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.
- Website: www.joaoatan.co.uk
- 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, focused on building clear, reliable web applications and technical projects from concept through to polished delivery.
- Based in Cambridge, UK
- hello@joaoatan.co.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%
Was 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%
Was 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
Coordinated inbound, outbound, and quality control operations within a warehouse environment, supporting daily planning, workforce allocation, and process execution. Worked closely with associates and leadership teams to improve productivity, shift organisation, and employee experience.
- Broke records for both highest hourly rate and highest total volume shipped during two consecutive holiday periods, 2024 and 2025.
- Acquired deeply refined operational management skills by expertly coordinating inbound, outbound, and quality control activities throughout a whole warehouse.
- Thorough people management skills developed by assigning daily responsibilities to each employee and designing daily shift plans, with the focus of creating ideal working environments that enhanced employee well-being and productivity.
Human Resources Associate Partner
2021 - 2024
Amazon UK
Supported employees and leadership teams across employee relations, engagement, workforce planning, HR data analysis, and site-level projects. Acted as a key point of contact for employee queries, conflict resolution, policy guidance, and operational HR support.
- Managed employee queries, workplace concerns, and conflict resolution in a fast-paced operational environment.
- Conducted individual redundancy consultations, ensuring compliance, clarity, and support for affected employees.
- Conducted individual redundancy consultations, ensuring compliance, clarity, and support for affected employees.
- Organised a career and education programme fair focused on employee development and inclusion.
- Received a certificate of excellence for performance, with particular recognition for commitment to inclusivity.
Human Resources Partner — Step-Up Role
2022 - 2023
Amazon UK
Selected for a six-month HR Partner step-up position, taking on complex employee relations cases, regional projects, HR analytics, and senior stakeholder communication.
- Completed over 100 complex employee relations cases, including grievances, appeals, conduct investigations, and sensitive workplace matters.
- Delivered weekly HR analytics covering attendance, engagement, attrition, and other people metrics for business reviews.
- Collaborated with senior HR, Operations, and Corporate stakeholders on site-level decisions and employee-impacting initiatives.
- Supported regional and site-level projects affecting large employee populations.
Fulfilment Centre Associate
2020 - 2021
Amazon UK
Worked across fulfilment centre operations, developing strong knowledge of stock management, warehouse processes, productivity standards, and frontline operational execution.
- Built hands-on experience across Amazon fulfilment operations.
- Recognised with performance accolades during the 2020 Peak period.
- Progressed from frontline operations into HR and leadership roles.
Sales Assistant
2017 - 2019
SSJ Serviços Técnicos | Rio de Janeiro, Brazil
Supported B2B customer communication, service promotion and contract support within a technical services environment.
- Handled customer queries and supported business contract development.
- Promoted services to prospective clients and maintained customer relationships.
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 strong communication, teaching, mentoring, and analytical explanation skills.
- Prepared and delivered lessons for students with different learning styles and academic backgrounds.
- Led coaching groups and supported students with subject-specific and general academic development.
- Collaborated with other tutors to deliver combined physics and mathematics sessions.
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
hello@joaoatan.co.uk