Software Engineer - Fullstack Developer

ABOUT THE TEAM & SYSTEM You'll join the team that owns our Collection System — the core debt-collection platform for the organization. It aggregates and orchestrates collection activity for hundreds of concurrent collection agents, powering everything from overdue-account assignment to ML-driven collector routing and fine-grained, hierarchy-based data permissioning. We're currently leading a foundational, long-term rebuild of this platform — not a quick-win project. The goal is to modernize the system's architecture, scalability, testability, and security posture to support the company's collection ecosystem for years to come, moving off a legacy foundation and onto a modern, modular, cloud-native stack. WHAT YOU'LL DO Design, build, and maintain features across the Collection System full stack — frontend, backend, and the data layer. Build for high performance and reliability: the platform handles 100,000+ transactions per day with near real-time data synchronization across services. Apply clean architecture and SOLID principles, using Domain-Driven Design (DDD) and Event-Driven Design (EDD) patterns to keep the system modular, testable, and extensible as it scales. Contribute to the platform's next-generation rebuild — replacing legacy, tightly-coupled logic with well-tested, framework-supported modules. Write automated tests (unit, integration, and end-to-end) as a first-class part of delivery, not an afterthought. Work within our DevSecOps pipeline — containerized deployments, infrastructure as code, and security/dependency scanning built into every merge. Own what you ship end-to-end — provide production support on a business-hours shift rotation, investigate and resolve incidents, and improve reliability and observability so issues are caught before they reach agents. Collaborate closely with product, QA, and the operations team in an Agile delivery model. TECH STACK Core (minimum requirements) Languages: TypeScript (required); Python or Ruby (Rails) experience a strong plus Frontend: Vue.js or Next.js, written in TypeScript Backend: Node.js (TypeScript) — NestJS experience preferred Databases: MongoDB and MySQL Cloud & DevSecOps AWS as the primary cloud platform, with a cloud-native approach to architecture Containerization with Docker; deployment on ECS and EKS (Kubernetes) CI/CD via GitHub Actions Infrastructure as Code with Terraform / Terragrunt Testing Unit & integration testing (Jest) End-to-end testing (Cypress or Playwright) WHAT WE'RE LOOKING FOR Solid fundamentals in TypeScript and modern web application development. Understanding of, or genuine interest in, clean code, clean architecture, SOLID principles, and Domain-Driven / Event-Driven Design — we'll help you deepen this on the job. Comfort with relational and document databases (MongoDB, MySQL) and working knowledge of container-based deployment (Docker, Kubernetes). A quality mindset: you…