Ahmad Mateen

Software Developer & Automation Engineer

Vertriebsprozesse für B2C Unternehmen mit mtl. 50+ Anfragen • Fulltime

Jul 2025 - Aug 2026 • 1 yr 1 mo

About Simpli GmbH: AI-assisted marketing, communication and back-office software platform for SMBs What I did: → Designed and maintained business-critical automations (Make.com, n8n, Monday.com, GoHighLevel CRM API) for 80+ client accounts → Connected third-party systems to the platform: HubSpot, Pipedrive, Zoho, ActiveCampaign, Shopify, Stripe, ImmoScout24, OnOffice, Propstack, and more → Implemented SEPA direct-debit mandates into billing workflows → Built and maintained GoHighLevel marketplace apps: tag-based lead assignment, user assignment, course enrollment, automated account provisioning, NPS reporting → Led development of customer-facing operations web application from architecture to production (990+ commits, full codebase ownership) → Built features: AI-assisted appointment booking, capacity management, message deduplication, scheduling, heartbeat monitoring, reporting dashboards → Integrated WhatsApp Business, RCS, and Twilio telephony channels → Resolved 166 production automation incidents (message delivery, data sync, failed workflows) with 100% resolution rate → Set up automated error-log monitoring to surface failures as actionable tickets → Contributed ~400 tickets across development, operations, and customer support Tech Stack: TypeScript, React, Express.js, tRPC, Drizzle ORM, PostgreSQL, Railway, Make.com, n8n, GoHighLevel API, Zapier Key Outcomes: -> Maintained 80+ client integrations across multiple platforms ->100% resolution rate on production automation failures -> Built systems handling real estate operations, lead management, and CRM workflows at scale

API Integration Specialist (GHL)

Rozi Academy • Fulltime

Aug 2023 - Jun 2025 • 1 yr 10 mos

Built web applications and automation solutions, specializing in API integrations and business process automation: ->Designed and maintained RESTful APIs for third-party integrations ->Debugged complex integration failures and webhook sync issues for real-world clients ->Developed automated workflows that eliminated manual data entry processes ->Worked with databases to ensure reliable data synchronization between systems ->Collaborated on full-stack solutions using React, Node.js, and PostgreSQL Key Skills: REST APIs, API Debugging, Webhook Implementation, Process Automation

Associate Software Engineer

HexaTech Solution • Fulltime

Jul 2022 - Aug 2023 • 1 yr 1 mo

Worked on API integrations and GoHighLevel marketplace app development for client projects. → Designed and built REST API integrations connecting third-party tools to client systems → Developed custom GoHighLevel marketplace apps, including workflow automation and integration features → Debugged API connection issues and webhook failures in live systems → Collaborated with the team to architect scalable integration solutions → Built backend systems using Node.js and Express to support API-driven applications Key skills: API Integration, GoHighLevel, REST APIs, Node.js, Webhooks, Workflow Automation