Arnovi Jimenez

Full-stack developer and AI master’s student

Arnovi Jimenez

I build robust, scalable, and user-centered digital solutions — from concept to deployment.

Get in touch View journey

Now

AI Trainer at Outlier, evaluating and improving language models with RLHF

Master’s in AI and Software Engineering at IMT Mines Alès, France

Web, mobile, cloud and artificial intelligence. Software, end to end.

Turning ideas into digital solutions

I’m a web and mobile developer. I build robust, scalable, user-oriented solutions with React, Flutter, WordPress and AWS cloud services. Today I help train frontier language models while studying for a master’s in artificial intelligence in France.

I stand out for my ability to learn quickly, adapt to different work environments, and a solid skill set for understanding and abstracting complex problems into efficient technical solutions. I maintain meticulous attention to detail at every stage of development.

I studied Computer Science at Universidad Tecnológica de Pereira and I’m continuing with an international double degree at IMT Mines Alès, an engineering school of the Institut Mines-Télécom, focused on software design and artificial intelligence.

Location
Alès, France
From
Cartago, Colombia
Experience
3+ years
Focus
Full-stack, cloud, mobile and AI
Email
arnovi.jimenez1@gmail.com
LinkedIn
/in/arnovi
GitHub
Arnovii

Languages

SpanishNative
EnglishB2
FrenchB2

Common European Framework of Reference (CEFR) levels.

From Pereira to Alès

Experience and education, in chronological order.

WorkStudies

  1. StudiesJuly 2021 – present

    Computer Science

    Universidad Tecnológica de Pereira

    Pereira, Colombia

    Comprehensive training in software engineering, systems architecture, algorithms, databases and artificial intelligence, with a practical focus on full-stack development. European Qualifications Framework level 6.

  2. WorkJanuary 2023 – September 2025

    Webzilla

    Web Developer

    Pereira, Colombia

    • Designed custom websites and web applications using React, JavaScript, FlutterFlow and WordPress.
    • Integrated external APIs, such as payment gateways and analytics tools, to automate key processes and deliver a seamless experience from entry to final transaction.
    • SEO strategies to improve search rankings, along with UX/UI design focused on navigation and user retention.

    React, JavaScript, FlutterFlow, WordPress, SEO, UX/UI, APIs

  3. StudiesJune – July 2023

    Full-Stack Developer with AI tools

    Universidad Tecnológica de Pereira

    Pereira, Colombia

    Specialized program on AI tools for process optimization and on algorithmic thinking applied to web development.

  4. WorkMay 2024 – March 2026

    Wijex

    Full-Stack & Cloud Developer

    Pereira, Colombia

    • Developed and maintained mobile apps with Flutter, web applications with React and TypeScript, and dynamic WordPress sites, integrating technologies across the whole project lifecycle.
    • Scalable, high-performance solutions with AWS Amplify and AWS services (Lambda, S3, CloudFront) to improve backend efficiency and cloud infrastructure.
    • Worked in agile teams from planning to deployment. Part of the team that launched Super App wijeX on the App Store and Google Play.

    Flutter, React, TypeScript, WordPress, AWS Amplify, Lambda, S3, CloudFront

  5. WorkApril 2026 – present

    Outlier

    AI Trainer: Coding & LLM Evaluation, RLHF

    Remote

    I contribute to the development of frontier large language models (LLMs) through reinforcement learning from human feedback (RLHF), creating high-quality programming tasks, reference implementations and evaluation criteria used to improve model performance.

    RLHF, Python, LLM evaluation, prompt engineering

  6. StudiesJuly 2026 – September 2028In progress

    Master of Engineering: Artificial Intelligence and Software Engineering

    IMT Mines Alès

    Alès, France

    International double degree with Universidad Tecnológica de Pereira. CTI-accredited engineering degree conferring a master’s degree (European Qualifications Framework level 7), focused on software design and artificial intelligence.

  7. ExpectedSeptember 2028

    Next stop: IMT Mines Alès engineering degree

    Expected graduation from the double degree.

Projects

Super App wijeX

Wijex, 2024 – 2026. Flutter and AWS

The first super app built to digitally transform small businesses in Latin America: AI-assisted business management, online sales and customer communication in a single ecosystem. I was part of the team that built it with Flutter and AWS, with real-time sync and a scalable backend designed for thousands of users.

App Store Google Play superappwijex.com

Eight modules, one ecosystem

  • mIA wijeXAI assistant
  • WebcardLanding page builder
  • ComprartirFree e-commerce platform
  • wijeX AcademyCourses and certifications
  • Red Social wijeXBuilt-in social network
  • BackofficeBack office for digital consultants
  • ventaXAutomated sales assistant
  • Gestor AppFinancial management

Fuerza Dental

Corporate WordPress site

Website for a full-service dental clinic presenting its identity, values and specialties (cosmetic dentistry, orthodontics, endodontics, oral rehabilitation and periodontics) in a modern, responsive experience designed to attract new patients.

fuerzadental.com

GitHub

Arnovii

Repositories with web projects, backend systems and more. Always open to learning, collaborating and contributing.

github.com/Arnovii

Tech stack

In orange: where I’ve used each technology professionally.

Languages

  • JavaScriptWebzilla
  • TypeScriptWijex
  • PythonOutlier
  • DartWijex
  • Java
  • C++
  • HTML5
  • CSS3

Frontend & mobile

  • ReactWijex, Webzilla
  • FlutterWijex
  • FlutterFlowWebzilla
  • WordPressWijex, Webzilla
  • Tailwind CSS

Backend & cloud

  • AWSWijex
  • Node.js
  • NestJS
  • Express
  • Prisma
  • MySQL
  • Supabase
  • Firebase

Artificial intelligence

  • RLHFOutlier
  • LLM evaluationOutlier
  • Prompt engineering
  • AI tools

Tools

  • Git
  • GitHub
  • Docker
  • Postman
  • VS Code
  • Figma

Competencies

  • Teamwork and collaboration
  • Critical thinking and logical reasoning
  • API integration
  • Agile methodologies
  • Remote work

Interests

  • Artificial intelligence
  • Data science
  • Cloud computing
  • Software architecture
  • Open source

Open to new opportunities

Shall we work together?

I’m open to new opportunities, collaborations, and challenging projects. Don’t hesitate to reach out.

Alès, France, --:-- local time

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