tejas.k

Experience

Where I've done the work.

  1. Current role

    Crediblynow

    Senior Software Engineer

    • Work across the whole stack: backend, frontend and database. I pick up whatever comes my way.
  2. Dec 2025 – Apr 2026

    CoinTracker

    Software Engineer 2

    • 3 integrationsLed three blockchain integrations end to end (Bittensor, Starknet, Tezos) with full test coverage, opening new user segments and increasing revenue.
    • 5 chainsFound the upstream data issues behind balance discrepancies on five chains (Bittensor, Polygon, Cardano, Base, Solana) and fixed them, improving financial-data correctness.
    • 1-2 weeks → 2 daysBuilt a code-generation tool for blockchain integrations, cutting setup time from one to two weeks down to two days.
    • -16% failuresReduced production failures through node failover, state-driven flows and removal of N+1 queries.
    • Hardened the CSV ingestion pipeline with race-condition handling, validation and accurate counters.
  3. Nov 2024 – Jul 2025

    ObserveAI

    Software Development Engineer II

    • Moved into core observability infrastructure: instrumented custom backend metrics and wrote Helm charts for Grafana and Datadog alerts, for real-time, cross-platform incident response.
    • Added context-enriched logging to asynchronous Python services, making issues faster to find and resolve in a distributed environment.
    • Engineered a load-testing framework for text-to-speech, speech-to-text and LLM vendor APIs, tuning configuration for accuracy, response time and cost.
    • Defined Kubernetes service labels and log-aggregation standards for accurate scraping and unified collection across microservices.
  4. Mar 2024 – Nov 2024

    1mg

    Software Development Engineer II

    • -40% API latencyDecomposed the inventory-management codebase from a Ruby on Rails monolith into Python and Sanic microservices, reducing latency of the catalog-related APIs.
    • Built a Tenant Management microservice to support a multi-tenant architecture.
    • Designed a new schema that right-sizes the database for the SaaS model, for efficient storage and retrieval.
  5. Jun 2021 – Feb 2024

    Sandvine

    Software Engineer II

    • +40% engagementBuilt SQL-powered REST APIs to filter internet-activity data across 1M+ subscribers, driving higher user engagement.
    • 90% precisionDevised a proprietary algorithm that detects social-media uploads in raw internet data.
    • 30% fasterWrote a state-management module that moves PCAP files through upload, validation, IP discovery and consolidation.
    • up to 23 TB savedDeveloped a configurable record-pruning module (by date range) for customers' on-premise deployments.
  6. 2017 – 2021

    Vellore Institute of Technology

    B.Tech, Computer Science

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Tech stack

What I build with.

Languages & frameworks

  • Python Rupee Engine · 1mg (Sanic services) · ObserveAI (async services) · Bot detection
  • FastAPI Rupee Engine
  • Django
  • Flask
  • Sanic 1mg (microservices)
  • Java Bot detection · Sandvine
  • Spring Boot
  • Go System Design Playground
  • TypeScript System Design Playground · Rupee Engine UI
  • React Rupee Engine UI · System Design Playground · AOV Studios
  • JavaScript AOV Studios
  • SQL Rupee Engine · Sandvine · Bot detection

Systems & fundamentals

  • Distributed systems System Design Playground · Experience
  • Microservices 1mg · ObserveAI
  • System design LLD / HLD · System Design Playground
  • Data structures & algorithms Rupee Engine · System Design Playground (event heap)
  • Concurrency
  • PostgreSQL Rupee Engine

Data & cloud

  • Redis Bot detection
  • AWS
  • Kubernetes ObserveAI
  • Docker Rupee Engine · System Design Playground
  • Helm ObserveAI (alerting charts)

Observability

  • Prometheus ObserveAI
  • Grafana ObserveAI
  • Loki ObserveAI (log aggregation)
  • Datadog ObserveAI

Contact

Let's build something.

Open to lead and senior backend and distributed-systems roles. LinkedIn is the best way to reach me.

Bengaluru, India

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tejas@portfolio ~

The 30-second version

Tejas Kothari

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