Creators

Rajeev Kumar Singh

Engineer @Rippling | Blogger http://callicoder.com | Previously @gojektech @Directi @Flock @YatraOfficial @edge_verve @Infosys

@callicoder 938 X followersFirst product launched 9y ago

Total monthly visits
<5K
Oct 2026 · Below 5K floor
MRR
$1,300Claimed
Indie Hackers · 2026-09-29“$1.3K/mo”
Products
1
Since Jun 2017
Latest launch
9y ago
CalliCoder<5K visits/mo · $1,300/mo (claimed)
100% full-depth creator dossier open: complete product portfolio, 12-month combined traffic & MRR curves, shipping cadence, and timeline events.

Revenue

Portfolio · Last 12 months
Monthly revenue & equivalents1 / 1 products with revenue evidence
Sep 2026
CalliCoder$1,300/moSelf-reported eq.

Products

Products and research metrics
ProductVisits · OctActions
CalliCoderIn-depth programming tutorials for Java, Spring Boot and Golang<5K

Timeline

Launches, marketing, revenue milestones, and pricing/plan/positioning changes across products

  1. Nov 1 · 14d ago

    • CalliCoder Homepage headline (H1) changed to “In-depth programming tutorials for Java, Spring Boot and Golang”Positioning

      Deploying a full-stack Spring boot, Mysql, and React app on Kubernetes with Persistent Volumes and S...→In-depth programming tutorials for Java, Spring Boot and Golang

    • CalliCoder Adopted technology: AstroFeatures

      —→Astro

    • CalliCoder Adopted technology: CloudflareFeatures

      —→Cloudflare

    • CalliCoder Adopted technology: Cloudflare Browser InsightsFeatures

      —→Cloudflare Browser Insights

    • CalliCoder Removed technology: GatsbyFeatures

      Gatsby→—