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Great dashboards don’t just show numbers; they tell a story your team can act on. I design dashboards in Looker Studio Pro and BI tools that unify marketing, product, and financial data into one clear source of truth. With 15+ years of experience - and an MBA from Columbia Business School - I deliver dashboards that are both technically solid and business-ready. ✅ 𝐖𝐡𝐚𝐭 𝐈 𝐃𝐨 • Looker Studio dashboard design (executive scorecards, marketing ROI, SaaS KPIs) • GA4 setup, event tracking, and funnel analysis • Conversion tracking & attribution modeling (ads, spend, ROAS, cohorts) • SQL + BigQuery data models for custom reporting • Self-service analytics setup (templates, guides, automation) 🛠 𝐓𝐨𝐨𝐥𝐬 & 𝐏𝐥𝐚𝐭𝐟𝐨𝐫𝐦𝐬 Looker Studio • GA4 • Google Tag Manager • SQL • BigQuery • dbt • Snowflake • Power BI • Tableau • Google Sheets • Excel • Zapier • Facebook Ads • Google Ads • TikTok • YouTube • Shopify • Amazon 🏢 𝐈𝐧𝐝𝐮𝐬𝐭𝐫𝐢𝐞𝐬 SaaS • eCommerce • Marketing Agencies • Healthcare • Education • Nonprofit • Retail 💬 𝐂𝐥𝐢𝐞𝐧𝐭 𝐅𝐞𝐞𝐝𝐛𝐚𝐜𝐤 ⭐⭐⭐⭐⭐ “Out of the dozens of people I’ve hired on Upwork, Zach is hands down the BEST.” ⭐⭐⭐⭐⭐ “He built the most amazing dashboard - it’s now the heart of our business.” 🚀 𝐂𝐨𝐧𝐭𝐚𝐜𝐭 𝐌𝐞 Let’s build a dashboard your whole team trusts.

𝗧𝗿𝗮𝗻𝘀𝗳𝗼𝗿𝗺𝗶𝗻𝗴 𝗕𝘂𝘀𝗶𝗻𝗲𝘀𝘀 𝗢𝗯𝗷𝗲𝗰𝘁𝗶𝘃𝗲𝘀 𝗶𝗻𝘁𝗼 𝗦𝗰𝗮𝗹𝗮𝗯𝗹𝗲, 𝗣𝗿𝗼𝗳𝗶𝘁𝗮𝗯𝗹𝗲, 𝗥𝗲𝗹𝗶𝗮𝗯𝗹𝗲 𝗦𝗼𝗳𝘁𝘄𝗮𝗿𝗲 𝗦𝗼𝗹𝘂𝘁𝗶𝗼𝗻𝘀 𝗮𝗻𝗱 𝗜𝗻𝘁𝗲𝗹𝗹𝗶𝗴𝗲𝗻𝘁 𝗦𝘆𝘀𝘁𝗲𝗺𝘀 For fast-scaling startups to 𝐅𝐨𝐫𝐭𝐮𝐧𝐞 𝟓𝟎𝟎 𝐞𝐧𝐭𝐞𝐫𝐩𝐫𝐢𝐬𝐞𝐬s, I’ve created and refined digital architectures that drive results, not just code. My role as an 𝐄𝐧𝐭𝐞𝐫𝐩𝐫𝐢𝐬𝐞 𝐒𝐨𝐥𝐮𝐭𝐢𝐨𝐧𝐬 𝐀𝐫𝐜𝐡𝐢𝐭𝐞𝐜𝐭 and 𝐈𝐓 𝐭𝐞𝐚𝐦 𝐥𝐞𝐚𝐝𝐞𝐫 goes beyond delivering technical specifications. I build systems that grow businesses, streamline operations, and unlock untapped value. Over the past two and one half decades, I’ve led 𝟓𝟎+ 𝐞𝐧𝐭𝐞𝐫𝐩𝐫𝐢𝐬𝐞-𝐥𝐞𝐯𝐞𝐥 𝐩𝐫𝐨𝐝𝐮𝐜𝐭 builds, platforms that power millions of users, automate critical workflows, and enhance operational efficiency. My approach is business-first, with technology as the execution engine. Every line of code, every infrastructure decision, and every integration is grounded in a single purpose: driving measurable and positive business outcomes. What I Bring to the Table 𝟏. 𝐒𝐭𝐫𝐚𝐭𝐞𝐠𝐢𝐜 𝐒𝐲𝐬𝐭𝐞𝐦𝐬 𝐀𝐫𝐜𝐡𝐢𝐭𝐞𝐜𝐭𝐮𝐫𝐞 Expertise in distributed systems, microservices, and multi-tenant SaaS platforms. Architected cloud-native and hybrid solutions using AWS, GCP, Azure, Citrix and VMware, with a strong emphasis on scalability, performance, and maintainability. 𝟐. 𝐂𝐫𝐨𝐬𝐬-𝐏𝐥𝐚𝐭𝐟𝐨𝐫𝐦 𝐄𝐧𝐠𝐢𝐧𝐞𝐞𝐫𝐢𝐧𝐠 𝐋𝐞𝐚𝐝𝐞𝐫𝐬𝐡𝐢𝐩 Oversaw full product lifecycles from ideation to launch, leading cross-functional teams across frontend (React.js, Vue, Angular), backend (Node.js, Python/Django, PHP/Laravel, Go), mobile (React Native, Kotlin, Swift), and DevOps (Docker, Kubernetes, CI/CD). 𝟑. 𝐀𝐏𝐈-𝐅𝐢𝐫𝐬𝐭 𝐁𝐮𝐬𝐢𝐧𝐞𝐬𝐬 𝐋𝐨𝐠𝐢𝐜 & 𝐈𝐧𝐭𝐞𝐠𝐫𝐚𝐭𝐢𝐨𝐧𝐬 Designed and integrated with complex ecosystems, ERP, CRM, payment gateways, 3PL, IoT platforms, MS SQL replication, benefit administration via REST API, XML or CSV data exchange, and AI/ML pipelines, to unify operations and data streams. 𝟒. 𝐃𝐚𝐭𝐚-𝐃𝐫𝐢𝐯𝐞𝐧 𝐃𝐞𝐜𝐢𝐬𝐢𝐨𝐧 𝐀𝐫𝐜𝐡𝐢𝐭𝐞𝐜𝐭𝐮𝐫𝐞 Built analytics systems and event-driven architectures using Kafka, Redis, PostgreSQL, MongoDB, Google Analytics, and BigQuery to enable real-time insights and predictive automation. 𝟓. 𝐄𝐧𝐭𝐞𝐫𝐩𝐫𝐢𝐬𝐞 𝐒𝐞𝐜𝐮𝐫𝐢𝐭𝐲 & 𝐂𝐨𝐦𝐩𝐥𝐢𝐚𝐧𝐜𝐞 Implemented secure-by-design principles, GDPR, HIPAA / HITECH compliance, OAuth2/JWT protocols, and enterprise-grade identity management with SSO, RBAC, and Zero Trust Architecture. 𝐁𝐮𝐬𝐢𝐧𝐞𝐬𝐬 𝐈𝐦𝐩𝐚𝐜𝐭 𝐇𝐢𝐠𝐡𝐥𝐢𝐠𝐡𝐭𝐬 ✅ Developed multiple secure portals integrated with third party benefit administration systems via REST API, CSV or MS SQL replication; ✅ Designed the core architecture for a FinTech platform that scaled from 0 to 2 M+ users, supporting high-concurrency transactions with bank-grade security. ✅ Led the digital transformation of a legacy healthcare provider system into a HIPAA-compliant, AI-powered SaaS platform. ✅ Architected a logistics platform used by global freight companies to track, optimize, and automate supply chain operations in real time. ✅ Enabled a retail marketplace to reduce infrastructure costs by 35% and increase page load speeds by 60% through cloud refactoring and caching strategies. 📈 𝐋𝐞𝐭’𝐬 𝐁𝐮𝐢𝐥𝐝 𝐰𝐢𝐭𝐡 𝐏𝐮𝐫𝐩𝐨𝐬𝐞 I partner with founders, CTOs, and business leaders to co-create systems that solve real business problems. Whether you're launching a new platform, modernizing legacy architecture, or scaling infrastructure to meet demand, I bring the strategic foresight and technical precision gained from over two-decades of custom software and IT leadership in service to your needs.. I’m confident that one call will be sufficient to validate my experience and capabilities. Let’s architect the future of your business. Full-Stack Web Developer, Mobile App Developer, React.js Developer, React Native Developer, iOS & Android App Development, Cross-Platform App Development, API Development & Integration, Custom Web Application Development, SaaS Application Development, E-commerce App Development, UI/UX Implementation, White-label App Development, Marketplace Development, API-driven Mobile Apps, Mobile App Redesign, End-to-End App Development, Native iOS (Swift/SwiftUI), Native Android (Kotlin), UI Implementation for Mobile, Healthcare & Fitness Apps, Backend Development, Python Django, MVP Development & Prototyping.

I help businesses fix broken tracking, attribution issues, and platform integrations. Most of the work I do is in the middle of a tech stack: websites, ad platforms, analytics tools, CRMs, CDPs, eCommerce platforms, databases, and custom APIs. If two systems need to share data, or if the data being reported does not match what is actually happening, I can usually help figure out why. I am a full-stack engineer with 13+ years of experience building and maintaining production systems. I work across website code, checkout flows, GTM, server-side tracking, APIs, webhooks, databases, cloud infrastructure, and reporting. I am also the lead developer for ONNO, a multi-million-dollar eCommerce brand, where I built and maintain the storefront, tracking setup, server-side events, attribution flow, and data pipelines. Common issues I work on: Meta Ads is under-reporting purchases or leads Meta CAPI is installed, but deduplication or event match quality is not right GA4 purchases, leads, or key events are missing or inaccurate Google Ads conversions do not match backend sales Shopify or WooCommerce tracking broke after a site, theme, plugin, or checkout update GTM tags are firing twice, not firing at all, or sending the wrong data Segment, HubSpot, Klaviyo, Salesforce, or another platform is receiving incomplete or incorrect data Two systems need to sync, but the native integration is limited or does not exist Reports do not line up with actual sales, leads, or customer activity A Zapier, Make, or n8n automation mostly works, but fails in edge cases How I can help: Attribution and tracking audits I trace the data from the website through GTM, GA4, Meta, Google Ads, server-side tracking, checkout, backend systems, and reporting. The goal is to find where the data is getting lost, duplicated, or changed. Meta CAPI and server-side tracking I build and troubleshoot Meta CAPI, server-side GTM, Stape, GA4, Google Ads Enhanced Conversions, TikTok events, and custom server-side event flows. I focus on clean events, reliable deduplication, and better first-party data. Platform integrations I connect platforms using native integrations, Zapier, Make, n8n, webhooks, REST APIs, or custom code. This can include websites, CRMs, CDPs, ad platforms, eCommerce stores, databases, internal tools, and reporting systems. eCommerce tracking and data flows I work with Shopify, WooCommerce, WordPress, and custom checkout flows. I can help track purchases, checkout steps, customer data, lead events, cart activity, and ad platform conversions. Custom API and webhook work When the standard integration is not enough, I can build the missing piece. That may be a webhook handler, API connection, data transformation, middleware, event router, backend script, or lightweight internal tool. Reporting and data cleanup I help clean up duplicate events, missing parameters, broken UTMs, inconsistent customer IDs, bad attribution, and mismatches between GA4, ad platforms, CRMs, CDPs, and backend sales data. Tools and platforms I work with: Meta CAPI, Facebook Pixel, Google Ads Enhanced Conversions, GA4, GTM, server-side GTM, Stape, Segment, HubSpot, Salesforce, Klaviyo, Shopify, WooCommerce, WordPress, BigQuery, Looker Studio, Zapier, Make, n8n, REST APIs, webhooks, AWS, GCP, and custom code. Why clients work with me: I am not just looking at one tag or one platform. Tracking and integration problems usually involve several systems at once, so I look at the full path the data takes. Because I am a full-stack engineer, I can usually debug past the surface-level setup and get into the actual code, API calls, payloads, server logs, and data flow when needed. If your tracking is off, your attribution does not make sense, or your platforms are not syncing correctly, send me a message with what is going on. I can help find where it is breaking and what it would take to fix it.

Build production-ready AI agents, RAGs with LangChain + GPT for SaaS companies. Cut dev time 50% and scale to tens of thousands of users. Recent client feedback: “Zak was awesome! He delivered exactly what I asked faster than I expected! He is extremely knowledgeable” I don’t just write code, I solve business problems. Whether you need an AI agent handling customer inquiries 24/7, a custom workflow that eliminates manual tasks, or a scalable web application, I deliver solutions that save time and generate ROI. What I specialize in: 🤖 AI Agents & Automation by • Custom ChatGPT/Claude integrations • Workflow automation (Zapier / n8n alternatives) • Data processing pipelines • Lead generation bots ⚡ Modern Full-Stack Development Turning AI-generated prototypes into real applications - Yes, Vibe coding got you 80% there in 2 hours, but now you need the other 20% that actually matters: security, authentication, error handling, database design, and deployment that doesn’t crash at 3am • Next.js 14+ with App Router • React/TypeScript applications • Node.js/Python APIs • Real-time applications (WebRTC, WebSockets) ☁️ Cloud & Infrastructure • AWS serverless architecture • Database optimization (PostgreSQL, DynamoDB) • API design and integration • Performance optimization My approach: Fixed-price or hourly projects with clear deliverables. You get working software, not just hours logged. I handle the technical complexity so you can focus on growing your business. Ready to automate your next bottleneck or build something that scales? Let’s talk.

As a seasoned IT professional with 10 years of working experience, I took a journey along with the industry's progression and always refreshed my skills to keep up with the trend. Starting my career as an application developer, I moved to full stack and back end development then recently moved again to machine learning. What's unchanged in the changing time is the passion for problem solving and continuous learning. Whether the task is translating ambiguous business goals to technical design and execution, or doing data analysis to guide decision making, or creating and executing a roadmap for the team, I had experience and did them well. Whether it's a 0 to 1 project (i.e rapid prototyping MVP) or one to many (high availability service) projects, I have first hand experience. This is not to mention various team roles like scrum master, component lead or retrospective coordinator I did in agile development teams.

𝗘𝘅𝗽𝗲𝗿𝘁 ⏱ 𝘁𝗶𝗺𝗲 𝘀𝗮𝘃𝗶𝗻𝗴𝘀 ⏱ 𝗳𝗼𝗰𝘂𝘀𝗲𝗱 𝗚𝗼𝗼𝗴𝗹𝗲 𝗦𝗵𝗲𝗲𝘁𝘀 𝗮𝘂𝘁𝗼𝗺𝗮𝘁𝗶𝗼𝗻. 📈 𝟮𝟱𝟬+ 𝗵𝗮𝗽𝗽𝘆 𝗰𝗹𝗶𝗲𝗻𝘁𝘀 𝘀𝗲𝗿𝘃𝗲𝗱 𝗮𝗿𝗼𝘂𝗻𝗱 𝘁𝗵𝗲 𝘄𝗼𝗿𝗹𝗱. 🌎 𝗢𝗯𝘀𝗲𝘀𝘀𝗲𝗱 𝘄𝗶𝘁𝗵 𝗴𝗲𝘁𝘁𝗶𝗻𝗴 𝗶𝘁 𝗱𝗼𝗻𝗲 𝗽𝗲𝗿𝗳𝗲𝗰𝘁𝗹𝘆 𝘁𝗵𝗲 𝗳𝗶𝗿𝘀𝘁 𝘁𝗶𝗺𝗲, 𝗼𝗻-𝘁𝗶𝗺𝗲, 𝗲𝘃𝗲𝗿𝘆-𝘁𝗶𝗺𝗲 𝘁𝗼 𝘀𝗮𝘃𝗲 𝘆𝗼𝘂 𝗮𝗻𝗱 𝘆𝗼𝘂𝗿 𝘁𝗲𝗮𝗺 𝗮 𝘁𝗼𝗻-𝗼𝗳-𝘁𝗶𝗺𝗲! 🎯 📞 Just invite me to your job on Upwork, and we can chat about exactly how we can automate your business processes together. 📞 ❝ 𝘿𝙚𝙣𝙣𝙞𝙨 𝙬𝙖𝙨 𝙖𝙣 𝙖𝙗𝙨𝙤𝙡𝙪𝙩𝙚 𝙥𝙡𝙚𝙖𝙨𝙪𝙧𝙚 𝙩𝙤 𝙬𝙤𝙧𝙠 𝙬𝙞𝙩𝙝! 𝙒𝙚 𝙝𝙖𝙙 𝙖 𝙘𝙤𝙢𝙥𝙡𝙞𝙘𝙖𝙩𝙚𝙙 𝙣𝙚𝙚𝙙 𝙩𝙤 𝙩𝙪𝙧𝙣 𝙖 𝙘𝙤𝙡𝙡𝙚𝙘𝙩𝙞𝙤𝙣 𝙤𝙛 𝙨𝙥𝙧𝙚𝙖𝙙𝙨𝙝𝙚𝙚𝙩𝙨 𝙞𝙣𝙩𝙤 𝙖𝙣 𝙖𝙪𝙩𝙤𝙢𝙖𝙩𝙚𝙙 𝙨𝙮𝙨𝙩𝙚𝙢. 𝘿𝙚𝙣𝙣𝙞𝙨 𝙚𝙭𝙚𝙘𝙪𝙩𝙚𝙙 𝙩𝙝𝙚 𝙥𝙧𝙤𝙟𝙚𝙘𝙩 𝙛𝙡𝙖𝙬𝙡𝙚𝙨𝙨𝙡𝙮! 𝙃𝙚 𝙬𝙖𝙨 𝙞𝙣𝙘𝙧𝙚𝙙𝙞𝙗𝙡𝙮 𝙧𝙚𝙨𝙥𝙤𝙣𝙨𝙞𝙫𝙚 𝙖𝙣𝙙 𝙪𝙣𝙙𝙚𝙧𝙨𝙩𝙤𝙤𝙙 𝙤𝙪𝙧 𝙣𝙚𝙚𝙙𝙨 𝙧𝙞𝙜𝙝𝙩 𝙖𝙬𝙖𝙮. 𝙄 𝙬𝙞𝙡𝙡 100% 𝙗𝙚 𝙬𝙤𝙧𝙠𝙞𝙣𝙜 𝙬𝙞𝙩𝙝 𝙝𝙞𝙢 𝙖𝙜𝙖𝙞𝙣! ❞ 🗣 Michelle Mundy - Executive Director, Production Operations - Left Field Labs 🗣 Highlights of what my clients love about working with me and my team: 🔸 Exceptional experience backed understanding of what’s possible, what’s challenging and how to create a tailored solution that fits your unique situation. 🔸 Top-notch communication skills. 2 hours or less response time. Two weekly updates at minimum that cover progress, budget concerns and other relevant info. Transparency is key! 🔸 I am solution-focused. We push hard to find a way to make things work; we don’t just write things off as impossible due to a lack of imagination or laziness. 🔸 50+ years of experience between myself and my carefully hand-picked and vetted team members (we work with the best who genuinely know what they’re doing!) 🔸 Peace of mind. Have a problem? I’ve got your back and will get it fixed reliably and quickly. I excel at freeing up time in your business so that you and your team can stay in your genius-zones, doing the things that cannot be automated (yet). Here are a few examples of some recent wins I’ve created for my clients; ⏱ Saved Evolved Finance’s team over 50+ hours of manual data entry every day ⏱ Saved our client Alec 40+ hours per month avoiding manually updating Google Calendar events based on his master spreadsheet ⏱ Saved our client John and his team 30+ hours of manual time needed to create folder structure in Google Drive. Highlights of the type of work I commonly support my clients with include: ☑️ Google Sheet Automations, Google Sheets Scripts / Macros & Google Apps Script ☑️ Google Workspace Automation (Drive, Sheets, Docs, Forms, Calendar, Gmail) ☑️ Reporting Automation & Dashboard Creation ☑️ Manual Data Entry Elimination ☑️ Automated Google Calendar Event Creation ☑️ Automated Emails Based On Google Form Submissions ☑️ Google Drive PDF Backups & Saving Automations ☑️ Social Media Platform Analytics/Reporting In Google Sheets (Facebook, Instagram, LinkedIn) ☑️ Automated Text Messaging Solutions Triggered in Google Workspace (With Twilio) ☑️ Zapier, Make.com & Segment.com Related Work Typical results of working together include: ✅ Increased Revenues & Major Ongoing Time Savings ✅ Less Mistakes, Greater Accuracy (Humans Make Mistakes, Automations Don’t) ✅ Less Headaches, More Peace Of Mind & Operations Running More Smoothly Thanks for taking the time to learn more about me! Let me help you win that time and more back. Let’s chat about your project together. Just invite me to your job on Upwork. Talk soon. Dennis Krinitsyn ❝ 𝘿𝙚𝙣𝙣𝙞𝙨 𝙙𝙞𝙙 𝙖 𝙥𝙝𝙚𝙣𝙤𝙢𝙚𝙣𝙖𝙡 𝙟𝙤𝙗 𝙬𝙞𝙩𝙝 𝙤𝙪𝙧 𝙥𝙧𝙤𝙟𝙚𝙘𝙩. 𝙃𝙚 𝙬𝙖𝙨 𝙧𝙚𝙨𝙥𝙤𝙣𝙨𝙞𝙫𝙚, 𝙪𝙣𝙙𝙚𝙧𝙨𝙩𝙖𝙣𝙙𝙞𝙣𝙜, 𝙩𝙞𝙢𝙚𝙡𝙮, 𝙞𝙣𝙘𝙤𝙧𝙥𝙤𝙧𝙖𝙩𝙚𝙙 𝙛𝙚𝙚𝙙𝙗𝙖𝙘𝙠, 𝙖𝙣𝙙 𝙤𝙫𝙚𝙧𝙖𝙡𝙡 𝙥𝙧𝙤𝙫𝙞𝙙𝙚𝙙 𝙖 𝙝𝙞𝙜𝙝-𝙦𝙪𝙖𝙡𝙞𝙩𝙮 𝙙𝙚𝙡𝙞𝙫𝙚𝙧𝙖𝙗𝙡𝙚 𝙗𝙚𝙛𝙤𝙧𝙚 𝙤𝙪𝙧 𝙖𝙜𝙧𝙚𝙚𝙙 𝙙𝙚𝙖𝙙𝙡𝙞𝙣𝙚. 𝙄 𝙝𝙞𝙜𝙝𝙡𝙮 𝙧𝙚𝙘𝙤𝙢𝙢𝙚𝙣𝙙 𝘿𝙚𝙣𝙣𝙞𝙨 𝙖𝙣𝙙 𝙩𝙝𝙚 𝙩𝙚𝙖𝙢 𝙩𝙤 𝙖𝙣𝙮𝙤𝙣𝙚 𝙞𝙣𝙩𝙚𝙧𝙚𝙨𝙩𝙚𝙙 - 𝙄 𝙘𝙤𝙪𝙡𝙙 𝙣𝙤𝙩 𝙗𝙚 𝙢𝙤𝙧𝙚 𝙞𝙢𝙥𝙧𝙚𝙨𝙨𝙚𝙙 𝙬𝙞𝙩𝙝 𝙩𝙝𝙚𝙞𝙧 𝙖𝙥𝙥𝙧𝙤𝙖𝙘𝙝 𝙖𝙣𝙙 𝙬𝙤𝙧𝙠. ❞ 🗣 Alec Harrises - Program Administrator - HubSpot 🗣