Why choose St Mary's University?
Why choose St Mary's University
Top 10 in UK for student experience (Sunday Times Good University Guide 2024)
96% of graduates in employment, vocation or further study within 15 months of graduation (HESA 2024)
Top 5 in UK for teaching quality (Sunday Times Good University Guide 2024)
100% online part-time learning
Pay your fees per module, as you go
11 industry-focused MBA degrees, 5 MSc Computer Science programmes, and 3 MSc Psychology pathways
Get in touch
Advance your expertise in the dynamic field of computer science with St Marys’ 100% online MSc Computer Science
In our digital classroom, you’ll engage in hands-on learning experiences, working on practical assignments, projects, and assessments that foster critical thinking, problem-solving, and technical proficiency.


You’ll develop your capacity to:
- Understand concepts in computer science so you're equipped with the comprehensive knowledge base essential for success in the field.
- Solve real-world problems and apply theoretical knowledge effectively in various technological contexts.
- Apply critical thinking, analytical skills, and problem-solving to tackle complex challenges and develop innovative solutions within the realm of computer science.
- Develop holistic solutions that address societal needs and technological advancements.


And grow your career


With a programme designed for you
Programme Modules
Gain a comprehensive understanding of computer networks, covering both theoretical concepts and practical implementation aspects and explore the fundamentals of networking protocols, network architectures, and various technologies used in modern computer networks.
Gain an in-depth understanding of operating system concepts, principles, and functionalities. You will delve into both theoretical foundations and practical applications, focusing on contemporary operating system architectures and their roles in managing hardware resources, enabling user interaction, and supporting software applications.
Acquire a thorough grasp of software development principles, methodologies, and procedures. This module spans both theoretical foundations and hands-on implementation, with a focus on the software development lifecycle, agile methodologies, coding, debugging, and testing best practices.
Develop a comprehensive understanding of database systems and their significance in various applications. You will explore both theoretical concepts and practical implementation, focusing on the relational model and the use of SQL.
Equip yourself with a comprehensive understanding of contemporary web development principles and practices. You will explore a diverse range of topics essential for crafting interactive and responsive web applications. Through a blend of theoretical exploration and hands-on implementation, you will learn the foundational technologies, frameworks, and best practices prevalent in modern web development.
Explore the critical domain of software testing, which serves as an essential pillar in ensuring the robustness, reliability, and functionality of software applications. You will develop a deep understanding of the integral role that testing plays throughout the software development lifecycle (SDLC). You will explore the strategic application of testing to detect and mitigate errors, thereby enhancing software quality and meeting user expectations.
Develop your understanding of data structures and algorithms, essential components of computer science. You will explore various data structures such as arrays, linked lists, stacks, queues, trees, and graphs, along with algorithms for searching, sorting, and graph traversal. The module emphasises both theoretical concepts and practical implementation, preparing you to design efficient algorithms and use appropriate data structures to solve computational problems.
Gain a comprehensive understanding of artificial intelligence (AI) principles, techniques, and applications. You will deep dive into AI, covering both theoretical foundations and practical implementation aspects, and explore a wide range of topics, including problem-solving methods, knowledge representation, reasoning, intelligent agent design, and ethical considerations in AI development and deployment.
Gain an immersive exploration into the realm of computer-generated imagery with both theoretical foundations and practical applications. This module serves as a gateway to understanding the principles, techniques, and applications of computer graphics across various industries, including entertainment, design, simulation, and visualisation.
Learn the principles, theories, and practical methodologies involved in designing effective interactive systems. You will delve into the dynamic interplay between humans and computers, focusing on the design, evaluation, and optimisation of user interfaces to enhance usability, accessibility, and user experience (UX) across diverse platforms and contexts.
Examine the concepts, technologies, and applications of the Internet of Things (IoT). You will explore how interconnected devices, sensors, and systems are revolutionising various industries and domains. You will cover both theoretical foundations and practical implementations of IoT, including communication protocols, data analytics, security, and ethical considerations.
Learn about the DevOps principles, practices, and tools essential to modern software development and IT operations. DevOps, a portmanteau of "development" and "operations," represents a cultural and technical movement that emphasises collaboration, automation, and integration between software developers and IT operations professionals. You will delve into various aspects of DevOps, including version control systems, continuous integration, and continuous deployment (CI/CD), infrastructure as code (IaC), configuration management, containerisation, and monitoring.
Immerse yourself in the dynamic and crucial field of visual representation of data. In an era dominated by data, effectively communicating insights, patterns, and trends through compelling visualisations is paramount. You’ll gain an in-depth understanding of data visualisation techniques' theoretical foundations and practical applications across various domains.
Online Postgraduate Courses
MSc Computer Science
Advance your career with St Mary's University London's online MSc Computer Science, gaining skills to build innovative software and systems and thrive in a fast-moving sector.
Why choose St Mary's University?
Why choose St Mary's University
Top 10 in UK for teaching quality (Sunday Times Good University Guide 2025)
12th in the UK for Student Satisfaction (Complete University Guide 2026)
78% of graduates in skilled employment and on track to achieve their future goals (Complete University Guide 2026)
100% online, part-time learning
Pay your fees per module, as you go
11 industry-focused MBA degrees, 5 MSc Computer Science programmes, and 3 MSc Psychology pathways
Get in touch
Programme overview
Build a dynamic career in computing with St Mary's University London's online MSc Computer Science
Designed for ambitious professionals ready to advance in cutting-edge computing, this MSc prepares you for roles across sectors – from finance to healthcare – where software engineering, AI and data science drive organisational success.
You'll study online with expert tutors at St Mary's University London, applying your learning immediately to workplace challenges while building a global professional network.
Through hands-on modules, practical assignments and group projects, you'll develop critical thinking and technical skills to program, design systems, analyse data and develop software that solves real problems. You'll master core computer science fundamentals, deepening your understanding of networks, operating systems and emerging technologies – from AI to human-computer interfaces – to create smarter, more resilient digital solutions.
Why should I choose St Mary's University London?
St Mary's University London is ranked:
- Top 10 in the UK for teaching quality (Sunday Times Good University Guide 2025)
- 12th in the UK for Student Satisfaction (Complete University Guide 2026)
- 78% of graduates are in skilled employment and on track to achieve their future goals (Complete University Guide 2026).
Our 100% online MSc is built for working professionals. With fully flexible, part-time online learning, you can balance your studies with career and personal commitments. Supported by expert tutors and a collaborative virtual environment, you'll gain practical, career-relevant knowledge without putting your life on hold.
What you'll learn
What will I learn?
You'll gain in-demand computer science skills to excel in today's technology-driven world. Throughout the programme, you will:
- Understand core computer science concepts to build strong technical systems and foundations
- Apply theory to solve real problems in diverse technological contexts
- Use critical thinking to create innovative solutions to complex challenges
- Develop holistic computing solutions that address societal and technological needs
Modules include:
Career advancement
How will an MSc Computer Science boost my career?
Computer science skills are in high demand as businesses rely more on technology and data to drive success. Graduates are well prepared for roles including:
Software Developer
building reliable software solutions that meet user needs.
Data Scientist
creating predictive models that generate actionable business insights.
Network Architect
designing secure, scalable networks that support organisational performance.
Security Analyst
protecting systems by identifying and mitigating cybersecurity threats.
Entry requirements
What qualifications do I need for the online MSc Computer Science at St Mary's University London?
We welcome ambitious professionals from a wide range of backgrounds.
Academic requirements
A 2:2 undergraduate degree (or equivalent) or three years of relevant professional experience in a managerial role. Applicants without a degree but with substantial experience may also be considered.
If English isn't your first language, you may need to provide evidence of your English language ability. We accept the following qualifications (or equivalents):
- IELTS 6.0 overall with no band below 5.5
- Pearson PTE 55 overall minimum
- Other recognised tests including TOEFL, LanguageCert and Cambridge qualifications
You must have completed your English test within two years of your programme start date.
You may not need to provide evidence if you're from a majority English-speaking country or have completed a degree in English within seven years of your intended start date.
Fees
How much does it cost to do this course?
The total cost for MSc Computer Science is £7,740. You can choose to pay in full at the start of your programme or pay per module.
FAQs
Frequently asked questions
If you meet the academic and language requirements above, you can apply even if your undergraduate degree isn't in computer science. Applicants with significant professional experience are encouraged to apply.
Yes, the programme is designed to be studied fully online and flexibly, allowing you to balance learning with work and personal commitments.
Absolutely – this programme is ideal for professionals who want to transition into computer science and technology careers.
You will need to meet one of the accepted qualifications listed above (such as IELTS 6.0 or equivalent).
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