270M
Users reached by one notification fabric
A highly available, multi-channel notification service delivering personalised messages with sub-second latency.
multi-channel · sub-second · highly available
Principal System Architect & CTOKuala Lumpur, Malaysia · Mumbai, India
Architecting systems that never blink.
I'm Sanket. I design the event-driven platforms, composable data systems and zero-trust infrastructure that serious businesses run on. Previously at Grab and Carsome; most recently CTO at Fortii.
01 — Impact
Numbers that
Numbers that
moved the business.
Outcomes from nine years in production, at consumer scale and inside regulated enterprises.
70%
Of company revenue
Architected and scaled the backend of the mission-critical Auction Platform.
~$1M
Enterprise CDP on GCP
Led discovery, pre-sales and architecture of a composable Customer Data Platform for a major Japanese conglomerate, unifying credit, banking and retail data.
0→1
Compliance from the ground up
Engineered the code and infrastructure controls behind certification.
ISO 27001SOC 2 Type II
0s
Downtime, across all of production
Upgraded the entire production backend ahead of AWS end-of-life with full business continuity.
Weeks → seconds
Payment verification, automated
A Node.js Virtual Account integration API that took Finance off manual reconciliation.
15
People in a cross-functional team, across three product lines
Set the technical vision and architected the core AWS backend, and packaged zero-trust solutions for air-gapped enterprise environments.
DataSecOpsAISecOpsPrivacyOps
02 — Journey
Nine years,
Nine years,
five chapters.
From early-stage startup backends to running engineering as CTO. Tap a chapter to expand it.
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- Product architectureSet the technical vision and architected the core AWS backend across DataSecOps, AISecOps and PrivacyOps, directing a 15-member cross-functional team.
- Security & complianceBuilt the security posture from the ground up, engineering the controls required for ISO 27001 and SOC 2 Type II.
- Enterprise CDP deliveryLed discovery, pre-sales and solution architecture for a ~US$1M composable CDP on GCP for a major Japanese conglomerate.
- Air-gapped & partnershipsDefined the strategy for packaging zero-trust solutions into air-gapped environments, and sold and deployed AI guardrails for Islamic Insurance Malaysia through a partnership with Naluri.
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- Revenue platform scalingArchitected and scaled the Auction Platform backend, which handles 70% of company revenue.
- Zero-downtime migrationLed the MySQL 5.7 → 8.0 upgrade across the whole production backend with 100% business continuity.
- FinOps automationBuilt a Node.js Virtual Account integration API that cut payment verification from weeks to seconds.
- Cloud strategyAdvised engineering leadership on the multi-cloud migration roadmap from AWS to GCP.
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- Backend architectureDirected end-to-end backend architecture and technical scoping for blockchain-powered Staking and Marketplace platforms.
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- High-throughput systemsEngineered a multi-channel notification service reaching 270 million users with sub-second latency.
- Cost optimisationDesigned Grab's in-house chat platform on RTC and WebSockets, retiring expensive third-party ticketing systems.
- Digital bankingAdvised on the architecture of GXS Bank's early-stage communication service under strict regulatory requirements.
- Grab-athon finalist, 2021Led a multidisciplinary squad to the final with a working marketing-platform prototype for SMEs.
-
- Startup backendsEngineered web and mobile backends for Talksho, an EOS-based asynchronous video forum, and Reachify IO, a business communication suite.
Education · Aug 2013 — May 2017B.E. (Hons.) Electrical & Electronics Engineering, BITS Pilani
Certification · 2021AWS Certified Solutions Architect — Associate
03 — Stack
The toolkit.
Pragmatic choices, hands-on depth. Everything here has carried production traffic.
01Languages & protocols
GoTypeScriptNode.jsPythonSQLBashgRPCGraphQLRESTProtobuf
02Architecture
Distributed systemsMicroservicesEvent-drivenHigh-availabilityLow-latencyDDDComposable CDPsIdentity resolution
03Cloud & SRE
AWSGCPKubernetesDockerTerraformHelmCI/CDAir-gappedWebSocketsPrometheusGrafana
04Databases
RelationalNoSQLPostgreSQLMySQLMongoDBDynamoDBElasticsearchRedis
05Data engineering
BigQuerySnowflakeETL pipelinesWarehousingZero-downtime migrations
06Security
Zero-trustISO 27001SOC 2 Type II
07Leadership
MentorshipTech debt & vendorsTechnical governancePre-sales solutioningOrg scaling
04 — Console
Query
Query
the system.
Engineers prefer a shell. Type a command or tap one below. There may be a privileged one.
05 — Contact