Senior Back-End Engineer (Node.js/PostgressSQL/Docker) - Freelance FT - Americas

Role Overview

Join BiggerPicture as a Senior Back-End Engineer where you'll be essential in designing and developing the core back-end systems of our platform. Collaborate with front-end engineers, product teams, and other stakeholders to deliver scalable, performant, and secure APIs, ensuring data integrity and system reliability.

Responsibilities

• Architect, design, and maintain scalable back-end services using Node.js and TypeScript.
• Develop and manage RESTful APIs to facilitate seamless communication between front-end and back-end systems.
• Utilize tRPC for type-safe, end-to-end API interactions.
• Optimize database queries and ensure data consistency with PostgreSQL.
• Implement robust authentication, authorization, and security measures.
• Enhance system performance and scalability through asynchronous processing, caching strategies, and distributed systems.
• Integrate third-party services and external APIs to expand platform functionality.
• Write and maintain unit and integration tests to ensure code reliability.
• Collaborate with the engineering team on architectural decisions and improve development workflows.
• Stay informed of emerging back-end technologies, cloud services, and industry best practices.

Required Skills

• 5+ years of experience in back-end development, focusing on Node.js and TypeScript.
• Proficiency in relational databases, with expertise in PostgreSQL and query optimization.
• Strong grasp of API design principles, including REST and GraphQL.
• Experience in building scalable, distributed systems and microservices architecture.
• Knowledge of authentication and authorization principles, including OAuth and JWT.
• Experience with containerization technologies like Docker and cloud platforms such as AWS or GCP.
• Strong debugging and performance optimization capabilities.
• Excellent collaboration and communication skills, especially in a remote work setting.

Nice to Have

• Experience with tRPC for type-safe API interactions.
• Knowledge of event-driven architectures and real-time data processing.
• Familiarity with CI/CD pipelines and DevOps practices.
• Experience with serverless architectures like AWS Lambda or Firebase.
• Background in logistics, transportation, or supply chain technology is a plus.