🚀 Lead Engineer @ Atlan
💡 Building scalable, reliable data platforms and distributed systems.
📍 Based in India | ✉️ aarshiarora3@gmail.com
- Drove platform reliability & performance engineering to consistently meet P99 SLAs across production.
- Led search API optimization efforts across code, infra, and storage layers.
- Elasticsearch: optimized sharding, applied ILM policies, rebalanced shards, enforced strict mappings to prevent bloat.
- JanusGraph: tuned queries for dense supervertices, reduced graph size & traversal overhead.
- Built MCPs for debugging system slowness; benchmarked improvements pre/post release.
- Created POCs using Pydantic + BAML for an L1 agent to analyze and flag tenant-level errors.
- Maintained JIRA hygiene & streamlined collaboration across platform and infra teams.
- Developed Levitate, a tiered time-series database handling 80M writes/min per customer and scanning 500M+ samples/query.
- Scaled system to 350M requests/min for clients like Hotstar and JioCinema using streaming aggregation and
vmAgent. - Built delta caching to reduce Grafana dashboard response time (2s → 700ms); added circuit breakers for ingestion rate control.
- Led scaling, concurrency, and cardinality troubleshooting; contributed to product roadmap and sprint planning.
- Built notification system supporting 70K notifications/sec using NSQ and GoLang.
- Scaled system to deliver 90M+ notifications, optimized caching and memory, and added telemetry for observability.
- Mentored engineers, led sprint planning, and collaborated with leadership on roadmap and design.
- Developed a PCI DSS Level 1 compliant payment gateway handling 150K+ monthly transactions ($1M–$6M).
- Implemented sliding window rate limiter for throttling requests and mitigating DDoS attacks.
- Built multi-channel notification systems (push, in-app, email, SMS) supporting 10M+ users and 25–30M daily streams.
- Developed internal ticketing APIs and monitoring tools; focused on bug fixing and unit testing.
Languages: Go, Java, Python, SQL
Datastores: PostgreSQL, Cassandra, Redis, Elasticsearch, JanusGraph
DevOps / Infra: Docker, Kubernetes, AWS, Prometheus, VictoriaMetrics
Tools: GitHub, Maven, Bitbucket Pipelines, Grafana
| Degree | Board | Institute | % | Year |
|---|---|---|---|---|
| B.Tech – IT | GGSIPU | NIEC, Delhi | 77.0 | 2013 |