Maulana Iskak

○ Owned the Web3 trading and settlement system across 4 blockchains on Solana and EVM, with secure transaction
execution, automatic failure recovery, and sponsored gas covering user transaction fees, plus risk screening across
170K+ on-chain tokens.
○ Reduced market data subscription costs by around 30% by batching on-demand refreshes for stale symbols into
consolidated API calls, cutting redundant per-symbol requests to the data provider.
○ Built the reporting service for a regulatory migration, reconciling filings against the prior regulators system to confirm
accuracy before cutover, with idempotent controls guarding against duplicate submissions.
○ Mentored engineering interns through production code reviews and backend system design discussions, supporting
their ramp-up into independently delivering production features.

○ Cut KYC false rejections by around 40% by redesigning a synchronous vendor-coupled verification flow into an async,
event-driven pipeline on Pub/Sub with multi-stage fallback logic, removing the cascading timeout failures caused by
upstream vendor latency spikes.
○ Reduced 2FA-related support tickets by around 78% by building a self-service 2FA reset flow with layered identity
verification, cutting manual operational workload while protecting against account takeover.
○ Built a daily user tiering pipeline that aggregates trading volume across microservices via Pub/Sub, combines it with
AUM data, and maintains monthly-reset cumulative totals for around 5M users.
○ Ran a zero-downtime migration from Datastore (NoSQL) to PostgreSQL with foreign-key constraints using staged
backfill, dual-write synchronization, and validation to resolve integrity issues from the schemaless source.

○ Built a full-stack incident management system with a Go backend and React Native frontend, integrating Slack, Jira, and
Confluence, with webhook-based alert ingestion, rule-based routing, and time-based escalation with retry handling.
○ Contributed to account microservices covering user authentication, profile management, and access control. Delivered new
features, fixed production issues, and participated in code reviews within a cross-functional engineering team.