3 years. $300k+ in delivered work. A 100% success rate on a platform where every single review is public and permanent. Here is the proof.
Screenshots, not claims. $300K+ earned, 123 jobs, 8,108 hours, 100% Job Success, Top Rated Plus. Every review below is public and permanent on the platform.












Anyone can put big numbers on a website. Here is what makes these ones hard to fake, and what they mean for you.
Upwork's Job Success Score drops from a single bad outcome, a quiet cancellation, even private negative feedback you never see. Holding 100% across 123 contracts over 3 years means not one client, ever, walked away unhappy. That is the number I protect hardest, and now your project inherits that paranoia.
8,108 billed hours is roughly four full working years of nothing but email: deliverability, infrastructure, outbound and retention, compressed into three. When I say I have seen your problem before, it is because at this volume of reps, I genuinely have. You are not paying me to learn on your account.
Website testimonials are curated. Upwork reviews are not: every client can rate every contract, publicly, forever, and I cannot delete a single one. What you see on this page is the complete record, not the highlight reel. That is why I show screenshots instead of asking for trust.
None of the outcomes above came from talent or luck. They come from the same boring, repeatable 30-day operating system I run on every engagement.
Infrastructure, DNS, authentication, list health, flows, reputation history. I never touch anything until I know exactly what is broken and what it costs. Every case study on this page started with this teardown.
Deliverability and infrastructure before copy, always. CheckCheck's 10% to 61% jump and Maestro's 100% inbox placement both came from this ordering. A great email in the spam folder is worth exactly nothing.
Volume climbs on a controlled schedule that never trips provider filters. This is how Maestro reached 20,000 emails a day and Scalability reached 3,000 a day without burning a single domain.
Wins compound only if someone is watching. Continuous placement monitoring, testing and a written Friday report on every account. SynapsDx's +374% took 12 months of this loop, not one clever trick.
Three engagements, three different industries, one identical pattern: fix the foundation and the numbers move.
Real clients, real numbers, full write-ups. Click any card for the complete story.
Full deliverability rebuild and a targeted cold email + LinkedIn engine drove 374% revenue growth over a 12+ month partnership.
List activation / Streaming SaaSCompetitor lists turned into 250,000+ new users. 20,000 emails a day, 80%+ open rates, 100% deliverability on a 5-server infrastructure.
Outbound engine / Design agencyRebuilt outreach infrastructure turned deliverability failures into $200,000+ in revenue, with 4 to 5 qualified leads a day across email and LinkedIn.
Outbound engine / Creator agency15 qualified leads in month one, then roughly 3 leads a day for six months, at 100% deliverability on in-house SMTP infrastructure.
Marketing automation / NonprofitThe email backbone for a 50,000-person global network: 19 programs unified on Acquia Campaign Studio, migrated off Salesforce Marketing Cloud.
Retention / Consumer appA cold, inherited list unified under Klaviyo. Deliverability from 10% to 61% in 30 days and $2,000 a day in additional flow revenue.
Retention / Home services appA fragmented messaging stack rebuilt into a full Braze funnel: email, SMS and push as one system, driving $2,000 a day in extra revenue.
Verbatim from verified 5.0 Upwork reviews.
"Kunal is the BEST!"
"Kunal was extremely knowledgeable and easy to work with. Hope to work with again sometime in the future."
"Very efficient and straight forward. I would recommend Kunal for Sendgrid API and CRM campaign automation tasks."
"He was so quick to find the problem and then providing a straight forward solution. Kunal demonstrated the knowledge and we are glad to receive his expertise."
"Partnering with Kunal was a breeze. He came to our first meeting with creative solutions and ideas, quickly bringing our project to fruition. I highly recommend him for his efficiency and insight."
"Kunal is highly knowledgable and well-versed with Mailchimp. We are very happy with the designs he built for our client. Highly recommended."