About Numeral
Numeral is a payment technology provider that enables fintechs, payment services providers, and banks to launch new products, expand geographically, comply with payment regulations, and scale their operations with Numeral's cloud-native, API-first payments platform.
We develop and run direct integrations with a network of 30+ partner banks (including BNP Paribas, Barclays, Citi, HSBC, Banking Circle, LHV…) that can all be accessed through a single API, webhooks, and dashboard.
Customers include leading and up-and-coming fintechs like Spendesk, Swile, Alma, WorldFirst, Argentex, Deblock, and 20+ others. We have processed more than 4m payments since our first payment in 2023 and will process more than 10m payments over the next 12 months.
Founded in July 2021, Numeral has been acquired by leading core banking system provider Mambu in December 2024. Mambu’s composable core banking system complements Numeral’s API-first payments platform perfectly. Together, we are poised for hyper-growth, serving both Mambu and non-Mambu customers globally, challenging industry giants like FIS, Bottomline, and Volante, and delivering an even greater impact across our ecosystem.
This acquisition marks an exciting new chapter for Numeral. To support this growth, we are hiring across teams to scale our organisation and continue delivering exceptional customer value.
Learn more about Numeral and Mambu:
Our technology stack
Our technology stack is built on a robust microservices architecture, leveraging domain-driven design (DDD) principles and an hexagonal approach to ensure flexibility, scalability, and clear separation of concerns. We prioritize simplicity, maintainability, and adherence to industry best practices, with test-driven development (TDD) at the core of our engineering philosophy.
Our development process is deeply rooted in lean and agile methodologies, fostering a culture of continuous improvement and problem-solving. We embrace an iterative approach, delivering incremental value through frequent releases and short feedback loops.
Backend
• Programming language: Golang
• Messaging: Kafka (AWS MSK)
• Databases: AWS DynamoDB, AWS Aurora PostgreSQL, and AWS RDS
• Caching and In-Memory Data Store: AWS MemoryDB (Redis)
• Search and Analytics Platform: AWS OpenSearch
• Serverless Computing: AWS Lambda
Infrastructure
• Cloud provider: AWS Cloud
• Orchestration: Kubernetes (AWS EKS)
• Infrastructure as code: Terraform
• Monitoring and logging: CloudWatch, Prometheus, Grafana, Datadog…
• CI / CD: GitLab
Frontend
• Programming Language: TypeScript
• Framework: ReactJS
• UI library: Chakra UI
The role
We are hiring Backend Software Engineers across all teams and seniorities. You will join a product and engineering organisation of 20+ people, with 15 more people joining in 2025.
