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Yazid Krayem

@yazidkrayem

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Senior Backend Software Engineer at DESIGNER-24, scaling SaaS infrastructure and building research-data ETL pipelines.

Syrian Arab Republic

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At DESIGNER-24, I design and maintain Node.js microservices for SaaS product expansion, using ArangoDB and Redis. I also manage infrastructure across AWS and Azure and develop ETL pipelines for research data.

At ADVANCES AND MORE LLC, I led backend infrastructure projects for scientific research, including serverless article-summarization pipelines using LLM APIs and PostgreSQL vector search. Across my backend roles, I’ve maintained legacy systems, developed SQL-driven services, and worked on platforms for scientific and laboratory data.

Experience

Work history, roles, and key accomplishments

Current

Senior Software Engineer

Current

Designer-24

Apr 2022 - Present (4 years 7 months)

Design, build, and maintain scalable microservices in Node.js with ArangoDB and Redis to support global SaaS product expansion. Act as sole owner of DevOps, implementing Infrastructure as Code, CI/CD pipelines, and robust system monitoring for high-availability APIs.

NodeJS ArangoDB Redis Microservices DevOps Infrastructure as Code CI CD AWS Azure EC2 Azure App Services ETL Data Modeling

Lead Backend Developer

Advances and More LLC

Sep 2019 - Jun 2025 (5 years 9 months)

Led backend infrastructure projects on AWS, building serverless pipelines for summarizing scientific research articles using LLM APIs and PostgreSQL vector search. Maintained and extended legacy codebases while transitioning core services to modern Node.js and SQL-driven architectures.

AWS Serverless LLM APIs PostgreSQL Vector Search NodeJS SQL Database Design Security Audits React Web Development

Backend Developer

Mitara

Feb 2022 - May 2022 (3 months)

Delivered a full-stack platform using Node.js, Sequelize, and MySQL, implementing strict unit testing to ensure backend stability. Designed custom CMS solutions and backend logic optimized for scientific and client-specific research workflows.

NodeJS Sequelize MySQL Unit Testing CMS Data Modeling SQL Security Audits Code Review

Full-Stack Developer

Micro-Bytes

Apr 2019 - Aug 2019 (4 months)

Architected complex database schemas and backend logic using Node.js and GraphQL to support data-intensive dashboards. Developed high-performance landing pages and reporting tools utilizing Apollo Server for real-time research visualization.

NodeJS GraphQL Apollo Server SQL Database Design REST APIs Data Integrity