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Senior Software Engineer, Machine Learning

$170,000-$215,000 + bonus & benefits

Remote – U.S., UK, or Canada

About the Company

• We’re a remote-first product and engineering organization building AI-powered tools that fundamentally improve how people think together, explore ideas, and make decisions. Our focus is on augmenting human creativity and collaboration – not replacing it – by embedding intelligent systems directly into real workflows used by teams every day.
• We operate at the intersection of applied machine learning, thoughtful product design, and scalable systems, with a strong emphasis on shipping production AI that delivers real value. The team is globally distributed, highly collaborative, and driven by curiosity, ownership, and impact.

About the Role

• We’re hiring a Senior Machine Learning Engineer to build intelligent systems that power creative thinking, collaboration, and decision-making at scale.
• This role sits at the intersection of applied ML, product innovation, and scalable infrastructure. You’ll design and ship production ML systems – from retrieval-augmented generation to generative features – working closely with product, design, and engineering in a high-ownership environment.

What You’ll Do

• Design, build, and productionize ML models for generative AI, fine-tuning, and RAG
• Build scalable data pipelines for training, evaluation, and continuous improvement
• Develop annotation and human-in-the-loop workflows to improve model quality
• Partner with product engineers to deliver impactful, user-facing AI features
• Collaborate with infrastructure teams on training, inference, monitoring, and deployment
• Explore new ideas and help shape the long-term AI vision

What You Bring

• 5+ years of industry experience building and shipping deep learning systems
• Strong Python skills and experience with PyTorch or TensorFlow
• Familiarity with modern ML toolchains (hosted APIs, open-source frameworks, or custom stacks)
• Experience with embedding-based systems for retrieval, ranking, or multimodal models
• Comfort mentoring others and raising the technical bar

Nice to Have

• MLOps and ML infrastructure experience (observability, CI/CD, automation)
• Experience working on creative, design, or collaboration-focused ML products

Why Join

• Build AI that amplifies human creativity rather than replacing it
• Own production ML systems used by teams every day
• High autonomy and influence in a cross-functional environment
• Remote-first culture with strong engineering and product collaboration
• Competitive compensation and meaningful growth opportunities

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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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PRINCIPAL DATA ENGINEER

£80,000 + BENEFITS

LEEDS (Hybrid)

Looking for a role where you can truly influence how data engineering is done-while still getting stuck into the tech yourself?

THE COMPANY:

I’m working with a central data function in the financial services industry that’s undergoing a full modernisation of their data platform. They’ve got technically advanced teams across the wider business and are now building out a core engineering team to unify, elevate and support that community.

THE ROLE:

It’s a strategic, hands-on role where you’ll work closely with DevOps, Product, and business partners to unlock the value of data through modern, secure and governed pipelines.

• Lead hands-on development work using Azure, Databricks, and Terraform (IaC)
• Support the migration from legacy platforms to a more modern cloud stack
• Act as a mentor and technical guide to the wider engineering team
• Implement data governance requirements
• Collaborate with non-technical stakeholders to ensure delivery aligns to business needs
• Stay close to the ML lifecycle

YOUR SKILLS AND EXPERIENCE:

A successful Principal Data Engineer will have the following skills and experience:

• Strong hands-on experience with Azure
• Proficient in Databricks
• Skilled in Terraform and Infrastructure as Code practices
• Exposure to containers/Kubernetes
• Awareness of ML Ops concepts

THE BENEFITS:

You will receive a salary, dependent on experience. Salary is up to £80,000 On top of the salary there are some fantastic extra benefits.

HOW TO APPLY

Please register your interest by sending your CV to Molly Bird via the apply link on this page.

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Senior Data Strategist

Bristol | £50,000-£60,000

This is an exciting opportunity to shape data‑driven CRM strategy for a variety of well‑known consumer brands. You’ll join a collaborative, fast‑moving environment where insight, creativity, and customer experience come together to drive real commercial impact.

The Company

They are a specialist customer and data‑focused agency with a long-standing reputation in CRM and lifecycle marketing. With new investment and growing international demand, they are expanding their strategic team. Their culture is friendly, tight‑knit, and built around delivering thoughtful, insight-led work for a diverse client base.

The Role

As Senior Data Strategist, you will help clients understand their customer data and turn insights into effective CRM strategies. Your work will span multiple sectors and customer programmes.
You will:

• Develop data‑led CRM and lifecycle strategies across multiple accounts.
• Turn analysis into clear frameworks, recommendations, and engaging stories.
• Collaborate closely with data teams to translate insight into action.
• Design or refine customer journeys across core CRM channels.
• Review tech stacks and processes to support better customer experiences.
• Build compelling strategy decks for senior stakeholders.
• Mentor junior strategists and contribute to the team’s overall capability.

Your Skills & Experience

You will have:

• Experience in a CRM, customer strategy, or data‑driven marketing role.
• A strong understanding of how to turn insights into commercial outcomes.
• Experience presenting to clients or senior stakeholders.
• Confidence working with analytics teams to identify opportunities.
• Familiarity with CRM or customer engagement platforms (experience with leading tools is beneficial).
• Experience with analytics or visualisation tools such as Tableau, Adobe Analytics, or similar.
• Strong communication skills and an ability to simplify complexity.

What They Offer

• £50,000-£60,000 depending on experience.
• Bristol office presence three days per week, or London-based with regular travel.
• Exposure to a broad client portfolio and varied strategic challenges.
• The chance to play a key role in a growing team with global opportunities.
• A supportive, collaborative environment where you can stretch your strategic skills.

How to Apply

If you’re a data‑driven CRM strategist ready to take on broader, more strategic work, apply now with your CV.

To Apply for this Job Click Here

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Senior Data Strategist

London – £50,000-£60,000

This is an exciting opportunity to shape data‑driven CRM strategy for a variety of well‑known consumer brands. You’ll join a collaborative, fast‑moving environment where insight, creativity, and customer experience come together to drive real commercial impact.

The Company

They are a specialist customer and data‑focused agency with a long-standing reputation in CRM and lifecycle marketing. With new investment and growing international demand, they are expanding their strategic team. Their culture is friendly, tight‑knit, and built around delivering thoughtful, insight-led work for a diverse client base.

The Role

As Senior Data Strategist, you will help clients understand their customer data and turn insights into effective CRM strategies. Your work will span multiple sectors and customer programmes.
You will:

• Develop data‑led CRM and lifecycle strategies across multiple accounts.
• Turn analysis into clear frameworks, recommendations, and engaging stories.
• Collaborate closely with data teams to translate insight into action.
• Design or refine customer journeys across core CRM channels.
• Review tech stacks and processes to support better customer experiences.
• Build compelling strategy decks for senior stakeholders.
• Mentor junior strategists and contribute to the team’s overall capability.

Your Skills & Experience

You will have:

• Experience in a CRM, customer strategy, or data‑driven marketing role.
• A strong understanding of how to turn insights into commercial outcomes.
• Experience presenting to clients or senior stakeholders.
• Confidence working with analytics teams to identify opportunities.
• Familiarity with CRM or customer engagement platforms (experience with leading tools is beneficial).
• Experience with analytics or visualisation tools such as Tableau, Adobe Analytics, or similar.
• Strong communication skills and an ability to simplify complexity.

What They Offer

• £50,000-£60,000 depending on experience.
• Bristol office presence three days per week, or London-based with regular travel.
• Exposure to a broad client portfolio and varied strategic challenges.
• The chance to play a key role in a growing team with global opportunities.
• A supportive, collaborative environment where you can stretch your strategic skills.

How to Apply

If you’re a data‑driven CRM strategist ready to take on broader, more strategic work, apply now with your CV.

To Apply for this Job Click Here

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Enterprise Data Architect

Location: New York City (Hybrid – 3 days onsite)
Secondary: Chicago (Hybrid)
Salary: Up to $200,000 + bonus
Sponsorship: Not available

Harnham is exclusively supporting a world-class global organisation in the search for an Enterprise Data Architect to design and deliver its next-generation data platform.

This is a career-defining opportunity for someone who wants to architect an enterprise data foundation from the ground up and play a central role in how analytics and AI are applied across a complex, global business.

The Role

You’ll lead the design and implementation of a modern Data Lakehouse architecture, taking the organisation from proof-of-concept to a scalable enterprise platform. You’ll work directly with senior leadership and partner closely with DevOps, platform, and business teams to define the long-term data strategy.

What You’ll Be Doing

• Architecting and building Databricks infrastructure on AWS

• Designing enterprise lakehouse architecture (Databricks + Snowflake)

• Defining how data moves across systems and platforms

• Establishing architectural standards, governance, and cost optimisation

• Partnering with senior stakeholders across technology and the business

• Laying the foundation for analytics, AI, and ML at enterprise scale

What We’re Looking For

• 10+ years’ experience in data architecture or enterprise data roles

• Deep hands-on experience with Databricks (essential)

• Strong background in AWS and Snowflake

• Proven experience building platforms from scratch

• Comfortable operating independently in lean teams

• Strong business and stakeholder communication skills

Why Apply?

• Own and shape an enterprise data platform from day one

• Direct exposure to senior leadership and strategic initiatives

• Work that leaves a lasting, real-world legacy

• Join a best-in-class global organisation at a pivotal moment

Apply through Harnham to discuss this confidential opportunity in more detail.

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Senior CRM Manager
Central London (Hybrid – 3 days in office)
Up to £65,000

A fast-growing digital growth agency is looking for a Senior CRM Manager to lead strategy-led CRM programmes for high-profile UK brands.

This is a client-facing role combining insight, planning, and hands-on delivery. You’ll own CRM projects end to end across multiple clients, act as a trusted advisor to senior stakeholders, and guide junior team members along the way.

What you’ll be doing:

• Developing multi-channel CRM strategies (email, push, SMS)

• Owning segmentation, journeys, and performance optimisation

• Turning data into clear, actionable insights

• Advising clients on CRM best practice and martech

• Presenting confidently to senior client stakeholders

What we’re looking for:

• ~5 years’ CRM experience (agency experience a bonus)

• Strong strategic mindset (not just execution)

• Confident, credible, client-facing communicator

• Comfortable working across multiple clients and industries

Immediate availability is a plus, but flexibility for the right person.

Find out more and apply via the link below.

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Job Title: Product Data Scientist – Hybrid – Up to £80,000

Location: London (Hybrid, 2 days p/w in office)

Salary: Up to £80,000 + benefits

Contract: Permanent

The Company

A well-established and fast-growing organisation going through an exciting period of digital transformation. With a strong customer focus, they use data and technology to deliver meaningful products and services to a wide audience. The business is scaling its data capabilities and is investing heavily in analytics to drive smarter decisions and long-term growth.

The Role

As a Product Data Scientist, you’ll work closely with teams across the business to unlock insight, guide product strategy, and influence decision-making. You’ll use advanced analytics, experimentation, and data storytelling to identify opportunities, improve customer experiences, and drive measurable impact.

Key Responsibilities:

• Analyse user behaviour to uncover insights, identify pain points, and influence product direction.

• Design experiments and support a culture of testing, learning, and iteration.

• Define and align key business metrics, ensuring consistency and accuracy across teams.

• Build and maintain dashboards and tools to empower stakeholders with self-serve insights.

• Conduct deep-dive analyses to support strategic initiatives and provide clear recommendations.

• Collaborate across functions to close data gaps and drive analytics best practice.

• Stay current on industry trends and champion innovative approaches to product data science.

The Candidate

• Proven experience in analytical roles, ideally within a digital-first or tech-led business.

• Skilled in SQL, Python or R, plus familiarity with BI tools (e.g. Looker, Tableau, Lightdash).

• Ability to translate business challenges into clear analytical projects and recommendations.

• Strong data storytelling and presentation skills, with confidence engaging senior stakeholders.

• Curious, proactive, and detail-oriented problem solver.

• Team player with strong collaboration skills.

What’s on Offer

• Salary up to £80,000 + bonus

• Hybrid working (2 days per week in London office)

• Competitive annual leave package

• Pension scheme and healthcare support

• Employee discounts and perks

• Regular team socials and recognition initiatives

• Strong learning and development opportunities

Apply Now
If you’re an experienced Product Data Scientist/Analyst looking to shape the future of data insight in a growing, forward-thinking organisation, apply today.

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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

1. Initial interview (30-45 mins) – with Analytics Leadership

2. Task stage – demonstrate analytical thinking and communication

3. 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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CRM Executive – Adobe Campaign
Location: West London (Hybrid, 2-3 days in office)
Salary: Up to £35,000

We’re looking for a talented CRM Executive with experience in Adobe Campaign to join a leading global digital transformation team. This is a hybrid role with a supportive, collaborative environment working with some of the world’s most recognizable brands.

What you’ll do:

• Execute end-to-end CRM campaigns across multiple channels.

• Support CRM transformation initiatives and system integrations.

• Analyse campaign performance and optimise engagement through data insights.

• Ensure campaign setup quality and alignment with business goals.

• Collaborate across teams and support adoption of CRM tools through training and change management.

What we’re looking for:

• 2+ years of CRM experience, with Adobe Campaign expertise.

• Strong degree/university background.

• Comfortable working in fast-paced, client-focused environments.

• Open to candidates from varied professional backgrounds.

Why join us:

• Be part of a 250-strong global digital transformation team.

• Work with clients like William Hill, EasyJet, McDonalds, and more.

• Collaborate with a passionate, innovative MarTech team.

The process:

1. Initial 30-min Teams interview

2. 17-min online task

3. 45-min Teams interview with the line manager

4. Final face-to-face meeting in the office

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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

• Manage large-scale B2C campaigns across 80+ brands

• 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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