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Joshua Sylvester
Senior Machine Learning Researcher/Engineer specializing in temporal modeling and production ML systems
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About
Backend engineer who built and evolved a startup data-processing backend (Express.js/MySQL) handling millions of user data points, with a microservices pipeline integrating multiple social media APIs. Emphasizes reliability and security through comprehensive testing, robust error/retry handling for sequential pagination constraints, and tight IAM/JWT/OAuth-based access controls.
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Key Strengths
- Designed and built startup backend processing millions of user data points (Express.js + MySQL)
- Architected microservices-based data processing pipeline focused on speed and fault tolerance
- Handled complex external API constraints (sequential/chained pagination) with robust retries and error-code handling
- Strong security implementation: JWT auth, OAuth providers, and least-privilege IAM for sensitive user data
- Experienced with database schema evolution and backfills validated via QA testing before production rollout
- Effective debugging of production edge cases using logging to restore broken pipelines and improve reliability
Reference Highlights
- Very strong ownership and accountability
- Delivers features in a timely manner
- Thorough from requirements to production
- Proactive stakeholder communication
- Strong research and due diligence (APIs, compliance)
- Excellent architectural judgment and foresight
- Security-first mindset
- Effective cross-team collaborator
- Strong problem-solving under pressure
- Self-starter who thrives with minimal requirements
- Handles ambiguity well in early-stage/zero-to-one work
- Provides clear updates and flags delays promptly
- Core backend expertise (knew system ins and outs)
Joshua's references speak for themselves. Let us connect you.
Experience
Education
Awards
Skills
Languages
Publications
17 publications
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