Vishal Kumar

VISHAL

Senior Software Engineer

Building the foundations reliable software runs on.

I engineer backend systems and internal platforms that reduce operational complexity, improve reliability, and help teams ship with confidence.

Vishal Kumar

Based in Bengaluru, India.

Available for SDE-II roles
View résumé↗SCROLL / 01

Selected engineering work · Atlan

Turned a recurring production failure into a product-quality system.

Blackbird is a declarative configuration-management system built for a fleet of customer tenant clusters.

01 · The problem

Temporary on-call changes drifted across 800–1,000 tenant clusters. Teams could not reliably distinguish actual state from intended state.

02 · What I designed

A Go and Temporal-powered reconciliation system: scheduled drift detection, idempotent remediation, and a declarative source of truth.

03 · What changed

20–30 services now use Blackbird as their configuration source of truth, and config-drift P0 outages were eliminated across the fleet.

Go · Temporal · Kubernetes · PostgreSQLA sanitised account of production work; implementation details remain confidential.

Career evidence

A track record across product stages and system scales.

01 / 03Nov 2024 — Jun 2026

Atlan

Software Engineer | Platform · Bengaluru, India

Company

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.

System scale

600+ production tenants. 800-1000 customer tenant clusters. Multi-service Kubernetes deployment.

Outcomes

  • Eliminated config-drift P0 outages across the fleet.
  • 600+ tenants migrated, zero data loss, zero downtime.
  • 20-30 services running on Blackbird as their config source of truth.
02 / 03Feb 2024 — Nov 2024

OpeninApp

Backend Engineer · Bengaluru, India

Company

Seed-stage smart link generator for creators. The platform redirects in-app browser traffic to native apps (YouTube, Instagram, Telegram).

System scale

1-5 million daily hits on the core redirection system.

Outcomes

  • 1-5 million daily hits served reliably.
  • MySQL OLTP database costs and size reduced; reporting latency gone.
  • Faster API responses from caching.
03 / 03Apr 2021 — Apr 2023

Relecture

Founding Software Engineer · Remote, India

Company

Bootstrapped EdTech startup. First and sole engineer for two years, working part-time through college.

System scale

Greenfield. Zero existing infrastructure, codebase, or product.

Outcomes

  • 80% infrastructure cost reduction.
  • Shipped a production product as the sole engineer.
  • Grew the team from 1 to 3.

Selected backend systems

Projects

Three production-minded systems shaped around state ownership, authorization, durable workflows, and operational recovery.

View project archive
01Jul 2023 – Dec 2023
Itelcotech project poster
Backend systemJul 2023 – Dec 2023

Itelcotech

Multi-tenant commerce and cloud-lab orchestration

Designed the backend for a production telecom learning platform: multi-tenant organization membership, course commerce, protected-content entitlements, quizzes, certificates, and dual-currency Stripe payments. Built an on-demand lab control plane that provisions isolated AWS EC2 and Free5GC environments, meters usage by minute, and reclaims idle capacity.

Engineering evidence

  • Tenant-scoped access and entitlements
  • EC2 provisioning with idle cleanup
  • Minute-level credit metering
tRPCPostgreSQLPrismaStripeAWS EC2Free5GCSanity CMS
Live project
02Jan 2023 – Mar 2023
Taskflow project poster
Backend systemJan 2023 – Mar 2023

Taskflow

Collaborative state, authorization, and task ordering

Built the application backend for collaborative workspaces, role-aware membership, invitations, boards, lists, and ranked tasks. Type-safe tRPC APIs sit over a relational Prisma and Neon Postgres model, with session and passkey authentication plus Redis-backed coordination.

Engineering evidence

  • Workspace RBAC and invitation flows
  • Relational board and task model
  • Rank-based task reordering
tRPCPostgreSQLPrismaRedisNextAuthWebAuthnLexoRank
SourceLive project
03Oct 2024 – Present
Teleport project poster
Backend systemOct 2024 – Present

Teleport

Event-driven dispatch and durable workflow orchestration

Engineered an event-driven delivery backend around explicit state ownership and durable execution. PostgreSQL records authoritative booking transitions; a transactional outbox and Kafka publish committed facts; Temporal coordinates driver matching and timeouts; Redis handles geo-discovery and expiring reservations without becoming the source of truth.

Engineering evidence

  • Transactional outbox and replay safety
  • Durable driver matchmaking
  • Optimistic concurrency and audit history
TemporalKafkaPostgreSQLRedisStripeSoketiPrismaDocker
SourceLive project

Capabilities

Broad engineering range. Deep systems judgment.

Backend SystemsGo, TypeScript/Node.js, Python, REST APIs, Microservices, Express, Fastify, tRPC, gRPC
Distributed SystemsTemporal, Kafka, RabbitMQ, Kinesis, Dapr, Asynchronous Processing, Multi-tenant Architecture, Idempotent Operations
Infrastructure & CloudKubernetes, Docker, Helm, ArgoCD, CI/CD, GitHub Actions, AWS (Lambda, S3, Kinesis, Athena, Glue), Linux
Product Delivery & ReliabilityOpenTelemetry, Grafana, Distributed Tracing, Metrics, Alerting, Production Incident Management, Claude Code, AI Agent Development, AI Workflow Automation
DatabasesPostgreSQL, CloudNativePG, Redis, MySQL, ClickHouse, S3/MinIO

In their words

Trusted to improve the systems that matter.

EngineeringAug 2026

High-velocity, dependable execution

“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 superpower is the rare combination of blistering speed and absolute dependability. His obsession with velocity allows him to clear platform bottlenecks and keep delivery moving at an unmatched pace, yet this rapid execution never comes at the expense of system integrity. Having him on the team brings immediate peace of mind—he is a high-velocity force multiplier who simply gets things done, and gets them done right.”
… more
RD

Rittik Dasgupta

Senior Software Engineer

Atlan

OpeninAppJul 2026

Practical backend systems engineer

“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 analysis. His work helped improve database performance, streamline data processing, and make logs more accessible for analysis and debugging. He demonstrated a solid understanding of backend systems, databases, and data pipelines while consistently approaching technical problems with a practical mindset. Vishal was also collaborative and dependable, making it easy to work together across different engineering tasks and solve problems effectively as a team.”
… more
AJ

Aditya Jain

Software Engineer

Zamp

OpeninAppOct 2024

Cloud-scale problem solver

“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 challenges, Vishal is the right choice.”
… more
AC

Amit Choudhary

DevOps & Platform Engineer

Hybrid Cloud | MLOps & AI Infrastructure

OpeninAppJul 2024

Simplifies complex codebases

“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 skill and his codebases. He would be a very valuable asset to any organisation.”
… more
SS

Shobhan Srivastava

Software Engineer, Data Platform

Myntra

ItelcotechOct 2023

Technical depth with business judgment

“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. His contentiousness is second to none. His contribution to enable a learning platform in telecom industry is remarkable. Thanks Vishal !!”
… more
RK

Rahul Kaundal

Head - Radio Access & Transport Network

Airtel-Vodafone / Itelcotech

RelectureSep 2023

Zero-to-one infrastructure builder

“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 organisation.”
… more
UP

Ujjwal Pushp

Entrepreneur in Residence at Antler | 2x Founder

Relecture

Swipe to view all 6 recommendations.

Start a conversation

Looking for a software engineer who can own the hard parts?

Open to software engineering conversations across product, backend, and platform work—especially where reliability, judgment, and ownership matter.

vishalx360@gmail.com
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2026 Vishal Kumar