8 years of backend and frontend development

Yoosif Sherif

8 years of backend and frontend development

Available to hire

8 years of backend and frontend development

Experience Level

Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
See more

Work Experience

Software Engineer at Independent Contractor, Remote
April 1, 2017 - Present
Independent contractor delivering backend and frontend features across multiple projects: developed an online video platform with quizzes (Go/TypeScript, SQLite); improved user experience with lazy-loading to reduce time to first paint; created a YAML-to-Docx resume generator (OpenXML SDK); built a crawler feeding an LLM pipeline for content screening; developed a browser automation/extension toolkit for data extraction; contributed to a text-to-speech system and end-to-end web app tests.
Full Stack Developer at Toptal Network (Several Clients)
April 1, 2019 - May 1, 2025
Developed a vector-based search engine with AI chat integration; designed an AWS-based text extraction pipeline moving data between S3 buckets; built admin panel and API services; implemented real-time log streaming; created web crawlers via Chrome extension; integrated OpenAI API; converted web app to mobile apps with Expo/React Native.
Software Developer at Synthesis AI (synthesis.ai)
March 1, 2021 - March 1, 2023
Accountable for feature development, maintenance, and release of a web app; developed and maintained a Go API with PostgreSQL and Stripe integration; refactored React codebase, reduced boilerplate with SQLBoiler, and improved data layer reliability.
Software Developer at Speechmorphing (speechmorphinc.com)
May 1, 2019 - September 1, 2019
Saved over 90% of compute costs for ML inference by implementing on/off idle controls for GPU instances; developed microservices and a web app enabling users to try a text-to-speech system.
Senior Developer / Technical Team Lead at ThoughtDesign
April 1, 2017 - May 1, 2019
Led a team of 3; optimized build/bundling for three Angular apps (~30% faster); participated in hiring; developed new features for an enterprise project; recognized as top-performing team by a major client.
Frontend / Fullstack Developer at 34ML
October 1, 2016 - April 1, 2017
Developed backend services to support iOS/Android apps for a multinational pharma company; fixed bugs and implemented features for AngularJS admin panels with real-time notifications and hierarchical access control.

Education

Master of Engineering (Electrical and Computer Engineering) at University of British Columbia
January 11, 2030 - January 1, 2021

Qualifications

Add your qualifications or awards here.

Industry Experience

Software & Internet, Professional Services, Media & Entertainment

Experience Level

Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
See more