SR Senior Node.js Engineer

Here at ília, our job openings are always open to everyone and are not restricted by gender, ethnicity, sexual orientation, social factors, physical or intellectual conditions (PwD), etc. We encourage applications from members of all minority groups We are specialists in technology, data, and design, driving the digital transformation of major market players for over 10 years, in the financial, insurance, and mobility sectors. With more than 450 professionals, we operate in Brazil and Europe, serving the Latin American, European, and North American markets, developing high-quality digital products focused on business results. We are an innovative, creative team passionate about technology. Certified for the 5th consecutive year as a Great Place to Work, here at ília we believe that people change the world, and we invest in them. Our awesome deliveries are made by people for people — after all, awesome people make awesome deliveries #Cometoília The role: We are looking for experienced professionals, preferably with a background in banking or financial services, and/or experience building Know Your Customer (KYC) or Know Your Business (KYB) processes. About the project: We are embarking on a mission to build a cutting‑edge, direct‑to‑consumer digital investment platform for a leader in the financial services industry. The core challenge is to create a seamless and intuitive experience that captures and retains significant assets, particularly from individuals transitioning out of employer‑sponsored retirement plans and those seeking to invest their personal capital. This is a ground‑up initiative to deliver a modern wealth management solution. You will be at the heart of a strategic, multi‑phased program that fundamentally transforms how our client engages with its customers. The work: The project involves architecting and developing a robust platform powered by a modern, API‑based infrastructure. We will integrate with a leading fintech partner to handle the core mechanics of account opening, funding, and trading, allowing our team to focus on building a superior, client‑facing experience. Success requires more than just great code. You will join a dynamic, cross‑functional team of product managers, UX/UI designers, business strategists, and compliance experts. You will work in close collaboration to navigate complex financial regulations, translate intricate business requirements into elegant technical solutions, and solve challenging integration problems with our external partners. This role is ideal for a proactive problem‑solver who thrives in a collaborative environment and is passionate about building products that have a real‑world impact on people's financial futures. Requirements: English proficiency: C1 or higher. Strong proficiency in Node.js, with experience using modern frameworks such as NestJS, Express, or Fastify. Experience designing and implementing BFF (Backend for Frontend) layers, ensuring optimized communication between front‑end clients and backend microservices. Advanced knowledge of relational databases (PostgreSQL, Oracle) and NoSQL databases (MongoDB, DynamoDB). Experience designing and implementing microservices architectures, including communication patterns such as REST and gRPC. Expertise in event‑driven architectures, leveraging tools like RabbitMQ, Kafka, and Amazon SQS. Experience deploying and operating cloud‑based applications (AWS or Azure). Proficiency with containerization and orchestration technologies such as Docker and Kubernetes. Implementation and automation of CI/CD pipelines using GitHub Actions, Jenkins, or ArgoCD. Advanced Git knowledge with collaborative branching strategies (Gitflow, pull requests, code reviews). Familiarity with observability stacks including Prometheus, Grafana, and ELK Stack. Strong focus on testing (unit, integration, e2e) using Jest, Mocha, Supertest, or similar frameworks. Adoption of TDD/BDD principles and continuous code quality improvement. Experience working in Agile environments (Scrum, Kanban). Proven track record with high‑volume, low‑latency, and scalable distributed systems. Ability to refactor, optimize, and evolve codebases and architectures continuously. Understanding of distributed systems concepts and asynchronous processing patterns. Nice to have: Experience developing financial or investment web applications. Benefits and Incentives: Our employment model is CLT (Brazilian labor law), with a 40‑hour flexible workweek, performed remotely. ília’s benefits are designed to provide an AWESOME experience for every ílian. Below is a summary of our benefits. #Cometoília Health and Well‑being: SulAmérica Health and Dental Plan, extended to dependents Meal/Food allowance on a flexible “Caju” benefits card Life Insurance Home‑office allowance on a flexible “Caju” benefits card Wellhub (Gympass) Sesc (Commerce Social Service) - extended to dependents, with access to services throughout Brazil TotalPass For Your Development: ília University: Corporate university with over 20,000 courses available for personal and professional development í-talks and Chapters: Moments and ceremonies where the team shares practices, studies, projects, and ideas. Chapters bring together people with similar skills to exchange ideas, practices, and experiences Onhappy – leisure travel benefit that gives you the freedom to travel with whomever you want BYOD (Bring Your Own Device) – We rent your personal laptop by paying you a monthly fee for its use, but we also provide work computers for ílians. It’s your choice Your Birthday, Your Cake - Extra voucher on the flexible “Caju” benefits card on your birthday Networking Reward Program – A referral program that rewards you for bringing in new employees #J-18808-Ljbffr