Aifoli
Open to internships & new grad roles

CS student at Ashesi University building backend systems and AI tools.

Shaun Ato Aifoli Esua-Mensah
route.controller.ts
// validated route with guard & pipe
@Post('segments/:id/pricing')
@UseGuards(UserExistsByIdGuard)
async updatePricing(
  @Param('id', PositiveIntPipe) id: number,
  @Body() dto: UpdatePricingDto,
) {
  return this.routeService
    .updateSegmentPricing(id, dto);
}
5
ENGINEERING ROLES
2.8M+
RECORDS ANALYZED
95.97%
MODEL ACCURACY
1
NAACL PAPER

I care about shipping things that actually work.

I'm a software engineer with experience building reliable backend systems and AI-powered tools, backed by NAACL-published research.

CURRENTLY EXPLORING

Scalable backend architectures, AI agents, and developer tooling that makes teams faster. Long-term I want to build systems that bring AI reliably into production.

AREAS OF EXPERTISE
▸
Backend engineering
NestJS APIs, validation pipes, guards, transaction safety, CI/CD quality gates.
▸
AI & ML research
LLM evaluation, formal logic reasoning, model training, NAACL-published research.
▸
Data analytics & pipelines
ETL pipelines, loan analytics at scale, risk modeling, marketing performance analysis.
▸
Full-stack product development
React dashboards, Next.js apps, real-time monitoring, Chrome extensions.

The tools I have worked with.

Python Java TypeScript React Next.js NestJS Node.js Tailwind PostgreSQL MySQL PyTorch TensorFlow
Scikit-learn Pandas NumPy Git GitHub Docker Vercel Postman Jupyter Jest HTML CSS

Growing fast, shipping faster.

Backend Intern · SAI Technology

Mar 2026 — Present

Backend engineer on the SWIFT-OS transport platform and Casa360 AI property management SaaS. Ship features and bug fixes across both products.

  • Built the full Route & Transit Management API for SWIFT Transport (bus stops, pricing, scheduling).
  • Shipped 25+ fixes on Casa360: race conditions, Docker hardening, React Query cache correctness.
  • Introduced Jest coverage thresholds in CI and shared validation pipes across endpoints.
NestJS TypeScript Next.js Docker Jest

Co-Founder & Full-Stack Developer · Code Endelea

Dec 2024 — Present

Co-founded an interactive coding education platform where students watch tutorials, write code, and get AI-guided help in a single tab.

  • Built payment gating and video locking for content monetization.
  • Conducted OWASP Top 10 security audit and cookie/caching hardening.
  • Audited and optimized the video processing pipeline for faster processing times.
React Next.js TypeScript AI / LLMs Video Processing

Software Developer · Ashesi University Logistics

Feb 2026 — May 2026

Built a suite of operations dashboards for the university logistics team: resource monitoring, preventive maintenance, and issue reporting.

  • Built a resource monitoring dashboard tracking 4 water tanks and 2 treatment pipes in real-time.
  • Developed a preventive maintenance dashboard managing 228 scheduled tasks with automated daily email alerts.
  • Designed an issue-reporting dashboard with a 360° virtual campus tour for location-pinned reports.
React Node.js REST APIs Email Automation

Data Intern · FIDO Micro Credit

Jun 2025 — Aug 2025

Data analysis and AI engineering at a fintech company. Analyzed millions of loan records and built an AI-powered Chrome extension for customer service.

  • Analyzed 2,797,709 loan disbursement and repayment records, contributing to a 7% reduction in default rates.
  • Contributed to an ETL pipeline processing Google Ads data weekly, cutting marketing analysis time by 20%.
  • Engineered Axon AI, a Chrome extension that increased customer service response speed by 30%.
Python Pandas Snowflake JavaScript Chrome APIs

ML Researcher · Algoverse AI Research

Nov 2024 — Apr 2025

Applied machine learning researcher focused on evaluating LLM reasoning capabilities on formal logic problems.

  • Trained and tested GPT-4o to solve formal logic problems, reaching 95.97% accuracy on the practice dataset.
  • Demonstrated strong generalization with 99.89% accuracy on completely new logical problems.
  • Co-authored a research paper presented at the NAACL Student Research Workshop (2,307+ attendees).
Python GPT-4o PyTorch Formal Logic
05 — CONTACT

Let's build something together.

I'm currently open to internships and new grad engineering roles, especially teams working on backend systems, AI tools, or data infrastructure. Always happy to network.

Available · responds within 24h
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Shaun_Ato_Aifoli_Esua-Mensah_resume.pdf