Headline

Backend Engineer | Java, Spring Boot, Python, C++ | Low-Latency Systems & Distributed Computing | Competitive Programmer | Building Scalable & Efficient Systems

About

Backend engineer who likes systems that stay up when things go wrong. I'm an currently SE1 at Smartsheet, building and scaling cloud-based backend systems — high-performance microservices and distributed architectures in Java, Spring Boot, and AWS. My focus is resilient, fault-tolerant services: the kind that keep working at scale, fail gracefully, and don't page anyone at 3 AM. Before Smartsheet, I worked on low-latency trading infrastructure at Futures First, writing performance-critical systems in modern C++ (with Java and Python). I designed an event-driven replication layer using Apache Kafka and RocksDB to replace Aeron middleware — and spent a lot of time thinking about concurrency, memory, and shaving microseconds. Those lessons carry directly into the high-availability cloud platforms I build now. I'm also an Expert on Codeforces — which is a long way of saying I enjoy hard algorithmic problems for fun. What I care about most: system design, performance tuning, and distributed computing, the problems where scale and precision actually matter. Always happy to talk with teams working on hard backend and distributed-systems challenges. I'm a firm believer in eventual consistency — both in distributed systems and in getting back to my messages.

Location

Bengaluru

AI stack

anthropic apis

claude code

claude

langchain

mastra

Humanloop

Work experience

Software engineer 1 at Smartsheet, Oct 2025 - Present · 1 yr 1 mo, Bengaluru, Karnataka, India, • Built and shipped production SaaS connectors (Microsoft Dynamics 365) enabling enterprise data synchronization. • Drove the decomposition of a legacy Java monolith into independently deployable microservices, improving release timeline by∼40%. • Integrated Datadog observability and alerting into workflows, reducing mean time to resolution by 35%. • Tuned MySQL schemas and query plans for connector sync-state storage, improving query performance by∼25% through targeted indexing. • Designed and deployed Model Context Protocol (MCP) servers exposing internal APIs as tools for LLM powered automation pipelines.

Software Engineer at Futures First, Oct 2024 - Oct 2025 · 1 yr 1 mo, Engineered high-performance, low-latency backend systems in modern C++ for trading infrastructure, optimizing memory usage and multi-threading to reduce latency under heavy loads. Designed a distributed event-driven backup system using Kafka and RocksDB to reliably replicate communication between trading servers, replacing Aeron middleware and improving fault tolerance.

Software Engineer in Test at E2E Networks Limited, May 2024 - Sep 2024 · 5 mos, Overhauled backend testing using Python and Django and PyTest, achieving a 30% boost in deployment efficiency via automated and manual testing.

AI Trainer at Scale AI, Jun 2023 - Dec 2023 · 7 mos, Delhi, India, Computer Science Expert AI Training (freelancing) • Collaborated with the AI team to refine responses, enhancing accuracy and efficiency. • Leveraged C++, Java, and Python to improve AI-generated user interactions.

Member at Entrepreneurship Cell, LNMIIT, Dec 2020 - May 2022 · 1 yr 6 mos, Jaipur, Rajasthan, India

Education

Bachelor of Technology - BTech, Computer Science, The LNM Institute of Information Technology

Public links

github: https://github.com/vansh482