Lakshya Mathuria

Software Engineer @ Hilabs | IIT Delhi | Backend & Distributed Systems | FastAPI, Redis, AWS

Delhi, India

About

Software Engineer at Hilabs and IIT Delhi graduate with experience building scalable backend systems and distributed infrastructure. At Hilabs, I work on backend platforms using FastAPI, PostgreSQL, Redis, AWS SQS, Kubernetes and Airflow, building systems involving distributed rate limiting, queue-based processing, concurrency control and fault-tolerant workflows. My work primarily focuses on backend architecture, scalable APIs and distributed systems engineering. Previously, I worked on projects involving large-scale simulations, CUDA-based parallel computing and full-stack application development. Interested in backend engineering, distributed systems, infrastructure/platform engineering and scalable system design. Technical Skills: Python, Java, C++, FastAPI, PostgreSQL, Redis, AWS, Docker, Kubernetes, Airflow, Distributed Systems Solved 500+ DSA problems across LeetCode, Codeforces and GeeksforGeeks. Codeforces Max Rating: 1655.

Experience

  • Software Engineer at HiLabs
    Nov 2025 - Present · 9 mos

    - Built and scaled a distributed robocalling backend handling 10K+ calls/day using FastAPI, PostgreSQL, Redis, and AWS SQS - Implemented a queue-based architecture (DB → SQS → consumers) with batching and worker routing for efficient processing - Implemented distributed rate limiting and concurrency control using Redis, enabling stable call throughput of 5 CPS - Developed fault-tolerant workflows with retries, exponential backoff, visibility timeouts, and idempotent updates for long-running tasks - Automated data pipelines using Airflow on AWS (S3, EMR) with parameterized DAGs, reducing manual intervention

  • Data Scientist at Turing
    Jul 2025 - Oct 2025 · 4 mos

    Designed and populated relational SQL databases with normalized schemas to support testing and integration. Generated and refined datasets for SFT and RLHF pipelines, ensuring high-quality inputs for LLM training and evaluation. Benchmarked 5+ models and ranked outputs using structured evaluation metrics to drive quality improvements.

  • Summer Research Intern at UNSW
    Dec 2023 - Jul 2024 · 8 mos

    Built an agent-based flood evacuation model using Python, MESA and NumPy to simulate human and hazard dynamics. Automated Sobol sensitivity analysis using SALib and Pandas to tune 10+ parameters, log experiment results efficiently. Developed simulation dashboards and refactored code into modular OOP design, improving scalability and performance.

  • Rendezvous ()
    • Events Activity Head
      Dec 2022 - Mar 2023 · 4 mos

      -Successfully orchestrated Hindi Kavi Sammelan, showcasing renowned poets and engaging1500+ audiences during the event -Managed deco work with a team of 25 members, ideated and successfully implemented different ideas for the fest

    • Events Team Head
      Mar 2022 - Nov 2022 · 9 mos

  • Marketing Executive at Inter IIT Sports Meet
    Oct 2022 - Dec 2022 · 3 mos