Joao Atan
I'm a Developer
About
I'm a physics-trained full-stack software developer, building practical web applications while bringing experience in analytics, operations, HR, and project delivery.
Full-Stack Software Developer
MSc Distinction Graduate in Physics with extensive management, operations and HR experience. Two successfully deployed full-stack web-development projects. Completed Codecademy's Full-Stack Software Engineering Career Path.
- Focus: Full-Stack Development
- City: Cambridge, UK
- Degree: MSc Gravity, Particles and Fields
- Open to: Software engineering roles
I am transitioning into software development with a distinctive background in physics, HR, operations, analytics, and people-focused delivery. My previous roles have strengthened the way I approach software: with analytical thinking, clear communication, structured problem-solving, and an understanding of how technical systems support real teams and workflows.
At Amazon, I resolved over 100 complex employee relations cases, supported the launch of 3 new UK sites, and received a certificate of excellence for my contribution to workplace inclusivity. I also led teams of up to 36 people while overseeing end-to-end operations for an Amazon Vendor Flex node, delivering record-breaking outbound performance across the 2024 and 2025 peak holiday seasons. Additional experience in B2B sales, customer service, and tutoring has further shaped my ability to explain complex ideas, collaborate effectively, and deliver under pressure.
Core Strengths
A blend of mathematical training, programming experience, analytics work, and client-facing delivery.
Mathematical Modelling
Advanced mathematical reasoning applied to theoretical physics, formal models, and abstract problem-solving.
- Applied advanced Differential Geometry and Topology models to describe physical phenomena.
- Reviewed SO(7,7)-based geometric structures, GUT extensions of Standard Model physics, and gravity-motivated descriptions of Standard Model fermions.
- Explored fermionic Lagrangian construction using differential forms.
Data & Analytics
Analytical thinking developed through business reporting, HR metrics, and evidence-led decision support.
- Developed analytics for engagement, attrition, and workforce metrics.
- Presented findings in weekly business reviews.
- Supported data-informed decisions across the business.
Programming & Technical Skills
Practical programming and IT skills built through academic study, self-directed learning, and project work.
- Proficient in JavaScript, Python, C, Excel, and data analysis tools.
- Completed MSc computing, programming, and data-analysis courses.
- Studied frontend, backend, and interactive web development.
Communication & Delivery
Strong communication, teamwork, and deadline management from client-facing and employee-focused work.
- Handled employee relations cases and sensitive employee data.
- Negotiated and secured business contracts.
- Maintained client relationships throughout project delivery.
Skills
Technical skills developed through hands-on project work, including two fully deployed full-stack web applications.
Practical experience across the full development lifecycle: planning, responsive interface design, back-end logic, database management, API integration, version control, and deployment.
HTML5
CSS3
Bootstrap
JavaScript
jQuery
React
Node.js
Express
Python
Java
C#
MATLAB
R
LaTeX
PostgreSQL / SQL
PHP
Git
GitHub
Curriculum Vitae
A summary of my path from physics and mathematical modelling into software development, supported by experience in data analytics, HR, operations management, and project delivery.
Summary
Joao Atan
Software developer with a strong physics and mathematics background and an MSc in Gravity, Particles and Fields, as well as extensive operations and HR experience.
- Based in Cambridge, UK
Education
Distinction MSc Gravity, Particles & Fields
2019 - 2020
University of Nottingham, Nottingham, UK
Modules Included: Quantum Information Theory; Quantum Field Theory; Advanced Gravity; others
GPA 80%
Awarded a Master's scholarship due to academic excellence.
1st Class Bachelor's Degree in Physics
2015 - 2019
Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
GPA 82%
Awarded a financial scholarship and Honourable Mention for my research project in string theory and D-brane cosmology.
Certifications
Full-Stack Software Engineer Career Path
2026
Codecademy
Completed an intensive full-stack software engineering programme covering HTML, CSS, JavaScript, React, Node.js, Express, Python, Java, C#, SQL, PostgreSQL, Git, GitHub, testing, authentication, and deployment.
Practical Python for AI Coding
2022
Korea Advanced Institute of Science and Technology (KAIST) | Coursera
Completed a practical Python programming course focused on foundational coding skills for AI-related applications.
Professional Experience
Vendor Flex Cluster Assistant
2024 - Present | Amazon UK
Currently I coordinate warehouse operations, workforce allocation, and shift planning across inbound, outbound, and quality control, using data-led decisions to improve productivity, process execution, and associate experience. Broke site records for hourly rate and total shipped volume during consecutive holiday periods.
Human Resources Associate Partner
2021 - 2024 | Amazon UK
Supported employee relations, HR reporting, workforce planning, and operational people projects, using data analysis and stakeholder communication to improve employee support, compliance, and engagement. Recognised with a certificate of excellence for performance and inclusivity.
Human Resources Partner — Step-Up Role
2022 - 2023 | Amazon UK
Managed 100+ complex employee relations cases, weekly HR analytics, senior stakeholder communication, and regional/site initiatives, strengthening analytical problem-solving, documentation, process ownership, and cross-functional collaboration.
Fulfilment Centre Associate
2020 - 2021 | Amazon UK
Built hands-on understanding of fulfilment operations, warehouse workflows, stock management, productivity standards, and process improvement, progressing from frontline operations into HR and leadership roles after receiving Peak performance recognition.
Sales Assistant
2017 - 2019 | SSJ Serviços Técnicos | Rio de Janeiro, Brazil
Supported B2B customer communication, technical service promotion, contract support, and client relationship management, developing requirements gathering, commercial awareness, and customer-focused problem-solving skills.
Classical Mechanics Tutor
2015 - 2017 | Federal University of Rio de Janeiro & Colégio Qi | Rio de Janeiro, Brazil
Tutored physics, mathematics, and classical mechanics to high school and undergraduate students, developing technical communication, analytical reasoning, mentoring, and the ability to explain complex concepts clearly.
Portfolio
A selection of full-stack projects showcasing technical skills, practical problem-solving, clean implementation, and end-to-end delivery.
Contact
Interested in collaborating or discussing a project? Get in touch.
Location
Cambridge, UK