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Rakeshkumar B.
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Rakeshkumar B.

Knack Developer | No-Code App & .NET | AWS Integration

When a business has a complex .NET system nobody else wants to touch, or needs a Knack application built properly from scratch - that's usually when they find me. I've been building software for 18 years. My work sits at the intersection of two things most developers handle separately: low-code platforms like Knack (where I can build and customize fast using Knack API, JavaScript, and CSS), and deep backend .NET work - ASP.NET Core, Web API, Entity Framework, legacy systems that need rescuing, and pipelines that need untangling. I've done this across Healthcare, Real Estate, Oil & Gas, E-Commerce, Media, and ERP/CRM platforms, so chances are I've seen a version of your problem before. On the AWS side, I work regularly with Lambda, API Gateway, SQS, SNS, SES, EventBridge, and DynamoDB - building serverless architectures that scale without drama. I'm also Make certified through Intermediate (Foundation, Basics, and Intermediate complete) and currently working through Make Advanced - bringing the same rigor to no-code/low-code automation, so when a platform like Make hits its limits, I can extend it with the custom code and backend infrastructure it can't provide natively. I also have solid experience with React on the frontend and Node.js for backend services, and I've integrated payment systems (Square), Google Ads API (campaign automation, AdSets, Merchant Center), and a wide range of third-party REST APIs. Where I add the most value: Knack app development, customization, and API integration ASP.NET Core / .NET Framework - new builds and legacy fixes AWS serverless architecture (Lambda, SQS, SNS, SES, API Gateway) Automation platforms (Make - certified through Intermediate, Advanced in progress) extended with custom code and integrations REST API design and third-party API integrations C# backend systems, Entity Framework, SQL optimization Desktop application development Reverse engineering and hard debugging problems others have given up on I don't disappear mid-project. I ask the right questions upfront, keep communication clear throughout, and deliver on time - every time. My 100% Job Success Score across 18 years isn't an accident; it's how I work. If you have something genuinely difficult to build or fix, let's talk.

🇮🇳Ahmedabad, India$35/hr100% JSS4.86 (27)Since Jun 2009

Earnings and projects

MRR
$2.4k

Last 6 months ÷ 6

World#17,668 / 412k
🇮🇳Country#2,269 / 45.9k
Revenue, last 30 days
$1.8k

Last 6 months: $14k

World#24,033 / 412k
🇮🇳Country#2,900 / 45.9k
Total earnings
$290k

Billed in all: $304k

World#8,258 / 412k
🇮🇳Country#1,278 / 45.9k
Per project
$8k

$4.8k in the last 6 months

World#20,752 / 412k
🇮🇳Country#2,220 / 45.9k
Projects, last 6 months
3
0% fixed100% hourly
World#66,479 / 412k
🇮🇳Country#7,740 / 45.9k
Projects in all
36

Across 49 contracts

18% fixed82% hourly
World#83,215 / 412k
🇮🇳Country#12,998 / 45.9k

Earnings, last 30 days

$304k+$1.8k earned in the last 30 daysBilled in all, before Upwork's fee · drag across the chart to see what was earned in any stretch
$302k$303k$304kOct 8Oct 23Nov 7

Skill rankings: Top 4% in jQuery

Ranked by MRR among everyone on Upwork with the skill.

  1. 3Knack18 freelancers · 🇮🇳 #2Top 17%
  2. #15DevExpress181 freelancers · 🇮🇳 #5Top 8%
  3. #50Reverse Engineering721 freelancers · 🇮🇳 #3Top 7%
  4. #99ASP.NET Web API1,447 freelancers · 🇮🇳 #37Top 7%
  5. #192ASP.NET MVC2,619 freelancers · 🇮🇳 #91Top 7%
  6. #198AWS Lambda2,947 freelancers · 🇮🇳 #42Top 7%
  7. #209ASP.NET2,819 freelancers · 🇮🇳 #76Top 7%
  8. #231Microsoft SQL Server2,759 freelancers · 🇮🇳 #71Top 8%