Data Scientist – Client facing
Amsterdam / €70000 - €71000 annum
INFO
€70000 - €71000
LOCATION
Amsterdam
Permanent
Job Title: Client-Facing Data Scientist (Marketing & Market Mix Modelling)
Location: Netherlands / Belgium / Hybrid
Language Requirement: Fluent Dutch & English
About the Role
The company is seeking a Dutch-speaking, client-facing Data Scientist to join its growing analytics team. This role focuses on delivering data-driven insights for commercial and marketing stakeholders, with a strong emphasis on marketing analytics and Market Mix Modelling (MMM).
The successful candidate will act as a trusted advisor to clients, translating complex analytical outputs into clear, actionable recommendations that inform marketing strategy, budget allocation, and overall business performance.
Key Responsibilities
Develop, maintain, and improve Market Mix Models to measure marketing effectiveness across channels
Work directly with clients to understand business challenges and define analytical approaches
Translate model results into clear insights and recommendations for non-technical stakeholders
Present findings to marketing teams, commercial leaders, and senior stakeholders
Analyse marketing data including media spend, sales, pricing, promotions, and external factors
Collaborate with internal data science, engineering, and consulting teams
Support scenario planning, forecasting, and optimisation of marketing budgets
Required Skills & Experience
Strong academic or professional background in data science, statistics, econometrics, or a related field
Proven experience in Market Mix Modelling or advanced marketing analytics
Proficiency in Python and/or R (SQL experience is an advantage)
Solid understanding of marketing channels (digital and offline)
Ability to communicate complex analytical concepts clearly and confidently
Fluent Dutch, both written and spoken, with professional-level English
Experience in a client-facing or stakeholder-facing role
Nice to Have
Experience in consulting, analytics advisory, or agency environments
Knowledge of causal inference, time-series modelling, or Bayesian approaches
Experience with data visualisation tools such as Tableau or Power BI
Experience working with large and complex marketing datasets
What the Company Offers
Exposure to high-impact marketing and commercial projects
Regular interaction with senior client stakeholders
A collaborative, analytics-led working environment
Competitive salary and benefits
Flexible and hybrid working arrangements
CONTACT
Charlotte York
Managing Consultant ? Netherlands
SIMILAR
JOB RESULTS
Director of ERP Transformation
Dallas
$230000 - $300000
+ Data Engineering
PermanentDallas, Texas
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Director / Head of ERP Transformation
Compensation 230,000-300,000 + Equity
On-Site Dallas, TX
You’ll partner closely with Finance, Accounting, Procurement, and Operations to modernize systems, reduce manual work, and deliver a scalable, automated operating model.
What You’ll Do
- Lead an enterprise-wide ERP transformation aligned to business strategy
- Drive selection and rollout of a next-generation ERP platform (finance-only through full ERP)
- Define future-state, digital processes leveraging automation, analytics, AI, and RPA
- Standardize processes using out-of-the-box ERP capabilities
- Lead cross-functional teams and external partners
- Own change management, adoption, governance, and risk mitigation
What You Bring
- 10-15+ years of ERP leadership experience
- Proven ownership of large-scale, multi-year ERP programs
- Strong background in finance-led ERP transformations
- Experience managing cross-functional teams and system integrators
- Excellent executive communication and stakeholder management
- Ability to translate business needs into technology-enabled solutions
Why Join
- Lead a mission-critical ERP transformation with global impact
- High visibility and influence across senior leadership
- Build a modern, automated finance and operations ecosystem
- Own strategy, execution, and long-term value realization

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Lead Data Engineer
San Francisco
$200000 - $200000
+ Data Engineering
PermanentSan Francisco, California
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Senior Data Engineer (Core Platform)
Compensation: ~$200,000 base + equity
Remote
We’re hiring a Senior Data Engineer to own core data infrastructure for an AI-driven financial platform operating on highly complex, real-world data.
This is not an analytics or BI role. You’ll focus on data ingestion, data quality, and pipeline reliability – partnering closely with senior backend engineers to build scalable, production-grade systems in a small, high-ownership team.
What You’ll Do
- Build and maintain robust data ingestion and processing pipelines
- Own data quality across messy, fragmented, high-volume data sources
- Partner with backend engineers to improve platform reliability and scalability
- Solve hard data problems involving accuracy, consistency, and lineage
- Contribute architectural ideas and long-term platform improvements
What You Bring
- 5+ years of data engineering or backend-focused infrastructure experience
- Proven ability to solve complex data quality and pipeline-level problems
- Experience working with real-world, imperfect data at scale
- Cloud experience (platform-agnostic preferred)
- Comfortable with ambiguity and high technical ownership
- Strong bonus: experience with financial, payments, accounting, or other regulated data platforms
Why Join
- Own core data systems where quality directly drives business outcomes
- High autonomy and influence in a small, senior technical team
- Solve genuinely hard, non-toy data problems
- Remote-first culture with periodic team meetups
- Competitive compensation and meaningful equity

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Senior Product Manager (ML)
San Francisco
$230000 - $280000
+ Data Science & AI
PermanentSan Francisco, California
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Senior Product Manager (ML)
Compensation (US): $230,000-$280,000 base + additional benefits
Remote
This role sits at the intersection of research, engineering, and design. You’ll take emerging AI capabilities and shape them into products that deliver real user value, moving quickly from concept to production in a fast-paced environment.
Remote across North America & the UK
(UK-based hires should expect ~5 hours of overlap with US Pacific Time.)
What You’ll Do
- Define new AI-driven product opportunities alongside research teams
- Partner with engineering and design to productize research and iterate on existing tools
- Talk with users regularly, define success metrics, and run experiments (A/B tests, analysis)
- Translate user needs, technical constraints, and business goals into clear product direction
What You Bring
- 3+ years of product management experience, ideally building products from scratch
- Technical fluency (SQL, Python, code-generation tools, version control)
- Familiarity with modern ML capabilities and AI-powered products
- Experience working with fast-moving, highly collaborative teams
- Strong written and verbal communication skills
Why Join
- Shape products built on frontier AI research
- High ownership and influence in an early, market-defining team
- Work closely with world-class research, engineering, and design partners
- Competitive compensation and flexible, remote-friendly culture

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Backend API Software Engineer
San Francisco
$240000 - $290000
+ Data Engineering
PermanentSan Francisco, California
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Backend API Software Engineer
Compensation (US): $240,000-$290,000 base + additional benefits
Remote
- This role is for a curiosity-driven engineer who enjoys owning backend services end-to-end from API design to production reliability in a fast-moving, high-ownership environment.
- Remote across North America & Europe (with optional access to regional offices).
What You’ll Do
- Build and own backend services supporting interactive media and collaboration
- Design, implement, and operate scalable public and internal API
- Implement API security, authentication, rate limiting, and observability
- Improve performance, reliability, and code quality across production systems
- Collaborate closely with product, frontend, and infrastructure teams
What You Bring
- 4+ years of backend software engineering experience
- Strong proficiency in at least one backend language (TypeScript preferred)
- Experience with PostgreSQL or similar relational databases
- Background building production systems on AWS, GCP, or Azure
- Comfort with distributed systems and cloud-native architectures
- Ability to prototype quickly and deliver under tight timelines
Why Join
- Work on cutting-edge AI-driven creation systems at global scale
- High ownership, real impact, and meaningful technical autonomy
- Collaborate with a world-class, distributed engineering team
- Competitive compensation and flexible remote-first culture

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Senior Data Engineer
Chicago
$110000 - $145000
+ Data Engineering
PermanentChicago, Illinois
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Senior Data Engineer
Chicago | Hybrid (3 days onsite)
$145,000 Base + 10% Bonus
Harnham is partnering with a fast-growing, well-capitalized financial services company to hire a Senior Data Engineer into a high-impact, business-facing role. This is an opportunity to join a lean, high-performing data team where engineers have real ownership, visibility, and influence over decision-making.
The company operates in the lending and credit space and has continued to perform strongly in uncertain economic conditions. Data plays a critical role in their growth strategy, particularly across credit analytics, acquisition, and operational reporting.
The Role
As a Senior Data Engineer, you will be responsible for building and maintaining modern data infrastructure while working closely with analytics and business stakeholders. This is not a siloed platform role – you’ll be expected to understand business problems, design clean data models, and clearly communicate insights.
You’ll work in a fast-paced agile environment with short sprint cycles and a strong emphasis on ownership and collaboration.
Key Responsibilities
-
Design, build, and maintain scalable data pipelines and infrastructure in a modern cloud environment
-
Develop advanced SQL models and Python workflows to support analytics and reporting use cases
-
Build and maintain data marts and warehouse layers, including cleaning and consolidating legacy data
-
Partner closely with analytics and business teams to translate business questions into reliable data solutions
-
Support new initiatives involving credit-related data and pipeline migrations
-
Ensure data quality and reliability through testing, monitoring, and best practices
What We’re Looking For
Required:
-
5+ years of experience in data engineering
-
Advanced SQL skills (CTEs, window functions, complex transformations)
-
Strong Python experience
-
Hands-on experience with AWS and Snowflake
-
Strong data modeling experience
-
Excellent communication skills and comfort working with non-technical stakeholders
-
Proven stability and ownership mindset
Nice to Have:
-
Experience with dbt and/or Airflow
-
Background in financial services, fintech, payments, or lending
-
Exposure to credit or transaction-level data
-
Familiarity with monitoring or observability tools
Why Apply?
-
High-visibility role with direct impact on business decisions
-
Modern data stack and meaningful technical ownership
-
Collaborative, low-ego team culture
-
Stable business with strong growth plans
-
Hybrid working model (3 days onsite in Chicago)
If you’re a Senior Data Engineer who enjoys working close to the business and wants to make a tangible impact, we’d love to speak with you.
Apply now or reach out to Harnham for a confidential discussion.

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Data Scientist – Client facing
Amsterdam
€70000 - €71000
+ Data Science & AI
PermanentAmsterdam, North Holland
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Job Title: Client-Facing Data Scientist (Marketing & Market Mix Modelling)
Location: Netherlands / Belgium / Hybrid
Language Requirement: Fluent Dutch & English
About the Role
The company is seeking a Dutch-speaking, client-facing Data Scientist to join its growing analytics team. This role focuses on delivering data-driven insights for commercial and marketing stakeholders, with a strong emphasis on marketing analytics and Market Mix Modelling (MMM).
The successful candidate will act as a trusted advisor to clients, translating complex analytical outputs into clear, actionable recommendations that inform marketing strategy, budget allocation, and overall business performance.
Key Responsibilities
-
Develop, maintain, and improve Market Mix Models to measure marketing effectiveness across channels
-
Work directly with clients to understand business challenges and define analytical approaches
-
Translate model results into clear insights and recommendations for non-technical stakeholders
-
Present findings to marketing teams, commercial leaders, and senior stakeholders
-
Analyse marketing data including media spend, sales, pricing, promotions, and external factors
-
Collaborate with internal data science, engineering, and consulting teams
-
Support scenario planning, forecasting, and optimisation of marketing budgets
Required Skills & Experience
-
Strong academic or professional background in data science, statistics, econometrics, or a related field
-
Proven experience in Market Mix Modelling or advanced marketing analytics
-
Proficiency in Python and/or R (SQL experience is an advantage)
-
Solid understanding of marketing channels (digital and offline)
-
Ability to communicate complex analytical concepts clearly and confidently
-
Fluent Dutch, both written and spoken, with professional-level English
-
Experience in a client-facing or stakeholder-facing role
Nice to Have
-
Experience in consulting, analytics advisory, or agency environments
-
Knowledge of causal inference, time-series modelling, or Bayesian approaches
-
Experience with data visualisation tools such as Tableau or Power BI
-
Experience working with large and complex marketing datasets
What the Company Offers
-
Exposure to high-impact marketing and commercial projects
-
Regular interaction with senior client stakeholders
-
A collaborative, analytics-led working environment
-
Competitive salary and benefits
-
Flexible and hybrid working arrangements

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Head of Analytics – 8-month FTC
London
£95000 - £110000
+ Advanced Analytics & Marketing Insights
PermanentLondon
To Apply for this Job Click Here
Interim Head of Analytics
London (Hybrid – 3 days onsite)
£110,000 + 10% bonus + pension (pro rata)
7-9 month FTC (flexible)
A private equity-backed business in the enviromental space is seeking an Interim Head of Analytics to lead the next phase of its data journey.
Following significant investment in its data platform, the organisation is now focused on turning data capability into measurable business value. This role will play a critical part in shaping how analytics is used across the business as it scales.
The Role
Reporting into the CFO, you will lead the analytics function within a growing data team that includes senior data engineering capability. With the foundations now in place, your remit will be to embed analytics into decision-making, influence senior stakeholders and demonstrate what’s possible with data.
You’ll work cross-functionally with teams including Customer Success, Operations and Marketing to deliver insight around customer behaviour, operational performance and growth opportunities.
You’ll also act as a senior sponsor for the organisation’s Power BI rollout, championing adoption and sharing success stories across the business.
Key Responsibilities
-
Own and lead the analytics and BI strategy
-
Translate commercial objectives into clear, actionable insight
-
Build strong relationships with senior stakeholders and improve data literacy
-
Set expectations, prioritise effectively and deliver impact at pace
-
Lead and develop analysts, providing clear direction and support
-
Partner closely with data engineering to shape the analytics roadmap
Tech Environment
-
AWS
-
Snowflake
-
Power BI
-
dbt
About You
-
Proven experience in a Head of Analytics / Analytics Manager / BI Lead role
-
Strong SQL and analytics background (hands-on earlier in career)
-
Commercially astute with excellent communication skills
-
Confident influencing at senior level and managing multiple stakeholders
-
Pragmatic, solutions-focused and comfortable working in an evolving environment
-
Exposure to machine learning concepts is desirable but not essential
Find out more and apply via the link below.

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Senior Data Analyst – Performance Marketing – 8 -month FTC
London
£45000 - £60000
+ Advanced Analytics & Marketing Insights
PermanentLondon
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Senior Data Analyst – 8 Month FTC
Salary: £60,000 pro rata
Location: London (4 days per week in office)
Contract: 8 month fixed-term contract
Working style: Flexible hours, high client exposure
A leading UK creative advertising agency is looking for a Senior Data Analyst to join its Data & Insight team on an 8-month FTC.
This is a highly client-facing role, focused on turning performance marketing and web data into clear, commercially actionable insight for senior stakeholders. You’ll act as a trusted analytical partner to account and strategy teams, with a strong emphasis on storytelling and confident data interpretation.
The Role
-
Deliver post-campaign analysis, performance insight and optimisation recommendations
-
Translate complex datasets into clear commercial narratives
-
Support forecasting, trading and campaign planning activity
-
Attend and present in senior client meetings multiple times per week
-
Provide day-to-day analytical support to account teams
-
Help support and develop junior analysts
Key Requirements
-
Strong Excel skills
-
Proven agency experience
-
Hands-on experience with performance marketing data
-
Confident, engaging communicator comfortable challenging and advising senior clients
-
Experience presenting insight clearly and credibly
Nice to Have
-
Retail, automotive or similarly fast-paced sector experience
Ideal Profile
-
Commercially minded and proactive
-
Not a back-office analyst
-
Comfortable in demanding, senior client environments
-
Strong data storyteller who thrives in a fast-paced agency setting
This role suits someone who enjoys being at the intersection of data, campaigns and clients, rather than purely behind the scenes.
Find out more and apply via the link below

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Research Manager – Analytics
London
£45000 - £60000
+ Advanced Analytics & Marketing Insights
PermanentLondon
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Research Manager, Analytics (4 days in office, Fridays WFH)
Up to £60,000, London
Series A-B B2B Research Tech Startup (~50 people)
We’re partnered with a fast-growing research technology startup using AI to transform how organisations understand people. The business combines advanced analytics with modern research methods to deliver deeper insights, faster and at significantly lower cost than traditional research approaches.
As the company launches a new AI-driven product, they’re hiring a Research Manager to take ownership of analytics and modelling across client research projects.
The Role
This is a hands-on role focused on pushing the boundaries of quantitative analytics within research. You’ll lead complex modelling work, set best practice for analytics, and independently deliver end-to-end research projects.
Key Responsibilities
-
Own analytics workstreams across major research projects
-
Deliver advanced analysis including segmentation, factor reduction and regression modelling
-
Set standards and best practice for analytics and segmentation
-
Automate repeat analytical tasks for trackers and long-running projects
-
Run end-to-end research projects (primarily quant; some qual/mixed methods)
-
Contribute to proposals and RFPs
About You
Essential
-
3+ years’ experience in analytics and/or research using survey data
-
Hands-on experience with regression, factor analysis and segmentation techniques
-
Strong data wrangling, cleaning and weighting skills
-
Proficiency in R or Python for analysis and visualisation
-
Curious, exploratory approach to finding insight in data
Nice to have
-
Experience with Bayesian as well as frequentist methods
-
Understanding of the full market research project lifecycle
Interview Process
-
Screening questions
-
Talent interview
-
Hiring Manager interview
-
In-person task (with opportunity to meet Founder & C-suite)
Find out more and apply via the link below.

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Analytics Manager
London
£75000 - £90000
+ Advanced Analytics & Marketing Insights
PermanentLondon
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Analytics Manager
London (Hybrid – 2 days in office, Tuesdays required)
Up to £90,000 base salary
An established data and analytics provider within the FS and property sector is looking for an Analytics Manager to lead and deliver high-impact client-facing projects. Sitting at the intersection of data, product, and commercial teams, this role offers the opportunity to influence strategic decision-making across some of the UK’s most prominent banks and mortgage lenders.
You’ll manage a small team of analysts while staying close to delivery – combining technical expertise with business insight to shape how financial institutions use housing market data to drive smarter lending decisions.
Key Responsibilities
-
Team Leadership: Mentor and support 2-3 analysts; oversee workload and ensure high-quality output
-
Client-Facing Analytics: Present insights directly to clients, translating complex data into strategic value
-
Cross-Functional Collaboration: Work with product, commercial, and presales teams to develop tailored solutions
-
Strategic Thinking: Stay ahead of market trends and customer challenges to guide analytics direction
-
Project Delivery: Lead the end-to-end delivery of analytics projects across multiple stakeholders and timelines
-
Innovation Support: Help evolve the product set through insight-led thinking across financial services use cases
What We’re Looking For
-
5-7 years’ experience in analytics, ideally within financial services, credit risk, mortgages, or related sectors
-
Proven experience mentoring or managing analysts (or strong readiness to step into a team lead role)
-
Strong technical toolkit: SQL, Python, and Excel proficiency
-
Skilled communicator – confident presenting to both technical and non-technical audiences
-
Experience working with or alongside banks, lenders, or credit decisioning teams
-
Highly numerate, creative problem solver with strong business acumen
Nice to Have
-
Exposure to property, housing, or mortgage markets
-
Experience in a fast-paced, collaborative environment
-
Interest in combining product thinking with data analytics
-
Ability to manage multiple projects and stakeholders
-
Strong presentation skills and a curious, solutions-driven mindset
Why Apply?
-
Strategic, visible role with direct impact on how financial clients use data
-
Competitive salary up to £90,000
-
Hybrid working – 2 days/week in the London office (Tuesdays required)
-
Work within a high-calibre analytics team under supportive leadership
-
Be part of a mission to simplify and modernise property data in financial decisioning
Interview Process
-
Initial interview (30-45 mins) – with Analytics Leadership
-
Task stage – demonstrate analytical thinking and communication
-
Final round – culture fit and stakeholder interaction
One stage may take place in person at the London office (London Bridge), where possible
Ready to shape the future of data in property and financial services? Apply now to join a high-performing team that blends deep analytics with real-world impact.

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Senior Account Manager
Bristol
£32000 - £42000
+ Advanced Analytics & Marketing Insights
PermanentBristol
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Senior Account Manager (x2)
CRM / Data-Led Marketing Agency
Bristol (Hybrid – 3 days in office)
£34,000 – £42,000
We’re partnering with a well-established CRM and data-led marketing agency with around 30 years’ experience delivering work for major UK consumer and financial services brands. Following a recent international acquisition, the agency is continuing to grow and is now hiring two Senior Account Managers to support key client accounts from its Bristol office.
Both roles sit within the same client services team, reporting into Senior Account Directors. The core responsibilities are consistent across both positions, with variation depending on the client portfolio.
The Role
As a Senior Account Manager, you’ll be a day-to-day client contact, working closely with Account Directors to deliver against briefs, manage stakeholders, and keep work moving at pace.
You’ll sit at the heart of delivery – coordinating teams across strategy, creative, and development – while also contributing strategic thinking and identifying opportunities to grow the account.
There are two openings:
Role 1 – Large Consumer Brand (New Account Win)
-
Supporting a Senior Account Director on a recently won, high-profile account
-
Strong delivery focus due to limited project management support
-
Managing a broad range of client stakeholders
-
Exposure to creative, development and strategic work (less campaign-heavy)
-
Opportunity to grow with the account as it scales
Role 2 – Financial Services Brand
-
Supporting an Account Director across a well-established FS account
-
More strategy-led, with a strong focus on CRM execution across email and DM
-
Acting as the consistent day-to-day presence for the client
-
Working closely with internal execution teams to ensure high-quality delivery
Key Responsibilities
-
Act as a main point of contact for clients on day-to-day activity
-
Support Account Directors in delivering CRM and data-led programmes
-
Manage briefs, timelines and internal stakeholders
-
Contribute to CRM and customer strategy discussions
-
Ensure work is delivered to a high standard and on time
-
Build strong, trusted client relationships
-
Identify opportunities to add value within existing accounts
About You
-
Currently a Senior Account Manager, or a strong Account Manager ready to step up
-
Experience in digital, CRM, or data-led marketing (pure CRM experience not essential)
-
Exposure to working with large, well-known brands
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Comfortable in a fast-paced agency environment
-
Organised, proactive and confident with clients
-
Personable and collaborative – someone clients and teams enjoy working with
Location & Package
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Bristol (office is a 5-minute walk from Temple Meads)
-
Hybrid working – 3 days per week in the office
-
Salary range: £34,000 – £42,000
Interview Process
-
Culture-focused screening interview
-
Competency-based interview with senior leadership
-
Task presentation to panel
Find out more and apply via the link below

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Senior Email Marketing Manager
London
£40000 - £50000
+ Advanced Analytics & Marketing Insights
PermanentLondon
To Apply for this Job Click Here
Senior Email Marketing Manager
Up to £50,000 | Hybrid – 3 days a week in London
Are you a hands-on email marketer who loves leading from the front? This is a fantastic opportunity to take ownership of email strategy and delivery across multiple high-profile consumer brands within one of the UK’s leading property groups.
The Opportunity
We’re looking for a Senior Email Marketing Manager to lead a growing team and drive best practice across high-volume, multi-brand campaigns. You’ll play a key role in shaping customer journeys, optimising lifecycle activity and improving performance across every stage of communication.
What You’ll Do
-
Lead and mentor a team of five across email strategy, delivery and optimisation
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Manage large-scale B2C campaigns across 80+ brands
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Oversee lifecycle, triggered and BAU email programmes across multiple platforms (Dotdigital, BriefYourMarket, XMPIE)
-
Drive testing, segmentation and personalisation to improve engagement
-
Report on campaign performance and present insights to senior stakeholders
-
Maintain compliance and GDPR standards across regulated communications
-
Champion continuous improvement and innovation, including automation and AI opportunities
About You
-
Proven experience managing end-to-end email marketing in a fast-paced B2C environment
-
Strong people leadership and mentoring skills
-
Confident working with data and campaign analytics tools (Power BI or similar)
-
Comfortable working across multiple brands and stakeholders
-
Excellent attention to detail and copy accuracy
-
Experience in regulated or compliance-heavy sectors preferred
-
Hands-on and proactive, with a collaborative, in-office leadership style
The Details
-
Salary: Up to £50,000
-
Location: Hybrid – 3 fixed office days (Tues/Weds/Thurs) in London
-
Team: 5 direct reports across senior and junior exec levels
Join a collaborative marketing team driving the next phase of digital and CRM transformation – shaping how millions of customers engage with one of the UK’s most recognisable property brands.
Find out more and apply via the link below.

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