Senior Software Engineer – Systems Improvement & Scale in Enfield
Senior Software Engineer – Systems Improvement & Scale

Senior Software Engineer – Systems Improvement & Scale in Enfield

Enfield Full-Time 34000 - 51000 £ / year (est.) No home office possible
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At a Glance

  • Tasks: Improve and stabilise live systems while ensuring smooth operations.
  • Company: Fast-growing car supermarket with a focus on innovation.
  • Benefits: Competitive salary, 28 days leave, company events, and employee discounts.
  • Why this job: Make a real impact on critical systems in a dynamic environment.
  • Qualifications: 5+ years in software development with full-stack JavaScript/TypeScript experience.
  • Other info: Opportunity for contract engagement leading to permanent hire.

The predicted salary is between 34000 - 51000 £ per year.

We’re hiring a Senior Software Engineer – Systems Improvement & Scale.

Company: Car Planet

Location: Enfield

Full-Time (Open to initial contract trial)

Car Planet is a fast-growing car supermarket and automotive retail business building and running our own in-house platforms – including Autogrid (our core Dealer Management System), plus supporting systems like Audiofy (call intelligence) and RoutePortal (logistics & routing).

We’re looking for a senior, pragmatic software engineer to inspect, stabilise, and improve live, revenue-critical systems as the business scales. You’ll work hands-on with existing production systems to improve performance, reliability, and maintainability – without disrupting day-to-day operations.

What You’ll Be Doing

  • Take ownership of an existing production codebase
  • Identify technical debt, performance bottlenecks, and architectural risks
  • Improve system stability, scalability, and maintainability incrementally
  • Safely refactor critical areas without disrupting live operations
  • Work across multiple internal systems:
  • Primary ownership: Autogrid
  • Secondary oversight: Audiofy & RoutePortal
  • Review code and raise engineering standards
  • Partner closely with the CEO, product, and operations teams
  • Turn business problems into practical technical solutions
  • What We’re Looking For

    Essential

    • 5+ years professional software development experience
    • Proven experience working on live production systems
    • Full-stack JavaScript / TypeScript (Next.js, Node, APIs, databases)
    • Python experience (scripting, services, tooling, data processing)
    • Strong refactoring and system-improvement skills
    • Comfortable in fast-moving, imperfect environments
    • Able to work autonomously with strong judgement on priorities & risk

    Highly Desirable

    • C# / .NET experience
    • Startup or scale-up background
    • Technical leadership experience
    • Experience across multiple internal products

    The Package

    Salary: £40,000 – £60,000 (DOE)

    Open to initial contract engagement before permanent hire

    Benefits:

    • 28 days annual leave (incl. Bank Holidays)
    • Company events
    • Employee discount

    Working Hours: Monday – Friday | 09:00 – 18:00

    On-site in Enfield

    Interested or know someone who fits this well? Send me a message or apply directly – we’d love to talk.

    Senior Software Engineer – Systems Improvement & Scale in Enfield employer: Car Planet

    Car Planet is an exceptional employer, offering a dynamic work environment in Enfield where innovation meets collaboration. With a strong focus on employee growth, we provide opportunities for professional development and hands-on experience with critical systems that drive our business forward. Our culture promotes teamwork and creativity, ensuring that every team member's contributions are valued and recognised, making it a rewarding place to build your career.
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    Contact Detail:

    Car Planet Recruiting Team

    StudySmarter Expert Advice 🤫

    We think this is how you could land Senior Software Engineer – Systems Improvement & Scale in Enfield

    Tip Number 1

    Network like a pro! Reach out to your connections in the tech industry, especially those who might know someone at Car Planet. A friendly chat can sometimes lead to a referral, which is always a bonus!

    Tip Number 2

    Show off your skills! If you’ve got a portfolio or GitHub with projects that highlight your experience in improving systems, make sure to share it. It’s a great way to demonstrate your hands-on abilities.

    Tip Number 3

    Prepare for the interview by understanding Car Planet's products. Dive into Autogrid, Audiofy, and RoutePortal. Knowing their systems inside out will help you discuss how you can improve them during your chat.

    Tip Number 4

    Don’t forget to apply through our website! It’s the best way to ensure your application gets seen. Plus, we love seeing candidates who take that extra step to connect directly with us.

    We think you need these skills to ace Senior Software Engineer – Systems Improvement & Scale in Enfield

    Software Development
    Full-stack JavaScript
    TypeScript
    Next.js
    Node.js
    APIs
    Databases
    Python
    Scripting
    Data Processing
    Refactoring
    System Improvement
    Technical Leadership
    Autonomous Work
    Judgement on Priorities

    Some tips for your application 🫡

    Show Off Your Experience: When you're writing your application, make sure to highlight your 5+ years of software development experience. We want to see how you've tackled live production systems and what impact you've made in your previous roles.

    Be Specific About Your Skills: Don’t just list your skills; give us examples! If you’ve worked with JavaScript, TypeScript, or Python, tell us about a project where you used these technologies to improve system performance or stability.

    Demonstrate Problem-Solving Abilities: We’re looking for someone who can turn business problems into practical technical solutions. Share a story in your application about a challenge you faced and how you approached it—this will really help us see your thought process.

    Apply Through Our Website: We encourage you to apply directly through our website. It’s the best way for us to receive your application and ensures you don’t miss out on any important updates from us during the hiring process!

    How to prepare for a job interview at Car Planet

    Know Your Codebase

    Before the interview, take some time to familiarise yourself with the existing production codebase. Understand its structure and common issues that might arise. This will not only help you answer technical questions but also show your proactive approach to problem-solving.

    Demonstrate Your Refactoring Skills

    Be prepared to discuss specific examples of how you've improved system stability and performance in past roles. Highlight your experience with refactoring and how it positively impacted the systems you worked on. This will resonate well with their need for someone who can safely refactor critical areas.

    Showcase Your Collaboration Skills

    Since you'll be partnering closely with various teams, think of examples where you've successfully collaborated with product managers or operations teams. Emphasise your ability to turn business problems into practical technical solutions, as this is key for the role.

    Ask Insightful Questions

    Prepare thoughtful questions about their current systems and challenges they face. This shows your genuine interest in the role and helps you gauge if the company culture aligns with your working style. Plus, it gives you a chance to demonstrate your knowledge about the industry.

    Senior Software Engineer – Systems Improvement & Scale in Enfield
    Car Planet
    Location: Enfield

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