~/jayflash — whoami

$ whoami

JOSHUA ADEYEMI — SENIOR SOFTWARE ENGINEER

$ cat about.txt

Senior software engineer with 5+ years building backend platforms, payment systems, and full-stack products across fintech, agritech, and e-commerce.

$ ls -la ./skills

drwxr-xr-x frontend/ typescript react next.js vue nuxt

drwxr-xr-x backend/ node laravel go gin postgres redis

drwxr-xr-x infra/ docker ci/cd aws s3 ses

-rw-r--r-- status open_to_work=false

$

[01] selected work

[02] experience

// git log --author=jayflash

senior software engineer

NOV 2025 — PRESENT

Toothferri

Lead backend and DevOps for a telehealth dental platform. Built services for consultations, scheduling, payments, and chat, deployed on AWS with PHI-safe access controls. Also built Smile Preview, a multi-tenant AI smile-simulation product with practice embeds, lead pipelines, and HIPAA-aligned data retention.

nestjsmongodbpostgresredisstripeawscloudfront

senior software developer

JAN 2026 — APR 2026

Ekema Tech

Built an escrow-backed agritech marketplace from zero to production — payment verification, farmer-buyer escrow, and farm-finance flows on Postgres, Redis, and BullMQ.

nodepostgresredisbullmqrest

senior backend developer

AUG 2025 — JAN 2026

Evoolve & Hicar

Scaled backend reliability across an EV marketplace and a ride-hailing app: KYC and multi-gateway payouts, a shared dispute system serving both products, faster APIs via Redis caching, and live monitoring in Grafana.

nodenest.jspostgreskafkaelasticsearchredispaymentsgrafana

senior software engineer

JAN 2024 — MAY 2025

JadesDev Technologies

Drove three payment and marketplace products to production: Rickypay's multi-gateway bills API, a multi-vendor e-commerce platform with real-time inventory, and flight booking with live seat availability and payments.

laravelvuemysqlnuxt.jsnext.jstypescriptjavascriptpaymentslivewire

backend software engineer

APR 2024 — AUG 2024

CDGS

Built APIs for utilities payments and virtual cards, added MFA and role-based access control, and cut key query response times by ~40%.

laravelnest.jspostgresmysqlrestmfarbacpayments

full-stack developer

JUN 2022 — DEC 2023

JadesDev Technologies

Shipped e-commerce, booking, and marketplace features end to end — laying the foundations the team scaled on afterward.

laravelvuemysqlreactjavascriptrest

full-stack software engineer

JAN 2020 — JAN 2022

Early career

Built and maintained live client sites and apps — REST APIs, relational schemas, deployments, and user-facing flows across backend and frontend.

laraveljavascriptvuemysqlwordpresshtml · css

[03] stack & principles

// cat ~/.config/jayflash

[frontend]

  • react · next.js
  • vue · nuxt.js · livewire
  • typescript · javascript
  • tailwind · css · html
  • a11y · performance

[backend]

  • node · express · nest.js
  • php · laravel · golang · gin
  • postgresql · mysql · mongodb
  • redis · elasticsearch
  • queues · kafka · bullmq
  • rest · payments · firebase
  • websockets · socket.io

[infra]

  • docker · compose · kubernetes
  • aws · vercel · s3 · ses · smtp
  • github actions · ci/cd
  • grafana · observability
  • jest · pest · testing

// principles

01 Pick the tool from the problem, not from the tab you had open.

02 The edge cases are the product: retries, rate limits, observability, data consistency, race conditions, and failed payments that must not double-charge.

03 Decide from product intent, ops constraints, and what the team needs to keep moving. Then write it for the next person: readable code, honest docs, boring deploys.

[04] presence

// cat ~/.profile

I'm not here to look busy. I'm here to leave the system better than I found it.

I stay close to the path a request takes — schema, API, UI, and the failure modes in between. I care more about owning the outcome than collecting tickets.

I work best with teams that move fast without leaving landmines behind. Clear trade-offs, honest status, and systems that still make sense when someone else has to touch them later.

typescriptnestjs · expressgo · ginlaravel · phpvue · react · nextpostgres · redisdocker · ci/cd

[05] contact

NEED AN ENGINEER WHO SHIPS RELIABLE SYSTEMS?

Open to senior software engineering roles focused on distributed systems, backend platforms, product engineering, and technically ambitious software — plus selected freelance work. Reply time: < 24h.