Full Stack Technical Lead

About The Role
We're looking for a Full Stack Technical Lead who can independently own and drive the full technology stack of our platform. You'll lead architecture decisions, build and mentor a small engineering team, and be the single point of accountability for delivery across multiple product verticals. This is not a managerial role that sits in meetings
- you'll be hands-on with code daily while setting technical direction. What You'll Own
• End-to-end technical ownership of the platform
- from backend services to user-facing APIs
• Architecture and delivery of core product modules including order management, real-time data processing, payment integrations, and user management systems
• Multi-tenant deployment pipeline
- enabling partners to launch customized platform instances with isolated configurations, fee structures, and branding
• Performance and reliability of systems handling real-time data processing, high-throughput transactions, and concurrent user operations
• Integration with external data providers, third-party APIs, and payment gateways
• Security posture
- API authentication, rate limiting, data protection, and vulnerability remediation
• Database design and optimization for high-throughput transactional workloads (PostgreSQL, MongoDB etc)
• Real-time infrastructure
- WebSocket feeds, Redis pub/sub, event-driven architectures
• CI/CD pipelines, deployment automation, and production incident response
• Code review standards, technical documentation, and engineering best practices What We're Looking For
• 6+ years of backend engineering experience, with at least 2 years in a lead/architect role
• Deep experience building high-scale, transaction-heavy platforms
- fintech, trading,



payments, or similar domains
• Solid proficiency in Node.js/TypeScript (our primary stack), Go or Python, PostgreSQL, Redis, and message queues
• Experience with real-time systems
- WebSockets, low-latency data pipelines, and high-concurrency architectures
• Experience with white-label or multi-tenant SaaS architectures
- tenant isolation, configuration management, and deployment strategies
• Hands-on with cloud infrastructure (AWS preferred)
- EC2, RDS, ElastiCache, S3, CloudFront, and containerized deployments
• Strong grasp of security practices
- JWT authentication, API security, DDoS mitigation, and secure key management
• Experience with monitoring and observability
- Sentry, Grafana, application logging, and alerting
• Ability to make pragmatic trade-offs between speed and quality, and communicate those decisions clearly
• Experience leading and mentoring a team of 3-5 engineers Nice To Have
• Experience with financial/trading systems
- matching engines, margin systems, settlement flows
• Familiarity with blockchain fundamentals
- wallet management, on-chain/off-chain transactions
• Experience integrating third-party KYC/AML providers (Sumsub, Jumio, etc.)
• Exposure to regulatory compliance requirements across multiple jurisdictions
• Experience with TimescaleDB or other time-series databases for high-frequency data
• Contributions to open-source projects or technical writing Tech Stack
• Backend: Node.js, TypeScript, Express, Go, Python
• Databases: PostgreSQL, TimescaleDB, Redis
• Infrastructure: AWS, Docker, PM2, Nginx
• Real-time: WebSockets, Redis Pub/Sub
• Monitoring: Sentry, Grafana
• External: Binance APIs, payment gateways, blockchain RPCs (ref:hirist.tech)

📌 Delta6Labs - Full Stack Technical Lead (Noida)
🏢 Delta6Labs
📍 Noida