Senior Backend Developer

Leap29; Oxford; On-site; GBP 65,000 - 90,000; Full time

Job summary

Leap29 is seeking an experienced Senior Software Engineer in Oxfordshire to join a team delivering next-gen Rock Physics and Geoscience software. You will design, implement and maintain high-performance desktop and cloud applications, working across C#/.NET and C++ codebases.

You will mentor colleagues, conduct code reviews and help modernise legacy software. The role focuses on architecture, testing, CI/CD and collaboration with product owners and scientists.

Qualifications

• Five-plus years of producing production-grade software.

Responsibilities

• Designing, developing and maintaining high-performance desktop and cloud applications.
• Taking ownership of technical solutions from architecture through deployment.
• Working across C#/.NET and C++ codebases.
• Modernising legacy scientific software and migrating to modern frameworks and UX.
• Implementing best practices around architecture, design patterns and CI/CD.
• Collaborating with Product Owners and stakeholders to deliver scalable solutions.
• Conducting code reviews and mentoring developers across the team.
• Exploring AI-assisted development tools to improve productivity and software quality.
• Contributing to technical strategy and continuous improvement initiatives.

Skills

C# / .NET

C/C++

Desktop apps

CI/CD pipelines

Cloud platforms

SOLID & architecture

Testing

Git & code reviews

AI-assisted development

Communication with stakeholders

Education

Bachelor's in Computer Science

Related Engineering degree

Tools

Visual Studio

Git

Azure

AWS

Google Cloud

GitHub Copilot

Job description

Are you an experienced Software Engineer looking to combine cutting-edge technology with scientific innovation?

We are seeking a Senior Software Engineer to join a highly skilled team developing next-generation Rock Physics and Geoscience applications used across the global energy sector. This is an opportunity to work on complex scientific software, influence technical direction, and help modernise a suite of industry-leading desktop and cloud-based products.

This is a hands-on engineering role where you'll be actively involved in software design, architecture, development, code reviews, and mentoring while working alongside Product Owners, Scientists, and Technical Leads.

What You'll Be Doing

• Designing, developing and maintaining high-performance desktop and cloud applications.
• Taking ownership of technical solutions from architecture through to deployment.
• Working across modern C#/.NET and C++ codebases.
• Modernising legacy scientific software and migrating applications to modern frameworks and user experiences.
• Implementing best practices around software architecture, design patterns, SOLID principles, testing and CI/CD.
• Collaborating with Product Owners and technical stakeholders to define and deliver scalable solutions.
• Conducting code reviews and mentoring developers across the team.
• Exploring and adopting AI-assisted development tools and emerging technologies to improve productivity and software quality.
• Contributing to technical strategy and continuous improvement initiatives.

What We're Looking For

• 5+ years' experience developing production-grade software applications.
• Strong commercial experience with C# and .NET.
• Strong C and/or C++ development experience.
• Experience building complex desktop applications within engineering, scientific, technical or data-intensive environments.
• Solid understanding of software architecture, object-oriented design, design patterns and SOLID principles.
• Experience with automated testing, Git, code reviews and CI/CD pipelines.
• Exposure to cloud technologies such as Azure, AWS or Google Cloud.
• Experience modernising legacy applications and improving UI/UX frameworks.
• Excellent communication and stakeholder management skills.
• Degree qualified in Computer Science, Software Engineering or a related Engineering discipline.
• Scientific, engineering, geoscience, geophysics, reservoir engineering or technical software development experience.
• Experience working with large scientific datasets and numerical algorithms.
• Knowledge of AI-assisted software development tools such as GitHub Copilot and AI-powered testing tools.

If you're passionate about building high-quality software, enjoy solving complex technical challenges, and want to work at the intersection of software engineering and science, we'd love to hear from you.

Senior Backend Developer Oxfordshire, United Kingdom