Senior Machine Learning Engineer
New York / $180000 - $220000 annum
INFO
$180000 - $220000
LOCATION
New York
Permanent
Machine Learning Engineer
AI & Cloud Optimization
New York City - Hybrid
$180,000 - $220,000 + Equity & Benefits
We are working with a venture-backed AI startup redefining how companies manage their cloud costs in an era of explosive AI-driven growth. With billions spent annually on cloud infrastructure-often tracked with outdated tools-this company is building intelligent systems that bring clarity, automation, and financial control to cloud spend. Their platform is already trusted by industry leaders and built for scale across AWS, GCP, and Azure.
The Role:
This is a hands-on, senior-level position where you'll drive AI product development from 0 to 1. As a Machine Learning Engineer, you'll partner closely with the CTO and founding team to design and implement LLM-powered features, forecasting models, and intelligent automation capabilities that directly impact customer outcomes.
Responsibilities include:
- Designing, deploying, and optimizing machine learning models for cloud spend forecasting, anomaly detection, and cost control
- Building and integrating LLMs to power Agent-style chat interfaces and automation tools
- Developing secure, scalable ML infrastructure across multiple cloud platforms
- Driving full-cycle ML projects-architecture, development, deployment, monitoring, and iteration
- Collaborating with product, engineering, and leadership teams to align AI development with business priorities
- Experimenting with new techniques in generative AI, model optimization, and real-time inference
Requirements:
We're looking for a startup-minded ML engineer with strong technical depth and a bias toward action. You should have:
- 5+ years of experience in machine learning, AI model development, and infrastructure deployment
- Fluency in Python, with experience in tools like PyTorch, Hugging Face, LangChain, and Terraform
- A proven ability to deploy ML models at scale across distributed cloud systems
- Experience working with LLMs and open-source models (e.g., Llama, Mistral, Falcon)
- An understanding of AI security best practices and a commitment to building responsibly
- Strong communication skills and the ability to convey complex ideas clearly and confidently
- Comfort in high-ambiguity, fast-paced environments where you'll help define the roadmap
Benefits:
As a Machine Learning Engineer, you can expect:
$180,000 - $220,000 base salary
Equity in a high-growth company
Unlimited PTO and flexible work policy

SIMILAR
JOB RESULTS

Digital Designer
London
£200 - £200
+ Digital Analytics
ContractLondon
To Apply for this Job Click Here
Digital Designer – Contract – £200/day Outside IR35
Duration: 4 Months
Location: East London (1 day a week onsite, rest remote)
Rate: £200/day (Outside IR35)
Start Date: ASAP
We’re looking for a Digital Designer to support a well-known business on a 4-month contract. You’ll play a key role in the design and delivery of engaging web and app interfaces and email marketing assets, working closely with product and marketing teams.
Key Responsibilities:
-
Create user-friendly, visually appealing designs for web apps
-
Design responsive, branded email templates
-
Collaborate with developers and stakeholders to ensure design consistency
-
Maintain brand standards across all digital output
✅ What We’re Looking For:
-
Strong experience in digital design, particularly for web and email
-
Proficiency with Adobe Creative Suite (Photoshop, Illustrator, XD etc.)
-
A solid portfolio showcasing UX/UI and email design work
-
Comfortable working independently and to tight deadlines
-
Ability to commute to East London once a week
This is a great opportunity to work with a recognisable brand on exciting digital projects, with flexibility and autonomy built in.
Please reach out to Grace McCrudden at Harnham for more information
To Apply for this Job Click Here

Senior Data Scientist
London
£60000 - £70000
+ Data Science & AI
PermanentLondon
To Apply for this Job Click Here
Senior Data Scientist
Reading – Hybrid
Up to £70,000
About the Role
I’m currently partnered with a global leader in data, insights, and consulting who are looking to bring on a Senior Data Scientist to join their highly respected data team.
This is a high-impact opportunity focused on yield optimisation – using data science to drive better consistency, forecast accuracy, and operational efficiency. You’ll work closely with both commercial and technical stakeholders to develop data-driven strategies that improve trading outcomes at scale.
The team is well-established and growing, with excellent visibility across the business and a genuine appetite for data innovation.
Key Responsibilities
- Optimise existing yield and matching models for better consistency and forecasting performance.
- Use statistical analysis to uncover trends in historical trading data and recommend actionable improvements.
- Build and deploy scalable data science solutions that drive measurable business impact.
- Collaborate with developers and commercial leads to implement models into production systems.
- Present insights in a clear, impactful way to senior non-technical stakeholders.
- Own the full data science project lifecycle – from hypothesis to production and iteration.
- Support scenario planning and forecasting for commercial strategy.
What They’re Looking For
- Solid experience in yield, pricing, or forecasting optimisation – ideally within online marketplaces, programmatic media, travel, or insurance.
- Strong technical skills in Python or R, and experience working with SQL and data visualisation tools such as Power BI.
- Familiarity with cloud platforms such as AWS, Redshift, or Azure.
- Strong grasp of forecasting, optimisation, and statistical modelling techniques.
- Confident communicator who can translate technical outputs into business recomme
- ndations.
- Comfortable working in agile, iterative environments with cross-functional teams.
**Please note: Unfortunately, this role does not offer visa sponsorship**
How to Apply:
Please register your interest by sending your CV to Emily Burgess via the Apply link on this page
To Apply for this Job Click Here

Data Scientist
London
£70000 - £80000
+ Data Science & AI
PermanentLondon
To Apply for this Job Click Here
Data Scientist
Up to £80,000
London (Hybrid)
Company:
They are an AI-driven climate risk analytics platform that partners with businesses within Insurance, Private Equity, Asset Management and governments to understand and prepare for the physical and transitional impacts of climate change.
Responsibilities:
- Research and implement loss models that quantify climate-related risks, focusing on robustly estimating asset vulnerabilities.
- Calibrate and validate loss models against a wide variety of data sources, both qualitatively and quantitatively to ensure they meet rigorous scientific standards.
- Contribute to building our overall loss modelling framework, ensuring robustness and adaptability across diverse client requirements and geographies
- Model documentation and presentations to engage with stakeholder and customers, all while representing the team at international conferences and industry events
Requirements:
- MSc or PhD Degree in Computer Science, Artificial Intelligence, Mathematics, Statistics or related fields.
- 3+ years of experience in a Data Science, Data Analysis, or related role
- Strong hands-on experience with Python and SQL
- Excellent communication skills and stakeholder engagement ability
How to Apply:
Please register your interest by sending your CV to Emily Burgess via the Apply link on this page
To Apply for this Job Click Here

Data Science Manager
London
£100000 - £120000
+ Data Science & AI
PermanentLondon
To Apply for this Job Click Here
Data Science Manager
Up to £120,000
London (Remote/Hybrid)
Company:
Join a global marketplace redefining how pre-owned goods are collected, reused, and redistributed. Founded in the UK, they’ve built a scalable, tech-enabled platform that intercepts millions of unwanted items every year, transforming them from landfill-bound to re-loved by new owners.
Responsibilities:
- Lead and deliver scalable statistical models and analyses that drive business decisions
- Own end-to-end delivery of data science projects, from identifying and integrating data sources to experimentation, model deployment, and pricing strategy optimization
- Define and implement best practices in modelling, automation, and process improvements, ensuring the right tools and approaches are used for each problem.
- Effectively communicate complex insights to both technical and non-technical audiences, including senior executives, with a strong focus on commercial impact.
- Collaborate cross-functionally with product managers, engineers, and other stakeholders to align data science work with broader strategic goals under a “One Team” approach.
Requirements:
- MSc or PhD Degree in Computer Science, Artificial Intelligence, Mathematics, Statistics or related fields.
- Strong coding skills in Python and SQL
- Strong communication skills, with the ability to work effectively in a fast-paced, collaborative environment.
**Please note that this role does not offer visa sponsorship**
How to Apply:
Please register your interest by sending your CV to Emily Burgess via the Apply link on this page
To Apply for this Job Click Here

Data Engineer
London
£100000 - £110000
+ Data Engineering
PermanentLondon
To Apply for this Job Click Here
DATA ENGINEER
LONDON
£110K + 100% BONUS
THE COMPANY
This global private equity investor focuses on transformative software and services businesses-backing companies that are changing the way the world works. With over 50 portfolio companies valued collectively at $150bn+, they’re behind one of the largest software portfolios globally. Their scale creates huge opportunity to drive value through data-empowering better decision-making and building next-generation of data products that will change the world.
THE ROLE
As a Data Engineer, you will play a pivotal role in designing and building scalable data solutions that directly influence both internal operations and value creation across a world-leading portfolio. This is a unique opportunity to work in a hands-on, high-impact role shaping greenfield data platforms and embedding data strategy within ambitious software businesses.
Specifically, you can expect to be involved in the following:
- Designing and developing full-stack data pipelines and platforms using modern tools such as dbt, Airflow, and cloud infrastructure
- Cleansing, enriching and modelling data to generate commercial insights and power C-level dashboards
- Delivering scalable solutions that support internal use cases and extend directly to portfolio companies
- Working on project-based data initiatives, including AI/ML integrations for predictive modelling and cloud-based productisation
- Collaborating with commercial teams (RevOps, Finance, Sales) to turn messy data into meaningful business value
- Building internal data products and helping define the next generation of services across the wider platform
SKILLS AND EXPERIENCE
The successful Data Engineer will have the following skills and experience:
- 5+ years in data engineering, with experience in commercial environments
- Proven ability to manage the full data lifecycle-from ingestion to transformation to delivery
- Comfortable working closely with commercial functions (e.g. finance, sales) and building tools that serve business needs
- Background in startups or scale-ups with high adaptability and a hands-on approach
- Experience with modern data tools (e.g. dbt, Airflow, CI/CD) and at least one cloud platform (AWS, GCP, Azure)
- Strong communication skills and a track record of credibility in high-pressure or client-facing settings
BENEFITS
The successful Data Engineer will receive the following benefits:
Salary up to £110k
Hybrid working model – 3 days a week in office
100% Bonus
30 days annual leave
Benefits package (pension, private medical, etc…)
HOW TO APPLY
Please register your interest by sending your resume/CV to Joana Alves via the Apply link on this page.
To Apply for this Job Click Here

Senior Customer Analyst (7-month FTC)
Watford
£50000 - £60000
+ Advanced Analytics & Marketing Insights
PermanentWatford, Hertfordshire
To Apply for this Job Click Here
Senior Customer Analyst – FTC (7 Months) | Up to £60,000 + Bonus + Benefits
Location: Watford (2-3 days in office, flexible hybrid model)
Contract: Fixed-Term Contract (7 months)
Sector: Global Retail
A leading global retailer is seeking a Senior Customer Analyst to join a rapidly growing customer analytics team. With 4,500+ stores across 9 countries, this brand is best known in the UK and Europe for its off-price retail model, including a popular high-street fashion chain.
This is an exciting opportunity to join a fast-evolving analytics function, working on high-impact projects such as store clustering, customer segmentation, and retail sales drivers. You’ll play a key role in uncovering insights that inform strategy across marketing, customer loyalty, and performance.
What You’ll Do:
-
Own end-to-end analytical projects using SQL and customer data
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Collaborate with stakeholders to deliver actionable insights
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Present and communicate complex findings through compelling data storytelling
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Contribute to the growth and maturity of a young analytics function
Core Skills:
-
3+ years of advanced SQL experience (essential)
-
Strong data storytelling and stakeholder communication
-
Background in working with relational databases, customer data, and marketing/CRM functions
-
Familiarity with Python or R (advantageous)
-
Exposure to GA, email marketing analytics, or retail data (nice to have)
Who You Are:
-
Commercially minded and insight-driven
-
Proactive and comfortable working in a small, non-agile, high-collaboration team
-
Passionate about solving business problems with data
-
Able to work independently and hit the ground running
Why Join?
-
Flexible hybrid working (typically 2-3 days in-office, with emphasis on collaboration)
-
Up to 16% performance bonus + stock worth ~£32k + healthcare & more
-
Loyalty bonus after 3 years (if made permanent)
-
Office located directly opposite the station for easy commute
Interview Process:
-
1st stage: Interview with the team
-
2nd stage: SQL/insight-based task
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Final stage: Sign-off conversation (if needed)
Apply via the link below !!!
To Apply for this Job Click Here

Senior Analytics Engineer
London
£85000 - £90000
+ Advanced Analytics & Marketing Insights
PermanentLondon
To Apply for this Job Click Here
Job Title: Senior Analytics Engineer
Location: London – Hybrid Working
We’re looking for a Senior Analytics Engineer to help shape the future of data at a major media organization. In this role, you’ll transform raw data into powerful, actionable insights through advanced data modeling and robust semantic layers. You’ll play a key role in scaling analytics infrastructure, optimizing pipelines, and mentoring fellow engineers.
Key Responsibilities:
- Build and optimize data models across bronze to gold layers using dbt and Kimball methodology
- Own and manage the semantic layer for BI tools like Looker and Power BI
- Implement rigorous data quality and testing frameworks
- Drive CI/CD practices with tools like GitHub Actions and Terraform
- Lead technical decisions and mentor junior engineers
- Collaborate across engineering, data science, and product teams to deliver business impact
Skills & Experience:
- Expert in SQL, dbt, and cloud data warehouses (e.g., BigQuery, Redshift)
- Strong experience with Airflow, Python, and multi-cloud environments (AWS/GCP)
- Proven background in designing and scaling analytics solutions in agile environments
- Proven experience as an Analytics Engineer
Nice to Have:
- Experience with Looker or Power BI
- Familiarity with Data Vault or advanced modeling techniques beyond Kimball
If you are interested in this role, please apply. To follow up please email me or message on LinkedIn.
To Apply for this Job Click Here

Digital Merchandising Executive – Contract
Leeds
£100 - £125
+ Digital Analytics
ContractLeeds, West Yorkshire
To Apply for this Job Click Here
Digital Merchandising Executive – Contract
Healthcare Brand
Leeds – Hybrid
£100-£125 per day – Outside IR35
A leading healthcare provider is seeking a Digital Merchandising Executive to join their expanding ecommerce team on a contract basis. As a pioneer in the digital healthcare space, this organisation supports over a million patients nationwide.
You’ll be a key part of the digital trading team, supporting ecommerce activity across several consumer brands and digital healthcare platforms. This is a fast-paced, data-driven environment where your input will directly influence commercial outcomes and customer experience.
Role & Responsibilities:
- Support merchandising across multiple online platforms
- List new products and ensure timely delivery of product launches, promotions, and supplier campaigns
- Optimise product pages with SEO-focused copy and engaging imagery in line with brand guidelines
- Test and validate pricing, promotional codes, and product data for accuracy and consistency
- Merchandising content across homepages and category pages aligned with marketing calendars
- Collaborate with trading and marketing teams to ensure promotional and product priorities are reflected on site
- Maintain product categorisation and taxonomy to ensure seamless user navigation
- Report on ecommerce KPIs, search behaviour, and content effectiveness to guide decision-making
- Benchmark competitors to identify opportunities in pricing, range, and merchandising tactics
- Support the adoption of tools and tech (including AI) to enhance ecommerce processes and customer journeys
Skills & Experience:
- Experience in digital merchandising, ecommerce, or digital marketing
- Strong commercial mindset, with the ability to balance creativity and data-led decision-making
- Confident with ecommerce platforms and CMS tools
- Excellent attention to detail and written communication
- Comfortable working both autonomously and collaboratively across teams
- Proactive and adaptable with a continuous improvement mindset
Benefits
£100-£125 per day outside IR35, 3 month contract, Leeds (hybrid)
How to Apply
Register your interest by sending your CV to Lloyd Dunstall via the Apply link on this page
Digital Merchandising Executive / Digital / Merchandising / Healthcare / Online
To Apply for this Job Click Here

Head of Commercial Analytics
London
£125000 - £135000
+ Advanced Analytics & Marketing Insights
PermanentLondon
To Apply for this Job Click Here
Head of Commercial Analytics | £135,000 + Bonus + Equity
A leading global marketplace is hiring a Head of Commercial Analytics to steer strategic commercial performance and lead a high-impact analytics function across a highly competitive consumer sector in the UK.
The Role
You’ll oversee a senior team across Pricing, Trading, and Customer Analytics – using data to drive strategy, defend market share, and unlock growth opportunities. This is a commercial, P&L-focused role where analytics is central to decision-making and business performance.
Your Impact
-
Own and lead analytics across pricing, promotions, customer behavior, and trading performance
-
Partner closely with Strategy, Commercial, and Marketing to drive revenue and market share growth
-
Identify and action opportunities across core and emerging customer segments
-
Develop experienced senior managers while remaining close to the most business-critical analytical work
What We’re Looking For
-
Experience leading large, high-performing analytics teams (including managing other managers)
-
Deep commercial acumen – with a strong grip on pricing, trading, and end-to-end P&L performance
-
Marketplace/platform experience preferred
-
Experience across global or multi-region environments is a plus
Package
-
£135,000 base salary
-
Discretionary bonus
-
Full benefits package
Interview Process
-
Intro interview with Analytics Director
-
Case presentation with Strategy leadership
-
Final interview with the UK Managing Director
- Ready to make a strategic impact at scale? Apply in confidence to learn more.
To Apply for this Job Click Here

Senior Data Scientist
London
£450 - £480
+ Data Science & AI
ContractLondon
To Apply for this Job Click Here
Job Opportunity: Marketing & Data Science – Measurement & Modelling
Location: Hybrid (2 days per week in office for first month, flexible after)
Duration: 3 months initially
Rate: £450-480/day (Outside IR35)
Commute: 2 hours by train from Central London
Role Overview:
This role focuses on marketing effectiveness and data science in the retail industry, with a strong emphasis on email campaign measurement, incremental value, and experimentation. The main responsibilities include finalising the Marketing Mix Modelling (MMM) framework, completing the A/B testing framework, and automating marketing analytics processes. The ideal candidate will have experience in causal inference, MMM, and experimentation.
Key Responsibilities:
-
Finalising the MMM framework and modelling (70% complete)
-
Building out the A/B testing framework
-
Automating marketing analytics processes, particularly around experimentation
-
Handling complex data and working with incomplete data
-
Measuring campaign impact and refining marketing strategies
Tech Stack:
-
Core: Databricks, SQL, Python, PySpark
-
Nice to Have: R, dashboarding tools
Ideal Candidate:
-
4-5 years of commercial experience in data science, preferably in an eCommerce or marketing analytics environment
-
Proven experience in causal inference, MMM, and experimentation
-
Strong communication skills and the ability to explain data-driven insights
Interview Process:
-
Stage 1: Technical assessment
-
Stage 2: Knowledge-based interview
To Apply for this Job Click Here

Junior Data Engineer
London
£35000 - £40000
+ Data Engineering
PermanentLondon
To Apply for this Job Click Here
Role: Junior Data Engineer
Salary: £35,000 – £40,000 (up to £45,000 for the right candidate) + Discretionary Bonus
WFH: 5 Days/Week Onsite – South Kensington, London
Overview
Our client is a fast-growing intelligence and analytics firm specialising in global shipping and commodities. Their research team transforms complex maritime data into actionable insight for brokers and clients, powering commercial decisions with high-precision analytics and visualisation.
They are now hiring a Junior Data Engineer to join their engineering and research team. This is a graduate-level opportunity with no prior industry experience required. You’ll work side-by-side with experienced engineers and analysts on maintaining and modernising data infrastructure. The business is investing heavily in its platform over the next 12 months, offering significant career growth for curious and ambitious talent.
Key Responsibilities
- Maintain and improve Python-based ETL pipelines (~60 currently in production)
- Support the migration from on-premise to cloud-based SQL environments
- Keep dashboards and reporting chartbooks (Power BI & PDFs) up to date
- Implement basic data validation and quality controls
- Manage version control and CI/CD workflows using Git
- Contribute to internal documentation
- Provide analytics support using Python when needed
Ideal Candidate
- BSc in Computer Science or a closely related discipline (From Russell Group/Red Brick university)
- Strong Python fundamentals
- Basic SQL skills and familiarity with Git
- Strong communicator, eager to learn, and naturally curious
- Comfortable working across multiple business areas with varied responsibilities
Nice-to-Haves
- Exposure to tools like Prefect, Airflow, or Dagster
- Familiarity with Azure SQL, Snowflake, or dbt
Tech Stack / Tools
- Python
- SQL (on-prem + Azure SQL Data Warehouse)
- Git
Benefits
- £35,000 – £40,000 starting salary (up to £45,000 for the right candidate)
- Discretionary annual bonus
- Clear progression path as part of a growing central data function
- New South Kensington office with top-tier facilities
- Work closely with senior analysts and engineers
- Daily learning opportunities in a collaborative, high-trust environment
- Exposure to a variety of real-world datasets and commercial applications
Interview Process
- Introductory Chat (30 mins) – Culture and motivation
- Final Interview (Onsite) – Show and tell of past work + discussion around the role
To Apply for this Job Click Here

Digital Product Analyst
London
£40000 - £50000
+ Advanced Analytics & Marketing Insights
PermanentLondon
To Apply for this Job Click Here
Digital Product Analyst
Up to £50,000 + Benefits
Oxford Circus – 4 days a week in-office (Mondays & Fridays required – no flex)
We’re hiring for a fast-growing retail group that’s investing heavily in data and digital. With a major shift to Google Cloud now complete and a centralised analytics team in place, it’s an exciting time to join.
As a Digital Product Analyst, you’ll sit within the Product Analytics team – working closely with Product Managers, Developers, and Implementation teams to understand user behaviour, site performance, and optimisation opportunities.
What you’ll be doing:
-
Analysing user journeys and on-site performance
-
Supporting A/B testing and experimentation
-
Working with GA4 and SQL/BigQuery to build insights
-
Partnering with the GTM team on tracking and data quality
-
Contributing to product decisions with actionable data
What we’re looking for:
-
Experience in digital or product analytics (not marketing-focused)
-
GA4 or Adobe Analytics knowledge
-
SQL skills and some experience with BigQuery
-
Familiarity with GTM or similar tools
-
Comfortable working in a fast-paced, evolving environment
You’ll join a supportive, growing team where analytics plays a key role in business decisions – with lots of opportunities to learn and grow.
Interview process:
-
30-min intro chat
-
1-hour technical interview
-
Final face-to-face session with task – fast decisions
Apply now to help shape the future of digital in one of the UK’s biggest retail groups.
To Apply for this Job Click Here

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