Lalit Singh

Lead Engineer - Mokaa Studios - Remote

(2025-12)

Lead backend architecture and system design for a photo booth campaign platform handling high-volume image processing workflows.
Develop scalable backend services using Node.js, Express.js, and Next.js, ensuring efficient API design and secure data handling.
Build and maintain frontend features using React.js, delivering seamless campaign management and user interaction experiences.
Architected an event-driven image processing pipeline integrating AWS SQS, Lambda, and S3 to automate photo ingestion, transformation, and storage.
Implemented AI-based image processing workflows for campaign-specific creative generation and automated asset optimization.
Designed asynchronous processing mechanisms to handle burst traffic during live campaign events, ensuring reliability and minimal latency.
Drive technical decisions, mentor developers, conduct code reviews, and maintain high engineering standards across backend and frontend systems.

Senior Software Developer - GivHealth Care Inc. - Gurugram

(2024-10 - 2025-10)

Architected HIPAA-compliant and HL7-integrated microservices for secure medical data exchange and regulatory adherence.
Engineered scalable backend services in Node.js, PostgreSQL, and MongoDB; optimized API design and data modeling, improving response times by 45%.
Directed backend operations — task planning, code reviews, and AWS-based CI/CD — increasing release velocity by 40% while upholding coding standards.
Enhanced inter-service communication using API Gateway, load balancers, and event-driven patterns to strengthen scalability and reliability.
Implemented a patient onboarding optimization that reduced setup time by 28% and cut support tickets by 22%, accelerating new user activation.
Scaled backend services to handle 3x peak load during flu season with auto-scaling and resilient retry logic, achieving 99.95% uptime.

Senior Backend Developer - AlgoMedical Group Inc. - Toronto, Canada (Remote)

(2020-06 - 2024-10)

Built and optimized RESTful APIs using Node.js and Express.js backed by MongoDB, improving application efficiency by 30%.
Implemented AWS services (EC2, S3, Lambda, Load Balancer) to enhance performance and scalability by 40%.
Analyzed system requirements and recommended changes to ensure program interoperability, reducing system downtime by 20%.
Delivered core modules including shift scheduling, billing, payments, pharmacy order management, and EMR systems, ensuring reliable cross-service integration.
Drove a 22% rise in patient scheduling adoption over a quarter, expanding platform usage and delivering measurable efficiency gains across support processes.
Enhanced release quality with 85% test coverage, resulting in fewer production bugs and more stable deployments across multiple services.

Junior Software Developer - Possibility Solutions Private Limited - Mohali

(2018-10 - 2020-05)

Developed and maintained software features integrated into existing systems, significantly enhancing functionality and user experience.
Built RESTful APIs to serve data to JavaScript frontends for 10,000+ concurrent users, improving data retrieval times by 25%.
Deployed and maintained applications on production servers, ensuring 99.9% availability and scalability.
Contributed to 10+ projects, demonstrating expertise in API development, AWS server management, and problem-solving.
Optimized data processing and caching, cutting API latency by 40% and improving user wait times across the platform.
Implemented streamlined API features that reduced hosting costs by $2K monthly while maintaining reliability and response quality.
Expanded test harness coverage to catch regressions earlier, cutting production incidents by 60% within three months of active monitoring.

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