Platform engineer at kAIgentic. Previously at Atlan: migrated 600+ tenants with zero downtime and built the config system for 800 to 1,000 clusters.
Software Engineer II, kAIgentic. Bengaluru, India.
Selected engineering work, Atlan
Blackbird is a declarative configuration-management system I designed and built from scratch for a fleet of customer tenant clusters.
Go, Temporal, Kubernetes, PostgreSQL
Temporary on-call changes drifted across 800 to 1,000 tenant clusters. Teams could not reliably distinguish actual state from intended state.
A Go and Temporal reconciliation system: scheduled drift detection, idempotent remediation, and one declarative source of truth. A service onboards by adding one remediation class with four methods.
20 to 30 services now use Blackbird as their configuration source of truth, and config-drift P0 outages were eliminated across the fleet.
A declarative source of truth rather than another imperative tool. Temporal over Argo, for durable reliability.
A sanitised account of production work; implementation details remain confidential.
“Working with Vishal gives you a front-row seat to modern engineering velocity. As a genuinely AI-native engineer, he translates complex requirements into robust backend solutions faster than almost anyone I’ve worked with. Vishal’s ultimate…”
“I had the opportunity to work with Vishal at OpeninApp, where he worked as a Backend Engineer. He made strong contributions across multiple backend initiatives, particularly in database optimization and building ETL pipelines for large-scale log…”
“I highly recommend Vishal Kumar for his exceptional intelligence and expertise in cloud technologies. He is a true problem solver with a solid understanding of scaling systems. If you're looking for someone capable of tackling complex technical…”
“Vishal is a detail oriented, hard working individual with a knack for simplifying complex codebases and automating repetitive tasks. I have worked on a project with Vishal and it was a pleasure working with him. He has in depth knowledge of his…”
“It is quite rare when we come across a great engineer like Vishal, who not only understands the requirement of a client but also delivers beyond expectations. He has great combination of technical expertise, team collaboration and business acumen…”
“Vishal is a go-getter. At Relecture, he built the entire tech infrastructure from the ground up. He possesses great problem-solving skills along with the right attitude to work in ambiguous situations. Vishal will be a great addition to any…”
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Series C data collaboration platform (data catalog) serving enterprise customers globally. Platform Services team owns internal infrastructure, developer tooling, and production reliability for every engineering team.
600+ production tenants. 800 to 1,000 customer tenant clusters. Multi-service Kubernetes deployment.
Seed-stage smart link generator for creators. The platform redirects in-app browser traffic to native apps (YouTube, Instagram, Telegram).
1 to 5 million daily hits on the core redirection system.
Bootstrapped EdTech startup. First and sole engineer for two years, working part-time through college.
Greenfield. Zero existing infrastructure, codebase, or product.
Three systems shaped around state ownership, authorization, durable workflows, and operational recovery.
View project archive
Event-driven dispatch and durable workflow orchestration
An event-driven delivery backend. PostgreSQL owns booking state, a transactional outbox and Kafka publish committed facts, Temporal coordinates driver matching and timeouts, and Redis serves geo-discovery without becoming the source of truth.
Multi-tenant commerce and cloud-lab orchestration
The backend for a production telecom learning platform: multi-tenant organizations, course commerce, quizzes and certificates, dual-currency Stripe payments, and on-demand AWS lab environments metered by the minute.
Collaborative state, authorization, and task ordering
The backend for collaborative workspaces: role-aware membership, invitations, boards and ranked tasks, behind type-safe tRPC APIs on Postgres, with passkey authentication and Redis coordination.
Open to conversations about backend, platform and infrastructure roles. Email is fastest.
