Tomasz Sobon

Available to hire

Experience Level

Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
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Work Experience

Software Engineer at IDEEZA
March 1, 2015 - May 1, 2017
Designed, developed, and maintained mobile applications for Android and iOS using React Native, Flutter and native frameworks. Implemented new features and optimized app performance, improving user experience and reducing crash rates. Evaluated quality of assigned projects to ensure successful and timely delivery. Collaborated with QA personnel and clients to communicate project status and resolve issues effectively. Integrated REST APIs and third-party services (payment gateways, push notifications, analytics) into mobile apps. Delivered weekly status reports and applied strong escalation skills to handle critical project challenges. Mentored junior developers on mobile development best practices and code reviews. Collaborated with cross-functional teams to design, implement, and optimize features for diverse app projects. Conducted thorough testing and debugging to maintain high code quality and reduce app crashes.
Shopify & Web Developer at MoenCo Agency
May 1, 2017 - August 1, 2022
Rebuilt legacy codebase using the MERN/MEVN stack (MongoDB, Express.js, React.js/Vue.js, Node.js), resulting in a 50% faster load time and a measurable increase in user engagement. Developed responsive, mobile-first UI components to improve accessibility and reach, especially among mobile shoppers. Built Mobile application with Flutter and React Native. Implemented dynamic filtering, product recommendation systems, and cart persistence to streamline the eCommerce experience. Deployed applications on AWS EC2 and S3 with CloudFront CDN integration, ensuring scalability, uptime, and security. Worked cross-functionally with marketing to integrate tracking pixels, conversion events, and A/B testing infrastructure. Designed and developed multiple Shopify web stores tailored to client requirements, focusing on user experience and brand consistency. Customized Shopify themes, integrated third-party apps, and implemented custom functionalities to enhance store performance and scalability. Optim
CRM & Full Stack Developer at CRMTogether
August 1, 2022 - August 1, 2024
Developed and customized enterprise-level CRM solutions for mid-size and large clients using HubSpot CRM and Creatio (formerly bpm’online) platforms. Automated sales and marketing workflows with HubSpot’s Workflows, Sequences, and Custom Properties, boosting lead conversion rates by 30%. Created custom dashboards and reporting tools for pipeline visibility, integrating data from third-party platforms via REST APIs and webhooks. Led CRM integration projects with web platforms and internal tools, ensuring real-time synchronization of user data, contact history, and engagement metrics. Built custom web applications and client-facing modules using React.js and Vue.js, ensuring responsive design and seamless integration with CRM systems. Developed backend services and APIs using Node.js and Laravel, enhancing system scalability and performance. Implemented enterprise workflows and backend logic using C# (.NET) for clients requiring Microsoft ecosystem integration. Collaborated with busi
Senior Web Developer at Sterling Edmonton
August 1, 2024 - January 1, 2026
Led the end-to-end development of a fully custom real estate platform using Vue.js ( frontend ) and Laravel ( backend ), supporting property listings, user accounts, and advanced search filters. Designed and implemented an internal admin dashboard for area managers to monitor regional activity, user engagement, and sales insights. Built and deployed mobile applications with Capacitor, Flutter and React Native, enabling seamless cross-platform access to the real estate platform. Integrated AI-driven tools such as Flowchat and GPT-based assistants to enhance customer support, automate lead nurturing, and improve user engagement. Developed customizable HubSpot CMS templates, allowing marketing teams to quickly launch optimized landing pages, improving campaign deployment speed. Collaborated with UX designers and stakeholders to deliver a seamless, high-converting customer experience across web and mobile devices. Optimized site performance, implemented SEO best practices, and provided ong
Senior Web Developer at Freelancer
January 1, 2026 - Present
Successfully built and delivered a wide range of websites for multiple clients across various industries, ensuring high-quality and customized solutions. Leveraged expertise in platforms such as Shopify, WordPress, Webflow, and frameworks like Vue.js, React, and Angular to create responsive, user-friendly websites. Designed and developed mobile applications using Flutter and React Native, enabling cross-platform deployment with consistent performance and native-like user experience. Implemented SEO strategies and optimized site performance, increasing client visibility and user engagement. Maintained long-term relationships with clients, achieving high ratings and repeat business through exceptional service and communication. Built web and blockchain applications for clients in fintech and eCommerce. Integrated smart contracts ( Ethereum / Solidity ) with frontends using Next.js + TypeScript.

Education

BS Hons in Computer Sciences (BSCS) at The University of Hong Kong
January 1, 2011 - January 1, 2014

Qualifications

Add your qualifications or awards here.

Industry Experience

Software & Internet, Retail, Financial Services, Real Estate & Construction, Professional Services, Media & Entertainment, Other