Sean Óg McCartan
Software Engineering Student
I'm a Software Engineering Student at Queen's University Belfast, currently on placement with
Intapp.
I'm going to be spending the year getting hands-on with full-stack development and building real software
with C# and .NET
This website is a bit of a sandbox, a place to collect projects, share things I'm working on and keep track
of
what I've learned along the way.
Work Experience
Software Engineering Placement
Intapp Inc. — Belfast, Co. Antrim
August 2025 - Present
Currently 2 months into my placement year, developing across both frontend and backend.
- Working daily with C# .NET, React, JavaScript and SQL, with some exposure to Azure services.
- Maintaining internal management services through regular pull requests and feature updates.
- Gaining experience with authentication, API integrations and database management.
- Beginning to branch into the main product codebase, building familiarity with core service layers and system architecture.
- Will continue to update this section as the year progresses.
Domestic Assistant
Omagh Hospital and Primary Care Complex — Omagh, Co. Tyrone
August 2022 - August 2025
Maintained a 95% Domestic Audit Score in a high-pressure healthcare setting.
- Ensured hospital facilities met stringent cleanliness and sanitary standards
- Performed weekly COVID-19 and high-risk infection control procedures
- Managed hazardous chemicals with precision and safety
- Maintained a professional and approachable demeanor with staff and patients
- Upheld strict patient confidentiality and prioritized their wellbeing
Current Focus
From Student to Developer
This year, I am focused on levelling up from academic experience to real-world software engineering. Key areas I am focused on:
- Adapting to the pace and standards of enterprise development
- Building production-level software
- Refining my habits - consistency, accountability, and clarity
- Getting comforable developing on Linux (read below).
Linux Journey
Windows to Linux
As of the 3rd of October I am daily driving linux.
- Currently running Omarchy on my personal laptop.
- In the process of learning Bash, Vim and the other Linux-esque tools.
- Will update this section with my toughts as time goes on.
Education
BEng Software Engineering
Queen's University — Belfast, Co. Antrim
September 2023 - Present
Currently on Placement Year
A-Levels
Christian Brother's Grammar School — Omagh, Co. Tyrone
September 2016 – June 2023
Physics, Technology & Design, Software Systems Development
Academic Performance
Second Year (May 2025)
- Data Structures and Algorithms - 78%
- Professional Skills - 73%
- Software Engineering - 63%
- Systems Security - 72%
- Service Programming - 60%
First Year (May 2024)
- Databases - 57%
- Maths for Computing - 63%
- Programming (Java) - 58%
- Cyber Security - 69%
- Computer Architecture - 52%
- Design Principles - 46%
A-Levels & AS-Levels
Christian Brothers Grammar School
- A-Levels (2023): Physics - B, Software Systems - A, Tech & Design - A
- AS-Levels (2022): Physics - C, Software Systems - C, Tech & Design - B
Professional Skills
Programming Languages
- Java
- Python
- C#
- C++
- SQL
- ASP.NET Core
Web Technologies
- HTML
- CSS
- JavaScript
- React
Tools & Soft Skills
Projects
Waste Management Educational Platform
Software Engineering & Systems Development Project
September 2024 - March 2025
Developed a real-world solution to address waste management challenges in Johannesburg, focusing on education and awareness.
- Engineered an interactive educational experience using Java, JavaFX, and SceneBuilder that simulates real-world environmental problem-solving
- Designed a modern user interface with CSS styling to enhance user engagement and learning experience
- Implemented Git version control system for seamless team collaboration and efficient code management
- Created comprehensive documentation including detailed unit and acceptance testing according to industry standards
Civil Engineering Microservices System
Service Oriented Programming Project
September 2024 - March 2025
Led a team in developing an integrated API system with multiple microservices for a civil engineering application.
- Architected and integrated three distinct microservices using REST APIs to create a robust and scalable system
- Built the entire solution using Spring Boot and Maven, implementing industry-standard dependency management
- Applied object-oriented programming principles to develop maintainable, extensible code structures
- Gained practical experience in designing and implementing service-oriented architecture for complex enterprise systems
Life Management System
In planning...
Designed as a personal tool to bring structure to life outside work - built using full-stack principles and best practices learned during placement at Intapp.
- Planned Tech: C# / .NET, SQL, HTML/CSS, JavaScript, Notion API
- Some parts still behind closed doors...