Job Description

Role Introduction:

As a

Senior Software Engineer

, you will be a

technical leader and architect

, taking full ownership of modernizing and scaling our enterprise-grade product. Within your first year, you will have led major feature rollouts, improved system scalability, and mentored the engineering team, driving technical excellence across the board.
What You Will Do:
Architect and implement scalable, maintainable backend systems in

C# / .NET (Framework + Core)

Lead

WiseJ-based UI development

to deliver seamless user experiences Design and maintain

secure, high-performance APIs

Optimize

SQL Server databases

, ensuring high availability and performance Deploy and maintain cloud-native solutions using

Microsoft Azure

services Champion agile methodologies and participate in planning, demos, and retros Conduct peer code reviews, mentor developers, and uphold code quality standards Stay ahead of tech trends and recommend tools or practices to improve productivity

What You Will Have:

As a Senior Software Engineer, you will have:6-9 years of full-stack development experience with

.NET (C#)

Deep understanding of

WiseJ,Vue J or similar UI frameworks

Proven track record building

REST APIs with .NET Core

Strong skills in

SQL Server

- schema design, query tuning, and optimization Hands-on experience with

Microsoft Azure

- App Services, Azure SQL, DevOps Familiarity with software architecture principles and modern design patterns Strong leadership, communication, and mentorship capabilities

What We Do For You:

Wellbeing focused

- Our people are our greatest assets, and ensuring everyone feels their best self to come to work is integral.

Annual Leave

- 20 days of annual leave, plus public holidays

Employee Assistance Programme

- Free advice, support, and confidential counselling available 24/7.

Personal Growth

- We're committed to enabling your growth personally and professionally through development programmes.

Life Insurance

- 2x annual salary

Personal Accident Insurance

- providing cover in the event of serious injury/illness.

Performance Bonus

- Our Group-wide bonus scheme enables you to reap the rewards of your success.

Who We Are:

OneAdvanced is one UK's largest providers of business software and services serving 20,000+ global customers with an annual turnover of 330M+. We manage 1.5 million 111 calls per month, support over 2 million Further Education learners across the UK, handle over 10 million wills, and so much more. Our mission is to

power the world of work

and, as you can see, our software underpins some of the UK's most critical sectors.

We invest in our brilliant people. They are at the heart of our success as we strive to be a diverse, inclusive and engaging place to work that not only powers the world of work, but empowers the growth, ambitions and talent of our people.

To learn more about working at OneAdvanced please click here