384 Data Scientists jobs in London

Overview

Areti is seeking

five Senior Data Scientists/Analysts

to join one of the

UK’s fastest-growing Series A-funded tech startups

based in

London . This is an exciting opportunity to be part of a dynamic, mission-driven company working on high-impact Defence and Government projects.

Extensive training provided

– including

Palantir

– making this a

career-defining role .nResponsibilities

Develop and deploy machine learning modelsnSolve complex data problems in a big data environmentnBuild scalable data pipelines and APIsnQualifications

Previous experience as a

Data Scientist or Data EngineernStrong command of

Python

(including libraries such as scikit-learn, NumPy, matplotlib)nExperience in

deep learning

frameworks such as

TensorFlow

or

PyTorchnKnowledge of

SQL

and relational databases; experience with

Big Data

environmentsnFamiliarity with

API development

and

NoSQL

databasesnUnderstanding of

CI/CD practices ,

AWS , and

GITnBackground in working to strict

project deadlinesnPalantir

experience is a bonus – full training will be provided if notnMust have

active SC or DV clearancenExperience working on

MOD, National Security, Defence , or

Government

projects is essentialnAdditional Information

Location:

Central London (must be willing to travel to office as required)nClearance Required:

SC or DV ClearancenType:

Full-time, PermanentnStart Date:

ASAPnCandidates must have security clearance - Ideally DVnMy client has just received a huge investment and is now in the position where they are looking to scale and expand their Data team.nMy client is interviewing this week so get in contact today to avoid disappointment.nAreti Group – Carbon positive tech recruitment | We’re on a mission to put people and the planet before profit, leaving the world in a better place than we found it.

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UK CITIZENSHIP REQUIRED FOR THIS POSITION: Yes
RELOCATION ASSISTANCE: Relocation assistance may be available
CLEARANCE TYPE: UK-Highest Level of Government Clearance
TRAVEL: Yes, 10% of the Time
**Salary: £77,400 - £116,000**
**Define Possible at Northrop Grumman UK**
At Northrop Grumman UK, our mission is to solve the most complex challenges by shaping the technology and solutions of tomorrow. We call it Defining Possible.
This mind-set goes beyond our customer solutions; it's the foundation for your career development and the impact we have within the community. So, what's your possible?
**Opportunity:**
This is more than just a job; it's a mission.
As a Big Data Systems Engineer, you will be responsible for designing, implementing, and maintaining scalable big data systems that support our data science, machine learning, and AI workloads. You will work closely with cross-functional teams to ensure seamless data integration, security, and compliance with GDPR and privacy regulations. Your expertise in scripting, troubleshooting, and integration testing will be essential in optimizing our data pipelines and orchestration processes.
Our UK Cyber & Intelligence business combines modern software development approaches with a rich heritage and experience in the Defence and security sectors. Our customers have complex and sensitive data and information requirements requiring a mission partner who quickly understands the context, delivering and sustaining a portfolio of challenging technology projects at scale and pace, supporting them through an ambitious digital transformation programme.
If you are looking for a career with meaning where you can make a difference to the nation's security and support critical missions, then look no further.
_"My purpose; to lead a team of engineers with the brightest minds, to push the boundaries and define possible together."_
**Role responsibilities:**
+ Scripting and Automation: Develop and maintain scripts for automating data processes and workflows.
+ Troubleshooting: Diagnose and resolve technical issues related to big data systems, data pipelines, and integrations.
+ Integration Testing: Conduct thorough testing to ensure seamless integration of new tools and technologies into existing systems.
+ Linux Internals: Utilize in-depth knowledge of Linux internals to optimize performance and reliability of big data infrastructure.
+ Network Protocols: Apply understanding of TCP/IP and OSI models in the design and troubleshooting of networked systems.
+ Data Pipeline Support: Manage and optimize data pipelines and orchestration tools such as NiFi and Airflow.
+ Scalable System Design: Design scalable big data systems with a focus on security, GDPR compliance, and privacy
+ Hybrid Cloud Management: Leverage hybrid cloud experience to manage on-premise and AWS cloud resources effectively
+ Data Science Support: Support data science, machine learning, and AI workloads using tools like Jupyter, Spacy, Transformers, and NLTK.
+ Big Data Platforms: Utilize big data NoSQL engines and platforms such as Hive, Impala, and Elasticsearch for data storage and processing
+ BI and Visualization: Implement and support business intelligence and visualization tools like Tableau, Kibana, and PowerBI to provide actionable insights.
**We are looking for:**
+ Strong troubleshooting skills and the ability to diagnose and resolve complex technical issues.
+ Experience with integration testing and ensuring seamless tool integration.
+ In-depth knowledge of Linux internals and system administration.
+ Understanding of TCP/IP and OSI models.
+ Hands-on experience with data pipeline tools like NiFi and Airflow.
+ Proven ability to design scalable big data systems with a focus on security and GDPR compliance.
+ Hybrid cloud experience, specifically with on-premise and AWS cloud environments.
+ Familiarity with data science, machine learning, and AI tools such as Jupyter, Spacy, Transformers, and NLTK.
+ Experience with big data NoSQL engines/platforms such as Hive, Impala, and Elasticsearch.
+ Proficiency with business intelligence and visualization tools like Tableau, Kibana, and PowerBI.
+ Excellent communication and collaboration skills.
Preferred Qualifications:
+ Certification in AWS or other cloud platforms.
+ Experience with additional data orchestration tools.
+ Familiarity with other big data tools and technologies.
+ Previous experience in a similar role within a dynamic and fast-paced environment.
Experience in Cloudera, Hadoop, Cloudera Data Science Workbench (CDSW), Cloudera Machine Learning (CML) would be highly desirable.
**Work Environment:**
+ Full time on-site presence required
**If you don't meet every single requirement, we still encourage you to apply.**
Sometimes, people hesitate to apply because they can't tick every box. We encourage you to apply if you believe the role will suit you well, even if you don't meet all the criteria. You might be exactly who we are looking for, either for this position or for our opportunities at Northrop Grumman UK. We are on an exciting growth trajectory and growing our teams across the UK.
**Security clearance:**
You must hold the highest level of UK Government security clearance. Our requirement team is on hand to answer any questions and we will guide you through the process: .
**Benefits:**
We can offer you a range of flexible working options to suit you, including optional compressed working schedule with every other Friday off. Our benefits including private health care, cash health plan, holiday buy and sell, career development opportunities and performance bonuses. For a comprehensive list of benefits, speak to our recruitment team.
**Why join us?**
+ **A mission to believe in** **-** Every day we contribute to building a more secure and connected world, expanding our reach from land, sea, and air to space and cyberspace. From engineering data and intelligence solutions, to developing maritime navigation and control systems and innovating command and control systems for the UK and NATO, what we do together matters.
+ **A place to belong and thrive** **-** Every voice matters at our table meaning you can bring your authentic self to work. From our Employee Resource Groups backed by thousands of employees to our partnerships with the Association For Black and Minority Ethnic Engineers, Forces Transition Group, Mind, and Women in Defence - we are passionate about growing and supporting our inclusive community where everyone can belong.
+ **Your career, your way** - Shape your career journey with diverse roles, mentorship, and development opportunities that fuel your curiosity, channel your expertise, and nurture your passion. Looking for flexibility? Balance your professional career with your personal life through our health and wellbeing benefits, discount schemes, and investment in your future development. Speak to our team to find the balance that's right for you.
**Ready to apply?**
**Yes** - Submit your application online. Your application will be reviewed by our team and we will be in touch.
**Possibly, I'd like to find out more** **about this role** - Reach out to our team for more information and support: .
**No, I don't think this role is right for me** - Our extensive UK growth means we have exciting, new opportunities opening all the time. Speak to our team to discuss your career goals.
Northrop Grumman is committed to hiring and retaining a diverse workforce, and encourages individuals from all backgrounds and all abilities to apply and consider becoming a part of our diverse and inclusive workforce.

**The team you'll be working with:**
We are seeking a highly experienced and visionary Data Solutions Architect (Modern Big Data) to join our Data & AI practice. The successful candidate will bring extensive expertise in architecting and delivering modern big data platforms that are scalable, reliable, and business-aligned. This role is pivotal in enabling clients to harness the power of streaming data, data lakes, lakehouses, and advanced analytics platforms, while guiding them on their data modernisation journeys.
As a trusted advisor, you will collaborate with executives, stakeholders, and technical teams to define modern big data strategies, design cloud-native architectures, and implement industry-leading best practices. You will thrive in a fast-paced, evolving technology environment, continuously expanding your knowledge to ensure NTT DATA and our clients remain leaders in data-driven innovation.
**What you'll be doing:**
**Primary Responsibilities:**
+ Client Engagement & Delivery
+ Solution Design & Implementation
+ Modernisation & Transformation
+ Thought Leadership & Knowledge Sharing
+ Collaboration & Leadership
**Business Relationships:**
+ Client Partners
+ Practice Leaders and Members
+ Peer-level relationships within client organisations up to Head of Data Engineering, Chief Data Architect, CIO, and CDO level
**What experience you'll bring:**
**Must-Have Competencies:**
+ 8+ years data architecture experience - Enterprise-scale solutions across multiple sectors with proven delivery track record
+ Technical leadership at scale - Leading 15+ person cross-functional teams and serving as technical escalation point for C-level stakeholders
+ Full data lifecycle mastery - End-to-end expertise from ingestion to consumption, including governance, security, and both batch/real-time processing
+ Business-technology translation - Ability to align data strategy with business objectives and communicate across all stakeholder levels
+ Databricks platform expertise - Deep hands-on experience with Databricks Lakehouse architecture, Delta Lake, Unity Catalog, and multi-cloud implementations
**Must be eligible for SC clearance**
**Nice to Have:**
+ Cloud-native architecture expertise - Hands-on experience with AWS/Azure/GCP, data lakes, real-time streaming, and infrastructure-as-code
+ Presales & business development experience - Track record supporting opportunity qualification, bid reviews, proposal development, and client-facing sales activities
+ Data governance & compliance - Strong background in security frameworks, regulatory compliance (GDPR), data lineage, and quality management
+ AI/ML integration capabilities - Experience with MLOps, analytics platforms, and integrating AI/ML into data architectures
+ Agile delivery & thought leadership - Proven agile/hybrid delivery experience with contribution to practice growth through proposition development and knowledge sharing
**Experience, Qualifications:**
+ Experience: Minimum 8-12 years in data architecture, engineering, or consulting, with at least 4+ years in modern big data solution architecture.
+ Education: University degree required.
+ Preferred: BSc/MSc in Computer Science, Data Engineering, or related field.
+ Relevant certifications in Databricks, Kafka, or cloud platforms highly desirable.
**Who we are:**
We're a business with a global reach that empowers local teams, and we undertake hugely exciting work that is genuinely changing the world. Our advanced portfolio of consulting, applications, business process, cloud, and infrastructure services will allow you to achieve great things by working with brilliant colleagues, and clients, on exciting projects.
Our inclusive work environment prioritises mutual respect, accountability, and continuous learning for all our people. This approach fosters collaboration, well-being, growth, and agility, leading to a more diverse, innovative, and competitive organisation. We are also proud to share that we have a range of Inclusion Networks such as: the Women's Business Network, Cultural and Ethnicity Network, LGBTQ+ & Allies Network, Neurodiversity Network and the Parent Network.
For more information on Diversity, Equity and Inclusion please click here: Creating Inclusion Together at NTT DATA UK | NTT DATA ( we'll offer you:**
We offer a range of tailored benefits that support your physical, emotional, and financial wellbeing. Our Learning and Development team ensure that there are continuous growth and development opportunities for our people. We also offer the opportunity to have flexible work options.
You can find more information about NTT DATA UK & Ireland here: are an equal opportunities employer. We believe in the fair treatment of all our employees and commit to promoting equity and diversity in our employment practices. We are also a proud Disability Confident Committed Employer - we are committed to creating a diverse and inclusive workforce. We actively collaborate with individuals who have disabilities and long-term health conditions which have an effect on their ability to do normal daily activities, ensuring that barriers are eliminated when it comes to employment opportunities. In line with our commitment, we guarantee an interview to applicants who declare to us, during the application process, that they have a disability and meet the minimum requirements for the role. If you require any reasonable adjustments during the recruitment process, please let us know. Join us in building a truly diverse and empowered team.
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Short title

Build creative social media conceptsnYour application

Ready to turn your expertise into impact?nIf you’re looking to lead with data, guide high-level strategy, and help shape a future where insights drive everything—we’d love to hear from you.

Apply now and let’s build smarter campaigns, together.nIntroduction

We are seeking a

Senior Data Analyst

who goes beyond reporting and designing metrics, engineering insights, and building proprietary models. If you are passionate about data exploration, modeling, and social intelligence, we would love to hear from you.nYour tasks

You lead performance analysis across social, influencer, and paid media, delivering strategic recommendationsnYou oversee social listening, competitor benchmarking, and market analysis to refine insightsnYou apply data science methods and collaborate across teams to develop predictive models and data-driven product narrativesnYou analyze social API data and build benchmarks across platforms, countries, content types, and creator tiers to deliver actionable insights and contextual intelligencenYou design and refine the Social Media Value (SMV) metric, integrating multiple data sources into one monetary valuenYou mentor junior analysts, promoting analytical rigor, creativity, and strategic thinkingnYour skills

You have 4-6 years of experience as a Data Analyst or hybrid Analyst/Scientist in digital strategy, social tech, marketing analytics, or agency settingsnYou possess expert knowledge in social analytics, data visualization, and forecasting tools like GWI, Pulsar, and Looker StudionYou are capable of designing scoring models, developing KPIs, and generating predictive insights, while translating technical results into strategic value for global clientsnYou understand social media platform (TikTok, Instagram, YouTube) dynamics and influencer/creator marketing metrics deeplynYou are skilled at working with unstructured API data, turning it into scalable, insightful frameworksnYou demonstrate strong leadership and mentorship skills and you’re fluent in English, any additional language is a plus

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Data Analyst Course Programme Job Guarantee Included Complete online training designed to take you from zero experience to your first data analyst role. Study part-time, build fundamental skills, and get dedicated job placement support until you're hired. Flexible financing options available, with payment plans starting from as low as 142 per month. The Programme Complete this 10-week online training with just 10-15 hours per week of study time. You'll learn industry-standard tools, including Excel, SQL, Python, and Power BI, while building a professional portfolio with workplace projects. The programme includes earning BCS and CompTIA certifications recognised by UK employers, expert tutor support throughout your studies, and dedicated job placement support with CV help, interview preparation, and direct employer introductions. The Outcome 93% of graduates secure data analyst roles within 3 months. Starting salaries: 28,000 38,000 Who This Is For The programme is completely beginner friendly, so no experience needed. Career changers are welcome, and you can study at your own pace. *This programme is available to UK-based learners only. Ready to start earning in data? Limited spaces available. Apply now for the next available cohort.

Data Analyst Course Programme Job Guarantee Included Complete online training designed to take you from zero experience to your first data analyst role. Study part-time, build fundamental skills, and get dedicated job placement support until you're hired. Flexible financing options available, with payment plans starting from as low as 142 per month. The Programme Complete this 10-week online training with just 10-15 hours per week of study time. You'll learn industry-standard tools, including Excel, SQL, Python, and Power BI, while building a professional portfolio with workplace projects. The programme includes earning BCS and CompTIA certifications recognised by UK employers, expert tutor support throughout your studies, and dedicated job placement support with CV help, interview preparation, and direct employer introductions. The Outcome 93% of graduates secure data analyst roles within 3 months. Starting salaries: 28,000 38,000 Who This Is For The programme is completely beginner friendly, so no experience needed. Career changers are welcome, and you can study at your own pace. *This programme is available to UK-based learners only. Ready to start earning in data? Limited spaces available. Apply now for the next available cohort.

Data Analyst Course Programme Job Guarantee Included Complete online training designed to take you from zero experience to your first data analyst role. Study part-time, build fundamental skills, and get dedicated job placement support until you're hired. Flexible financing options available, with payment plans starting from as low as 142 per month. The Programme Complete this 10-week online training with just 10-15 hours per week of study time. You'll learn industry-standard tools, including Excel, SQL, Python, and Power BI, while building a professional portfolio with workplace projects. The programme includes earning BCS and CompTIA certifications recognised by UK employers, expert tutor support throughout your studies, and dedicated job placement support with CV help, interview preparation, and direct employer introductions. The Outcome 93% of graduates secure data analyst roles within 3 months. Starting salaries: 28,000 38,000 Who This Is For The programme is completely beginner friendly, so no experience needed. Career changers are welcome, and you can study at your own pace. *This programme is available to UK-based learners only. Ready to start earning in data? Limited spaces available. Apply now for the next available cohort.

Data Analyst Course Programme Job Guarantee Included Complete online training designed to take you from zero experience to your first data analyst role. Study part-time, build fundamental skills, and get dedicated job placement support until you're hired. Flexible financing options available, with payment plans starting from as low as 142 per month. The Programme Complete this 10-week online training with just 10-15 hours per week of study time. You'll learn industry-standard tools, including Excel, SQL, Python, and Power BI, while building a professional portfolio with workplace projects. The programme includes earning BCS and CompTIA certifications recognised by UK employers, expert tutor support throughout your studies, and dedicated job placement support with CV help, interview preparation, and direct employer introductions. The Outcome 93% of graduates secure data analyst roles within 3 months. Starting salaries: 28,000 38,000 Who This Is For The programme is completely beginner friendly, so no experience needed. Career changers are welcome, and you can study at your own pace. *This programme is available to UK-based learners only. Ready to start earning in data? Limited spaces available. Apply now for the next available cohort.

Data Analyst Course Programme Job Guarantee Included Complete online training designed to take you from zero experience to your first data analyst role. Study part-time, build fundamental skills, and get dedicated job placement support until you're hired. Flexible financing options available, with payment plans starting from as low as 142 per month. The Programme Complete this 10-week online training with just 10-15 hours per week of study time. You'll learn industry-standard tools, including Excel, SQL, Python, and Power BI, while building a professional portfolio with workplace projects. The programme includes earning BCS and CompTIA certifications recognised by UK employers, expert tutor support throughout your studies, and dedicated job placement support with CV help, interview preparation, and direct employer introductions. The Outcome 93% of graduates secure data analyst roles within 3 months. Starting salaries: 28,000 38,000 Who This Is For The programme is completely beginner friendly, so no experience needed. Career changers are welcome, and you can study at your own pace. *This programme is available to UK-based learners only. Ready to start earning in data? Limited spaces available. Apply now for the next available cohort.