FE International - Full Stack Developer
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Requirements
• Node.js and Express.js: server-side development, REST API design, middleware patterns • Deep understanding of JavaScript (ES6+, async/await, event loop) • MySQL (schema design, optimization, connection pooling) • Redis (caching, sessions, rate limiting) • Elasticsearch (indexing, querying, lifecycle management) • Hands on experience with AWS services: EC2, RDS (Aurora), ElastiCache, SQS, S3, SES, ECR, ECS • Strong experience with Docker & Docker Compose • Writing Dockerfiles and managing containerized deployments • Git version control and branching strategies • Experience with Stripe API (subscriptions, billing, webhooks) • Understanding of SaaS billing models (subscriptions, trials, usage-based pricing) • Experience with Elasticsearch custom analyzers & text similarity • Exposure to third-party APIs such as: Customer.io, TaxJar, reCAPTCHA, Azure Cognitive Services • What We’re Looking For • Strong problem-solving ability and system design mindset • Experience building scalable SaaS or high-traffic backend systems • Ownership mindset and ability to work in fast-paced environments • Interest in AI-powered productivity or writing tools (plus)
Responsibilities
• Design and build scalable backend systems for a high-performance SaaS product • Architect and implement RESTful APIs to support web and product features • Translate product requirements into efficient system and database designs • Optimize system performance for speed, scalability, and reliability • Design data flow across services involving search, caching, and asynchronous processing • Build and maintain secure and reliable cloud-based infrastructure on AWS • Implement and manage containerized services for deployment and scaling • Ensure system observability through logging, monitoring, and error tracking • Collaborate with product and engineering teams to define technical solutions • Participate in architecture decisions for scaling multi-tenant SaaS systems • Identify bottlenecks in existing systems and implement performance improvements • Ensure code quality through reviews, testing practices, and engineering standards
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