
Jay Flash
@jayflash
I build scalable payment, marketplace, and backend platforms handling high-volume transactions.
What I'm looking for
I've built payment, marketplace, telehealth, and booking platforms at Toothferri, Ekema Tech, Evoolve & Hicar, and JadesDev Technologies. My work has supported 50+ dental practices, 80K+ monthly transactions, 5,000+ marketplace users, and $1.2M+ in payment volume.
I lead backend architecture and infrastructure with Node.js, NestJS, Go, AWS, PostgreSQL, Redis, Kafka, and Stripe. I enjoy turning complex workflows—including escrow, payouts, KYC, real-time chat, and AI-powered products—into reliable systems that improve performance and user outcomes.
Experience
Work history, roles, and key accomplishments
Senior Software Engineer
Toothferri
Nov 2025 - Present (10 months)
Lead backend architecture and AWS infrastructure for a telehealth platform used by 50+ practices, and built an AI-powered smile simulation product that generated 2,000+ patient leads. Reduced API latency by ~35% through optimization of NestJS services.
Senior Backend Developer
Evoolve & Hicar
Aug 2025 - Jan 2026 (5 months)
Improved reliability and payments infrastructure across an EV marketplace and ride-hailing platform, supporting 80K+ monthly transactions. Reduced payout and dispute resolution time by ~45% and increased API performance by ~50%.
Senior Software Engineer
JadesDev Technologies
Jan 2024 - May 2025 (1 year 4 months)
Led backend development across payments, e-commerce, and travel systems, shipping multiple production products. Built Rickypay multi-gateway billing APIs processing $1.2M+ and a multi-vendor e-commerce platform supporting 200+ vendors.
Backend Software Engineer (Contract)
CDGS
Apr 2024 - Aug 2024 (4 months)
Developed secure and high-performance backend systems for payments and virtual cards, handling 20K+ daily transactions. Implemented MFA and RBAC, reducing unauthorized access by ~25% and improving query performance by ~40%.
Full-Stack Developer
JadesDev Technologies
Jun 2022 - Dec 2023 (1 year 6 months)
Delivered core product features across e-commerce, booking, and marketplace platforms, used by 10K+ active users. Contributed to systems later scaled to $800K+ in transaction volume.
Full-Stack Software Engineer
Early career
Jan 2020 - Jan 2022 (2 years)
Built and maintained client applications across backend and frontend, delivering 25+ applications using Laravel, Vue, and MySQL. Designed APIs and systems supporting 8K+ users.
Education
Degrees, certifications, and relevant coursework
Jay hasn't added their education
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