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Abdelwahab Mahmoud

@abdelwahabmahmoud

Senior Full-Stack Engineer at OnTheGoSystems (WPML), who built a scalable LLM translation engine and a queue autoscaler handling 100K jobs/hour.

Egypt

Message

At OnTheGoSystems (WPML), I built a scalable LLM engine behind PTC’s translation platform, using fallback chains across Bedrock, OpenAI, and Gemini. I also built an incident-triage platform with the team lead and moved production from EC2 to ECS Fargate, which I then owned.

At Dailymealz, I built a real-time order service for a product with around 100K daily active users, along with its driver-location pipeline and delivery-map dashboard. I led a team of six on the driver app and added monitoring and alarms that cut mean time to resolve by 30%.

Experience

Work history, roles, and key accomplishments

Senior Software Engineer

OnTheGoSystems

Dec 2024 - Sep 2026 (1 year 9 months)

Built a queue-depth autoscaler and incident-triage platform, and led the migration to ECS Fargate. Developed the scalable LLM engine behind PTC's translation platform.

NodeJS TypeScript AWS Lambda DynamoDB MySQL Claude Agent SDK MCP Cloudwatch Prometheus Gitlab CI Terraform AWS ECS Fargate Bedrock OpenAI Gemini Langfuse

Senior Software Engineer

Dailymealz

Dec 2021 - Dec 2024 (3 years)

Built real-time order service and driver-location pipeline for ~100K DAU, and led a team of 6 on the driver app. Improved observability and cut MTTR by 30%.

NodeJS Socket.IO Redis MySQL TypeScript Express TimeScaleDB MongoDB React Next.js Apollo GraphQL Amazon SQS Datadog OpenTelemetry React Native

Full-Stack Developer

Nformacy

Oct 2020 - Dec 2021 (1 year 2 months)

Led a team of 5 on Rails web apps, moved them to a SaaS model, and built the React translation-management dashboard. Mentored the team in XP, TDD, and thin vertical slices.

Ruby on Rails React Test Driven Development BDD CI CD

Software Engineer

DevSquads

Jan 2018 - Oct 2020 (2 years 9 months)

Built client products in Ruby on Rails, React Native, and React in XP teams with TDD and pairing. Developed Shapa's health-task recommender and analytics dashboards.

Ruby on Rails React Native React Test Driven Development Bluetooth Low Energy