Thomas M.-Senior Software Developer & Software Architect | WordPress/WooCommerce · Wix/Velo · Kajabi · APIs
Check rate
Experience
Software Architect for Wix, Stripe & SaaS Integration
Axxessio / Sign2x (via DLB Studio)
Overall architecture and technical implementation of a Wix-based subscription frontend with Stripe payments and integration with Axxessio's SaaS backend. Implemented Stripe Checkout, subscriptions, webhooks and end-to-end transaction logging. Automated the transfer of customer data and contract information via a JWT-protected REST API. Documented the proxy and security architecture for IP whitelisting, HMAC and operations, and coordinated with the backend team.
Stack: Wix Studio, Wix Velo, JavaScript, Stripe, Webhooks, JWT, HMAC, REST API, Hetzner, Cloudflare
WordPress/WooCommerce Specialist & IT Manager
Textil Factory GmbH
Overall technical responsibility for seven WooCommerce shops and the main website: security hardening, performance, monitoring, backups and automated maintenance. Developed a custom B2B ordering system for three companies and 14 locations, with employee budgets, six department roles, company-specific product visibility and automatic address selection. Automated product imports with more than 10,000 records and reduced monthly updates from several hours of manual work to a single script run.
Stack: WordPress, WooCommerce, PHP, WPML, WP-CLI, Bash, Python, MySQL, Nginx, Hostpoint, Cloudflare Turnstile, UptimeRobot
Full-Stack Developer & Software Architect
TakeMeTo.ai
Designed and developed a multilingual, AI-powered travel planning platform with chat, maps, hotels, restaurants and collaborative trip planning. Built the frontend, backend and data model with React, TypeScript, Node.js and PostgreSQL. Developed a GPT-4 multi-agent system for destinations, travel plans and problem solving, and orchestrated Maps, hotel and restaurant APIs in the chat interface. Also carried out code reviews, refactoring, security and architecture reviews.
Stack: React, TypeScript, Node.js, Express, PostgreSQL, OpenAI GPT-4, WebSocket, Google Maps, Mapbox, LiteAPI, TripAdvisor, i18next
Founding Engineer & Symfony Backend Developer
frontstack GmbH / Frontic
Designed and developed a scalable, API-first SaaS backend for commerce storefronts. Built the multi-tenant backend foundation with Symfony, REST APIs, PostgreSQL and Kinde Auth. Implemented data modeling, security, PHPUnit integration tests and Typesense search; helped develop containerized operations, monitoring and logging with Docker, Grafana and Logstash.
Stack: PHP, Symfony, REST API, PostgreSQL, Docker, PHPUnit, Typesense, Kinde Auth, Grafana, Logstash
System Architect & Automation Developer
Kaspareit Trading LLC
Built a membership platform on Wix with CopeCart payment integration and automated Discord integration. Developed a Node.js service for role assignment, access control and data synchronization. Fully automated onboarding for around 7,000 active members: a purchase grants a Wix role, Discord access, and TradingView and MetaTrader permissions without any manual steps. Managed monitoring and workflow logic, and refactored the established integration.
Stack: Wix Studio, Wix Velo, JavaScript, Node.js, Express, MongoDB, Discord API, CopeCart, Webhooks, REST API, MetaTrader, TradingView
Software Architect & Full-Stack Developer
Storl GbR / storlmedia
Technical responsibility for the established platform landscape made up of several separate WordPress instances for the shop, academy, and media. Further development of WooCommerce, BuddyBoss, and LearnDash, as well as custom plugins, integrations, and automations. Support for the community and course environment for up to 5,000 participants per course. CRM migration to Odoo, Brevo integration, SSO and server architecture, as well as ongoing optimization of performance, hosting, monitoring, and security.
Stack: WordPress, WooCommerce, BuddyBoss, LearnDash, Keycloak, Odoo, Brevo, PHP, REST APIs, Hetzner, Cloudflare, Grafana
IT Lead & Tech Lead
Maxim Mankevich
Operated and further developed the platform, consisting of Kajabi, WordPress, WooCommerce, Digistore24, and automations, as the sole technical point of contact. Provided technical support for a platform with 30,000+ members and 15,000+ course customers, built the community from scratch, and automated course access, payment, CRM, and newsletter processes across systems. Responsible for Kajabi setup and customization, WordPress/WooCommerce development, plugins, APIs, events, tracking, and system selection.
Stack: Kajabi, WordPress, WooCommerce, Digistore24, PHP, JavaScript, REST APIs, Make, Zapier, CRM, LMS
Freelance Senior Software Developer & Software Architect
TM | Websolution
Freelance technical lead for websites, shops, SaaS, learning, and membership platforms. I build new systems, take over established solutions, and connect shops, payment, CRM, communities, learning platforms, and operations through APIs and automations.
Focus areas:
- WordPress/WooCommerce: Custom plugins, B2B logic, security, performance, and automated maintenance
- Wix Studio/Velo: Certified Wix Expert Developer; CMS, membership, payment, API, and automation solutions, as well as numerous websites with three design partners
- Kajabi/LMS/Community: Course access, payment, CRM, newsletters, and membership areas
- Full Stack & APIs: PHP, Symfony, Laravel, JavaScript, TypeScript, Node.js, React, Next.js, REST APIs, and webhooks
- AI integrations: OpenAI, RAG, Agentic Engineering, and multi-agent systems
- Operations: Docker, AWS, Vercel, Hetzner, CI/CD, monitoring, security, and technical documentation
Solution Architect eCommerce in PHP Development
best it AG
- Development and consulting on infrastructure and technology strategies
- Designing innovative applications and solutions tailored to customer requirements
- Planning, extending, and restructuring software architectures
- Developing integrations and connecting heterogeneous systems
- Planning, preparing, and moderating workshops with different stakeholders
- Project planning, support, and development using ITSM, Agile, and Scrum methods
- QA for development teams
- Developing e-commerce solutions and plugins for e-commerce platforms
- Planning and Symfony development for Shopware shop systems
- Planning and Symfony development for Spryker shop systems
Head of IT – Software Development in PHP Development
etikett.de
- IT team lead and technical leadership
- Planning, extending, and restructuring the software architecture
- Planning, extending, and restructuring the technical infrastructure
- Personnel responsibility for the IT team
- Project management for e-commerce platforms and the MIS system
- Integration of a CI environment on AWS
- Introduction of agile methods (Scrum)
- Management and planning of Laravel and Symfony projects
Senior PHP Software Developer
etikett.de
- Development, expansion and refactoring of an internal MIS system for production and business management
- Development, integration and expansion of various e-commerce shops
- Development and refactoring of custom APIs
- Integration and interfaces with external systems
- Building an e-commerce structure in the B2B space
- Web2Print integration
- WordPress development and API integration with a Symfony backend
- CRM, MIS and API development with a Laravel backend
IT Specialist / Sys-Admin / Web Developer
Luftwaffe
- PHP development of an internal MIS system
- Database administration
- Network and system administration
- High-security networking, firewalls and cryptography
- Server administration on Windows and Linux
Industry experience
See where this freelancer has spent most of their professional time.
Experienced in Aerospace and Defense, Manufacturing, Retail, Information Technology, Education, and Banking and Finance.
Business area experience
See which departments and functions this freelancer has contributed to most.
Experienced in Information Technology, Operations, Product Development, Project Management, and Sales.
Summary
For over 20 years, I have developed and managed websites, shops, SaaS, learning and membership platforms. My focus is on solutions where multiple systems need to work together reliably – from frontend and backend to payment, CRM and member management, APIs and automation.
I am a direct technical contact and hands-on developer for companies, agencies and product teams – from system selection and architecture through development and integration to ongoing operations. I support existing teams as a senior developer and architect with integrations, established system landscapes and demanding implementations.
Selected project results:
- WordPress/WooCommerce: Took over seven shops technically, secured them and automated their maintenance; developed a custom B2B ordering system for three companies and 14 locations
- Kajabi and learning platforms: Provided technical support for a platform with over 30,000 members and more than 15,000 course customers; connected Kajabi, WordPress, WooCommerce and Digistore24
- Wix Studio/Velo: As a certified Wix Expert Developer, delivered membership, payment, CMS, API and automation solutions, as well as numerous websites with design partners
- Platform automation: Automated onboarding for around 7,000 active members across Wix, Discord, TradingView and MetaTrader
- E-commerce and technical leadership: Managed six international shops as well as ERP, MIS and web-to-print systems; grew the IT team from 1–2 to 8–9 people
- Enterprise architecture: E-commerce solutions and workshops with Shopware, Spryker, Symfony and APIs at best it AG
- AI platforms: Developed a multilingual travel planning platform with React, Node.js, PostgreSQL, OpenAI and a multi-agent system
Technologies: PHP, Symfony, Laravel, JavaScript, TypeScript, Node.js, React, Next.js WordPress, WooCommerce, Wix Studio/Velo, Kajabi, Shopware, Spryker, Shopify REST APIs, Webhooks, API-first, Headless, SaaS, PostgreSQL, MySQL, MongoDB Docker, AWS, Vercel, Hetzner, GitHub, CI/CD, Monitoring, Security and Testing Make, Zapier, n8n, OpenAI/LLM, RAG, AI agents, multi-agent systems and tool orchestration
I can join at any stage: when building from scratch, making targeted improvements or restructuring an established system landscape. Existing solutions stay in place when they do the job. I develop or integrate missing features to fit the existing architecture.
Skills
Roles And Areas Of Focus
- Senior Software Development And Software Architecture
- Full-Stack, Backend And Frontend Development
- Technical Leadership, Platform Architecture And System Integration
- E-Commerce, Learning And Membership Platforms
- Api Development, Process Automation And Data Modeling
- Cloud Infrastructure, Ci/Cd, Monitoring, Security And Technical Documentation
Development
- Php, Symfony, Laravel
- Javascript, Typescript, Node.Js
- React, Next.Js
Platforms
- Wordpress, Woocommerce
- Wix Studio, Velo
- Kajabi
- Shopware, Spryker, Shopify
Architecture And Data
- Rest Apis, Webhooks, Api-First, Headless, Saas
- Postgresql, Mysql, Mongodb
- Authentication And Authorization Models
Operations And Quality
- Docker, Aws, Vercel, Hetzner
- Github, Ci/Cd, Testing
- Monitoring, Performance, Application Security And Data Protection
Automation And Ai
- Make, Zapier, N8n
- Openai/Llm, Rag
- Ai Agents And Multi-Agent Systems
- Tool Orchestration And Agentic Engineering
Collaboration
- Technical Requirements Analysis And System Selection
- Architecture And Integration Concepts
- Code Reviews, Mentoring And Knowledge Sharing
- Workshops With Technical And Business Stakeholders
Languages
Education
Hochschule Trier
Bachelor of Science · Business Informatics · Trier, Germany
SRH - Mainz
Vocational training with IHK final examination · IT Specialist for System Integration · Mainz, Germany
Certifications & licenses
Database (Oracle) Design & Administration
Linux
Network & Server Administration
Personnel Management, Military Leadership Training
Pl/SQL (Oracle)
Security & Firewall
Statistics
Experience
Global experience
Expertise
Qualifications
Frequently asked questions
Have questions? Find more information here.
Thomas is based in Neumagen-Dhron, Germany.
Thomas speaks the following languages: German (Native), English (Advanced).
Thomas has at least 25 years of experience. During this time, Thomas has worked in at least 12 different roles and for 11 different companies. The average length of individual experience is 2 years and 1 month. Note that Thomas may not have shared all experience and actually has more experience.
Based on recent experience, Thomas would be well-suited for roles such as: Software Architect for Wix, Stripe & SaaS Integration, WordPress/WooCommerce Specialist & IT Manager, Full-Stack Developer & Software Architect.
Thomas's most recent position is Software Architect for Wix, Stripe & SaaS Integration at Axxessio / Sign2x (via DLB Studio).
In recent years, Thomas has worked for Axxessio / Sign2x (via DLB Studio), Textil Factory GmbH, TakeMeTo.ai, frontstack GmbH / Frontic, and Kaspareit Trading LLC.
Thomas is most experienced in industries like Aerospace and Defense, Manufacturing, and Retail. Thomas also has some experience in Information Technology, Education, and Media and Entertainment.
Thomas is most experienced in business areas like Information Technology, Operations, and Product Development. Thomas also has some experience in Project Management and Sales.
Thomas has recently worked in industries like Information Technology, Education, and Retail.
Thomas has recently worked in business areas like Information Technology, Product Development, and Project Management.
Thomas holds a Bachelor in Business Informatics from Hochschule Trier.
Thomas has 7 certificates. Among them, these include: Trainer Certification, Database (Oracle) Design & Administration, and Linux.
Thomas is immediately available part-time for suitable projects.
Daily rate distribution
The rates shown represent the typical market range for freelancers in this position based on recent contracts on our platform.
Average rates for similar positions
Rates are based on recent contracts and do not include FRATCH margin.
The average daily rate is the mean of all daily rates from recent contracts of comparable freelancers on our platform.
The median daily rate is the middle value of all daily rates — half of comparable freelancers charge less, half charge more. Unlike the average, it is barely affected by outliers.
Calculated based on our freelancers’ daily rates as of 6 Nov 2026. Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.
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