Lead Development Engineer

Lane Clark & Peacock LLP.; Greater London; Hybrid; GBP 90,000 - 120,000; Full time

Benefits offered by this job

Hybrid working

Professional study support

Wellbeing networks

Life assurance

Income protection

Enhanced parental leave

Private medical insurance

Cycle to work scheme

Discretionary bonus

Job summary

Lane Clark & Peacock LLP is seeking a Lead Development Engineer to act as a hands‑on technical partner to delivery teams, shaping architecture and implementing high‑impact components. The role involves evolving SDLC practices for AI‑enabled development while maintaining quality and security controls.

You will mentor developers, contribute to central products, and collaborate with Platform and Infrastructure teams to ensure secure, operable production systems. Hybrid working available.

Qualifications

• Proven experience in C# / .NET development.
• Experience building AI/LLM powered solutions is advantageous.
• Ability to architect pragmatic, well‑reasoned software solutions.
• Strong collaboration with product and business stakeholders.

Responsibilities

• Collaborate with product delivery teams to develop architecture recommendations and provide implementation support.

Skills

C# / .NET

Generative AI / LLM

Agentic coding tools

Software architecture

Stakeholder collaboration

Upskilling quickly

IaC Terraform

Data/AI know‑how

Effective communication

pragmatic development mindset

Tools

CosmosDB

Table Storage

Terraform

Job description

LCP is a leading analytics and actuarial consultancy, combining deep sector expertise with technology, data and innovation to help a diverse client base make more informed decisions.

Technology is increasingly central to how LCP operates, both through the products we provide to clients and the digital services, platforms, and applications that support our people. Digital Services brings together the capabilities required to develop, operate and continually improve these products and services in a secure, scalable and user-focused way.

One of our key goals is to foster a robust engineering culture that supports the growth of LCP and the success of our product development teams. We support this through practical technical leadership: championing proportionate engineering best practices, providing hands‑on input where it will have most impact, and trusted architectural advice where teams need to explore options, resolve uncertainty and define a clear path forward.

As Lead Development Engineer, you will work in an as a hands-on technical partner to delivery teams, across codebases of varying maturity levels and technical constraints. Depending on the need, you may help a team assess options and shape an architecture before they take delivery forward themselves or work alongside them to design and implement complex or high-impact elements. You will also contribute to the development of central products, services and components.

AI is changing how we build software, and you will contribute to the evolution of our engineering practices. You will bring curiosity, sound judgement and a pragmatic mindset: learning unfamiliar technologies quickly and applying the right level of rigour for the context. This means improving existing solutions incrementally where appropriate, while establishing strong foundations for new work, favouring simple, sustainable solutions over unnecessary complexity or short-term shortcuts.

What will you be doing?

• Collaborate with product delivery teams, embedding where appropriate, to develop technical architecture recommendations and implementation support
• Identify opportunities to simplify, standardise or consolidate solutions into reusable components and services
• Help drive the evolution of SDLC practices for AI-enabled development, to reduce friction while maintaining quality and sustainable delivery
• Champion proportionate engineering practices, including automated testing, CI/CD, coding standards, observability, technical debt management and maintainable code
• Contribute hands‑on to the design and development of shared packages and services
• Work with Platform and Infrastructure teams to ensure solutions are secure, compliant, operable and supported in production
• Champion the responsible, effective use of AI-enabled tools and practices responsibly to realise productivity gains while maintaining quality and security controls
• Research and prototype emerging technologies when there is a clear delivery or strategic benefit
• Mentor developers, share knowledge across teams and act as an approachable technical authority
• Communicate clearly with Product Owners and other stakeholders, translating business needs into practical technical options and trade-offs
• Build strong relationships with product teams and proactively represent their needs as part of quarterly planning

What skills and experience are we looking for?

• Strong and demonstrable experience and knowledge of
• oC# / .NET
• oNon-relational databases (CosmosDB, Table Storage)
• Knowledge of building Generative AI / LLM powered solutions would be advantageous (OpenAI, Azure AI Foundry, AWS Bedrock, Google Vertex)
• Knowledge of effective use of agentic coding tools and techniques
• Ability to clearly articulate software engineering and technology concepts
• Ability to architect well‑reasoned solutions with pragmatism
• Ability to collaborate effectively with technical and business stakeholders to interpret needs
• Comfortable rapidly upskilling in unfamiliar technologies
• Proactive, logical problem‑solver who leads by example
• Knowledge of IaC (Terraform)
• Strong planning and organisational skills, including the ability to manage several work streams simultaneously, while balancing business priorities and quality
• Excellent communication skills with a capacity to present, discuss and explain issues coherently and logically, both in writing and orally
• Pragmatic – able to balance pros and cons to find the right solution for the right situation, with an iterative development mindset
• Approachable and focused on building solid relationships across multiple teams and areas of the business

What’s in it for you?

Take a look at our Glassdoor and Career stories pages to see why our people love being here! As well as joining a certified B-Corp, multi-award winning, fun, collaborative, people first organisation where your personal and professional skills will be developed to make you the best you can be, we offer an attractive benefits package designed to promote your overall wellbeing so that you are able to perform to your full potential both in and out of work. Currently our core benefits package includes:

For you:

• Hybrid working (see top of the advert for details)
• Professional study support (where applicable)
• Access to our internal Wellbeing, LGBTQ+, Multicultural and Women’s networks

For your family:

• Life assurance
• Income protection
• Enhanced maternity/paternity/adoption and shared parental leave

For your health:

• 26 days annual leave (pro-rata for part-time working) plus bank holidays (most of which can be taken flexibly!) with options to buy & sell holiday
• Private medical insurance
• Discounted gym memberships, critical illness and dental insurance through our flexible benefits
• Cycle to work scheme
• Digital GP services

For your wealth:

• Discretionary bonus scheme
• Season ticket loans

For others:

• Volunteering opportunities

For the environment:

• Electric vehicle salary sacrifice scheme (qualifying period applies)

And much more!

We continuously strive to build an inclusive workplace where all forms of diversity are valued, including age, background, disability, gender, gender identity, gender expression, race, religion or sexual orientation.

LCP is committed to making our opportunities accessible to all and would welcome you getting in touch to let us know if an adjustment can be made to help with your application. This may be extra time for assessments, pre-interview site visits, interview structure or questions, or asking us about building accessibility. Whatever it may be, please get in touch via our dedicated email address - [e-mail] to discuss how we can support you with your application.

Recruitment agencies

LCP operates a Preferred Supplier List (PSL) for recruitment agencies which is reviewed annually. We do not accept unsolicited CVs from agencies who are not part of our currentPSL. LCP only pay agency fees where we have a signed agreement in place, and the agency has been instructed by a member of our recruitment team to supply CVs via the Applicant Tracking System (ATS) for a legitimate, open vacancy. If this process is not adhered to, LCP reserve the right to contact these candidates directly and have discussions with them without paying any agency fees. We do not pay agency fees when speculative and unsolicited CVs are submitted to any employee or Partner at LCP.