Shopify Growth Engineering
We Build Shopify Stores That Are Engineered to Sell.
Custom Shopify development, conversion optimization, performance and growth marketing for ambitious eCommerce brands. From store architecture and Shopify development to CRO, SEO, Google Ads and Meta—SixthCrest combines engineering and growth under one roof.
Core Services Engineered For Growth
From initial architectural blueprinting to full-funnel digital marketing, we deliver end-to-end technology and revenue solutions.
Shopify Development & CRO
Custom theme buildouts, high-speed Liquid programming, seamless headless commerce, and conversion rate optimization that turns visitors into buyers.
- Custom Liquid Theme Engineering
- Checkout & Cart Conversion Rate Optimization
- 90+ Mobile Core Web Vitals Speed
- Custom App & Payment Gateway Integrations
Custom Website & SaaS Building
Full-stack web application development built with React, Node.js, and Python. We craft robust SaaS platforms, booking engines, and custom dashboards.
- React & Node.js Scalable Architecture
- SaaS Platforms & Administrative Dashboards
- RESTful API & Real-time WebSockets
- Cloud Deployment & Database Tuning
Search Engine Optimization (SEO)
Dominate organic search rankings with data-driven technical SEO audits, high-intent keyword strategies, structured schema, and content authority building.
- Comprehensive Technical SEO Audits
- E-commerce & Local SEO Optimization
- Page Speed & Core Web Vitals Optimization
- Authority Link & Schema Implementation
Online Ads & Digital Marketing
Data-driven Meta Ads (Facebook/Instagram) and Google Search/Shopping campaigns designed to maximize Return on Ad Spend (ROAS) and lower acquisition costs.
- Meta (FB/IG) High-Converting Ad Creative
- Google PPC & High-Intent Shopping Ads
- Audience Segmentation & Retargeting Funnels
- Multi-Touch Attribution & Analytics Setup
Business Case Studies & Flagship Engineering
We don't just show project screenshots — we measure our engineering by real business results, revenue growth, and live software performance.
+42% Conversion Rate
Politico Fit: Luxury Menswear Architecture
Challenge: Luxury menswear brand needed a premium Shopify experience supporting custom measurements and high-value orders.
What We Did: Shopify Liquid development · Custom measurement experience · Mobile CRO · Speed optimization · Meta ad funnel
100,000+ Health Records
RxDoctor: From Offline Clinic Software to Cloud SaaS
Challenge: Clinics struggled with offline legacy software, slow prescription generation, and high patient wait times.
What We Did: Cloud SaaS architecture · Sub-100ms digital prescription builder · WhatsApp appointment sync · Multi-branch doctor dashboards
Built & Operated by SixthCrest
Uptime Bunny: Linux Server & SSL Expiry Monitoring
Proof: We don't just build SaaS for clients — we operate our own distributed Linux server, SSL expiry, and Apdex rating performance monitoring platform.
What We Did: Linux server load monitoring · Automated SSL certificate expiration alerts · Apdex rating calculation · Free European & Global uptime pinging
10,000+ Monthly Bookings
GoRoomz: Multi-Location PG & Hostel Booking Platform
Challenge: Property owners needed real-time bed inventory, zero brokerage contact, and multi-city student search.
What We Did: Full-stack booking engine · Dynamic location search · Direct host contact UI · Multi-city inventory scale
+55% D2C Conversion Boost
Bananaz: Organic Banana Fibre Luxury Fashion
Challenge: Showcasing organic banana fibre textiles with high-end luxury storytelling and seamless checkout.
What We Did: Shopify custom Liquid theme · Sustainable fabric storytelling · Size fit recommender · Multi-currency checkout
The Complete 360° Shopify Brand Lifecycle
From initial market analysis and studio content creation to Shopify store engineering, Google ecosystem setup, and AI social marketing.
Market Analysis & Product Strategy
Deep competitor benchmarking, target audience profiling, positioning, and product design consultation for new or existing inventory lines.
Content Creation & Studio Media
In-house studio product photography, 4K video shoots, Instagram Reels, TikTok shorts, and AI-enhanced visual asset generation for high-impact storytelling.
Custom Shopify Store Build & CRO
Bespoke Liquid OS 2.0 theme development, checkout CRO, sub-second mobile load speeds, and payment gateway setup.
Google Ecosystem Dominance
Complete setup and optimization for Google My Business (GMB), Google Analytics 4 (GA4) e-commerce tracking, Search Console, and Merchant Center product feed sync.
Performance Paid Ads Funnels
ROAS-focused Google PPC Search & Shopping campaigns, Meta (FB/IG) ad funnels, retargeting sequences, and creative A/B testing.
Organic Social & AI Growth Engine
Ongoing Instagram and social media growth powered by in-house photographers, video creators, and generative AI content workflows.
Shopify Growth Engineering Packages
Transparent agency fees serving global eCommerce brands and ambitious Indian enterprises.
Shopify Launch
Ideal for brands launching custom Liquid themes, 95+ Core Web Vitals, and foundational CRO.
- Market & Competitor Audit
- Custom Shopify OS 2.0 Theme Build
- Basic Product Photography (Up to 10 SKUs)
- GA4 & Google Search Console Setup
- Core Web Vitals Speed Optimization
Shopify Growth
End-to-end growth: custom store, studio video shoots, CRO, and Meta/Google ad funnels.
- Everything in Shopify Launch
- Studio Photography + 4K Video Shoots + Reels
- AI-Enhanced Product Content Engine
- Google My Business (GMB) & Merchant Sync
- Meta & Google Ads Performance Funnel Setup
- Multi-Currency Payment Gateway Integration
Growth Partner Retainer
Dedicated engineering and full-funnel growth team scaling high-volume brands.
- Everything in Growth Lifecycle
- Monthly Studio Photography & Reel Production
- Daily Instagram Content Management
- Continuous Google & Meta Ad Optimization
- Agentic Commerce & AEO Custom Integrations
- Dedicated Slack Channel & Weekly Growth Calls
Interactive Project Cost Estimator
Select the services and scale you need to calculate an instant budget estimation for your next project.
1. Select Target Services:
2. Select Project Scope & Complexity:
- Selected Services:1 Service
- Project Complexity:Growth Level
- Support & Warranty:30-Day Included
Built by engineers who run their own products.
SixthCrest isn't a traditional outsourcing agency. We design, deploy and operate our own production platforms—including SaaS, eCommerce and monitoring products—and bring those engineering practices to client projects.
Operate Our Own Infrastructure
We run live production platforms (RxDoctor, UptimeBunny) with 99.9% SLAs and 100,000+ active records. We know what breaks under load.
Shopify Liquid & Core Web Vitals
Every Shopify store we build is engineered for sub-second mobile loads, 95+ Core Web Vitals, and maximum checkout conversion.
Growth & Full-Funnel Marketing
We combine store engineering with Meta Ads, Google Shopping PPC, and CRO under one roof so your technical investment drives real revenue.
Chandrasekhar Chejerla
"I didn't start SixthCrest as a traditional outsourcing agency. I built platforms like UptimeBunny and RxDoctor because I needed production software for real-world operations. The best way to understand production software is to actually run it. When you partner with SixthCrest, your store architecture and SaaS engineering are supervised directly by engineers who operate live platforms every single day."
What Brand Founders Say About Partnering With SixthCrest
Independent verified reviews from founders of Shopify stores, SaaS platforms, and retail brands.
"SixthCrest built our RxDoctor OPD platform with incredible speed and uptime. They handled multi-branch medical record sync flawlessly. Sub-100ms load speeds!"
"Our Shopify store Politico Fit saw a +42% conversion rate increase in the first 30 days after SixthCrest optimized our mobile Liquid theme and Meta ads funnel."
"SixthCrest helped us launch Bananaz.in with a compelling eco-luxury brand narrative. The banana fibre product gallery loads instantly, and global multi-currency checkout is seamless!"
Free 2026 Shopify Speed & Technical SEO Checklist
Not ready to submit a full project inquiry yet? Download our 15-point checklist used by SixthCrest to achieve 95+ Core Web Vitals and AEO readiness on Shopify.
Let's Discuss Your Next Big Project
Whether you need a high-converting Shopify store, a full-stack SaaS platform, rank-boosting SEO, or ROI ads marketing — our team is ready.
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Fast 24-Hour Proposal Turnaround
Receive a detailed roadmap and estimate within 1 business day.
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Full Source Code & Data Ownership
100% ownership of all repository code, assets, and ad accounts.
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Dedicated Project Manager
Direct communication via Slack, WhatsApp, and weekly updates.