Senior Backend Developer

Noda; City Of London; Remote; GBP 70,000 - 90,000; Full time

Job summary

A fintech company based in London is seeking a Senior Backend Developer to innovate in payment solutions. You will develop and optimize payment services, design databases, and maintain CI/CD pipelines. Required skills include C#, SQL, and experience with RabbitMQ. The role offers a remote work setup, training opportunities, and a collaborative team environment.

Benefits

Remote-first setup

Training and certification coverage

Flexible work times

Office equipment budget

Generous time off

Qualifications

• 3 years of experience in C# and Core (.NET 6).
• Experience designing microservices and high-load systems.
• Understanding of gRPC and HTTP integrations.

Responsibilities

• Develop and maintain payment services.
• Design and optimize databases and schemas.
• Participate in code reviews and technical design.

Skills

C#

Core (.NET 6)

SQL skills

RabbitMQ

MS SQL Server

MongoDB

Fluent Russian

Fluent English

Tools

Docker

Azure

Azure Kubernetes Service

TeamCity

Azure Cosmos DB

Job description

Hey there future changemaker!

At Noda were building seamless Open Banking solutions that make payments smarter faster and safer . Were now looking for a Senior Backend Developer to join our team and help drive the next wave of fintech innovation.

Your mission :

• Develop and maintain payment services.
• Develop intelligent payment routing (based on reinforcement learning Q-learning).
• Develop and maintain the anti-fraud system.
• Design and optimize databases (MS SQL Server MongoDB; when needed Azure Cosmos DB Azure Data Explorer) : schemas migrations indexes.
• Implement resilient integrations and asynchronous workflows : idempotency outbox / inbox patterns sagas retries deduplication.
• Configure inter-service communication (HTTP gRPC) and messaging (RabbitMQ MassTransit).
• Meet performance and reliability targets (p95 / p99 latency throughput SLA / SLO); set up monitoring and alerting.
• Participate in code reviews and technical design.
• Maintain CI / CD pipelines (TeamCity Octopus); manage configurations and secrets.

Your skills and experience :

• 3 years of experience in C# and Core an open-source web development Core (.NET 6).
• Experience designing microservices and high-load systems.
• Strong SQL skills : transactions indexes query optimization and profiling.
• Hands-on experience with AMQP brokers (RabbitMQ) and MassTransit; understanding of delivery guarantees.
• Practical use of idempotency data consistency outbox / inbox patterns and sagas.
• Experience with MS SQL Server and MongoDB; basic skills with Azure Cosmos DB and ADX are a plus.
• Understanding of gRPC and HTTP integrations contract versioning.
• Experience setting up CI / CD (TeamCity Octopus) managing secrets and service-to-service access.
• Ability to write maintainable code add tests and conduct code reviews.
• Fluent Russian.
• Fluent English.

Tech Stack

Azure; .NET; MS SQL Server; Docker; AKS (Azure Kubernetes Service); RabbitMQ; TeamCity; Azure Cosmos DB.

What we offer :

• Your office your rules : remote-first setup with full flexibility - work from home one of our offices a café or while exploring new places. Wherever you feel most productive thats your office.
• Keep growing : your growth is our priority. We cover trainings courses and certifications so you can sharpen your skills and stay ahead in your field.
• Strong connections : distance doesnt stop us from building great bonds. From virtual hangouts and creative online sessions to local meet‑ups and company‑wide events youll always feel part of the team.
• All the gear you need : we provide the hardware you need and a budget for your home office setup making sure youve got the perfect tools to succeed.
• Time to recharge : we value balance just as much as results. Thats why we offer plenty of time off to rest reset and come back energised.

What happens once you apply :

• Your CV will undergo careful review and well quickly update you on the next step in our recruitment journey.
• Get ready for an easy‑going introduction call with our recruiter where youll delve into the heart of our company product and team dynamics while sharing your own experiences and aspirations.
• Should the vibe match and your expectations align up next will be code review and engaging interviews with our Senior Backend Developer and the CPO .
• And if everything clicks anticipate a thrilling job offer landing in your inbox soon!

We do our best to close interview rounds within 3 week s although sometimes it might take slightly longer.

Send your application our way we look forward to meeting you!