Palak Mittal

I’m a Software Engineer II who builds high-impact systems that ship. At InvestSky, I integrated third-party news APIs and built a localization pipeline for Arabic-language financial news, unblocking the launch in the Saudi market.

I architected an instrument data model with lite and full rendering modes, restructuring instruments into typed categories to simplify the client and improve render performance. Previously at PhonePe (Share.Market), I led a team of four owning data cataloguing services, solutioning complex features, and driving integrations with third-party systems.

In search, I helped power discovery for 20M users using Elasticsearch, Kafka, and CosmosDB—improving end-of-funnel conversion by 5%, reducing search latency by over 66% (from ~300ms to <100ms) via caching and query optimization, and implementing a custom 10-parameter ranking algorithm across Equity, ETF, Futures, and Options. I also scaled the architecture to 800 RPS and improved security by mitigating a ReDOS vulnerability, then delivered ledger-scale work including a Kafka-driven migration to HBase with zero-data-loss for 24M entries.

I’m also deeply hands-on with streaming and AI: I built a Flink-based ETL framework with source connectors, checkpointing, and time-windowed event processing; designed a scalable CDC-based ingestion pipeline for ledgers; and created AI agents using LangChain and RAG (including Compliance.AI) for regulated stockbroking workflows, extended to international payments and lending. Earlier, I founded Gleo, a multi-agent conversational practice app (LangChain, OpenAI, Azure STT/TTS, Claude), and I’ve contributed to security automation (AWS) and backend development (Salesforce), consistently prioritizing reliability, performance, and clear ownership.