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Houseful

Software Engineer (C#)

Hybrid

London, United kingdom

Senior

Full Time

17-11-2025

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Skills

C# TypeScript AWS Lambda Architecture react AWS .NET Terraform Infrastructure as Code Microservices

Job Specifications

Hybrid - 2 days per week in our London HQ

Alto Software Group is a B2B SaaS company that powers more than half of all UK housing transactions each year. We create software solutions that connect businesses and consumers, delivering a one-stop shop for estate agents and home builders. Our goal is to drive efficiency, speed up transactions, reduce risk, and improve the end-customer experience.

While we're not a startup, we operate with a startup mindset. We're looking for people who share this mentality and are ready to tackle big ambitions. This is a fast-growing and exciting business going through significant change, and there's never been a better time to join us.

We're looking for a passionate Software Engineer to join the Alto Team.

What You'll Do

Develop and maintain critical backend services using C# and .NET
Work with serverless technologies like AWS Lambda, SQS, Eventbridge and DocumentDB to build scalable, event-driven architectures
Take ownership of your work from design to deployment, either independently or as part of a collaborative team
Collaborate with product and design teams to translate complex business problems into elegant, customer-focused solutions
Help us shape our engineering practices and explore new ways of working (e.g Shape Up methodology) to deliver value to our customers in a fast, predictable way
Contribute to our modern microservices and event-driven architecture, ensuring our platform is resilient and performant

Our Technology Stack

We believe in using the right tool for the job. Our current stack includes:

Backend: C#, TypeScript, .NET, SQLServer
Frontend: TypeScript, React
Cloud & Infrastructure: AWS (ECS, Lambda, SQS, DocumentDB, DynamoDB), Terraform, SST (Infrastructure as Code)
Architecture: Microservices, Micro-Frontends, Event-driven architecture

Who We're Looking For

A software engineer with a strong background in C# and experience in modern API development with .NET
Someone who is comfortable building distributed systems with asynchronous event-driven architecture
Knowledge of designing and implementing REST APIs, with experience in domain driven design
An understanding of cloud-native development practices and awareness of AWS ECS, S3 and SQS (or vendor equivalents)
Explore Boldy: We value engineers who are eager to learn new technologies and stay current with industry trends.
Bounce back Stronger: A pragmatic problem-solver who can navigate ambiguity and find simple solutions to complex challenges
Own it together: A collaborative team member who is willing to share early-stage work and both give and receive constructive feedback
Make it Happen: A person who takes pride in their delivery and is passionate about creating high-quality software at pace
Know our Customers: You're a product engineer who is genuinely interested in the customer's perspective. You strive to understand the purpose of your work so you can deliver the most impactful solutions

Don't worry if you don't check every box! We're looking for passionate engineers who are excited to grow. If you have a solid foundation in C# and .NET and are eager to learn, we encourage you to apply. We are committed to building a diverse and inclusive team and welcome applications from all backgrounds.

Benefits

Everyday Flex - greater flexibility over where and when you work
25 days annual leave + extra days for years of service
Day off for volunteering & Digital detox day
Festive Closure - business closed for period between Christmas and New Year
Cycle to work and electric car schemes
Free Calm App membership
Enhanced Parental leave
Fertility Treatment Financial Support
Group Income Protection and private medical insurance
Gym on-site in London
7.5% pension contribution by the company
Discretionary annual bonus up to 10% of base salary
Talent referral bonus up to £5K

We want to make ASG more welcoming, fair and representative every day. We'll consider everyone who applies for this role in the same way, regardless of your ethnicity, colour, national origin, religion, sexual orientation, gender, gender identity, age, physical disability, neurodiversity status, family or parental status, or how long you've spent unemployed.

About the Company

We've recently renamed our wider business to 'Houseful', which is why the name might be new to you. By doing so, we can now showcase the breadth of our brands and connected capabilities that are driving progress in the property industry. Houseful is the leader in residential property software, data and insight - owning and operating a family of trusted and established brands, including Zoopla, Hometrack, Prime Location, Mojo, Alto and Calcasa. It also means that when you work for one of our brands, you're part of somethin... Know more