Appsierra Group
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Key Responsibilities • Design, develop, and maintain full-stack web applications using React (frontend) and NestJS/TypeScript (backend). • Architect and optimize APIs, microservices, and event-driven systems leveraging Kafka. • Work with PostgreSQL and MongoDB to model, store, and query structured and unstructured data. • Ensure system reliability, performance, and security across AWS cloud environments (EC2, S3, RDS, Lambda, etc.). • Collaborate with Product, Design, and Data teams to deliver user-friendly, high-impact applications. • Implement CI/CD pipelines, automated testing, and code reviews to ensure best engineering practices. • Contribute to system design and architecture decisions for scalability and maintainability. • Mentor junior developers, providing technical guidance and fostering a culture of excellence. • Troubleshoot, optimize, and improve existing systems to meet evolving business needs. Qualifications Core Skills • 10+ years of professional software development experience, with at least 3+ years in full stack roles. • Strong expertise in TypeScript and JavaScript for both frontend and backend development. • Proficient in NestJS (Node.js framework) for building scalable backend APIs. • Advanced experience with React for building modern, responsive web interfaces. • Hands-on with PostgreSQL (relational DB) and MongoDB (NoSQL). • Experience with Kafka for real-time messaging, streaming, and event-driven architecture. • Solid knowledge of AWS cloud services (EC2, RDS, S3, Lambda, IAM, etc.). Nice-to-Have • Familiarity with containerization and orchestration (Docker, Kubernetes, ECS/EKS). • Experience with CI/CD pipelines (GitHub Actions, GitLab CI, or similar). • Knowledge of system security best practices (JWT, OAuth2, RBAC). • Exposure to financial systems, blockchain, or cryptocurrency technologies. Our Stack • Frontend: React, TypeScript, TailwindCSS • Backend: NestJS (Node.js, TypeScript), REST & GraphQL APIs • Databases: PostgreSQL, MongoDB, Redis • Messaging & Streaming: Kafka • Cloud: AWS (EC2, RDS, S3, Lambda, CloudFront, IAM) • CI/CD & DevOps: GitHub Actions, Docker, Kubernetes
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