Energy One Limited
Developer In Test

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Job Description
About EnergyOne EnergyOne is a leading provider of innovative energy trading and operations software. We help energy retailers, generators, and traders manage complex markets with efficiency and reliability. As part of our expanding development team, you will contribute to building high-performance, scalable software solutions used across the global energy sector.
Role Overview We are seeking a Software Developer with strong object-oriented programming skills and experience working with .NET as well as writing tests using Playwright and/or Selenium. The ideal candidate will be collaborative, eager to learn, and open to adopting modern cloud and microservice-based architectures. You will work with a cross-functional team to design, develop, and maintain applications that support EnergyOne’s platform and services. This is an excellent opportunity to grow your expertise while contributing to meaningful, real-world systems in the energy industry.
Reasons to use Rodeo
I’m in my final year doing Economics and I don’t know whether to apply for grad schemes now or do a masters first. What do you think?
Honest answer — it depends on where you want to end up. A lot of top grad schemes (Big 4, civil service, banking) don’t need a masters. Let’s look at the ones you’d be competitive for now, and we can decide if a masters actually adds anything.
Also worth knowing: most autumn 2026 applications are open now. Timing matters more than you think.
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Grad scheme, placement, apprenticeship? Not sure what you want yet — that's fine. Your agent talks it through with you and turns "I have no idea" into a shortlist.
Graduate Consultant — 2026 Scheme
Why you're a good match
StrongYour economics background and your summer at a regional bank line up with what PwC looks for on the consulting scheme. Applications close in four weeks.
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Every day your agent scans the market matching roles against what actually matters to you, not just keywords on a CV.
Why you're a good match
You’ve got the grades and the economics background, and your bank internship is exactly the experience this scheme looks for. Apply soon — deadlines close within the month.
Experience fit
Your summer at the bank plus your econometrics coursework map directly to the day-one responsibilities on this scheme — client modelling, market briefings, and deal support.
Only hits
No noise. No "maybe this fits." Just roles with a clear explanation of why they're right — and where to focus when applying.
The Role
Experience in software development with C# and .NET (.NET Framework and/or .NET Core). Strong understanding of object-oriented programming (OOP) principles and design patterns. Solid experience with Microsoft SQL Server, including schema design and SQL development. Experience building REST and Soap APIs and working with JSON/XML data formats. Familiarity with source control systems, preferably Git. Familiarity with Selenium, TypeScript and Playwright Problem-solving mindset and effective communication skills.
Essential Requirements
Develop, maintain, and enhance .NET applications using C# and related technologies. Develop, maintain and enhance Playwright and Selenium suite of tests Contribute to the design and architecture of software components following object-oriented principles and best practices. Work with Microsoft SQL Server, including writing complex queries, stored procedures, and performance tuning. Collaborate with the team on the design and implementation of microservices and distributed systems. Assist in integrating new features into existing Windows Services and cloud-ready components. Participate in code reviews, technical discussions, and knowledge-sharing sessions. Troubleshoot and resolve application issues across development, test, and production environments. Follow Agile development methodologies and contribute to continuous improvement


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Desirable Recruitments
Nice-to-Have / Preferred Skills While not mandatory, experience in the following areas will be considered a strong advantage:
Cloud platforms such as Azure or AWS. Microservices architecture and distributed system patterns. Angular experience Windows Services development and maintenance. Docker and container-based development workflows. Experience with automated testing (unit testing, integration testing). Knowledge of CI/CD pipelines. Energy industry experience or interest in energy markets.
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