C

programming language, systems programming, low level
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The grandparent of modern programming languages and still the backbone of performance-critical systems. If your data engineering involves crafting high-performance ETL pipelines, database engines, or wrangling embedded systems, C is the ultimate low-level power tool. It’s lean, fast, and gives you granular control over memory—perfect for squeezing every ounce of performance out of your hardware.
But let’s not romanticize it too much. C is also unforgiving: no hand-holding, no garbage collection, and a single misplaced pointer can cause catastrophic bugs or security nightmares. It’s not the go-to for most data engineering tasks these days (Python, Scala, or Go will get you there faster), but if you’re optimizing critical systems or working close to the metal, C remains unmatched. Use it wisely—like a scalpel, not a chainsaw.

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Jobs in using C for but please no

data scientist

Graduate Programme - Customer Success @ fospha

GB | 2025-12-28
This role is a high-impact, fast-paced opportunity for a data engineer to contribute to a pioneering, privacy-safe marketing measurement platform. The position requires deep technical expertise in... read more »
Marketing, Analytics, Funnel, Go, C, Management, GenAI, Excel, AI/ML
data scientist

London Office - Senior Associate - Data, Digital & AI - (M/F/D) @ lekconsulting

GB | 2025-12-27
L.E.K. Consulting seeks a Senior Associate in its Data, Digital and AI team to support analytical projects using digital and AI techniques. The role's differentiator is the rare chance to blend... read more »
Analytics, AI/ML, Data Quality, Data Governance, Python, SQL, DataViz, C
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O'Reilly Power BI Learning

Master Power BI fast: build basic-to-advanced visuals, apply smart design, use dynamic slicers/filters & new cards, choose the right chart, spotlight key insights, brand and theme reports, and seamlessly publish/share in the Service.

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data scientist

Quant Researcher With Very Strong Statistics / Data Analysis / London/ £Base + Bonus - Eka Finance @ jobs-on-efinancialcareers

GB | 2025-12-25
This role involves applying scientific methods and quantitative techniques such as machine learning to develop investment models, with a unique emphasis on attending academic seminars—potentially... read more »
AI/ML, Data Science, Computer Science, PhD, C, C++, Java, Python
data scientist

Data Science Manager @ deliveroo

GB | 2025-12-23
The role seeks a data science manager to lead a team of data scientists, emphasizing strategic direction, team development, and cross-functional collaboration. The position requires experience in... read more »
Data Science, AI/ML, Management, DataViz, Analytics, C
data scientist

Head of Data & AI @ lgcgroup

GB | 2025-12-22
Head of Data & AI at LGC promises a seat at the strategy table, but not a fluffier one. The role is a true senior-leadership job: drive remediation of critical data across commercial, financial,... read more »
Management, AI/ML, Data Governance, Analytics, Data Engineering, Data Quality, Computer Science, Data Science, C, Data Modelling, Cloud Computing, AWS, Azure