Samuel Ladi
@samuelladi
Senior full-stack engineer architecting enterprise fintech and SaaS platforms on AWS.
What I'm looking for
I’m a Senior Full Stack Engineer with a proven record of architecting and delivering large-scale, enterprise-grade platforms across fintech and SaaS. I’m expert in Python (Django, Django REST Framework) and modern JavaScript ecosystems (React, Next.js, Node.js), and I build cloud-native, microservices-driven systems on AWS.
At FiftyX, I architected and led a high-availability cryptocurrency trading platform supporting 50k+ active traders and 10k+ trades per minute. I designed fault-tolerant, concurrency-safe transaction and order processing with idempotent APIs and real-time reconciliation, then redesigned backend and API architecture to improve throughput and latency by 45%.
I also own high-performance user experiences—most recently as a Senior Frontend Engineer at LeadCourt—building analytics dashboards, advanced search, and filtering workflows for 100M+ professional records. Earlier, as a Technical Mentor & Staff Engineer at Parach ICT Academy, I mentored developers and delivered workshops to institutionalize TDD, version control workflows, and CI/CD pipelines.
Across independent contracts, I’ve served as a primary technical authority, leading system architecture and technical strategy for fintech, education, and logistics. I engineer secure, highly available multi-tenant SaaS systems, define service boundaries and data models, reduce system latency by 30%+, and I stay focused on resilient, secure delivery—backed by strong DevOps practices and distributed-systems thinking.
Experience
Work history, roles, and key accomplishments
Senior Full Stack Engineer
FiftyX
Jun 2024 - Present (2 years)
Architected and led a high-availability cryptocurrency trading platform supporting 50k+ active traders and 10k+ trades per minute. Improved backend/API throughput and latency by 45% using asynchronous processing, caching, load balancing, and queue-based workflows, while implementing fault-tolerant, concurrency-safe transaction and order processing.
Technical Mentor & Staff
Parach ICT Academy
Jan 2021 - Present (5 years 5 months)
Mentored junior developers and interns by designing structured learning paths in web development and full-stack engineering best practices. Delivered workshops and coached learners through code reviews, TDD, version control workflows, and CI/CD practices to improve code quality and professional readiness.
Full-Stack Systems Architect
Independent Contracts
Feb 2019 - Present (7 years 4 months)
Architected production-grade platforms for fintech, education, and logistics, defining service boundaries, data models, and distributed system designs for scalability and maintainability. Engineered high-performance API ecosystems and integration layers, reducing system latency by 30%+ and delivering multi-tenant SaaS infrastructures for thousands of concurrent users.
Senior Frontend Engineer
LeadCourt
Feb 2025 - Aug 2025 (6 months)
Owned frontend architecture for a B2B lead intelligence platform serving analytics dashboards and search/filter experiences across 100M+ professional records. Improved rendering and data-loading strategies to reduce page load times, and partnered with backend/product teams to define robust API consumption and real-time data pipeline patterns.
Education
Degrees, certifications, and relevant coursework
AWS Certified Developer – Associate
AWS Certified Developer – Associate, AWS
AWS Certified Developer – Associate (in progress).
University of Ibadan
Bachelor of Science, Political Science
Earned a Bachelor of Science in Political Science from the University of Ibadan.
The Polytechnic, Ibadan
National Diploma, Local Government Studies
Completed a National Diploma in Local Government Studies at The Polytechnic, Ibadan.
Udemy
Web Development Bootcamp Certification, Web Development
Completed a Web Development Bootcamp certification on Udemy.
Parach ICT Academy
Software Development Certification, Software Development
Completed a certification in Software Development from Parach ICT Academy.
Online Course
Docker & Kubernetes Mastery Certification, Docker & Kubernetes
Completed a Docker & Kubernetes mastery certification through an online course.
Tech stack
Software and tools used professionally
Postman
Blockchain
Ethereum
GitHub
GitLab
Bitbucket
Kubernetes
Jenkins
GitLab CI
MySQL
PostgreSQL
MongoDB
SQLite
Gmail
Node.js
Django
Next.js
Yarn
Figma
Redis
Visual Studio
Jira
React
JavaScript
Python
HTML5
ES6
PHP
Django REST framework
Linux
GraphQL
Serverless
Zustand
TypeScript
Visual Studio Code
Docker
Formik
NGINX
s3-lambda
Service Layers
npm
Vite
Safe
Jan
Availability
Location
Authorized to work in
Portfolio
leadcourt.comSalary expectations
Job categories
Skills
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