Backend Engineer - Rapid -growth FinTech / SaaS - London / Hybrid -up to £70k (DoE)
We have an incredible opportunity for skilled, passionate and experienced Backend Engineers, with production experience with languages such as Node.js, Express, Python; familiarity with AWS (e.g. ECS/EKS, Lambda, SQS, EventBridge, RDS/DynamoDB, S3) and experience designing RESTful and event-driven APIs, to join a fantastic FinTech / SaaS on a hybrid working basis as soon as possible.
The Opportunity:
This is the perfect opportunity to join a successful FinTech SaaS, in a crucial role that is critical to the product’s success and the company’s future.
The Backend Engineer will need to have a passion for performance, a growth mindset and the drive to continuously learn, develop and improve. Our client encourages a learning culture and they embrace cutting-edge technology which will allow you to hone relevant, in-demand skills.
They are a rapidly scaling company, so this is a prime opportunity to get your foot in the door and join a dynamic, high-performance team on an exciting trajectory!
Our client is offering an annual salary up to £70k, dependent on experience and skillset.
What we’re looking for:
- Graduate with a relevant degree in Computer Science / Engineering or similar, with c1+ years’ relevant work experience, ideally within FinTech, TMS or SaaS (including internships)
- Proven production experience building and operating backend services (e.g. Node.js/Express, Python), with a technology-agnostic mindset and the ability to adapt to evolving stacks
- Familiarity with AWS (i.e. ECS/EKS, Lambda, SQS, EventBridge, RDS/DynamoDB, S3)
- Experience designing RESTful and event-driven APIs
- Relational data modelling skills (financial or transactional systems advantageous)
- Experience with concurrency, locking, idempotency and distributed consistency
- Experience with message queues, background workers and workflow orchestration
- Experience integrating AI/ML or decisioning services into backend platforms
- Comfortable building systems that consume AI outputs and execute deterministic actions
- Ability to design safety, audit and rollback mechanisms around automated executionUnderstanding of the role context plays in designing a modern AI-native system
- Hands-on experience deploying and operating Node.js services on AWS
- Experience with CI/CD, infrastructure-as-code and containerised workloads
- Drive to improve as an Engineer - eager to work with peers who push and support each other to continuously improve
- Strong communication skills and the ability to liaise at all levels
- Collaborative nature - ability to work independently and as part of a team
- Ability and desire to work in a fast-paced, rapid-growth environment
- Highly ambitious, driven and focused
Interested in this fantastic Backend Engineer opportunity?
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Backend Engineer - FinTech / SaaS in London employer: Carousel Consultancy Ltd
Join an exceptional organisation in the heart of Central London, where your ambition and talent will be recognised and rewarded. As a Centre Manager, you will thrive in a vibrant work culture that prioritises professional development and offers unique opportunities to lead and inspire teams while delivering award-winning client services. With a focus on creating fabulous in-house events and maintaining high operational standards, this role promises a fulfilling career in a prestigious environment.
