Backend Software Engineer

delivery process ~ Applying security by design principles to public and internal APIs ~ Solving architectural and technical challenges to reduce complexity while creating value for customers and users ~ Mentoring and upskilling junior and mid-level engineers through code reviews, pair programming, and technical guidance ~ Defining and executing Numeral’s technical roadmap to improve team velocity and control technical debt ~ Acting as a technical reference and escalation point for critical incidents and high-stakes production issues. ~5+ years of professional software engineering experience, with significant hands-on experience in Golang ~ Background in fintech, banking, or payments (SEPA, Swift, Ebics…), with an understanding of the regulatory and operational constraints of the industry ~ Proven track record designing and owning complex, distributed backend systems in production ~ Deep experience with relational databases and SQL, including high-concurrency environments

transaction management, and isolation levels at scale ~ Strong understanding of the challenges of running a high-volume SaaS platform at scale, with a track record of producing quality, maintainable, well-documented code that respects best practices ~ Advanced API design skills, with a strong focus on security, versioning, and documentation ~ Demonstrated ability to mentor engineers and elevate team-wide engineering standards ~ You are curious, interested in business understanding and product oriented ~ You are highly autonomous, proactive, and comfortable driving ambiguous technical problems to resolution Nice-to-have skills DevOps appetite - you have been in involved in implementing / using CI using Gitlab and Kubernetes Cloud hosting with AWS and experience with EC2, S3, EKS, RDS… Familiar with Kafka or similar message broker middlewares J-18808-Ljbffr

Join the fintech revolution with Mambu, the leading SaaS cloud banking platform. We’re on a mission to make banking better for a billion people. We’re engineering the future of financial services with AI at its core. At Mambu, AI isn’t a feature - it’s how we’re rebuilding banking from the ground up. If you’re ready to apply cutting-edge technology to problems that affect millions of people, your next chapter starts here. Learn more here . We are hiring Senior Backend Software Engineers across all teams. As a Senior Backend Software Engineer, you will be responsible for: ~ Developing bank connectivity and payment automation products, features, and capabilities, with a focus on security, stability, and performance ~ Owning architectural decisions for complex, high-impact projects and driving technical direction across teams ~ Collaborating with Product Managers and DevOps Software Engineers to maintain a fast-paced, iterative, and continuously improved product development and