Kessé Emmanuel SIGUI

Senior Software Architect · Platform Engineer · Open Source Maintainer
📍 Abidjan, Ivory Coast · Remote

"I design highly resilient distributed architectures, multi-tenant platforms, and critical cross-runtime performance tooling by combining software architecture, full-stack engineering, data intelligence (BI/AI), and cloud infrastructure."

✉️ Email: siguici@proton.me 🌐 Web: siguici.sikessem.com 🐙 GitHub: github.com/siguici 💼 LinkedIn: linkedin.com/in/siguici

Executive Professional Profile

Senior Software Engineer & Software Architect with 10+ years of experience engineering complex digital platforms. Specialized in bridging business goals with resilient, highly scalable, and long-lasting technical architectures. Covers the entire product lifecycle: requirement analysis, domain modeling (DDD), system architecture, full-stack development, automated QA, and cloud infrastructure. Combining software engineering with a strong background in Data Intelligence (Big Data & BI), I excel at executing greenfield products as well as modernizing legacy systems with zero downtime.

Core Strengths & Highlights

Pragmatic Software Architecture (DDD, Clean, Hexagonal, Modular Monolith) Platform Engineering, Multi-tenancy & API Design (REST, GraphQL, gRPC) Cross-Runtime Engineering (Node.js, Deno, Bun) & Vlang Systems Developer Experience (DX) & Custom Tooling Engineering Data Intelligence & AI Integration (BI, Dashboards, RAG, LLM Agents) CI/CD, Automation & Infra Orchestration (GitHub Actions, Docker, Linux VPS) Design Systems & UI Component Libraries (SigUI, Tailwind Extensions) Testing, QA & Advanced Static Analysis (Pest, PHPStan, Psalm, Rector)

Core Engineering Capabilities

End-to-End Product Engineering

Translates strategic goals into production-ready software: functional scoping, domain modeling (DDD), resilient API design, modern reactive full-stack development, and automated QA.

Software Architecture & Legacy Modernization

Pragmatic architectural design using DDD, Clean Architecture, Hexagonal patterns, and Modular Monoliths. Conducts deep technical audits, technical debt reduction, and zero-downtime refactoring.

Data Intelligence, BI & AI Integration

Leverages a solid academic foundation in Big Data & BI (Master 1) to build robust data pipelines, executive BI dashboards, and embed tailored AI capabilities (LLMs, RAG architectures, intelligent agents).

DevOps, Cloud & DX Tooling

Pragmatic and automated infrastructure setups: Docker containerization, reverse proxy configuration (Caddy/Nginx), robust CI/CD pipelines (GitHub Actions), and developer velocity tooling.

Professional Experience

Co-Founder & CTO @ Glaxuss Tech

2024 — Present

Technical Leadership, Native Cross-Runtime Architecture & Cloud Infrastructures

Architecting and modeling complex decoupled software foundations for high-availability enterprise products.

  • ▸ Architecture & Domain Scoping: Modeled complex decoupled system architectures built on SOLID principles and Domain-Driven Design (DDD).
  • ▸ Cross-Runtime Engineering: Engineered native cross-runtime software foundations unifying and optimizing executions across Node.js, Deno, and Bun environments.
  • ▸ Cloud Orchestration & CI/CD: Orchestrated high-availability cloud infrastructure and automated deployment pipelines ensuring seamless continuous delivery.

Founder & Lead Software Architect @ Sikessem (Digital Operating Ecosystem)

2020 — Present

Modular Digital Operating System (DOS) & Multi-Tenant Foundations

Designed and built Sikessem, a modular Digital Operating System serving as a unified underlying foundation for modern digital web applications.

  • ▸ Ecosystem Vision (DOS): Engineered a modular platform foundation supporting strict organization-level multi-tenancy.
  • ▸ Core Module Engineering: Developed essential building blocks: Core, Auth, Marketplace, CMS, Learning (Studium), Communication (Shub), and the SigUI Design System.
  • ▸ Ecosystem Tooling: Created Cup (a fast selector-driven HTML/Markdown template compiler for Deno/TypeScript) and Loom (a decoupled backend framework).
  • ▸ Delivery Pipeline & Automation: Automated multi-environment CI/CD workflows (GitHub Actions), Docker deployments, and Caddy reverse proxy routing on Linux VPS setups.

Senior Software Engineer & Architecture Consultant @ Independent Consulting & Enterprise Clients

2016 — 2024

Custom SaaS, Fintech, Executive BI Systems, E-Commerce & Legacy Refactoring

Partnered with enterprises and institutions to architect mission-critical web platforms and modernize legacy systems.

  • ▸ Legacy Modernization & Refactoring: Conducted system audits and executed progressive zero-downtime refactoring from monolithic codebases to Clean Architecture / DDD.
  • ▸ Full-Stack Engineering: Engineered high-performance backend systems (Laravel, Symfony, PostgreSQL, Go) coupled with modern reactive frontends (Astro, Vue.js, Inertia.js, Livewire, Alpine.js, Tailwind CSS).
  • ▸ Fintech & Financial Integrations: Integrated secure mobile payment gateways (Moov Money, card processors) and split-payment microservices (Spring Boot / Angular).
  • ▸ Business Intelligence & AI Agents: Built custom analytics dashboards, automated ETL data pipelines, and integrated RAG architectures with LLMs for intelligent search and reporting.
  • ▸ Enterprise Solutions: Delivered custom software systems for the Tunisian Post, multi-vendor marketplaces (Melanoderme), LMS platforms (Studium), and resort digital systems (Mawla Kiélé).

Maintainer & Active Contributor @ Open Source Community

2020 — Present (Intensified since 2022)

Languages, DX Tooling, Web Frameworks & Automation

Creator of independent open-source tools and active contributor to major modern web development projects.

  • ▸ Core Web Framework Contributions: Recognized code contributions to major web ecosystem projects (specifically Astro / Qwik integration).
  • ▸ Language Specification & Compilation (Phi): Authored specifications for Phi (a PHP superset written in Vlang): EBNF grammar, lexer, parser, REPL, and strict error handling via native `or` blocks.
  • ▸ CI/CD & DX Tooling: Created the Setup JS GitHub Action for environment provisioning, along with Tailwind CSS extension tools (colorwind, plugwind.js).

Key Projects & Achievements

Sikessem — Digital Operating System (DOS) & Multi-Tenant Core

Modular multi-tenant foundation and next-gen social web application platform engineered for enterprise performance.

Melanoderme — Multi-Vendor E-Commerce Marketplace

Large-scale e-commerce platform managing multi-store data architectures, distribution workflows, and automated payment integrations.

Enterprise & Postal Systems — Fintech, Administration & Logistics

Management software for the Tunisian Post, split-payment microservices (Spring Boot / Angular), and custom enterprise portals (PDC, TSA).

Phi & Phix — Programming Language & PHP Superset (written in Vlang)

Design and grammar specification of a PHP superset written in Vlang. Features custom lexer/parser, interactive REPL, and strict error handling using native `or` blocks.

colorwind / plugwind.js — Developer Tools for TailwindCSS

Tools focused on TailwindCSS customization and color system generation.

Setup JS GitHub Action — CI/CD Automation Tool

Automation tooling for JavaScript/TypeScript development environments and CI workflows.

Technical Expertise & Stack

Architecture & Modeling:
Domain-Driven Design (DDD)Clean & Hexagonal ArchitectureSOLID PrinciplesModular MonolithsMulti-tenancyCloud Native PracticesAPI Design (REST, GraphQL, gRPC)
Backend & Runtimes:
PHP (Laravel / Symfony)TypeScript (Node.js / Deno / Bun)VlangGo
Frontend & UI:
TypeScript / JavaScriptAstroQwikReact EcosystemVue.js / Inertia.jsLivewire / Alpine.jshtmxTailwind CSS & Design Systems
Databases & Storage:
PostgreSQLMySQLRedisSQLiteNeo4jORM & Query Builders (Prisma, Eloquent, Kysely)
Testing, QA & Static Analysis:
PestPHPStanPsalmRectorStatic Analysis & Linters
AI & Data Intelligence:
BI & Analytics DashboardsAI Agents & LLMsRAG ArchitecturesData Pipelines
Infrastructure & DevOps:
DockerLinux VPS (Ubuntu / Debian)Caddy / Nginx / ApacheGitHub Actions CI/CD
Tooling & Developer Experience (DX):
Just (Command Runner)TypstGit & GitHub Workflows

Education & Languages

Master 1 in Big Data & Data Science 2022 — 2023
Leaders University (Nabeul, Tunisia)
Bachelor's Degree in Business Intelligence (BI) 2019 — 2022
Mediterranean Institute of Tunisia (MIT Nabeul)
High School Diploma (Baccalauréat Series D) 2011 — 2014
Lycée Classique d'Abidjan (Ivory Coast)
French : Native / Bilingual
English : Technical & Professional