Mid C#/.Net Engineer

Flagstone; Greater London; Hybrid; GBP 60,000 - 80,000; Full time

Job summary

A leading fintech company in Greater London is seeking a Back End Engineer to join their Agile team. You will be responsible for developing high-quality cloud-based systems primarily using C# on Azure. The ideal candidate will have over 3 years' experience in commercial development and a good grasp of modern software design principles. This role includes collaboration across teams to solve business challenges and a focus on continuous personal development and well-being support.

Benefits

Competitive bonus scheme

Flexible benefits budget

Salary sacrifice options

Around the World scheme

Mental wellbeing support

Learning and development budget

Private health care

Medical cash plan

Life insurance and Income Protection

Matched pension contributions

25 days holiday plus additional leave

Enhanced Parental Leave

Qualifications

• 3+ years commercial development experience with C# / .Net / .Net Core.
• Good understanding of SOLID principles and design patterns.
• Experience with Azure cloud services and RESTful APIs.

Responsibilities

• Participate in Agile software development and collaborate on new features.
• Develop and maintain systems for the cloud on Azure.
• Work on delivering high-quality, resilient product.

Skills

C# / .Net / .Net Core

SOLID principles

Event Driven Architecture (EDA)

Domain-Driven Design (DDD)

RESTful API design

Azure cloud development

SQL

Test-Driven Development (TDD)

Emotional intelligence

Excellent verbal and written communication

Job description

What is Flagstone?

Flagstone is many things. An online savings platform, reinventing how individuals, businesses, and charities manage, protect, and grow their cash. A diverse group of people, bound by a collaborative spirit, and shared purpose. And lastly, a thriving, profitable business – where smart people do their best work.

Each definition shares a common thread: our unique culture. It’s our pride and joy. And our competitive advantage.

A feel for our culture:

To revolutionise the savings market, we need to be at our best. But high performance takes more than talent – it takes a culture of kindness, respect, and growth.

That’s why we’re building a diverse, inclusive community, where your voice is heard and valued. Where, with close support and room to develop, you can surpass even your own expectations. And be rewarded for it.

We may not change the world, but can change the world of financial technology. And all it takes is a winning mix of drive, talent, and empathy. Our culture celebrates all three.

But enough about us. Let’s talk about you.

Does this sound like you?

You’re a Back End Engineer, ideally with 3+ years’ experience, who’s excited to forge a new way to save. You’re all about producing and maintaining high quality systems to achieve business objectives, and making contributions to the development process, as well having an understanding of system design and architecture. You’ll want to work in partnership with relevant teams across an organisation to identify how technology can solve business challenges and will be capable of answering “how and why” technology is designed and delivered.

What you’ll do:

We are a Microsoft shop, so our core language is C# and our platform is entirely in the cloud on Azure where we use a variety of PaaS type services including Web Apps, Functions, Azure SQL, Cosmos, Azure Service Bus, AppInsights, APIM etc.

As a Back End Engineer, you will play an active role in an Agile software team, working collaboratively to work on new features and delivering a high quality, resilient product.

What you’ll bring:

• Ideally over 3 years commercial development experience with C# / .Net / .Net Core
• A good understanding of SOLID principles, Event Driven Architecture (EDA) and Domain-Driven Design (DDD)
• Experience of RESTful API design
• Experience of Azure cloud development, and a cloud-first approach
• SQL skills
• A good foundation in testing strategies or Test-Driven Development (TDD) methodologies
• Emotional intelligence. You actively listen and provide thoughtful solutions
• Proactivity and the ability to demonstrate initiative positively and collaboratively
• Excellent verbal and written communication, with the ability to communicate technical information to both technical and non-technical stakeholders

How we reward you:

At Flagstone, the benefits extend beyond false gifts like “fruit and snacks”. Instead, we invest in your health, wealth, and professional development. Here’s a selection of our benefits:

• Competitive bonus scheme - designed to reward and recognise high performance
• Flexible benefits budget - a pot to fund meaningful benefits for you, whether it's hormone or fertility testing, cancer screening, neuro-diversity coaching or something that matters for you.
• A range of salary sacrifice options to help you make tax efficient savings on electric cars, nursery schemes, home and tech goods.
• Around the World scheme - 3 months work from anywhere scheme
• Mental wellbeing support – Access therapy and mental health sessions through Spill
• Learning and development – £1,000 personal development budget to help you grow in your role.
• Private health care - Enjoy all the benefits AXA has to offer, including reduced gym memberships and medical history disregarded
• Medical cash plan - To help you with the costs of dental and optical expenses
• Life insurance and Income Protection- four times your annual salary for peace of mind
• Matched pension contributions up to 5%
• 25 days holiday - plus bank holidays, well-being days and volunteering days
• Enhanced Parental Leave – enhanced maternity, paternity and adoption pay.

All are welcome.

At Flagstone, we’re assembling a diverse team that defies our industry’s norms. Think this role could suit you? We encourage you to apply, no matter your background.

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