• Working on the core rust based OSS data versioning system on both optimization and design.

https://github.com/Oxen-AI/Oxen/commits/main/?author=subygan

Built Nimbleedge’s Federated Learning (FL) platform and individually designed, and managed their ML model

sampling, training and aggregation systems.

• Critical in Architecture decisions on edgeML C++ SDK built on top of Onnx runtime. Which enabled us to distribute

wrappers for React-Native, Dart and Swift runtimes. To be deployed in iOS and Android applications.

• Went live with a enterprise with 100M MAU. Systems I built were handling 20K requests per second at peak load. We

did 50M inferences a day on EdgeML deployments.

• Converted FL Research papers into Deployable and maintainable applications.

• Implemented FL strategies such as FedAvg, Model Finetuning in the edge, Client Selection Polling, Secure Aggregation,

etc.

• Mentored and worked with Junior engineers and interns on deliverables and deployments.

Part of the Governance team. Working on control plane services, Securing and governing privacy-vault.

• Worked on RBAC and PBAC engines which enabled users to define granular access control, enabling users to

control access at table, column, row, location(based on IP lookup) and data-region level accesses by applications.

• Designed and built service token based authentication for machine to machine Access management

• Migrated from a single tenant architecture to a multi-tenant architecture. With data residency in multiple

regions. Globally Rolling deployments with ¡3 minute downtime for enterprise users.

• Worked on performance optimisations for the Data governance engine. Which reduced p99 response time from

150 ms to 5ms at 15K rps by leveraging hierarchical caches and cache invalidation algorithms.

• Migrated from an Arangodb based backend to Mongodb, with 80 Million records coming to about 1TB data, with zero

downtime To improve reliability and performance

As a member of the platforms team, built Insurance audit platform organizing logs and information across 15 different

services, built pdf digital signing, and claims payout and payin management services.

• Improved developer tooling and compile-time over a rust codebase, by optimizing heavy dependencies and building infra

for remote code compilation to accelerate dev time.

• During a period of management turmoil, stepped up and managed more than 150 releases over a period of 7

months coordinating across 8 different teams, besides regular development tasks.

• pre-github-actions, Built an CICD platform with AWS device-farm to test, run and deliver test results on both frontend

and backend systems. This reduced regression testing time by 80%

Worked on internal tooling for software reliability, testing and deployment.

Implemented on-demand end to end and integration Test running environments for developers with support for backend (linux) and frontend (MacOs native, Windows native, android, ios and Web) codebases.