Open to opportunities

Balaji Thukaram

@balajithukaram

Message

Senior Software Developer building scalable backend systems and product features with measurable impact.

India

Message

What I'm looking for

I’m looking for a fast-paced team where I can build scalable backend services, optimize performance in production, and strengthen reliability through observability and distributed systems—while exploring AI/ML workflows.

I’m a Senior Software Developer with 3.5+ years of experience building scalable backend systems and product features in JavaScript, TypeScript, and Node.js across cloud environments.

I focus on API design, system performance optimization, and distributed architectures—shipping reliability improvements that teams can depend on in production.

At SurveySparrow, I built an agentic translation pipeline with a custom multi-model architecture and improved cost and quality by optimizing translation usage (95% fewer external API calls) and adding Cloudflare CDN caching (30% lower core API latency).

I also launched and scaled the centralized billing platform from the ground up—delivering zero downtime for 2+ years, cutting p99 API latency by 98%, and scaling subscription, usage-based, and one-time payment flows across multiple products while maintaining end-to-end reliability.

Experience

Work history, roles, and key accomplishments

Current

Senior Software Developer

Current

SurveySparrow

Jul 2024 - Present (1 year 11 months)

Built an agentic translation pipeline using a custom multi-model architecture and optimized Google Translation API usage, cutting external API calls by 95%. Implemented Cloudflare CDN caching to improve core API latency by 30% and maintained zero downtime across the billing platform for 2+ years, reducing p99 billing latency by 98%.

TypeScript REST APIs Microservices Distributed Systems Event Driven Architecture Cloudflare New Relic Grafana Query Optimization

Software Developer

SurveySparrow

May 2023 - Jul 2024 (1 year 2 months)

Launched the billing product from the ground up, architecting core billing logic, subscription lifecycle management, and payment integrations. Integrated internal products and third-party services to improve reliability, and set up zero-downtime billing infrastructure for a new product (Q4 2023 People's Choice Award).

TypeScript REST APIs Microservices Payment Integration Observability CI CD Docker service reliability

Software Developer Intern

SurveySparrow

Jan 2023 - May 2023 (4 months)

Built the centralized billing system from scratch, designing foundational data models, API contracts, and service boundaries for future iterations. Implemented observability infrastructure with New Relic, Grafana, and CloudWatch to improve system visibility and enable proactive incident response.