Independent Klaviyo specialist · Shopify & DTC

I make Klaviyo considerably more valuable.

I’m Josh. I work directly with ecommerce brands to find where email is underperforming, then fix the strategy, flows, campaigns, deliverability, copy and creative.

01$12.5M+Klaviyo revenue generated
02639Completed Upwork projects
03100%Job Success Score
04Expert-VettedTop Rated Plus on Upwork

600+ completed projects. Experienced strategy and execution. Work directly with Josh.

Verified Klaviyo results

Results, with the reporting behind them.

See how email performance changed across four ecommerce brands, with comparison periods and the original Klaviyo reporting.

  1. 01 · Luxury fragrance

    House of Sillage: read the case study

    Nov–Dec 2024 vs Nov–Dec 2025

    Before · Nov–Dec 2024$381.8KAfter · Nov–Dec 2025$482.6K
    +26%Email & SMS attributed revenue
    Klaviyo report for House of Sillage
    Before · Nov–Dec 2024
    House of Sillage Klaviyo dashboard, before periodOpen full size
    After · Nov–Dec 2025
    House of Sillage Klaviyo dashboard, after periodOpen full size
  2. 02 · High-ticket ecommerce

    Ironside Computers: read the case study

    Nov–Dec 2024 vs Nov–Dec 2025

    Before · Nov–Dec 2024$155.8KAfter · Nov–Dec 2025$475.2K
    +205%Email-attributed revenue
    Klaviyo report for Ironside Computers
    Before · Nov–Dec 2024
    Ironside Computers Klaviyo dashboard, before periodOpen full size
    After · Nov–Dec 2025
    Ironside Computers Klaviyo dashboard, after periodOpen full size
  3. 03 · Supplements

    LongevityRx: read the case study

    Aug–Oct 2025 vs Nov 2025–Jan 2026

    Before · Aug–Oct 2025$67.3KAfter · Nov 2025–Jan 2026$280.4K
    +316%Attributed revenue
    Klaviyo report for LongevityRx
    Before · Aug–Oct 2025
    LongevityRx Klaviyo dashboard, before periodOpen full size
    After · Nov 2025–Jan 2026
    LongevityRx Klaviyo dashboard, after periodOpen full size
  4. 04 · Fashion

    Elegatto: read the case study

    Nov–Dec 2024 vs Nov–Dec 2025

    Before · Nov–Dec 2024$209.1KAfter · Nov–Dec 2025$396.7K
    +90%Email-attributed revenue
    Klaviyo report for Elegatto
    Before · Nov–Dec 2024
    Elegatto Klaviyo dashboard, before periodOpen full size
    After · Nov–Dec 2025
    Elegatto Klaviyo dashboard, after periodOpen full size
View all verified results ↗

Figures are Klaviyo-attributed revenue for the stated periods, not a measure of incremental revenue. Results vary by engagement.

★★★★★ Client feedback on Upwork
“Great working with Josh. Our email revenue improved almost instantly. He understood our brand and what we were trying to do for the project.”

Klaviyo - Monthly Campaigns

View review excerpt

Screenshot excerpt from client feedback. Wording unchanged. Scroll across on smaller screens to read.

Client feedback excerpt for Klaviyo - Monthly Campaigns. Great working with Josh. Our email revenue improved almost instantly. He understood our brand and what we were trying to do for the project.

Selected email creative

The work should look as considered as the strategy behind it.

Different brands need different visual languages. I keep the commercial objective constant and make the creative belong to the brand.

★★★★★ Client feedback on Upwork
“Josh is a talented designer, highly skilled at Klaviyo email marketing and created some stunning emails. Responsive and adaptable as the project evolved. Thank you Josh for all your help!”

Email optimisation expert

View review excerpt

Screenshot excerpt from client feedback. Wording unchanged. Scroll across on smaller screens to read.

Client feedback excerpt for Email optimisation expert. Josh is a talented designer, highly skilled at Klaviyo email marketing and created some stunning emails. Responsive and adaptable as the project evolved. Thank you Josh for all your help!

How a flow earns

A welcome flow, followed from sign-up to sale.

A flow is a sequence that sends itself. Follow 1,000 new subscribers through a welcome flow to see what each step is for, and where the revenue comes from.

Exit · After day 5

Into your regular emails

Buyers move to the post-purchase flow. Everyone else joins your campaign audience, and how they engage from here decides what they are sent.

Illustrative revenue so far

$6,560

82 orders · 918 of 1,000 left the flow without ordering

Select any step to see what it is for.

An illustration, not a forecast or a client result: 1,000 new subscribers, an $80 average order, and order counts chosen to show the usual shape of a welcome flow. Yours will depend on your list, offer and products.

How I help

The right support for your next stage.

A defined project, ongoing management or focused advice. We agree the scope around your account, priorities and available resources.

What happens after the discovery call?

  1. 01

    Understand the opportunity

    We discuss your goals, the account’s current performance and the support you need.

  2. 02

    Agree the work

    If there is a fit, we define priorities, deliverables, timing and fees before work begins.

  3. 03

    Get started together

    Once agreed, we arrange the access and brand materials needed, then confirm the first priorities.

The person behind Silk Email

Josh R. Blackett, the independent Klaviyo specialist behind Silk Email
Josh R. BlackettIndependent Klaviyo specialist
One point of contact, from the first conversation to the work itself.

Silk Email, led by Josh R. Blackett.

I’m Josh. I bring together the commercial strategy, the technical work inside Klaviyo, and the copy and design your customers see. When you work with Silk Email, you work directly with me.

I like to start with what your account is actually telling us, agree what needs attention, then connect the detail to the bigger picture. You know who is doing the work and who to speak to about it.

★★★★★ Client feedback on Upwork
“Josh was very easy to work with and super responsive. The quality of work is very good. Would work with him again.”

Klaviyo - B2C E-Commerce - Automations

View review excerpt

Screenshot excerpt from client feedback. Wording unchanged. Scroll across on smaller screens to read.

Client feedback excerpt for Klaviyo - B2C E-Commerce - Automations. Josh was very easy to work with and super responsive. The quality of work is very good. Would work with him again.

A useful first conversation

Let’s find your next email revenue opportunity.

Optional · Email revenue estimator

What would a few more points be worth?

Four figures from your own store, and one “what if”. These are example figures: replace them with yours. Nothing you type leaves this page.

If email’s share were 20% instead of 15%

$9,375more from email in a typical month

  • Over twelve such months$112,500
  • Extra orders a month, at your average order value117
  • One more order a month from every213 subscribers

An illustration, not a forecast or a promise. It is arithmetic on the figures you enter, and it assumes everything that is not email stays as it is. It cannot see your account, and results vary by engagement.

Talk these numbers through with Josh

01 · Potential engagement

Want to discuss working together?

For established ecommerce brands considering a project or ongoing Klaviyo engagement.

Book a discovery call
02 · Focused advice

Have a specific problem?

Book a paid consultation for direct advice on a defined Klaviyo, retention or deliverability issue.

Book a paid consultation

Discovery callBooked through Calendly

The calendar loads here as you reach it.

Calendar not showing? Open it on Calendly

★★★★★ Client feedback on Upwork
“Joshua explained everything clearly, answered all of our questions, and provided actionable recommendations that we can implement right away.”

30 minute consultation

View review excerpt

Screenshot excerpt from client feedback. Wording unchanged. Scroll across on smaller screens to read.

Client feedback excerpt for 30 minute consultation. Joshua explained everything clearly, answered all of our questions, and provided actionable recommendations that we can implement right away.

Josh R. BlackettKlaviyo specialist

Book a call