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Karmandeep S.
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Karmandeep S.

Solutions Architect (Legacy Systems Modernization) Ecommerce

I AM THE SYSTEMS ARCHITECT YOU CALL WHEN THE STANDARD MANUAL FAILS. Since 2009, I have operated as an elite, independent engineering entity specializing in core infrastructure, WHMCS billing automation, complex database scaling, and high-risk legacy application modernization. I do not build basic, template-driven retail sites. My brain drops straight into hyper-focus to reverse-engineer order out of total structural chaos—specifically where ordinary development teams or generic agencies have hit a wall, burned out, and failed. 🛡️ Core Architectural Capabilities: • WHMCS Infrastructure Automation: Custom Provisioning Modules, secure Addon Modules, complex API Payment Gateways, and high-availability server orchestration hook systems. • Legacy Modernization & Decoupling: Re-architecting, optimizing, and dropping modern Laravel engines straight onto 15+ year old legacy production databases (including mission-critical healthcare environments with automated data processing and OSDP security boundaries) without a single byte of data loss. • Database Forensic Reliability: Total root-level database mastery. Diagnosing server resource spikes, resolving intense structural bottlenecks, and managing high-stakes data migrations from first principles. • Bare-Metal & VPS Engineering: Deep infrastructure intuition running from code logic down to Linux kernels and dedicated network layers. 🚫 My Terms of Engagement (How I Fly Solo): I operate as a true, self-driven solopreneur from a fully commissioned private sandbox environment. To maintain absolute mathematical precision and server data integrity, I have strict operational boundaries: • Fixed-Fee Rescue Contracts: I charge high, flat, fixed upfront milestone fees for major recovery operations, system architectural blueprints, and direct server configuration pipelines. With thousands of verified hours on the global market and nearly two decades of trenches-level execution scars, I don’t follow the herd. When your core enterprise platform is screaming toward terminal failure, put me in a quiet room and let me execute the math.

🇮🇳Mohali, India$45/hr100% JSS4.88 (83)Since May 2009

Earnings and projects

MRR
$153

Last 6 months ÷ 6

World#122,700 / 412k
🇮🇳Country#12,845 / 45.9k
Revenue, last 30 days
$80

Last 6 months: $920

World#94,411 / 412k
🇮🇳Country#10,098 / 45.9k
Total earnings
$106k

Billed in all: $113k

World#36,549 / 412k
🇮🇳Country#5,880 / 45.9k
Per project
$1k

$307 in the last 6 months

World#123,063 / 412k
🇮🇳Country#15,451 / 45.9k
Projects, last 6 months
3

Across 4 contracts

50% fixed50% hourly
World#66,479 / 412k
🇮🇳Country#7,740 / 45.9k
Projects in all
105

Across 135 contracts

34% fixed66% hourly
World#26,022 / 412k
🇮🇳Country#4,662 / 45.9k

Earnings, last 30 days

$113k+$80 earned in the last 30 daysBilled in all, before Upwork's fee · drag across the chart to see what was earned in any stretch
$112,550$112,600$112,650$112,700Oct 8Oct 23Nov 7

Skill rankings: Top 19% in MySQL Programming

Ranked by MRR among everyone on Upwork with the skill.

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  5. #714Payment Gateway Integration2,302 freelancers · 🇮🇳 #295Top 31%
  6. #759Website Customization2,423 freelancers · 🇮🇳 #169Top 31%
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  8. #1,321Bootstrap6,899 freelancers · 🇮🇳 #384Top 19%