show us
what’s broken on your website.
we will fix it.
Your Shopify problem doesn’t need a 3-month agency engagement. It needs to get fixed.
Something slow, broken, inaccurate, or missing on your store can quietly cost you sales every day. Show us the problem on a 30-minute call ($49), and we’ll take it from there.
No retainer. No hourly billing. You pay the $49 as you book, credited in full if you hire us.
The timeline
Standard rates from $495.
Larger builds get their own timeline upfront.
HydroDevs is new.
David isn’t
David Mamrowicz, founder LinkedIn (opens in a new tab)
Former Vice President of Ecommerce at Sheertex, and over a decade dealing firsthand with the problems that show up when real stores scale: slow storefronts, unreliable tracking, conversion rate issues, theme limitations, dev work stuck in a backlog. That’s why there’s no two-week discovery process. An operator who’s seen the problem before can tell you quickly what it takes to fix it.
four steps, then it’s done
Every job runs the same route. No discovery phase, no proposal theater. The whole process, start to finish:
1.show us the problem
Book the Fix Call for $49, 30 minutes. You don’t need to know the technical cause. Show us what isn’t working, or what you want built, and we’ll figure out what it takes.
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For stores paying for traffic that lands on a slow site.
- Find what’s slowing your store down
- Cut unnecessary image, app, and theme bloat
- Improve Core Web Vitals and real-world load time
- Show you the before-and-after
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For stores spending on ads without numbers they can trust.
- Audit GA4, Meta Pixel, and purchase events
- Fix missing, duplicated, or inaccurate conversions
- Confirm Shopify and your ad platforms agree
- Verify the fix before handoff
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For stores where customers see something broken, confusing, or off-brand.
- Fix broken layouts, buttons, and storefront elements
- Fix pages that break on mobile
- Edit theme and template code directly
- Build what your theme editor won’t let you build
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For when something’s missing, not broken. Bundles, size guides, custom options, upsells, quizzes, landing pages.
- Show us what you want built
- We scope the cleanest way to build it
- Fixed price and timeline upfront; larger builds fall outside the 48-hour guarantee
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For the problem that doesn’t fit a category, or that you can’t name yet.
- Conversion problems you can see but can’t explain
- Accessibility, technical SEO, AEO
- Anything on your store that isn’t working right
- If it isn’t something we should take on, we say so and refund the $49
Built for established Shopify stores with real traffic, real customers, and problems worth fixing.
2.get your quote
One fixed scope, price, and delivery timeline within 24 hours of the call. No estimate ranges, no hourly meter. The number you approve is the number you pay.
If the work isn’t worth doing, or isn’t something we should take on, we’ll tell you straight and refund the $49.
from$495
standard fixes · one fixed price · quoted within 24 h
3.approve it
Your $49 comes off the invoice. Each job gets its own scope, price, and terms. If you come back, it’s because the last job was good, not because you’re locked in.
no retainer no hourly billing no long-term contract
4.we fix it
Most standard fixes ship within 48 hours of approval; larger builds get the timeline we quoted upfront. You see the before-and-after, and tracking fixes are verified before handoff.
Quoted as a 48-hour fix and we miss the deadline? You don’t pay for the fix.
three guarantees
put all the risk on us
hire us? the $49 comes off the bill.
Credited in full against your first invoice.
can’t take the job? you get the $49 back.
If the work isn’t worth doing, or isn’t something we should take on, we’ll tell you straight and refund the call.
quoted at 48 hours and we’re late? it’s free.
Miss an explicitly quoted 48-hour deadline and you don’t pay for the fix.
Paid as you book. Credited in full if you hire us.
what people who’ve worked with David say
Unedited notes from people at Sheertex, Google, Meta, TikTok and elsewhere who worked with him directly, before HydroDevs existed.
“David has a remarkable ability to launch, scale, and optimize ecommerce platforms with both precision and vision — balancing technical depth with a sharp understanding of customer behavior and business impact. Under his leadership, SRTX and its cornerstone brand, Sheertex, achieved record-setting results in the Canadian DTC market.”
“I have seen first hand how David consistently delivers strong, measurable results. Under his leadership, SRTX achieved significant efficiency gains, outperforming their previous agency approach. He’s the kind of partner who turns challenges into opportunities and always keeps the bigger picture in focus.”
“David brought a unique combination of strategic thinking and technical problem-solving to the team. He had a real talent for breaking down complex technical issues into simple, actionable solutions—always with the end user in mind. His leadership in eCommerce and Customer Experience was nothing short of exceptional.”
“David was a pleasure to work with. He is professional, strategic, and results-driven. A sharp marketer and leader who clearly knows how to drive results.”
“David is an exceptional technology leader and an innovative early adopter. Collaborating with him on implementing Siena AI was seamless, driven by his proactive approach and deep understanding of the CX space. He’s the type of partner who makes collaboration enjoyable and impactful.”
“I had the pleasure of working with David during my time at TikTok. David was one of the earliest adopters of TikTok Shops, always ahead of the curve when it came to testing new features and driving results. Any team would be lucky to have him leading their paid social efforts.”
“David has multi-faceted expertise. He helped us refine our brand messaging, brand strategy and website, and communicate the direction to the design and marketing teams. David gave great advice on marketing channels and sales strategy while always generous with his time, kind and good humoured.”
“I’ve had the pleasure of working with David and can confidently say that he is one of the most positive and solutions-focused leaders I’ve come across in D2C space. His energy is contagious, and it sets the tone for the entire team—motivating everyone to bring their best, no matter the challenge.”
“I cannot recommend David enough! He was always available with a solution with any problems my team had and would keep us appraised of any updates. He was a joy to work with and constantly went well above his responsibilities and obligations.”
“I had the privilege of working with David for many projects from assistance collecting data, support in calculating key performance metrics, understanding our key platforms functionalities, to making sense of complex business-model flows.”
“David is one the most helpful and knowledgeable people when it comes to understanding the business. As someone in FP&A, I’ve often leaned on David to help make sense of D2C metrics and the broader ecommerce picture — and he consistently delivers thoughtful, clear input that makes my work better.”
“David has always been someone I could count on — sharp, driven, and genuinely passionate about delivering results. As he evolved into a strong leader, I also found myself learning from his insights and approach to e-commerce and customer experience. His dedication, adaptability, and collaborative spirit make him a true asset.”
“David is one of those Leaders that you really enjoyed working with. Someone who inspired, motivated, and coached his team, would have a great finished product, and could do the hands on work if/when needed. He is someone who would always get things done.”
“I worked with David directly on a licensed brand deal. It needed a pretty quick turn around and was also a new experience for our team at the time. His attention to detail, easy going nature, while having passion for his work is very refreshing to work alongside!”
“He’s thoughtful, detail-oriented, and always brings a strong sense of ownership to his work. You can count on him to follow through, and make sure things are done well, without ever losing sight of the bigger picture.”
“David brought clarity, direction, and a results-driven mindset to everything he touched. He understands what today’s customer expects and how to translate that into scalable strategies. Under his leadership, we’ve seen real progress and not just in digital performance, but in how our teams think about and deliver the customer experience.”
“David demonstrated strong attention to detail and a clear commitment to delivering quality results. It was a pleasure working with you, David!”
“I greatly valued the opportunity to collaborate with David. I consistently appreciated our strong working relationship and the insightful discussions we shared. David fostered an environment of ease and transparency, which significantly streamlined our interactions and enabled us to successfully advance numerous projects for him and his team.”
“David is exceptionally knowledgeable and well-rounded, with a calm and steady presence that is invaluable in a fast-paced, high-pressure environment.”
“David did an excellent job of keeping the bigger picture in mind, helping the team stay focused and aligned during some fast-moving and occasionally ambiguous projects.”
straight answers
- Free calls fill up with window-shoppers. A $49 call books store owners who are ready to act, which means we spend the full 30 minutes diagnosing and scoping your actual work, not selling you a retainer. No pitch deck, just scope and price. Credited if you hire us, refunded if we can’t take the job.
- As you book. The $49 is taken when you pick your time, so the slot is confirmed the moment you’re done, with no invoice chasing and no surprise later. Credited in full against your first invoice if you hire us, refunded if we can’t take the job.
- Standard rates start at $495. You’ll get a quote with a scope and flat price within 24 hours of the call, before you commit to anything. No hourly billing or hidden fees, ever.
- Show us anyway. Speed, tracking, and front-end issues cover a lot of Shopify work, but not everything. If we can’t take it on, we’ll tell you and refund the $49.
- No. Each job gets its own scope, price, and terms, so there’s no retainer to sign.
- Yes, priced job by job, not through a standing retainer. If you come back, it’s because the last job was good, not because you’re locked in.
- No. The initial call is scoped around a specific problem or build. We do however offer full website and funnel audits. Contact our audit team at audits@hydrodevs.com.
stop leaving the problem on your backlog
Thirty minutes to scope it, 24 hours for a price, most fixes done in 48.
not ready to book?
Get the 3-minute Shopify self-check we use to spot common speed, tracking, mobile, and conversion problems.