Lead Senior Software Engineer

Avanti; England; Hybrid; GBP 59,000 - 70,000; Full time

Job summary

A growing technology-led organization in the UK is seeking a Lead Senior Software Engineer to provide technical leadership and team management. This role involves mentoring developers while remaining hands-on with coding across modern and legacy systems. The successful candidate will enjoy a hybrid work environment and a competitive salary package, including excellent benefits like private medical cover and professional development support.

Benefits

Salary up to £70,000

Hybrid working with project-based flexibility

25 days annual leave + bank holidays + birthday off + Christmas shutdown

Pension scheme

Discretionary bonus

Private medical cover & Death in Service benefit

Ongoing professional development and training support

Qualifications

• Senior engineer with leadership experience.
• Comfortable managing and mentoring developers.
• Flexible and adaptable to work across projects and technologies.
• Strong communicator and collaborator.
• Motivated to improve processes and influence team culture.

Responsibilities

• Guide and mentor a talented development team.
• Remain hands-on and contribute across the full stack.
• Refine engineering practices within the team.

Skills

C# software development

AWS

Azure

SQL (MSSQL, Postgres)

Team leadership

Frontend and backend development

Tools

RabbitMQ

HTML

CSS

JavaScript (React or Vue)

Redis

APIs

Git

Bootstrap

SOLR

Job description

Overview

About the Business: Our client is a growing technology-led organisation delivering a wide variety of projects across both modern and legacy systems. Unlike companies where engineers spend years on the same product, this business offers exposure to diverse systems and infrastructures, from short-term initiatives to large-scale programmes. Following a recent restructure, the development function has been unified into a single, collaborative team. This creates a unique opportunity for the right person to influence culture, shape processes, and help drive continuous improvement.

The Role

We're seeking a Lead Senior Software Engineer to combine technical delivery with team leadership. You'll guide a talented development team, mentor and support colleagues, and play a key role in refining engineering practices. At the same time, you'll remain hands-on, contributing across the full stack and helping deliver high-quality solutions. The position is varied, offering the chance to work across modern and legacy systems, cloud platforms, and a broad technology stack. It\'s an excellent opportunity for someone who enjoys balancing coding and leadership responsibilities.

Key Skills

Essential

• Strong background in C# software development
• Experience with AWS and/or Azure
• Solid knowledge of SQL (MSSQL, Postgres, or equivalent)
• Proven track record in leading and mentoring developers
• Broad technical foundation with ability to work across frontend and backend

Desirable

• RabbitMQ or other message broker systems
• HTML, CSS, JavaScript (React or Vue desirable)
• Redis, APIs, Git, Bootstrap, SOLR (or equivalent)
• Experience with both modern and legacy systems

Candidate Profile

• Senior engineer with leadership experience
• Comfortable managing and mentoring developers
• Flexible and adaptable to work across projects and technologies
• Strong communicator and collaborator
• Motivated to improve processes and influence team culture

Package & Benefits

• Salary up to £70,000
• Hybrid working with project-based flexibility
• 25 days annual leave + bank holidays + birthday off + Christmas shutdown
• Pension scheme
• Discretionary bonus
• Private medical cover & Death in Service benefit
• Ongoing professional development and training support