Hire the Best Google Apps Developers

I help businesses eliminate manual work through automation and custom no-code apps. ⚡️ 8 hours of work → 30 minutes. ⚡️ 120-second app sync → 15 seconds, after optimizing performance. 💰 $2,880/year in tools → $240/year, with better performance. 💰 $9,600/year on a part-time VA → $240/year with Make com That’s what happens when your systems are built the right way. At Systent, we’ve helped 200+ businesses replace messy workflows with systems that actually fit how they operate. Most businesses we work with are dealing with: • Inventory or attendance errors that cost real money • Field staff collecting data on-site and waiting for the office to send a quote • Data scattered across spreadsheets, apps, and tools that never sync • Staff spending hours copy-pasting the same data every single day • Tools that don't talk to each other, causing delays and mistakes • Paying for software that forces your team to adjust instead of supporting your workflow • Stuck waiting on developers who take months to deliver something simple • Not fully maximizing tools you're already paying for like Google Workspace We fix that by building: • Inventory and attendance tracking • Custom internal apps (mobile & web) • Business process automation • Data entry systems • Google Workspace integrations • Custom CRMs TOOLS WE USE: • Airtable • Google AppSheet • Google Apps Script • Google Gemini • Make • n8n • Zapier OUR CLIENTS • Parcel Revenue • Capital Shack Funding • Diamond Support • Smithey Ironware • Mega A Builders WHAT OUR CLIENT SAY: ⭐️⭐️⭐️⭐️⭐️ “We tried CRMs like Pipedrive, Follow Up Boss, GoHighLevel, HubSpot, and Salesforce, but none matched our needs. The custom CRM that Systent built works perfectly for us.” ⭐️⭐️⭐️⭐️⭐️ “Systent helped us streamline our data entry. What used to take 8 minutes per deal now takes just 30 seconds. That means what used to take 8 hours of work can now be done in just 30 minutes.” ⭐️⭐️⭐️⭐️⭐️ “We were stuck with an app that took around 120 seconds to sync. After Systent optimized the expressions and data structure, the app now syncs in just 15 seconds.” Every week you wait is another week of hours lost to manual work. Let's get on a 30-minute call and map out what automation could look like for your business. 🚀

👋 Great to meet you. What are the chances that something in your Google Workspace mostly works — but it’s slow, fragile, confusing, or harder to trust than it should be? I specialize in Google Apps Script–powered automations across Google Sheets, Forms, Docs, Drive, Gmail, and Calendar — the kind that actually hold up over time. I’ve been doing this work full-time for over 5 years, across 119 completed Upwork contracts and 500+ projects outside of Upwork through my agency, Allen App Tools. What I’ve learned is this: Most people don’t just need automation — they need clarity, confidence, and ownership over systems their business now depends on. Many conversations start with some version of: “We rely on this sheet every day, but honestly we’re scared to touch anything.” — Sarah (Feb 2023) Or: “The last developer built it, but no one here understands how it works.” — Mike (Aug 2022) Or even: “It technically works… until it doesn’t.” — Jenna (Jan 2024) These aren’t edge cases. They’re patterns I’ve seen hundreds of times. That’s why my approach isn’t just about making something work — it’s about making sure it’s: ✅ understandable ✅ maintainable ✅ documented and safe to evolve as your business grows I help teams: ✅ Replace manual processes with reliable automation ✅ Clean up fragile or overgrown Google Sheets ✅ Build Apps Script systems that don’t break when requirements change ✅ Integrate Forms, Sheets, Gmail, Drive, APIs, and external tools ✅ Take ownership back from “black box” spreadsheets Very often, clients come to me after trying to DIY or after another developer stepped away: “We had something half-built and no idea how to move forward.” — Chris (May 2021) My job is to remove that uncertainty and replace it with something you can confidently run your business on. Communication & trust (this matters more than people admit) Good automation fails if it isn’t clearly explained. I put a heavy emphasis on: ✅ plain-language explanations ✅ walking through logic together ✅ making sure you understand what you’re paying for As one client put it: “You’re the first person who actually explained what’s going on in a way I can understand.” — Lauren (Nov 2022) I’d rather over-communicate early than leave you guessing later. This is not a side hustle for me — it’s my business. I’m here for long-term partnerships, not quick wins that leave you stuck later. “We’ve been burned by freelancers disappearing. That’s why this mattered to us.” — Tom (Jul 2020) When we work together, I care about where this system is headed, not just where it lands today. About me & my team When I’m not directly writing code, I’m building Allen App Tools, a Google Workspace automation company focused on giving people back time and sanity at work. You’ll always communicate with me directly — and when needed, I can bring in trusted developers from my team to help move faster without sacrificing quality. If you’re dealing with: 🤔 a Google Sheet that’s become mission-critical 🤔 an automation you don’t fully trust 🤔 or a process that’s eating hours every week I’d be happy to take a look and talk through options.

Expert in Google Sheets, App Script, Add-ons, Google Cloud and Suite Admin, MS Office VBA automation. Deep knowledge of MS and Google products, cloud technologies, domains portfolio management, web publishing. Certified Advanced Google Analytics and Google Tag Manager Fundamentals. Certified IT professional with extensive background in PM, IT management, development.

🎯 Implementing and fixing signals that turns lost clicks and leads into revenue you can measure. If Meta shows 30 conversions but your backend shows 80, you're not losing sales — you're losing the signal. When the signal breaks, your ad algorithm optimizes against bad data and your budget bleeds. I implement and fix that signal layer for agencies, eCommerce brands, and media buyers. One principle runs through all of it: stronger signals turn leads into revenue. Most specialists stop at "the tag fires." I make sure the right event reaches the right platform — deduplicated, consent-compliant, and matched to real revenue. WHAT I FIX ✅ GA4 & GTM implementation — clean tracking for every click, lead, and conversion ✅ Server-side tracking (Stape) — bypass ad blockers, iOS, and browser limits that kill your pixel ✅ Meta & TikTok CAPI — recover dropped signals, close the gap between ad platforms and your CRM ✅ Full tracking audits — expose data gaps, duplicate events, and broken funnels ✅ Consent Mode v2, cross-domain & UTM tracking — clean signals across every touchpoint ✅ Looker Studio dashboards — verified data your clients will actually trust RESULTS ⭐ Uncovered €9.4M in falsely recorded sales for a luggage brand ⭐ Lifted measured clicks from 65% → 95% by fixing server-side connections ⭐ Raised a tracking audit score from 72% → 90% ⭐ Cut wasted ad spend 20–40% and reporting time 80% across agencies BEST FIT You're running real ad spend and your backend numbers don't match your ad platform — and you want it fixed properly, not patched. If you just need a pixel pasted in once and never checked, I'm not your person. Your ads are either learning from clean data or optimizing blind. Let's fix the signals. 🚀

I help founders and managers obtain absolute clarity, recovered time, and the elimination of operational friction by translating manual and messy data into automated, intuitive, and structured systems you can actually trust. 📊 Built 50+ dashboards, automations, and reporting tools that clients use in their real day-to-day work 💼 Worked with all kinds of businesses, from marketing and operations to finance and more, translating messy reality into clean, structured systems 🏅 Earned Top Rated (Top 10%) in Spreadsheet Development in just 3 months by focusing on accuracy, stability, and long-term usability 🤝 Trusted for fast communication, curious questions, and solutions that fit each client’s unique needs and workflows I’m William, a spreadsheet and automation nerd in the best way: I like understanding how your work really runs, then quietly building tools that make it lighter, faster, and easier to manage. For the past 4+ years, I have helped businesses turn scattered, exhausting workflows into practical, result-focused systems. My expertise lies in cleaning up messy data architecture so it becomes completely reliable, automating repetitive tasks so they stop eating your week, and building streamlined, intuitive dashboards that actually drive daily decisions. My job is to handle the complex engineering in the background so you can recover your time, gain absolute clarity, and focus on driving the business forward, without ever having to become “the spreadsheet person. 📊 What I Can Build for You • Client & Lead Management Systems → Engineered CRM dashboards and lead pipelines that streamline follow-ups, centralize interactions, and drive conversions—making client management smooth and scalable. • Finance & Forecasting Dashboards → Developed automated tools to track budgets, cash flow, savings, and debt—built for clarity, daily decision-making, and long-term financial insight. • Sales & Performance Analytics → Designed actionable dashboards that spotlight team performance, product sales, and revenue growth—optimized for weekly, monthly, or annual tracking. • Inventory & Operations Trackers → Built end-to-end systems to monitor stock, trace production, and automate data capture—bringing structure, speed, and visibility to daily operations. • Marketing & Content Dashboards → Created data-driven tools to track lead growth, campaign results, YouTube insights, and content plans—automated and visual for instant clarity. • Custom Reporting & Automation Systems → Delivered fully tailored reports, planners, and trackers aligned to client workflows—no complexity, just fast insights and clean execution. 🛠 Tools & Tech I Use • Spreadsheets – Google Sheets & Excel: Advanced formulas, pivot tables, data validation, and other core spreadsheet functions • Automation & Scripting – Google Apps Script, Zapier, Make(.)com, Airtable Automations to eliminate manual workflows • Dashboards & Reporting – Aesthetic, intuitive dashboards in Google Sheets & Looker Studio with KPI trackers and real-time data updates • Data Analytics – From data cleansing and management to insights-driven recommendations • Integrations – QuickBooks, HubSpot, Mailchimp, ActiveCampaign, YouTube & OpenAI APIs, Google Analytics/Ads, custom API connectors • Google Workspace – Docs, Slides, Drive, Calendar for seamless document creation and sharing 🗣 Client Testimonials Summary “Working with William has been a fantastic experience for many clients. He’s highly skilled in Google Sheets and data management, and always delivers high-quality, reliable results. Clients appreciate how he listens closely to their goals and offers thoughtful recommendations to achieve the best outcomes. His dashboards are not only functional but also clean, intuitive, and easy to use, making data management effortless. William communicates clearly, responds quickly, and consistently meets deadlines. He goes above and beyond expectations, and clients frequently return to work with him again. A trusted expert for anyone looking to streamline their data and reporting workflows.” 🚀 Ready to Simplify, Automate & Visualize Your Data? If you’re losing hours fixing spreadsheets, updating numbers by hand, or second-guessing your dashboards, let’s fix that. Send me a quick message about your current setup and what you wish it could do instead. I’ll help you turn it into a clear, automated system you can rely on every day.

Your AI tool got you 80% there, let me handle the rest. I'm a Senior Full Stack developer with over 6 years of experience and over 90 completed projects. I specialize in fixing, finishing, and scaling apps built with AI tools. ✅ Bug fixing and debugging broken UI, logic errors, and API failures ✅ Code refactoring to transform AI-generated code into clean, modular, maintainable architecture ✅ Feature completion including real authentication, role-based access, file uploads, complex forms, and multi-step workflows ✅ Stripe and payment integration. Subscriptions, one-time payments, invoicing, and webhooks ✅ Database optimization. RLS policies, query performance, proper relationships, and migrations ✅ Security hardening. Exposed API keys, broken auth flows, input validation, and error handling ✅ Deployment and DevOps. Get your app live on Vercel, Netlify, or Railway ✅ API integrations to connect your app to external services, webhooks, and third-party tools ✅ Prompt engineering and AI coaching so your tools generate cleaner, reliable code from the start 🛠️ AI Tools: Lovable, Bolt.new, Cursor, Replit, v0, Base44, Windsurf, Claude Code, Firebase Studio ⚡ Frontend: React, Next.js, TypeScript, Tailwind CSS, ShadCN 🔧 Backend: Node.js, Supabase Edge Functions, Express, REST APIs 🗄️ Database: Supabase (PostgreSQL), Firebase, Prisma 🔐 Auth: Supabase Auth, NextAuth, JWT, OAuth providers 💳 Payments: Stripe (subscriptions, one-time, invoicing, webhooks) ☁️ Deployment: Vercel, Netlify, Railway, Replit Deployments Hear it from my clients: • "Julio built my app from scratch. He personally guided the whole process and kept me informed every step of the way. We met our deadline and came under budget." Kyle Horst, Owner of Kirksville • "The app Julio built has saved our business money and time. He had no problem understanding our business even though he had never worked in this field." Megan Ryan, PM at Deveraux Farms • "Julio understood our complex requirements, delivered quickly, and provided helpful improvements. Fantastic experience." Stan Levine, Braver Angels (Workshops & Support) What you get when working with me: ⭐ A free diagnostic. I'll tell you exactly what's broken and what it takes to fix it before you commit ⭐ Clean, refactored code that future developers (or AI tools) can actually work with ⭐ Clear communication with screen recordings and progress updates ⭐ Documentation of every change so you understand what was done and why ⭐ Training on how to prompt your AI tools more effectively going forward ⭐ Post-fix support to make sure everything stays stable 📩 Your AI tool started the job. Let me finish it. Message me with a link to your app or a description of what's broken, and I'll give you an honest assessment.