At a Glance
- Tasks: Architect complex systems and craft impactful Python solutions in a collaborative Agile team.
- Company: Leading UK tech company transforming the energy sector with innovative data-driven solutions.
- Benefits: Competitive salary, bonus scheme, 25 days leave, gym access, and health care benefits.
- Other info: Dynamic environment with opportunities for career progression and community involvement.
- Why this job: Shape the future of technology while mentoring the next generation of engineers.
- Qualifications: Deep love for Python, AWS, and experience in guiding technical direction.
The predicted salary is between 65000 - 65000 £ per year.
If you're a Principal Software Engineer, who enjoys architecting complex systems, owning technical decisions, and crafting Python‑powered solutions that make a real impact to customers, then this might be the role for you!
Step into a role where your technical vision truly shapes the future!
About us
We are a leading UK technology company delivering transformative, data driven solutions for the energy sector and beyond. With two decades of experience, we help organisations unlock the power of smart data to improve efficiency, reduce cost to serve, and enhance customer experience. Trusted by millions of households and major industry partners, our innovative platforms and energy data management solutions support a smarter, more sustainable future. Our passionate team of problem solvers is committed to building technology that truly makes a difference, and our promise is to put customers at the heart of everything we do.
What does this role involve?
As a Principal Software Engineer, you’ll join an Agile team united by curiosity, collaboration, and the belief that great technology can truly make a difference. You’ll work with Python, AWS, and MariaDB to design and develop systems that keep pace with fast‑moving business needs. You’ll make key architectural decisions, drive technical strategy, and lead the engineering evolution of a platform used across the organisation. You’ll also play a central role in coaching and mentoring engineers, helping to build a culture where innovation thrives and quality is non‑negotiable. And as our product team grows, you’ll have the opportunity to step into leadership, guiding the next generation of engineering talent.
Who are we looking for?
We are looking for someone who brings a deep love for Python, AWS, and modern development practices into every conversation, every design session, and every piece of code. You’ve guided technical direction before, steering architectural decisions and elevating engineering standards. You enjoy uncovering new approaches, experimenting with fresh ideas, and finding better ways to build. What truly sets you apart is your willingness to share what you know. You take time to mentor others, celebrate their growth, and help them navigate challenges. You recognise that great products come from great people. Agile environments energise you. You understand how Scrum can bring structure and freedom at the same time, and you adapt quickly to changing needs. When a complex problem appears, you never shy away. You listen, you question, you clarify, and you bring solutions that make sense to both engineers and non‑technical stakeholders alike.
And what is the technical environment?
- Python software engineering
- AWS
- Terraform
- Jira
- GitHub (with Copilot)
- CI/CD Pipelines
- Azure APIM
- Rest APIs
- Microservices
- Grafana
- Agile
- Event Driven Architecture
This role may involve on-call working on a rota basis (24/7).
To be successful in this role you may be required to pass an enhanced security vetting process.
Benefits - available from day one!
- Bonus Scheme, made up of personal and company elements.
- Career progression, we’re an expanding organisation.
- 25 days annual leave plus bank holidays.
- Pension scheme, company contribution at 4% of your salary when you contribute 5%.
- Our Chandlers Ford office offers access to a free, fully equipped onsite gym, along with showers and changing facilities.
- The opportunity to win tickets to major outdoor events including, gigs and shows at arenas around the UK.
- We offer an EV car scheme. Qualifying terms and conditions apply.
- A health care scheme that includes dental, eye care, treatments, and diagnostics health consultations.
- Death in service – we pay three times your annual salary to your designated next of kin, giving them peace of mind should you sadly pass away during service.
- Employee Assistance Programme with access to counselling support, legal and financial advice 24/7 365 days a year, as well as a GP line and Your Care.
- We also offer all our staff a paid volunteering day every year.
- Plus, the chance to be involved in various fund-raising opportunities.
Our employees, just like our customers come from all walks of life, and we’re fuelled in championing diversity, inspiring an inclusive culture, and enabling an environment where you can be your authentic self.
Principal Software Engineer - Python in Oxford employer: Luxion
Join a leading UK technology company that is not only at the forefront of delivering transformative data-driven solutions for the energy sector but also fosters a vibrant work culture where innovation and collaboration thrive. With a strong commitment to employee growth, you will have access to career progression opportunities, a comprehensive benefits package including a bonus scheme, health care, and a fully equipped onsite gym, all while working in a hybrid environment near Chandlers Ford or Oxford. Embrace the chance to make a meaningful impact while being part of a diverse team that champions inclusivity and supports your authentic self.
StudySmarter Expert Advice🤫
We think this is how you could land Principal Software Engineer - Python in Oxford
✨Join Local Tech Meetups
Get out there and mingle with fellow developers by joining local tech meetups. It’s a fantastic way to meet people who might be working at Luxion or know someone who does. Plus, you can pick up some trendy tech skills and trends while you're at it!
✨Contribute to Open Source Projects
Show off your coding chops by jumping into open-source projects. Not only does this give you practical experience, but it also gets you noticed in the dev community. You'll create a killer portfolio that speaks volumes about your skills to Luxion.
✨Tap into Online Developer Communities
Don’t underestimate the power of online developer communities like GitHub, Stack Overflow, and even Reddit. Participate in discussions, share your projects, and build your visibility. We can often find opportunities through these channels that can lead to a full-time gig at companies like Luxion.
✨Explore Job Boards Specifically for Tech Roles
Keep your eyes peeled on job boards that focus on tech roles. Sites like TechCareers or Stack Overflow Jobs can often have listings for companies like Luxion that might not show up on broader job sites. Make it a habit to check these regularly, and don’t hesitate to apply directly through our website!
We think you need these skills to ace Principal Software Engineer - Python in Oxford
Some tips for your application 🫡
Show off your coding skills:When applying for a software engineering role, it's super important to showcase your coding skills. Make sure your CV includes your tech stack, any relevant programming languages you’re comfortable with, and examples of projects you've worked on. If you have a GitHub profile, link it up! We love to see code in action.
Tailor your portfolio:For a full-time role, we’d expect to see some solid examples of your work in your portfolio. Make sure to include at least two or three projects that highlight your problem-solving skills and your ability to work with different technologies. Focus on the projects that are most relevant to the position at Luxion.
Craft a killer cover letter:Your cover letter is your chance to stand out—make it personal! Explain why you want to work at Luxion and how your skills align with the role. Show us your passion for software development. We dig enthusiastic candidates who understand the value of collaboration and continuous learning!
Be clear and concise:When it comes to writing your CV and cover letter, clarity is key. Avoid jargon that could confuse us and stick to simple, direct language. Highlight your achievements with quantifiable results where possible, and keep everything easy to read. A well-organised application goes a long way!
How to prepare for a job interview at Luxion
✨Brush Up on Your Coding Skills
For a full-time software engineering role, it's crucial that we stay sharp with our coding abilities. Expect technical questions that might involve solving problems on the spot or discussing algorithms. Practise on platforms like LeetCode or HackerRank to get comfortable with the types of questions that often come up.
✨Know Your Tools and Frameworks
Make sure we’re well-acquainted with the tools and technologies listed in the job description. Familiarise ourselves with any specific frameworks or programming languages mentioned. If Luxion uses React or Node.js, for instance, be ready to discuss how we’ve used them in previous projects or coursework.
✨Showcase Your Projects
Bring along a portfolio that highlights our best work. This could be code samples, GitHub repositories, or any side projects we’ve built. Make sure we can talk through our thought process for each project, especially the challenges we faced and how we solved them—this shows our problem-solving skills in action.
✨Prepare for Behavioural Questions
While technical skills are key, full-time positions also require cultural fit. Be ready to discuss our previous experiences and how we handle teamwork, conflict, and deadlines. Brush up on the STAR method—Situation, Task, Action, Result—to clearly articulate our past experiences when discussing how we've contributed to a team.
