At a Glance
- Tasks: Design and deliver scalable platform services while enhancing developer experience.
- Company: Join ENSEK, a cloud-native SaaS leader transforming the energy retail sector.
- Benefits: Enjoy 25 days holiday, health insurance, remote work, and a supportive team culture.
- Other info: Be part of a dynamic team with excellent career development opportunities.
- Why this job: Make a real impact on the global energy transition with innovative technology.
- Qualifications: Experience in platform engineering, coding, and a growth mindset.
The predicted salary is between 60000 - 75000 £ per year.
About ENSEK
ENSEK builds the cloud‐native SaaS software that's transforming how energy retailers operate, innovate and manage at scale. We help retailers lower operating costs, improve billing accuracy for consumers, and enhance customer experience through automation and AI‐driven insight, all underpinned by modern, cloud‐native architecture. ENSEK is at an exciting inflection point as we scale at pace towards new international horizons. If you're driven by solving complex, real‐world problems and want to build modern technology that accelerates the global energy transition, you'll feel right at home with us.
About The Role
The Platform Engineer III is an experienced engineer who delivers high‐quality, scalable platform services while contributing significantly to infrastructure design, developer experience thinking, and delivery practices. Operating with a high level of autonomy, this role demonstrates strong platform engineering fundamentals, participates in shaping architectural decisions, and supports engineering teams in achieving predictable, value‐led delivery. The Platform Engineer III applies advanced capability across Product, Delivery, and Engineering, helping uplift peers and contributing to ENSEK's platform‐first engineering culture.
Key responsibilities
- People & Conduct
- Demonstrate a mature growth mindset, routinely seeking feedback and acting on it to drive improvement.
- Model ownership and accountability, supporting peers in developing the same behaviours.
- Facilitate constructive debate and foster an inclusive, psychologically safe environment.
- Show resilience and adaptability in dynamic and challenging situations.
- Product
- Understand internal developer needs and platform strategy, using insights to drive technical decisions.
- Use platform metrics and developer feedback to inform conversations, challenge assumptions, and propose improvements.
- Evaluate platform approaches with commercial awareness, identifying cost‐efficient infrastructure options.
- Clearly articulate platform value and enable engineering teams to understand and adopt it.
- Delivery
- Break down large platform initiatives into incremental, testable slices that unlock early learning and value.
- Contribute to accurate estimation and planning, highlighting risks and dependencies.
- Promote agile ways of working and challenge behaviours that hinder flow and predictability.
- Communicate clearly, simplify complex platform concepts, and produce golden path documentation so teams can self‐serve.
- Engineering Practices
- Write high‐quality, maintainable infrastructure‐as‐code and platform tooling aligned to ENSEK standards (e.g. Terraform, Crossplane, Helm).
- Contribute to platform architectural discussions; propose cloud‐native design options with strong reasoning, including EKS, GitOps, and self‐service patterns.
- Apply test‐first approaches and contribute to robust testing strategies for platform tooling and infrastructure changes.
- Improve observability, alerting, and operational practices across platform services to ensure reliability for all engineering teams.
- Advocate secure coding and infrastructure practices, including least‐privilege access and supply chain hygiene, ensuring compliance with ENSEK's policy.
- Engineering Community
- Share platform knowledge widely, contribute to guilds, and elevate engineering and infrastructure standards.
- Mentor junior engineers, support skill development across the team, and help onboard engineering teams onto platform capabilities and golden path tooling.
- Participate in platform and community improvement initiatives, champion golden path adoption, and uphold ENSEK engineering values.
Experience required
Key Skills
- Product Skills
- Developer Focus: Applies internal engineering team insight to shape platform delivery and technical decisions.
- Insight Driven: Uses platform metrics and developer feedback to challenge assumptions and propose alternatives.
- Commercial Awareness: Understands infrastructure cost implications and identifies value‐optimising platform solutions.
- Delivery Skills
- Agility: Breaks down complexity; supports effective refinement and estimation.
- Simplicity: Communicates clearly; identifies opportunities to simplify processes and solutions.
- Engineering Skills
- Code & IaC: Writes high‐quality, well‐structured code and infrastructure‐as‐code; provides meaningful feedback in reviews across Terraform, Crossplane, and GitHub Actions.
- Design: Contributes to platform system design, demonstrating understanding of cloud‐native architecture, EKS cluster patterns, and self‐service infrastructure.
- Operations: Builds production‐ready software and continuously improves operational practices.
- Security & Compliance: Follows and promotes secure development standards.
- Soft Skills
- Growth Mindset
- Ownership
- Psychological Safety
- Challenge & Support
- Resilience
Company Benefits
- 25 days' holiday + bank holidays
- Option to buy or sell 5 extra annual leave days per year
- Vitality Health Insurance, including private healthcare, virtual GP access, mental‐health support and wellbeing perks (50% off gym memberships - Virgin Active, Nuffield, PureGym)
- Pension with 5% matched contribution
- Regular team‐wide and company‐wide events
- 2 volunteering days per year to give back
- Remote‐first working environment with offices in London and Nottingham
Senior Platform Engineer — Cloud-Native, Self‐Serve Infra in Nottingham employer: ENSEK
ENSEK is an exceptional employer that fosters a dynamic and inclusive work culture, empowering employees to tackle complex challenges in the energy sector. With a strong focus on personal growth, ENSEK offers extensive opportunities for professional development, alongside generous benefits such as 25 days' holiday, health insurance, and a remote-first working environment. Join us in shaping the future of energy retail while enjoying a supportive atmosphere that values innovation and collaboration.
StudySmarter Expert Advice🤫
We think this is how you could land Senior Platform Engineer — Cloud-Native, Self‐Serve Infra in Nottingham
✨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 ENSEK 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 ENSEK.
✨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 ENSEK.
✨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 ENSEK 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 Senior Platform Engineer — Cloud-Native, Self‐Serve Infra in Nottingham
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 ENSEK.
Craft a killer cover letter:Your cover letter is your chance to stand out—make it personal! Explain why you want to work at ENSEK 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 ENSEK
✨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 ENSEK 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.
