Lead Software Engineer

Cierti; Greater London; Hybrid; GBP 110,000 - 160,000; Full time

Job summary

Cierti is seeking an exceptional Lead Engineer to shape enterprise systems and integrations from London. This hands-on leadership role focuses on architectural ownership while delivering scalable backend platforms, AI-enabled tooling, and modern integrations.

You will mentor engineers across Python and .NET, set standards, and drive CI/CD excellence. You will collaborate with Product, QA and stakeholders to translate requirements into robust solutions, balancing delivery with long-term strategy

Qualifications

• Proven experience in a Lead Engineer, Principal Engineer or Senior Engineering role.
• Deep hands-on expertise in Python and/or .NET.
• Strong background in backend engineering, APIs, integrations and event-driven architectures.
• Experience designing and building solutions across ERP platforms, ideally Dynamics 365.
• Strong SQL and data modelling expertise.
• Cloud experience across AWS and/or Azure.
• Practical DevOps knowledge including CI/CD and Infrastructure as Code.
• Ability to balance short-term delivery with long-term architectural strategy.
• Experience using modern AI coding tools to enhance software development.

Responsibilities

• Leading the design and development of backend services and integration platforms.
• Owning architecture across Microsoft Dynamics 365, internal systems, and third-party SaaS applications.
• Writing production-grade code and setting engineering standards.
• Mentoring and supporting engineers across Python and .NET ecosystems.
• Driving best practice across code quality, testing, CI/CD and technical delivery.
• Working closely with Product, QA and business stakeholders to translate requirements into scalable solutions.
• Championing the practical and responsible use of AI development tools to improve engineering velocity and quality.
• Making key architectural decisions that support business growth and operational excellence.

Skills

Leadership

Architectural ownership

Python

.NET

C#

Backend engineering

APIs

Integrations

AI development

SQL

Data modelling

Cloud computing

DevOps

AI tooling

Tools

AWS

Azure

CI/CD

Infrastructure as Code

Microsoft Dynamics 365

Job description

Lead . Net software Engineer – Python, .NET, C#, Backend, Integrations & AI-Driven Development

London Hybrid 1 day per week office

We're looking for an exceptional Lead Engineer to join a forward-thinking technology team and play a pivotal role in shaping the future of enterprise systems, integrations, and software delivery.

This is a hands-on leadership role where you'll combine deep technical expertise with architectural ownership, helping to build scalable platforms, modern integrations, and high-quality engineering practices. You'll remain close to the code whilst influencing technical direction across the business.

What You'll Be Doing

• Leading the design and development of backend services and integration platforms
• Owning architecture across Microsoft Dynamics 365, internal systems, and third-party SaaS applications
• Writing production-grade code and setting engineering standards
• Mentoring and supporting engineers across Python and .NET ecosystems
• Driving best practice across code quality, testing, CI/CD and technical delivery
• Working closely with Product, QA and business stakeholders to translate requirements into scalable solutions
• Championing the practical and responsible use of AI development tools to improve engineering velocity and quality
• Making key architectural decisions that support business growth and operational excellence
• Proven experience in a Lead Engineer, Principal Engineer or Senior Engineering role
• Deep hands-on expertise in Python and/or .NET
• Strong background in backend engineering, APIs, integrations and event-driven architectures
• Experience designing and building solutions across ERP platforms, ideally Dynamics 365
• Strong SQL and data modelling expertise
• Cloud experience across AWS and/or Azure
• Practical DevOps knowledge including CI/CD and Infrastructure as Code
• Ability to balance short-term delivery with long-term architectural strategy
• Experience using modern AI coding tools to enhance software development