Junior Data Scientist jobs in Wales

Jobs found: 202
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Digitech Resourcing
Cardiff

You will work across a variety of complex analytical problems, owning experimentation end-to-end—even when ideal conditions such as user randomisation or high statistical power are not present.

2 days ago
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Thyme
Newport

Data Scientist - £70k | Remote / Hybrid | FinTech / Payments We’re working with an established FinTech / Payments business that has been helping customers manage and move money globally for many years. The company builds technology-led products that support low-cost, multi-currency payments and money management, operating across several regulated markets. They’re now investing further in their...

Hybrid
2 days ago
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trg.recruitment
Cardiff

You will work on real production problems rather than research-only work, owning models from first iteration through to live deployment.

You will collaborate closely with other data scientists, data engineers, and DevOps, with the freedom to shape how GenAI and ML are used across the platform.

4 days ago
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Russell Tobin
Newport

You will work on modernizing authentication and login experiences across multiple consumer applications, helping drive growth through high-quality user experience, experimentation, and data-driven decision making. This is a collaborative role, working closely with engineers, product managers, and cross-functional partners in a fast-paced environment.

8 hours ago
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Sport Wales
Cardiff
£40,000

Performance Data Scientist Department - Sport System Institute Services Salary - £41,574.01 (pro rata - £25,281.49) Working Hours - 3 days per week (22.5 hours) 12 months fixed term contract Location - Sport Wales National Centre, Cardiff Closing Date - 6th February 2026 9am Provisional Interview Date - 19th February 2026 Please go to our website to view the full advert and job description and...

2 hours ago
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Exposed Solutions
Newbridge
20 hours ago
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DataAnnotation
Wrexham

Job Description Join the DataAnnotation team and contribute to developing cutting-edge AI systems, while enjoying the flexibility of remote work and setting your own schedule. We are looking for an expert Physicist (part-time work from home) to help advance AI development. As a member of DataAnnotation’s Physics team, you’ll be part of a growing community of over 100,000 experts who are driving...

Remote
10 hours ago
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Ernest Gordon Recruitment Limited
Pontypridd

You will receive hands-on training while working across land and topographic surveys, data processing and site support within a supportive, close-knit team. This role would suit a Junior Surveyor or similar to gain qualifications and develop technical expertise within a stable and growing organisation.

2 days ago
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Howells Recruitment
Cardiff

Job Description This role is ideal for an individual at an early stage of their estimating career who is looking to develop strong commercial and technical skills within a structured and supportive environment. The Junior Estimator will work closely with senior estimators, commercial managers and operational teams, gaining hands-on experience across the full estimating and tendering...

No Experience
2 days ago
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SystemsX
Cardiff

Job Description About SystemsX At SystemsX, we’re a fast-growing technology company specialising in AI-driven solutions for customer-centric businesses such as call centres and service organisations. Our mission is to use innovative technology to improve operations, customer experience, and business growth. As we expand rapidly, we offer our team the opportunity to grow with us, take real...

Remote
10 hours ago
Macrogen Europe
Cardiff

Macrogen Europe BV is a leading provider of genome sequencing services for academic and clinical research, as well as the life sciences industry. We provide flexible, fast sequencing of DNA and RNA with comprehensive, reliable data. Our services are available across Europe and Africa and include whole genome, whole exome, and targeted sequencing – as well as transcriptome, epigenome, metagenome,...

8 hours ago
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trg.recruitment
Newport

You will work on real production problems rather than research-only work, owning models from first iteration through to live deployment.

You will collaborate closely with other data scientists, data engineers, and DevOps, with the freedom to shape how GenAI and ML are used across the platform.

4 days ago
Bookmark Not interested
Thyme
Cardiff

Data Scientist - £70k | Remote / Hybrid | FinTech / Payments We’re working with an established FinTech / Payments business that has been helping customers manage and move money globally for many years. The company builds technology-led products that support low-cost, multi-currency payments and money management, operating across several regulated markets. They’re now investing further in their...

Hybrid
2 days ago
Bookmark Not interested
SystemsX
Grangetown Community

About SystemsX At SystemsX, we’re a fast-growing technology company specialising in AI-driven solutions for customer-centric businesses such as call centres and service organisations. Our mission is to use innovative technology to improve operations, customer experience, and business growth. As we expand rapidly, we offer our team the opportunity to grow with us, take real ownership of their...

Remote
8 hours ago
Macrogen Europe
Newport

Macrogen Europe BV is a leading provider of genome sequencing services for academic and clinical research, as well as the life sciences industry. We provide flexible, fast sequencing of DNA and RNA with comprehensive, reliable data. Our services are available across Europe and Africa and include whole genome, whole exome, and targeted sequencing – as well as transcriptome, epigenome, metagenome,...

8 hours ago
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Junior Data Scientist, Wales
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Digitech Resourcing
Newport

You will work across a variety of complex analytical problems, owning experimentation end-to-end—even when ideal conditions such as user randomisation or high statistical power are not present.

2 days ago
Bookmark Not interested
Russell Tobin
Cardiff

You will work on modernizing authentication and login experiences across multiple consumer applications, helping drive growth through high-quality user experience, experimentation, and data-driven decision making. This is a collaborative role, working closely with engineers, product managers, and cross-functional partners in a fast-paced environment.

8 hours ago
DataAnnotation
Cardiff

Job Description Join the DataAnnotation team and contribute to developing cutting-edge AI systems, while enjoying the flexibility of remote work and setting your own schedule. We are looking for an expert Biologist (part-time work from home) to help advance AI development. As a member of DataAnnotation’s Biology team, you’ll be part of a growing community of over 100,000 experts who are driving...

Remote
10 hours ago
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SystemsX
Newport

About SystemsX At SystemsX, we're a fast-growing technology company specialising in AI-driven solutions for customer-centric businesses such as call centres and service organisations. Our mission is to use innovative technology to improve operations, customer experience, and business growth. As we expand rapidly, we offer our team the opportunity to grow with us, take real ownership of their...

Remote
an hour ago
Bookmark Not interested
DataAnnotation
Cardiff

Job DescriptionJoin the DataAnnotation team and contribute to developing cutting-edge AI systems, while enjoying the flexibility of remote work and setting your own schedule.We are looking for an expert Physicist (part-time work from home) to help advance AI development. As a member of DataAnnotation’s Physics team, you’ll be part of a growing community of over 100,000 experts who are driving...

Remote
8 hours ago
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