Senior Backend Developer

Summary

Join CapIntel, a rapidly growing wealthtech company, as a Senior Backend Developer. You will lead the design and development of scalable backend services using Node.js, TypeScript/JavaScript, and NoSQL databases. Responsibilities include architecting and optimizing RESTful APIs, collaborating with frontend engineers, ensuring seamless API consumption, owning deployment and monitoring of backend services on AWS, contributing to code quality standards, and working cross-functionally with other teams. This role requires 5+ years of professional backend development experience with advanced proficiency in Node.js and TypeScript/JavaScript, deep experience with MongoDB or other production-grade databases, and a strong knowledge of cloud infrastructure, especially AWS. A product-first mindset and strong communication skills are essential. Bonus experience includes familiarity with serverless architecture and experience optimizing CI/CD pipelines.

Requirements

• 5+ years of professional backend development experience , with advanced proficiency in Node.js and TypeScript/JavaScript
• Deep experience working with MongoDB , PostgreSQL , or other production-grade databases
• A track record of building and maintaining secure, performant RESTful APIs , ideally in a product-focused or B2B SaaS environment
• Strong knowledge of cloud infrastructure , especially AWS , and experience managing deployments, environments, and monitoring
• Passion for clean code, testing, and automation , with hands-on experience writing comprehensive unit and integration tests
• Strong communication skills and the ability to work collaboratively across engineering, product, and design teams
• A product-first mindset—you think beyond code and care deeply about the end-user experience

Responsibilities

• Lead the design and development of scalable backend services using Node.js , TypeScript/JavaScript , and NoSQL databases like MongoDB
• Architect and optimize RESTful API integrations that support enterprise-level scale, performance, and security
• Collaborate with frontend engineers to ensure seamless API consumption and user-facing feature delivery
• Own the deployment, monitoring, and reliability of backend services on AWS , with a focus on performance, observability, and cost-effectiveness
• Contribute to and uphold code quality standards through code reviews, documentation, and mentoring of intermediate developers
• Write robust unit and integration tests , ensuring backend stability across evolving product requirements
• Work cross-functionally with product managers, designers, and fellow developers to translate requirements into scalable backend solutions

Preferred Qualifications

• Familiarity with serverless architecture (e.g., AWS Lambda)
• Experience optimizing CI/CD pipelines and deployment workflows
• Python scripting or experience with data processing pipelines
• Exposure to frontend frameworks like React.js and collaborating within a full-stack MERN environment