• Design, build, and maintain backend services that power Monstro’s consumer experience • Work across our stack (Python, Node.js, and Java), selecting the right tool for each problem • Build robust APIs serving mobile and web clients while integrating with financial institutions and third-party services • Architect systems that scale gracefully as our user base grows • Identify bottlenecks and implement caching strategies (Redis, CDN, application-level caching) • Optimize query performance and tune container-based applications • Design for resilience with failover strategies, retry logic, and graceful degradation • Containerize and orchestrate services using Docker and Kubernetes • Collaborate with platform teams on infrastructure decisions • Contribute to CI/CD pipelines and ensure smooth, reliable deployments • Understand and work across the full SDLC, from local development through production observability • Work with relational and NoSQL databases, partnering with data engineers on schema and data models • Build integrations with banking systems, payment processors, and financial data providers • Implement event-driven architectures and message queues where appropriate • Build systems with security as a first-class concern, including authentication, authorization, encryption, and audit logging • Ensure systems meet fintech regulatory and compliance requirements • Guide and develop junior and mid-level engineers through code reviews, pairing sessions, and technical coaching • Partner closely with frontend engineers, product managers, and designers to deliver cohesive features • Participate in architectural discussions and incident response, contributing to a culture of continuous learning and technical excellence.