Senior Software Engineer (Fullstack/backend)

What You Will Do- Develop robust microservices using NestJS/Node.js and TypeScript , building APIs for lead generation, vendor management, and intent resolution services - Design and implement database architectures across PostgreSQL and MongoDB, including complex data models for B2B lead scoring, vendor relationships, and customer analytics - Build secure authentication and authorization systems using Auth0, OAuth2, and JWT tokens for multi-tenant SaaS platform serving enterprise customers - Integrate third-party services including LinkedIn APIs, Clearbit enrichment, Salesforce CRM, and payment processing systems with robust error handling and retry mechanisms - Optimize API performance for high-throughput scenarios (10M+ requests/day) including caching strategies, query optimization, and load balancing - Implement event-driven architectures using Google Cloud Pub/Sub for real-time data processing and inter-service communicationWhat You Will Be Responsible For- Database performance and scalability including query optimization, indexing strategies, and data modelling for complex B2B relationships - API security and compliance ensuring SOC2 standards for handling sensitive customer data and business intelligence - Service reliability and monitoring with comprehensive logging, alerting, and performance metrics using tools like New Relic / DataDog and custom dashboards - Code quality and technical debt management through rigorous code reviews, automated testing, and architectural improvementsWhat You Will Need- 6+ years backend development with Node.js/TypeScript and microservices architecture - Strong database expertise with PostgreSQL (complex queries, performance tuning) and MongoDB (document design, aggregation pipelines) - API design and integration experience with RESTful services, GraphQL, and third-party API consumption - Authentication/authorization implementation with OAuth2, JWT, and enterprise SSO solutions - Cloud platform proficiency with GCP services, containerization, and distributed systemsNice to Have- B2B SaaS platform experience with lead generation or CRM integration - Event-driven architecture with message queues and real-time processing - Performance optimization for high-traffic enterprise applications - LinkedIn API integration and social media platform development - Python and Data pipelines

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