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Jay FlashJF
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Jay Flash

@jayflash

I build scalable payment, marketplace, and backend platforms handling high-volume transactions.

Nigeria
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What I'm looking for

I'm looking to build and lead reliable backend, payments, marketplace, and full-stack products where I can improve performance, scale transaction systems, and deliver measurable customer impact.

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

TO
Current

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.

ET

Senior Software Developer

Ekema Tech

Jan 2026 - Apr 2026 (3 months)

Built an escrow-based agritech marketplace from zero to production, supporting 5,000+ users and processing $250K+ in volume. Improved async job throughput by ~40% using BullMQ and Redis.

EH

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%.

JT

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.

CD

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%.

JT

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.

EC

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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