My Resume
CASSIUS REYNOLDS
San Francisco, CA • (707) 724-1815 • cassius.reynolds.dev@gmail.com
Professional Summary
Full-stack software engineer who thrives on building and scaling production systems from the ground up. Known for taking ownership of complex challenges, leading high-impact projects, and delivering reliable, scalable solutions across modern web architectures.
- Experience leading both greenfield and existing production applications
- Strong focus on performance, scalability, and developer experience
- Background in multiple freelance and professional projects, delivering real-world solutions end-to-end
Professional Experience
- Led development of multiple production applications, owning features from design through deployment
- Built and scaled integrations across CRM and ERP systems including HubSpot, NetSuite, PandaDoc, ConnectWise, and Microsoft Dynamics
- Designed and implemented authentication and billing systems using OAuth, Stripe, and Orb
- Improved developer experience and scalability through architecture decisions and reusable patterns
- Established CI/CD pipelines with GitHub Actions, reducing deployment issues and improving release reliability
- Partnered with product and cross-functional teams to deliver features faster and align technical solutions with business goals
- Integrated third-party systems including Slack, Jira, and Linear to enhance operational workflows
- Utilized TypeScript and Zod for strict validation, improving system reliability and reducing runtime errors
- Led migration of legacy systems to modern architectures, improving performance and maintainability
- Built and shipped production features using Next.js, React, tRPC, and NextAuth
- Contributed to new platform development, expanding product capabilities and customer offerings
- Collaborated with cross-functional teams to translate business requirements into scalable technical solutions
- Delivered multiple client-facing applications and integrations, managing full project lifecycles from concept to deployment
- Built custom websites and backend systems tailored to business needs
- Implemented solutions involving DNS, hosting, SEO, and third-party services
- Worked directly with clients to translate ideas into functional, production-ready applications
Education
Bachelor of Science in Computer Science (Software Engineering)
GPA: 3.85 • Multi-term Honor Roll
Software Engineering Immersive
Bachelor of Arts, Communication Management
Graduated Cum Laude
Certifications
Technical Skills
Programming Languages:
JavaScript, TypeScript, Python, HTML, CSS, SQL
Frontend Technologies:
React, Next.js, Tailwind CSS, HTML5, CSS3
Databases:
PostgreSQL, MongoDB, Redis, SQL, NoSQL
Backend Technologies:
Node.js, Express, tRPC, REST APIs, GraphQL
Cloud & DevOps:
AWS, Google Cloud Platform, Vercel, Heroku, Docker, GitHub Actions, CI/CD
Authentication & Billing:
OAuth, NextAuth, Stripe, Orb Billing
Development Tools:
Git, GitHub, Postman, ESLint, Zod
Testing:
Cypress (E2E), Playwright (E2E), Unit Testing
Other:
AI-assisted development (Cursor), System Design, Agile/Scrum
System Integrations:
HubSpot, NetSuite, PandaDoc, ConnectWise, Microsoft Dynamics, Slack, Jira, Linear
Project Highlights
- Built a salary-cap lineup builder ($15 budget, positional constraints) with drag-and-drop ordering, community ratings, and a gamble system featuring animations, sound effects, and confetti
- Implemented multi-factor authentication supporting TOTP, email codes, and WebAuthn passkeys with encrypted secrets and Redis-backed session verification
- Designed a social layer including follows, threaded comments, upvote/downvote voting, Giphy GIF embeds, bookmarks, and automated profanity filtering with an admin moderation queue
- Automated player data enrichment by scraping Wikipedia with Cheerio, falling back to OpenAI GPT-4o-mini for career stats and awards extraction
- Architected end-to-end type-safe APIs with tRPC, TanStack React Query, and SuperJSON; enforced sliding-window rate limiting on auth endpoints via Redis
- Applied Cache-Aside strategy with Redis to cache high-traffic, low-churn public data, reducing database load and improving page load times
- Managed file uploads to S3 with CloudFront CDN delivery and MIME-type validation; integrated YouTube Data API for curated video content
- Built an admin dashboard with user management, ban/suspend enforcement, flagged content review, player request queue with community value voting, and gamble animation tuning
Leadership & Community Involvement
- Mentor and coach youth athletes (ages 12–21), providing guidance in athletics, personal development, and discipline
- Support skill development, leadership growth, and confidence building through structured training and mentorship
- Foster positive relationships and act as a role model within the local community
- Participated in public speaking and community engagement for art installations and cultural events
- Contributed to MLK town meeting celebrations and public mural unveilings
- Supported community-driven initiatives focused on cultural awareness and artistic expression
Selected for leadership roles across multiple seasons, contributing to team culture and accountability
Organized events, facilitated discussions, and supported initiatives promoting community engagement and inclusion