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Oğuz Bayat

@ouzbayat

Software Engineer at Momntum building AI conversation tools, including outbound voice campaigns and customer booking integrations.

Turkey

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At Momntum, I build features for an AI employee handling customer conversations across chat, WhatsApp, SMS, and phone. I shipped outbound voice campaigns and Phorest salon booking, and added tools for Zoho, HubSpot, Calendly, and Shopify.

At Fabrikatör, I developed Ruby on Rails services and React applications, and worked with Shopify and Amazon APIs. I also built custom MCP servers and n8n pipelines, using Claude-assisted workflows that cut development time by about 40%.

At Paraşüt, I led a team of five developers on a microservices system handling 500K+ daily transactions. I made technical decisions, worked with product managers on roadmaps, and helped raise sprint velocity by about 30%.

Experience

Work history, roles, and key accomplishments

Current

Software Engineer

Current

Momntum

Mar 2026 - Present (7 months)

Building outbound voice campaigns, Phorest salon booking, and Zoho CRM tools for an AI customer conversation platform. Implemented integrations with HubSpot, Calendly, Shopify, and Twilio, and introduced a shared LLM tool catalogue.

Ruby on Rails PostgreSQL Sidekiq LLM Tool Calling ElevenLabs Phorest Zoho CRM Zoho Creator HubSpot Calendly Shopify Twilio Meta Stripe Telegram WhatsApp AWS Claude MCP

Senior Software Developer

Fabrikatör

Jul 2024 - Mar 2026 (1 year 8 months)

Developed backend services in Ruby on Rails and frontend applications in React, integrating Shopify and Amazon APIs with event-based webhooks on AWS SNS/SQS. Used Claude with MCP servers and n8n pipelines to cut development time by about 40%.

Ruby on Rails React Shopify Amazon AWS SNS AWS SQS Heroku Sidekiq Redis REST APIs Claude MCP N8n RubyGems

Senior Ruby on Rails Developer

Sapiens Germany GmbH (Sum Cumo)

Sep 2023 - Jul 2024 (10 months)

Developed and maintained backend services in Ruby on Rails, designing GraphQL APIs with type-safe schemas that cut redundant API calls by about 35%. Ran containerized deploys with Kubernetes and Docker, including blue-green releases, and established tests reaching 85%+ coverage.

Ruby on Rails GraphQL Kubernetes Docker Blue Green Deployment Testing CI CD

Senior Software Developer & Team Lead

Paraşüt

Mar 2020 - Sep 2023 (3 years 6 months)

Led a team of 5 developers on a microservices system handling 500K+ daily transactions, raising sprint velocity by about 30%. Architected REST APIs with OpenAPI/Swagger and integrated payment, accounting, and e-commerce systems.

Ruby on Rails Ember.Js Sidekiq Redis REST APIs OpenAPI Swagger Microservices Team Leadership Sprint Planning Mentorship

Software Developer

Pavotek Software

Mar 2018 - Mar 2020 (2 years)

Built full-stack applications with Ruby on Rails and JavaScript, administered Linux servers, and managed PostgreSQL backups and query performance. Gathered client requirements and shipped responsive, cross-browser interfaces.

Ruby on Rails JavaScript Linux PostgreSQL CI CD Responsive Design