Senior Back End Developer

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Our clients rely on our community to build or expand their teams with best-in-class remote software engineers, designers, and Agile practitioners—rapidly deployed without compromising on quality.Join our Remobi community to work on meaningful, innovative freelance projects and help shape how companies operate.Start Date : ASAPLocation : Anywhere in LATAMContract Length- 6 months initiallyContract Type : Freelance / B2B / ContractSenior Backend Developer (NestJS / Digital Banking Platform)Position OverviewWe are seeking a Senior Backend Developer with 10+ years of experience and deep expertise in NestJS, API architecture, and multi-tenant systems to join our team.

You will lead backend development for a next-generation digital banking platform, enabling account creation, secure transfers, real-time dashboards, and deposit tracking.This is a hands-on leadership role for an engineer who thrives in fast-paced environments, challenges assumptions, and mentors a young and ambitious engineering team while driving backend excellence.Key ResponsibilitiesBackend Development & ArchitectureDesign, build, and optimize scalable multi-tenant APIs for a digital banking system.Implement secure account creation, transfers, and real-time banking dashboards.Lead API architecture discussions, testing (unit, integration, e2e), and deployments.Leadership & MentorshipMentor and coach a growing engineering team, instilling best practices in backend systems.Facilitate code reviews, technical discussions, and knowledge-sharing sessions.Challenge existing approaches and propose better architectural and technical solutions.Event Streaming & ObservabilityDrive the adoption of event streaming (Kafka) for real-time transaction processing.Implement strong monitoring, logging, and observability with tools such as Datadog or Grafana.Collaboration & DeliveryWork closely with frontend engineers (React / Next.js, React Native) to deliver seamless banking experiences.Contribute to onboarding processes by setting up tools, frameworks, and engineering standards.Collaborate cross-functionally with stakeholders to ensure reliable and timely delivery.Requirements10+ years of experience in backend development.Deep expertise with NestJS (architecture, testing, and production deployment).

Strong background in multi-tenant API systems and scalable backend architectures.Experience in financial services or digital banking is highly desirable.Hands-on experience with Kafka or similar event streaming platforms.Knowledge of observability tools such as Datadog, Grafana.Strong leadership, mentoring, and coaching skills.Excellent communication skills in both English and Spanish.