Marketing automation & CRM
SAP Emarsys (SAP Engage), Adobe Marketo, Microsoft Dynamics 365 / Customer Insights Journeys, Dymatrix CDP, HubSpot, CleverReach, June, Mailchimp, Salesforce, SMS and push channels
Email engineering & QA
HTML5, CSS3, MJML, modular master templates, dynamic content, dark mode, Outlook and legacy client compatibility, Litmus, Email on Acid
Integration & APIs
REST APIs, webhooks, Postman, n8n, Make, Zapier, JSON, OAuth, data mapping, Amazon SES, SendGrid, Stripe
AI & agents
Claude and Claude Code, ChatGPT, Google Antigravity, locally hosted LLMs, MCP servers, multi agent workflows, prompt and context engineering
Code & delivery
JavaScript, HTML, CSS, SQL, R, Jest, Git with GitHub and GitLab
Deliverability & compliance
DKIM, DMARC, SPF, BIMI, domain and IP warm up, MXToolbox, GDPR, EAA and BFSG accessibility
Experimentation & CRO
Kameleoon, client side A/B testing, variant development in JavaScript, MutationObserver for SPA and framework pages, test concept, segmentation, result analysis
Data & optimisation
Google Analytics, A/B testing statistics, conversion rate optimisation, reporting