Senior Backend Engineer - Python
Senior Backend Engineer - Python

Senior Backend Engineer - Python

Full-Time 60000 - 80000 £ / year (est.) Home office possible
Xact Placements Ltd

At a Glance

  • Tasks: Design and build backend services for a cutting-edge cybersecurity platform.
  • Company: Fast-growing cybersecurity scale-up with a remote-first culture.
  • Benefits: Competitive salary, ownership opportunities, and fast-tracked career growth.
  • Why this job: Join a mission-driven team reshaping cybersecurity and make a real impact.
  • Qualifications: 5+ years in backend development, strong Python skills, and microservices experience.
  • Other info: Work with top industry talent and the latest technology.

The predicted salary is between 60000 - 80000 £ per year.

Are you ready to build the core systems that power one of the fastest-growing cybersecurity platforms on the planet? This is your chance to join a research-driven, venture-backed security scale-up that’s trusted by some of the world’s biggest enterprises and critical infrastructure providers. Recognised by Gartner, armed with funding, and scaling aggressively worldwide, they’re on a mission to reshape how organisations stay ahead of real-world cyber threats.

As a Senior Backend Engineer, you’ll play a key role in building scalable, high-performance backend systems that ingest, process, and serve data on millions of assets—helping global security teams uncover exposures before attackers do.

What you’ll be doing:

  • Designing and building backend services and data pipelines powering a cutting-edge cybersecurity platform
  • Architecting scalable microservices and APIs to process massive volumes of security data
  • Working closely with product and frontend teams to integrate backend services into the platform experience
  • Continuously improving systems performance, deployment, and monitoring as the company scales globally

What they’re looking for:

  • 5+ years’ experience designing and maintaining mission-critical backend applications
  • Strong Python engineering skills, with a track record of building performant, maintainable, and testable systems
  • Solid background in microservices architecture
  • Proficiency with Postgres & MongoDB (relational + non-relational)
  • Experience with event-driven architectures and asynchronous workflows (Kafka, Airflow, etc.)
  • Solid coding practices (clean, testable, automated)
  • The mindset of a builder: thrives in fast-paced startup environments, takes ownership, solves complex challenges

Bonus points if you’ve worked with: large-scale data processing, ETL pipelines, cloud deployments, or DevOps/CI-CD practices.

Why join?

  • Competitive salary + benefits
  • Ownership and impact in a high-growth cybersecurity scale-up
  • Work with cutting-edge technology and some of the brightest minds in the industry
  • Fast-tracked career growth with internal progression opportunities
  • Remote-first culture with the best tools and kit to succeed

This is more than a backend engineering role – it’s a chance to be part of a team building technology that helps some of the world’s largest enterprises stay ahead of attackers.

Senior Backend Engineer - Python employer: Xact Placements Ltd

Join a dynamic and innovative cybersecurity scale-up that prioritises employee growth and offers a fully remote work environment tailored for UK-based talent. With competitive salaries, a culture of ownership, and the opportunity to work with cutting-edge technology alongside industry experts, this role as a Senior Backend Engineer promises not just a job, but a meaningful career path in a fast-paced, supportive atmosphere focused on tackling real-world cyber threats.
Xact Placements Ltd

Contact Detail:

Xact Placements Ltd Recruiting Team

StudySmarter Expert Advice 🤫

We think this is how you could land Senior Backend Engineer - Python

✨Tip Number 1

Network like a pro! Reach out to folks in the cybersecurity space on LinkedIn or at industry events. A friendly chat can lead to opportunities that aren’t even advertised yet.

✨Tip Number 2

Show off your skills! Consider contributing to open-source projects or building your own side projects that showcase your Python and backend engineering prowess. This is a great way to demonstrate your capabilities beyond just a CV.

✨Tip Number 3

Prepare for technical interviews by brushing up on your coding skills and system design principles. Practice common interview questions related to microservices and data pipelines, so you can impress them with your knowledge.

✨Tip Number 4

Don’t forget to apply through our website! It’s the best way to ensure your application gets seen by the right people. Plus, we love seeing candidates who are proactive about their job search!

We think you need these skills to ace Senior Backend Engineer - Python

Python Engineering
Backend Development
Microservices Architecture
API Development
Data Pipeline Design
Postgres
MongoDB
Event-Driven Architectures
Asynchronous Workflows
Clean Coding Practices
ETL Pipelines
Cloud Deployments
DevOps
CI-CD Practices

Some tips for your application 🫡

Tailor Your CV: Make sure your CV highlights your experience with Python and backend systems. We want to see how your skills align with the role, so don’t be shy about showcasing your achievements in building scalable applications!

Craft a Compelling Cover Letter: Your cover letter is your chance to tell us why you’re the perfect fit for our team. Share your passion for cybersecurity and how your background in microservices and data processing can contribute to our mission.

Showcase Your Projects: If you've worked on relevant projects, whether personal or professional, include them! We love seeing real-world examples of your coding skills and problem-solving abilities, especially in fast-paced environments.

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’re considered for this exciting opportunity in our growing team!

How to prepare for a job interview at Xact Placements Ltd

✨Know Your Tech Stack

Make sure you’re well-versed in Python and the specific technologies mentioned in the job description, like Postgres, MongoDB, and event-driven architectures. Brush up on your knowledge of microservices and be ready to discuss how you've implemented them in past projects.

✨Showcase Your Problem-Solving Skills

Prepare examples of complex challenges you've faced in previous roles and how you tackled them. This is especially important in a fast-paced startup environment where ownership and initiative are key. Use the STAR method (Situation, Task, Action, Result) to structure your responses.

✨Understand the Company’s Mission

Research the company’s mission and recent developments in the cybersecurity space. Be prepared to discuss how your skills can contribute to their goal of helping organisations stay ahead of cyber threats. Showing genuine interest in their work can set you apart from other candidates.

✨Ask Insightful Questions

Prepare thoughtful questions about the team dynamics, the technology stack, and the company's future plans. This not only shows your enthusiasm for the role but also helps you gauge if the company culture aligns with your values and work style.

Senior Backend Engineer - Python
Xact Placements Ltd

Land your dream job quicker with Premium

You’re marked as a top applicant with our partner companies
Individual CV and cover letter feedback including tailoring to specific job roles
Be among the first applications for new jobs with our AI application
1:1 support and career advice from our career coaches
Go Premium

Money-back if you don't land a job in 6-months

>