# Edouard Sioufi

> Staff Software Engineer | Ex-Cofounder | Product-minded

Location: San Francisco, California, United States
Profile: https://flows.cv/edouardsioufi

I've spent 10+ years building software across different contexts - as a cofounder, working with startups from seed to Series B, and shipping projects for companies ranging from investment firms to tech platforms. I've learned to ship what matters, both fast and at quality.

I think engineers do better work when they understand the why, not just the what. That's why I've invested time in the product side - talking to users, running experiments, understanding the problem deeply. It helps me make better technical decisions and move faster without constant handoffs.

I work across the stack - backend systems, frontends, and lately agentic LLM workflows. I particularly enjoy hard problems where constraints force creativity - like building custom graph clustering algorithms that find duplicate products at scale while guaranteeing every similar pair gets reviewed, or designing ensemble ML systems that combine multiple models in logit-space to boost prediction accuracy.

Some things I've built:
- Cofounded a mentoring platform that connected 300+ mentors with companies and their teams. Ran it for 2 years - learned what works (and what doesn't) when finding product-market fit from zero.
- Built data pipelines for one of the largest investment firms in the US that reduced query times from minutes to seconds, unblocking analyst workflows.
- Implemented A/B testing frameworks that helped a music learning app reach 30k downloads and improve conversion by 40%.
- Shipped internal tools and features for teams at tech companies including top social network app.

I started coding at 13 because I loved making things work. Twenty years later, I still get the same satisfaction from seeing something ship and solve a real problem.

If you're building something interesting, let's talk.

## Work Experience
### Staff AI Engineer @ Replit
Jan 2026 – Present | San Francisco Bay Area

### Co-Founder & CTO @ Blast
Jan 2025 – Present | San Francisco Bay Area
Built AI-powered e-commerce platform. Created classification/data enrichment pipeline that reduced preprocessing costs by 75% compared to naive structured output LLM inference. Engineered ML systems and shipped semantic search + recommendation engine to production.

### Software Development Fellow @ Open Avenues Foundation
Jan 2024 – Present
Designed curriculum and mentored 20 students (2 cohorts, underrepresented focus) building industry-ready portfolio projects (Python); top feedback among 50 mentors with internship placements.

### Staff AI Product Engineer @ BigLittleRobots
Jan 2023 – Jan 2024
Built AI copilot VS Code extension (Python, Typescript, React) for data analysts using dbt from concept to MVP
- Reduced model dev and review time and minimized cross-team variance through iterative primary key identification (LLM + SQL verification loops), automated documentation generation, and AI-powered data quality checks
- Architected full-stack extension optimizing for cost and latency through multi-layer caching, lazy inference and lazy warehouse querying, and local dbt compilation with DuckDB throwaway profiles

### Senior Software Engineer @ BigLittleRobots
Jan 2022 – Jan 2023
Architected analytics infra (Python, Snowflake, dbt) for top-5 US investment firm on billions of consumer transactions
- Built unified analytics framework consolidating 10+ disparate datasets (>1B rows), reducing dataset onboarding from 2 weeks → <1 hour with automated schema reconciliation
- Led 3-person team building S&P CapIQ data pipeline, mentored engineer to senior role: consolidated 50+ tables → 12 dbt models, optimized Snowflake clustering and right-sizing to cut analyst query complexity 95% and dev time 40%

### Senior Software Engineer @ Unknown
Jan 2020 – Jan 2022 | Dubai, United Arab Emirates
Built web and mobile applications for startups and major tech companies.
Highlight: automated case study generator (Next.js, TypeScript) for a major social media company, reducing generation time 90% via Canvas-to-PowerPoint engine with client-side media processing.

### Product Manager @ Band Industries
Jan 2019 – Jan 2020
Conducted user research and defined product backlog for iOS music education app. Analyzed activation funnel metrics to prioritize features. Scaled from prototype to 30K+ installs while mentoring 2 junior PMs to promotion.

### Co-Founder / CTO @ Protégé
Jan 2016 – Jan 2019
Built full-stack mentoring marketplace (Typescript, Node.js, React, MongoDB) connecting 300+ leaders with mentees. Reached $70K ARR bootstrapped with 80% mentor retention.

### Co-Founder @ Aseptic
Jan 2014 – Jan 2017 | Dubai, United Arab Emirates
Aseptic provides professional cleaning chemicals and supplies to restaurants, hotels, schools, and other businesses. By combining an extensive catalogue of products with free services like maintenance, dosing equipment, stock management, and periodic deliveries, Aseptic has become a one-stop shop for customers looking for a comprehensive and simple solution.

### Software Engineer @ Invisible Technologies, Inc.
Jan 2016 – Jan 2016 | San Francisco Bay Area
• Developed a Slack project management app and bot using NodeJS

### Intern, SAP Advisory Team @ BearingPoint
Jan 2011 – Jan 2012 | Paris, France
Supported the deployment of SAP Financial Accounting module for a public sector client


## Education
### Master’s Degree in Computer Engineering
Télécom Paris

### Master’s Degree in Computer Engineering
Saint Joseph University of Beirut

### High School
Collège Notre-Dame de Jamhour


## Contact & Social
- LinkedIn: https://linkedin.com/in/edsioufi

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Source: https://flows.cv/edouardsioufi
JSON Resume: https://flows.cv/edouardsioufi/resume.json
Last updated: 2026-04-01