Senior Software Engineer (C++)
Confirmed on the employer's own hiring board on Oct 18, 2026. First seen by Alion on Aug 3, 2026. IRIS Software Group scores A on the Alion truth index.
About IRIS
IRIS Software Group is one of the UK's largest privately held software companies, trusted by 100,000+ businesses, schools and accountancy firms to keep their operations running. Our software pays 1 in 6 UK employees, supports over 12,000 schools, and is relied on by 91 of the top 100 UK accountancy firms.
We're a Great Place to Work® certified employer, recognised for our commitment to well-being, inclusion and development - and we're growing fast.
The Role
As a successful candidate you will be working in the IRIS Accountancy Solutions business unit. This part of IRIS produces software for UK Accountancy practices. You will be working as part of an Agile team to deliver solutions to user stories and requirements in an agile environment. The role is a challenging and dynamic one, with key deadlines to be hit. The role will require learning new skills and bringing a focused attitude to the tasks.
You will be involved in varied technical solutions, ranging from C and C++ through to the latest .NET technologies using C# and WPF.
These applications form part of an integrated suite, based around a core SQL database.
Your Main Responsibilities
Implementing user stories and resolving issues in the team’s backlog
Contribute to the team’s backlog, helping to refine and estimate stories.
Translating technical requirements into application code using development best practices.
Developing and integrating software solutions.
Participating in reviews of own work and in reviews of the work of colleagues.
Unit testing of modules developed or modified, ensuring the application meets the needs of clients and the business.
Work collaboratively in an Agile environment, being proactive to work with others to deliver sprint and release goals.
Your Experience
Windows application software engineering/programming skills with balance of .Net and legacy windows forms work
Strong knowledge of C++ and C#
Strong Knowledge of WPF and XAML
Strong experience of Microsoft Visual Studio
Strong experience of developing with relational databases
Experience of Azure DevOps would be useful
Experience of working in an Agile environment
Experience of formal software development lifecycles would be useful
Has a systematic, disciplined and analytical approach
Keen to help others and collaborate with other teams
BSc or equivalent in a software engineering discipline
7+ years of software development experience
Benefits
Signal Iduna Medical Insurance
Meal vouchers - 30 RON/working day - currently offered through Up Romania
Annual bonus according to the company’s performance management system, between 2% - 3% out of your annual gross salary
Annual leave - 22 days
Giving back days - 3 days/year for charity + 1 Birthday off (if you complete the 3 days for charity)
Eyeglasses Reimbursement - 300 RON/per year
Events (team buildings, kickoffs, dinners)
Learning and development programs using Cornerstone
Access to Pluralsight for self-paced learning (first come, first served)
Paid certifications
eMAG vouchers as quarterly incentives for living the IRIS values
Discounts programs with Lensa (free optometric consultations and discounts for eyewear) and Aerotravel (discounts for travel packages)
Why You’ll Love Working Here
Impact: Your work will influence millions globally.
Growth: Continuous learning and career development opportunities.
Belonging: A culture that celebrates diversity and empowers every individual.
Ready to Apply?
Click Apply - we’re excited to learn about your unique perspective and experience. If you need adjustments during the process, let us know. We’re committed to making this opportunity accessible to everyone.
What to expect from our hiring process
Our process is designed to be fair, transparent and straightforward. Stages vary depending on the role - more senior positions may involve additional steps, and some areas include role-specific assessments such as a technical test or case study - but typically you can expect:
Application review - we assess your experience and potential
Initial call - a short conversation to learn about you and share more about the role
Skills assessment - tailored to the position, e.g. case study, coding challenge or portfolio review
Final interview - meet the team and explore how you'll make an IMPACT at IRIS
We'll always walk you through the specific stages at the start of the process so you can prepare with confidence.
If you need any adjustments or accommodations during the process, let us know, we’re committed to making this experience accessible for everyone.