider of property risk expertise and residential surveying services. We complete more than one property inspection every 12 seconds and employ over 600 surveyors from Land’s End to John O’Groats and Northern Ireland, offering nationwide coverage combined with invaluable local knowledge.

We're part of the LSL Property Services Group PLC, which includes household names Your Move and Reeds Rains as well as the mortgage network PRIMIS. We work with lenders, intermediaries, social housing entities and estate agents in addition to private customers.

Design, develop, secure, test, deploy and support modern software solutions, APIs, portals, automation services and cloud-native applications for use across e.surv and its clients. Act as a principal technical owner providing technical leadership, delivery oversight, contractor management, work package ownership and stakeholder reporting while remaining hands‑on technically.

Responsibilities

• Lead solution design, technical decisions, and development teams.
• Build enterprise applications using Python, Django, Flask, React.js and SQL.
• Develop secure REST APIs and integration services.
• Apply advanced Python development techniques and best practices.
• Design, administer, and optimise PostgreSQL and SQL Server databases.
• Establish coding standards and mentor developers.
• Design and maintain Azure DevOps pipelines.
• Implement automated build, test, and deployment processes.
• Manage containerised applications using Docker and Azure Container Registry (ACR).
• Oversee release management, environment governance, and deployment controls.

Essential Skills

• Expert‑level Python development skills.
• Strong architecture and solution design expertise.
• Use of AI to augment the development process.
• Extensive experience with Django, Flask and React.js and SQL.
• Strong understanding of API‑first architectures.
• Proven ability in performance optimisation.
• Experience with Docker containerisation.
• Advanced DevSecOps, CI/CD and cloud‑native application knowledge.
• Experience leading Agile Scrum delivery teams.
• Excellent communication, stakeholder engagement and documentation skills.

Essentials Experience

• Significant commercial experience developing enterprise applications using Python.
• Experience with AI, machine learning or computer vision technologies.
• Proven experience designing and deploying production‑grade web applications and APIs.
• Experience implementing DevSecOps practices within CI/CD pipelines.
• Experience deploying containerised applications to cloud environments.
• Demonstrable experience with:
  • Unit testing
  • Integration testing
  • Functional testing
  • Security testing
  • Automated deployment pipelines
• Proven experience performing code reviews and maintaining coding standards.

Role Values

• Delivering what we promise, when we promise it – maintaining focus on achieving and exceeding team targets.
• Putting our customers and their needs first – delivering results consistently and responding respectfully, politely, and professionally at all times.
• Taking an honest approach to business – being clear, accountable, reliable, knowledgeable and listening, learning, and improving processes.

PRE EMPLOYMENT SCREENING – All of our employees must pass a Criminal Records Disclosure and Credit Referencing Process in order to work with our lender clients. If you are unsure, ask the team and we’ll be happy to explain the process.

e.surv is an equal opportunity and Disability Confident employer, dedicated to building a diverse and inclusive workplace. We welcome applications from people of all abilities and backgrounds, and we do not discriminate based on disability or individual needs. If you require any reasonable adjustments during the recruitment process, please let us know.