At a Glance
- Tasks: Develop and enhance innovative software for healthcare, tackling complex engineering challenges.
- Company: Join OneAdvanced, a leading tech company transforming healthcare with cutting-edge solutions.
- Benefits: Enjoy 26 days holiday, private medical insurance, and performance-based rewards.
- Other info: Collaborative environment with excellent career growth and a commitment to diversity.
- Why this job: Make a real impact on patient care while working with emerging AI technologies.
- Qualifications: Experience in C++, C#/.NET, and a passion for clean, maintainable code.
The predicted salary is between 63000 - 77000 £ per year.
Join One Advanced
What if you could combine challenging software engineering with the opportunity to make a genuine difference to healthcare?
At One Advanced, we're evolving Vision, a large-scale clinical practice management system used by GP surgeries and healthcare clinics.
Thousands of clinical users rely on our software to support patient care, making reliability, quality and innovation essential.
We're looking for an experienced Senior Software Engineer to help shape the future of this mission-critical product.
You'll work across a complex, established codebase, modernising technology, developing new capabilities and using agentic AI tools to transform how we build and test software.
Working with C++, COM and C#/.
NET, you'll tackle substantial engineering challenges while helping move Vision towards a more modern, maintainable architecture.
It's an opportunity to combine strong engineering fundamentals with emerging AI-enabled development practices and see the real-world impact of your work.
#LI-DG1
What You Will Do
- Develop, maintain and enhance Vision across a complex codebase spanning C++, COM and C#/. NET.
- Diagnose challenging issues and improve system reliability, performance, maintainability and test coverage.
- Support the modernisation of legacy C++ and VB6 functionality towards modern . NET solutions.
- Work with SQL databases, COM interop and established data access technologies.
- Contribute to new web-based workflows through our IQHealth platform, improving experiences for GP practices and clinical users.
- Use agentic AI development and testing tools to accelerate engineering workflows, explore solutions and improve software quality.
- Review and validate AI‑generated code, applying sound engineering judgement to ensure changes are secure, reliable and appropriate for a clinical environment.
- Develop and maintain integrations with NHS systems and relevant healthcare standards.
- Contribute to technical design, code reviews and automated testing, collaborating with Product and QA teams to deliver effective solutions.
- What You Will Have
Must Have
- Commercial experience developing complex software using MS C++ and C#/. NET.
- Experience with Windows desktop applications, ideally Windows Forms, and a strong understanding of maintaining and evolving established systems.
- Experience working with large codebases, diagnosing complex issues and understanding dependencies across application components.
- Solid SQL and relational database development skills; Postgre SQL experience is preferred.
- Experience using Visual Studio and MSBuild in a commercial development environment.
- An understanding of COM, OLE and interoperability concepts.
- An understanding of Windows APIs.
- A commitment to clean, maintainable code, appropriate testing and high engineering standards.
Highly Desirable
- Experience with COM‑based systems, VB6 or VB. NET and legacy modernisation.
- Practical experience with agentic AI development tools, AI coding assistants or AI‑enabled testing.
- Curiosity about AI‑assisted software engineering and the ability to critically assess AI‑generated code.
- Experience in healthcare, regulated or safety‑critical software environments.
- Knowledge of NHS integrations, clinical systems or SNOMED CT.
- Experience with unit testing frameworks and Ranorex or comparable testing frameworks.
- Experience navigating large solutions with many interconnected projects.
- Familiarity with Git or Perforce, Jira and Confluence.
- Success Measures
- Deliver high-quality software that meets requirements and minimises post‑release defects.
- Improve system reliability, maintainability and automated test coverage.
- Contribute to modernisation initiatives that support Vision's long‑term evolution.
- Use AI‑enabled development and testing to improve productivity without compromising quality or safety.
- Meet applicable NHS assurance and information governance requirements, maintaining a strong focus on clinical safety and data integrity.
- Communicate technical decisions clearly and collaborate effectively across engineering, product and QA.
- Contribute to thoughtful technical design, code reviews and continuous improvement.
- Key Relationships
- Engineering teams and technical leadership.
- Product Managers and Product Owners.
- QA and software testing teams.
- External stakeholders, including NHS authorities and health boards.
- Capabilities & Behaviours
- Enjoys solving complex engineering problems and improving established systems.
- Takes pride in writing reliable, maintainable software and making sound technical decisions.
- Understands the responsibility involved in developing software that supports clinical care.
- Embraces modern engineering practices and is curious about how agentic AI can improve software development.
- Applies critical thinking when evaluating AI‑generated code and changing complex systems.
- Collaborates openly, shares knowledge and constructively challenges ideas to achieve better outcomes.
- Balances pragmatic delivery with long‑term technical quality and continuous improvement.
- What We Do For You
- Wellbeing that means something
- 26 days' holiday + bank holidays (and the option to buy more) plus 1 paid volunteering day every year
- Exceptional family leave, 26 weeks fully paid maternity/adoption, 4 weeks fully paid paternity, 22 weeks fully paid shared parental leave, plus 5 days paid bereavement leave
- Robust sick pay of up to 13 weeks full pay + 13 weeks half pay
- 24/7 Employee Assistance Programme for confidential support
- Private medical insurance for everyone, no medical-history exclusions
- Financial benefits that have your back
- Performance‑based rewards tailored to your role, from company‑wide bonuses to OTE and commission structures
- Income protection: up to 75% salary for 5 years if you ever need it
- Pension with 5% matched company contributions
- Life assurance worth 4x your salary from day one
- Free financial planning session with the option to engage in more tailored financial coaching.
- Grow your career with us
- Skills Hub learning platform with leadership pathways, future‑manager training, and a huge online library
- Access to external training and apprenticeships
- Making a Difference
- Match It! Fundraise for a cause close to your heart and One Advanced will match part of the funding
- Pennies from Heaven donate the pennies from your pay check to help make a difference without lifting a finger
- Plus plenty other flexible benefits to suit your lifestyle on our Reward Hub, including:
- ULEV car scheme with 1,000+ models
- Dental insurance, Health Cash Plan, Critical Illness Cover, Partner Life Cover, Health Assessment, Gym Membership
Who We Are
At One Advanced, we are at the forefront of delivering sector‑focused technology solutions that simplify complexity, drive meaningful progress, and help build a fairer, more inclusive society.
We're much more than a software company.
We deliver Saa S workflow applications and IT services that power organisations across Education, Government, Healthcare, Legal, Manufacturing, Housing, Retail, and more.
One Advanced is one of the UK's largest business software and services companies. Based in Birmingham (The Mailbox), operating across the UK, Ireland, India, and Australia.
Our secure, scalable platform, including One Advanced AI, our private AI service for UK organisations, powers connectivity and innovation across critical sectors.
Alongside our software are our IT services, including hosting, managed services, and application modernisation.
We strive to create an inclusive workplace that drives innovation and collaboration, championing diverse perspectives and ideas.
Our Environmental, Social and Governance (ESG) strategy is embedded in everything we do, guiding us to create meaningful impact for our people, our customers and the planet.
Proud to be recognised in the Financial Times' Best Employers 2026 list for the second-year running, an independent and data led ranking based on employee feedback.
Join us and become part of a team that's powering the world of work and making a real difference.
Join us and become part of a team that's powering the world of work and making a real difference.
- Learn more at
Senior Software Engineer in Birmingham employer: OneAdvanced Limited
At OneAdvanced, we pride ourselves on being an exceptional employer that fosters a culture of innovation and collaboration. Our commitment to employee wellbeing is evident through generous benefits such as 26 days of holiday, robust sick pay, and comprehensive family leave policies. Located in Birmingham, our dynamic work environment offers ample opportunities for professional growth through our SkillsHub learning platform and external training, making it an ideal place for Systems Engineers looking to advance their careers while contributing to meaningful projects.
StudySmarter Expert Advice🤫
We think this is how you could land Senior Software Engineer in Birmingham
✨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 OneAdvanced Limited 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 OneAdvanced Limited.
✨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 OneAdvanced Limited.
✨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 OneAdvanced Limited 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 Software Engineer in Birmingham
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 OneAdvanced Limited.
Craft a killer cover letter:Your cover letter is your chance to stand out—make it personal! Explain why you want to work at OneAdvanced Limited 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 OneAdvanced Limited
✨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 OneAdvanced Limited 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.
