JavaScript Experts in Frankfurt

Ornel Franck W.

Purchasing Manager, Logistics, IT Manager & Software Architect

Last position:

Sales Partner at ERGO PRO

Industry: Insurance, Trade, IT
Customers & Projects: Consulting and selling insurance and similar services
Main tasks: Insurance consulting (health insurance, retirement planning, wealth building); commercial services, inside and field sales; sales data analysis and forecasting; customer consulting and support; opening a new sales headquarters for private and business customers; business development & innovation management; business use case development; process optimization; stakeholder management; team leadership and training; preparation and delivery of trainings;
Technologies used: Microsoft Office 365, Microsoft Teams, Jira, Draw.IO, Camunda 8, Java (8, 17,21,25), Git, Spring Boot, Spring Batch, Spring Data REST, Spring Web, Spring Security, J-Unit, Playwright, Lombock, Vaadin, H2, PostgreSQL (16, 17 18), pgAdmin, Docker, LLMs, JasperSoft Studio, JasperReports

Patrick L.

Senior AI Software Engineer with 9 years of experience delivering practical AI products for enterprise and public sector

Last position:

Senior GenAI Fullstack Developer at SBH (Schulbau Hamburg)

Remote freelance role focused on Agentic AI strategy, secure application patterns, and reusable agentic workflows for a government agency.

Development and implementation of an open source Agentic AI strategy for a government agency, with a focus on GDPR, security, and self hosted solutions
Development of reusable agentic workflows and mini applications that enable non technical employees to solve business problems independently
Implementation of internal business applications with Single Sign On (SSO) and Azure PostgreSQL integration on Hetzner Linux servers
Implementation of nine mini applications with Single Sign On (SSO) and Azure PostgreSQL integration on Hetzner Linux servers
Techstack: Python, Nextjs, Typescript, Streamlit, Anthropic SDK (Claude), Azure, Linux Ubuntu, PostgreSQL, MS SQL, Angular, Authentik

Michael H.

Senior Frontend Engineer · Frontend Tech Lead · Lead UI Engineer

Kelsterbach

Last position:

Frontend Developer at RTL Tech

Development and optimization of the RTL+ frontend application for SmartTV and set-top box platforms with React and Next.js.
Key role in the technical coordination of developers within the team and in coordinating implementation.
Central interface to adjacent teams to simplify development processes and improve cross-team alignment.
Improved frontend performance, stability, and rendering behavior on low-powered devices in a restricted runtime environment.
Implemented a frontend testing strategy with Jest, React Testing Library, and Playwright.
Implemented accessibility improvements according to WCAG 2.2 and WAI-ARIA.
Integrated Didomi Consent Management as a contribution to increasing ad monetization on streaming platforms.
Used AI-supported engineering workflows with Cursor for structured implementation, refactoring, and faster problem solving.

Technologies used: React, Next.js, TypeScript, JavaScript, GraphQL, Apollo Gateway, Zustand, Tailwind CSS, Styled Components, React Testing Library, Playwright, Jest, HTML5, CSS3, AWS Lambda, EC2, CloudFront, S3, GitLab CI/CD, NX, Cursor

Saqib J.

Senior Solution & Software Architect · Interim IT Lead · AI/Agentic AI, Cloud, .NET

Erlensee

Last position:

AI Developer / AI Engineer (Lead) at KOM4TEC GmbH

Conceptual design and implementation of modular AI assistants for sales and business processes in the Microsoft ecosystem (Agentic AI, Copilot extensions)
Frontend architecture and development with React + TypeScript for embedded chat and assistant surfaces (streaming UI, hooks, React Query, OpenAPI clients)
Enterprise-level agent development: reusable skill/agent library, MCP server, review and compliance gates
LLM integration into the user experience: Anthropic (Claude), OpenAI, tool use, RAG pipelines, prompt engineering, guardrails
Architecture and code review consulting as well as mentoring in the AI development team
Integration with Microsoft Graph, Power Platform, and Azure services
Technologies: React, TypeScript, Anthropic Claude, OpenAI, MCP, RAG, Microsoft Graph, Power Platform, Azure

Prasad T.

Solution Architect / Senior Manager – DTC E-Commerce Platform

Last position:

Solution Architect / Senior Manager – DTC E-Commerce Platform at BRITA

Led discovery phase and POC for Shopware to Shopify Plus migration across EMEA markets, evaluating platform suitability, technical architecture, and multi-brand/multi-country capabilities against business requirements.
Designed reference architecture for Shopify Plus implementation incorporating headless front-end patterns (Vue.js, Nuxt.js), CMS integration (Magnolia), and Azure middleware (APIM, Functions, Logic Apps, Service Bus) for 11 EMEA markets.
Defined migration strategy analyzing data mapping, cutover approach, and zero-downtime deployment patterns using Varnish caching, GitOps pipelines, and CI/CD orchestration across six vendor teams.
Architected multi-tenant Shopify Plus governance model with centralized admin, localized storefront customization, and compliance controls (GDPR, data residency).
Prototyped AI-driven search optimization (LLM.txt, JSON-LD) for product discoverability in Google AI results, demonstrating post-launch performance opportunities.
Defined EMEA expansion roadmap for 15+ markets through C-level strategic workshops, identifying phased rollout, market-specific configurations, and resource requirements.
Tech Stack: React, Nuxt.js, Vue.js, Magnolia CMS, Shopware, Shopify Plus, Azure (APIM, Functions, Logic Apps, Service Bus, Front Door), Varnish, SAP, MS Dynamics, Docker, Kubernetes, GitHub Actions, PostgreSQL, Kafka

Torsten F.

Data Analyst, Requirements Manager

Dreieich

Last position:

Data Analyst, Requirements Manager at Isabellenhütte Heusler GmbH

Analysis of the existing reporting platform including processes and governance topics with stakeholders from sales and marketing.
Detailed analysis and evaluation of client-defined requirements for existing reporting and new dashboards.
Supporting stakeholders in managing sales processes and early detection of KPI trends.
Use of Microsoft Power BI as central analysis and reporting platform.
Developing a proposal for the necessary evolution of processes and the Power BI platform.
Gathering current business processes and defining company-wide KPIs in coordination with stakeholders.
Analysis and inventory of the client's Power BI platform.
Analysis of processes and data governance.
Recording and documenting current business processes.
Developing recommendations for process and reporting platform improvements.
Designing and implementing dashboards in Power BI.
Defining company-wide KPIs and aligning them with stakeholders.
Microsoft Power BI.
Data analytics.
KPI definition and reporting.
Dashboard design and data visualization.
Stakeholder management and requirements management.

Anthony M.

CodeValdCortex - Enterprise Multi-Agent AI Orchestration Platform

Last position:

Research and Development, AI for Enterprise at Mwanachama

Built an MCP (Model Context Protocol) layer for Mwanachama's agency service, turning domain manager methods into callable AI-agent tools. This included a composite tool that builds a full organization design (org chart, goals, workflows, RACI matrix) from one specification.
Built the chat-driven agency builder (Wakala Studio and API), where an organization describes its structure in natural language and an AI agent uses those tools to construct and modify the live design.
Added an insights service so an organization can review AI-agent interactions and completed work. Insights from that review feed back into solution design, gated by architect and user sign-off.
Alongside this, designed and built the platform itself: ~20 Go microservices on PostgreSQL, Flutter and React clients, deployed on Kubernetes.
AI agents scan the platform autonomously for security gaps and run scripted tests, covering API (Postman-style) and UI testing. The rest of the work stays supervised. No rogue agents, promise.

Mario S.

Expert in Web Analytics, Tag Management and Consent Management

Last position:

Expert in Web Analytics, Tag Management and Consent Management at Deutsche Bahn AG

Conducting and evaluating web analyses
Creating and editing tags and scripts in the area of tag management as well as banners and other client-side web elements in the area of consent management
Technologies used in development: Tealium, JavaScript, IntelliJ, Git, Android Studio, Selenium, Appium, Adobe Analytics, Power Automate, Power App

Yves S.

AI Operator for E-Com Brands, Interim E-Commerce and Tech Lead

Kronberg im Taunus

Last position:

Owner and AI Operator at Path to AI

Operational implementation of the growth levers of growing E-Com brands: SEO, GEO, SEA, shop, conversion, and automation of recurring processes.
Building and managing specialized AI agent systems that work as roles (SEO, content, conversion, Shopify engineering) instead of single prompts.
Working either as done-for-you execution or as done-with-you setup, where the brand's team can continue working on its own afterward.
Customers and projects include TeamTex and Original Veddel, Störtebekker, ConstructionX.
AI workshops and enablement formats for specialist and leadership teams, plus the joint webinar series AI Vibe Club with Xentral.

Noel L.

Founder & Lead Engineer

Last position:

Founder & Lead Engineer at ausbildung-in-der-it.de

Platform established and running stably; deliberately reducing my involvement to refocus on an engineering mandate in the financial sector.
Built an own SaaS learning platform from the ground up and scaled it to over 20,000 users (over 6,000 courses sold, B2C and B2B); end-to-end ownership from development through infrastructure to operations.
Built a lab environment that provisions an isolated Linux container per user (Docker, Traefik, Go), including automatic provisioning and a dedicated subdomain per user.
Integrated LLM features into the product and accelerated development end-to-end with AI-assisted workflows (Claude Code, Codex); CI/CD with automated tests.

Alexander H.

Tech Lead | Founding-Stage Engineer | Full-Stack Product Builder

Dreieich

Last position:

Freelance Full-Stack Engineer & Technical Lead at Self Employed

Full-stack TypeScript development
Application architecture
Technical leadership
Infrastructure and scalability
Legacy and architecture migrations
Building and improving production applications

Muhammad U.

Last position:

Software Engineer at Absolutely Digital

Vincent R.

Freelancer

Last position:

Freelancer at VINROTLAB.IO

Consulting and creation of various web applications based on SharePoint and the React framework for different clients
Development and testing of accessible apps for SharePoint
Creation of various test cases for test automation
Development of various solutions based on Azure
Creation of various web services based on .NET
Development of various SharePoint Framework solutions
Development of various UI solutions based on SharePoint
Consulting and creation of various Power Apps applications and Power Automate for the steel industry and an IT consulting company
Support, consulting, and development with offshore teams for SharePoint 2013, 2016, and microservices for a logistics company
Consulting, concept design, and development of microservices and web applications based on Microsoft technology and the React framework for a logistics company
Consulting, concept design, and development of various SharePoint Framework solutions on SharePoint 2016 for logistics
Consulting for the migration from SharePoint 2010 to 2016 for an IT consulting company

Onik M.

SAP SuccessFactors & S4HANA Consultant

Last position:

SAP SuccessFactors & S4HANA Consultant at Banking Industry

Extracted relevant infotypes from SAP HCM for migration to SuccessFactors Employee Central and mapping to ECP fields.
Configured P2P integration including BAPI setup and secured data exchange with HTTPS and OAuth protocols.
Set up foundational settings in Recruiting (REC) including roles, permissions, and job requisition templates.
Implemented Career Site Builder to create a branded candidate experience and integrated external job boards.
Configured candidate application workflows, screening, interviewing, and hiring communication templates.
Set up pre-screening questions and assessment tools including DHB sanction list checks.
Implemented automated background check and KYC integration with external vendors in the REC module.
Localized job requisition templates to reflect regional job titles and regulatory compliance.
Customized onboarding document templates and localized document archiving protocols (DRTM).
Adjusted onboarding forms to capture country-specific employee information including Form I-9.
Enabled Form I-9 remote document verification and integrated eVerify with SuccessFactors.
Set up automated reminders for employees and HR to complete I-9 sections within deadlines.
Configured pre-Day 1 access for new hires to complete tasks and mandatory trainings prior to start date.
Enabled e-signature integration for onboarding documents to support remote verification.
Technologies: SAP SuccessFactors, BTP, CPI, HCM onPremise, EC, ECP, REC, ONB, Form I-9, eVerify, S4HANA.

Khaled T.

Consultant / DevOps Engineer