Mohammad Jassim

Developed the OpsCore app in Ruby on Rails with Tailwind, Stimulus, and Hotwire; deprecated a Rails app to a lightweight Hanami wrapper; upgraded legacy Ruby code from AWS SDK v1/v2 to v3 with 150+ RSpec tests; designed and deployed scalable cloud solutions using AWS; implemented security best practices for cloud infrastructure and data protection; automated cloud services via AWS SDK reducing time/effort by ~80%; enhanced business operations and achieved 100% client satisfaction in Zendesk; implemented proactive monitoring/alerting for 20+ hosted apps using CloudWatch and SNS; built IaC solutions using AWS CDK, Ansible, Python, Ruby, and TypeScript; configured DNS with Route 53, Cloudflare, and DNSimple; engineered messaging with SQS, SNS, and Kafka.

Led a team of 20–30 engineers; conducted detailed analyses and requirements elicitation for design and fault-tolerant Java (Spring Boot) APIs; achieved target TPS of 50,000 for Integration APIs; facilitated recruitment; managed stakeholder meetings with Ericsson, Huawei, Veon, and Evamp; provided expert technical documentation; utilized WSO2, Python, Java/Spring, SOAP, JSON, SQL, Jira, Confluence, GitHub, Kafka; performed performance testing with JMeter for throttling and load assessments.

Engineered a cloud-based medical application in Ruby on Rails using Agile methodology; implemented microservices architecture for scalability and performance; mentored teams; integrated security protocols including Devise, OAuth 2, and SHA-2; engaged in pair programming to deliver key features for healthcare providers; employed REST and SOAP messaging; technologies included AWS, Ruby on Rails, Node, and JavaScript.