Application Architect (hands on)

Gallagher; Bristol; Hybrid; GBP 60,000 - 80,000; Full time

Job summary

A leading benefit services firm in the UK is seeking a Technical Application Architect to design and deliver high-performing software solutions. This hybrid role requires a strong C# .NET background, with a 50/50 focus on hands-on development and strategic transformation. Key skills include expertise in AWS and Azure, alongside experience in microservices and collaboration with stakeholders. Competitive salary and comprehensive benefits offered in a supportive environment that values diversity.

Benefits

Minimum of 25 days holiday

Defined contribution pension scheme

Life insurance

Health cash plan or Private medical insurance

Employee Stock Purchase plan

Qualifications

• Expertise in designing and delivering software solutions using C# .NET.
• Proven experience with AWS, particularly Lambdas and RDS.
• Experience leading discussions with stakeholders on technical designs.

Responsibilities

• Architect and implement cloud-native solutions.
• Lead the design discussions and create POCs.
• Guide the engineering teams for successful project delivery.

Skills

C# .NET

Microservices

AWS

Azure

DevOps practices

Education

Degree in Computer Science or a related field

Tools

PostgreSQL

SQL Server

React

Angular

Kubernetes

Job description

Introduction

At Gallagher Benefit Services, you’re a trusted partner to organizations navigating some of their most important people decisions. We help clients build better workplaces, where people feel supported, empowered, and inspired to thrive. Whether it’s shaping benefit strategies, designing wellbeing programs, or advising on workforce challenges, the work you do here creates meaningful change for businesses and the people who power them. We’re a community of bold explorers, trusted experts, and compassionate partners; working side by side to solve problems, and shape the future of work. Here, curiosity is encouraged, collaboration is second nature, and your ideas have room to grow. If you’re looking for a place where your contribution matters and where you can help build a better world of work; think of Gallagher.

Overview

New year, New Job!

Join a dynamic and experienced, agile development team building innovative internal and client-facing applications, from data analytics platforms to interactive investment tools. We deliver impact, not just code, and invest in continuous learning with dedicated L&D days every sprint.

We’re looking for a hands‑on Technical Application Architect with a strong C# .NET background to own the design and delivery of scalable, secure, and high‑performing software solutions.

This role involves working closely with senior management, stakeholders, senior developers and subject matter experts to identify business needs and communicate the architectural vision.

This hybrid role blends technical leadership and business engagement, with a unique 50/50 split between hands‑on development and strategic transformation.

How you’ll make an impact

• Architect and implement cloud‑native solutions using AWS and Azure
• Lead technical design discussions, POCs, and documentation
• Collaborate with stakeholders to shape strategy and deliver pragmatic solutions
• Guide engineering teams and influence technical direction
• Stay ahead of emerging tech and drive adoption across the team
• Represent the development team in wider integration and transformation initiatives (some coding in C#.NET / .NET Core will be involved)

About You

• Expertise in C# .NET, Microservices, DDD, Event Sourcing, CQRS
• Strong experience with AWS (Lambdas, RDS, Cognito), SQL (PostgreSQL/SQL Server)
• Consistent track record to connect with technical and non‑technical stakeholders
• Familiarity with DevOps practices and tools
• A proactive, professional point of view, with a passion for clean architecture

Bonus Skills

• Degree or equivalent experience in Computer Science or a related field is preferred
• Experience with Azure, MongoDB, React/Angular, Kubernetes, Octopus Deploy
• Background in business analysis or change leadership

If you’re a strategic thinker with a hands‑on mindset and a love for sophisticated solutions, we’d love to hear from you.

At Gallagher, we’re not just about insurance and risk management; we’re about creating a workplace where innovation meets inspiration. So, if you’re ready to bring your unique spark to a company that values individuality and thrives on collaboration, we can’t wait to meet you.

What We Offer

At Gallagher, we’re proud to foster an open‑minded and encouraging workplace where everyone can thrive. We value outstanding problem‑solving styles and encourage individuality.

• Supportive, purposeful culture.
• Career development and progression opportunities
• Flexible working, this role is hybrid, with ideally once every two weeks to our London office
• Excellent salary and benefits
• Applicants must be eligible to work in the UK

Compensation and benefits

On top of a competitive salary, great teams and exciting career opportunities, we also offer a wide range of benefits.

Below are the minimum core benefits you’ll get, depending on your job level these benefits may improve:

• Minimum of 25 days holiday, plus bank holidays, and the option to ‘buy’ extra days
• Defined contribution pension scheme, which Gallagher will also contribute to
• Life insurance, which will pay 4x your basic annual salary, which you can top‑up to 10x
• Income protection, we’ll cover up to 50% of your annual income, with options to top up
• Health cash plan or Private medical insurance

Other benefits include:

• Three fully paid volunteering days per year
• Employee Stock Purchase plan, offering company shares at a discount
• Share incentive plan, HMRC approved, tax effective, stock purchase plan
• Critical illness cover
• Discounted gym membership, with over 3,000 gyms nationally
• Season ticket loan
• Access to a discounted voucher portal to save money on your weekly shop or next big purchase
• Emergency back‑up family care
• And many more…

We value inclusion and diversity

Inclusion and diversity (I&D) is a core part of our business, and it’s embedded into the fabric of our organisation. For more than 95 years, Gallagher has led with a commitment to sustainability and to support the communities where we live and work.

Gallagher embraces our employees’ diverse identities, experiences and talents, allowing us to better serve our clients and communities. We see inclusion as a conscious commitment and diversity as a vital strength. By embracing diversity in all its forms, we live out The Gallagher Way to its fullest.

Gallagher is Disability Confident Committed. We have pledged to make sure our recruitment process is inclusive and accessible, in addition to supporting our existing employees with any long‑term health conditions or disabilities.

We understand that applicants may have disabilities, if you do, you may find some parts of the recruitment process more challenging than others. Don’t worry, we’re here to help, however, we can only do this if you let us know.

Should you require reasonable adjustments to your application, please get in touch with [e-mail]. If you’d prefer to speak on the phone, please request a call back, leaving details, so we get in touch.

Our employing entity, Arthur J. Gallagher Services (UK) Limited, is proud to be accredited as a Living Wage employer with the Living Wage Foundation. We are committed to diversity and opportunity for all and are opposed to any form of less favourable treatment on the grounds of gender or gender identity, marital status, civil partnership status, parental status, race, ethnicity, colour, nationality, disability, sexual orientation, religion/ belief, age and those with caring responsibilities.

Gallagher believes that all persons are entitled to equal employment opportunity and prohibits any form of discrimination by its managers, employees, vendors or customers based on race, color, religion, creed, gender (including pregnancy status), sexual orientation, gender identity (which includes transgender and other gender non‑conforming individuals), gender expression, hair expression, marital status, parental status, age, national origin, ancestry, disability, medical condition, genetic information, veteran or military status, citizenship status, or any other characteristic protected (herein referred to as “protected characteristics”) by applicable federal, state, or local laws.

Equal employment opportunity will be extended in all aspects of the employer‑employee relationship, including, but not limited to, recruitment, hiring, training, promotion, transfer, demotion, compensation, benefits, layoff, and termination. In addition, Gallagher will make reasonable accommodations to known physical or mental limitations of an otherwise qualified person with a disability, unless the accommodation would impose an undue hardship on the operation of our business.