sebastian walach

sebastian walach


I'm Sebastian. If you like what you see, feel free to contact me.

This is what I do...

Shopify / Shopify Plus Development and Consultancy

BigCommerce Development

WordPress Development

eCommerce Integrations

Shopify Apps

CRM and Email Integrations

Email Marketing and Automations (Klaviyo, Mailchimp, Dotdigital, Campaign Monitor, ActiveCampaign)

eCommerce Project Management

eCommerce Project Delivery

eCommerce Technical Direction

eCommerce Solution Design

Custom domain setup

Shopify Trainings

BigCommerce Trainings

Facebook/Instagram/Twitter/Google Ads

Google Analytics

Search Engine Optimization (SEO)

Search Engine Marketing (SEM)

Technologies that I use...

HTML5, CSS3, Liquid, Shopify Scripts, Shopify Flow, PHP, JavaScript, jQuery, Gulp, Webpack, Yarn, ThemeKit, Slate, GitHub, Symfony Framework, Foundation Framework, AWS, DSync, Ruby on Rails, MySQL, Microsoft SQL Server 2008 R2, Adobe InDesign, Adobe Photoshop, 3Ds Max, LaTeX, SCRUM, AGILE, XAMPP, Apache, IIS, JSON, SASS, Google Adwords, Google Analytics, DoubleClick, Facebook Manager, Twitter Marketing, Google Webmaster Tools, Ableton Live 9, Google SketchUp.

My work experience.


Sebastian Walach eCommerce Consulting and Development

June 2019 - Present | Melbourne, Australia

Technical Support Lead


February 2019 - June 2019 | Melbourne, Australia

Working as a Team Leader in one of the fastest growing agencies in Australia. DotDev is a Shopify Plus partner focused on high-quality solutions that create efficiency and improve customer experience. Specialising in custom apps and integration with POS, CRM and ERP systems. Everyday point of contact for technical support for clients' Shopify Plus stores, apps and integrations.

Technical Lead

Convert Digital

June 2017 - February 2019 | Melbourne, Australia

Leading all Shopify and BigCommerce projects / Front End / Back End / Multi-platform integrations / UI & UX Designs / Project Management / Client Success / Client trainings / Marketing.

Front-End Developer & Web Designer

Retail Directions

March 2016 - June 2017 | Melbourne, Australia

During my time in Retail Directions I was part of the Client Portal development team (design, front end, back end, testing, documentation). I was also responsible for design and development of the RD Corporate Website and web design, front end and graphic design for fashion brand milli lulo.

Media Assistant

Starcom Mediavest Group

September 2015 - February 2016 | Warsaw, Poland

At SMG Performance Marketing department I managed campaigns for top agency clients including T-Mobile, Santander, (Zalando, Asos etc.) and I was responsible for creating presentations for clients as well as planning, optimising, reporting and invoicing Facebook, Twitter, and SEM (Google Adwords and Doubleclick) campaigns, while maintaining day-to-day primary contact and cooperation with clients.


High End Kitchen

December 2014 - September 2015 | London, United Kingdom

At High End Kitchen I managed a young, growth-oriented startup company in London. Main responsibilities included contact with clients, quotations, design, visualisation, web design, distribution and transport.



February 2011 - August 2011 | Tarnowskie Gory, Poland

At Magmaris I designed interiors for private clients and shop concepts for Levi's and Guess. I was also responsible for creating and maintaining the company website and servers.

Available for freelance work.

sebastian walach


about work contact


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