Founding Machine Learning Engineer
New York / $170000 - $240000 annum
INFO
$170000 - $240000
LOCATION
New York
Permanent
Founding Machine Learning Engineer
AI Start Up
Location: New York, NY (Onsite, 5 days/week)
Compensation: $170,000-$240,000 base + equity
Harnham is partnering with an early-stage startup that is developing an open-source platform designed to optimize large language model (LLM) applications. This platform integrates inference, observability, optimization, and experimentation to continuously enhance LLM performance, making models smarter, faster, and more efficient over time. Backed by leading investors and guided by a clear technical roadmap, this startup is laying the groundwork for the next generation of AI solutions.
Are you a seasoned ML professional ready to take on a pivotal role at a cutting-edge AI start-up? This is your opportunity to shape the future of a revolutionary platform and leave a lasting impact on the AI/ML landscape.
THE ROLE
This is an opportunity to join an emerging company at the frontier of ML engineering. As a founding member of the technical staff, you will take on a leading role in developing innovative ML solutions for optimizing LLMs, directly influencing the product and platform's growth. You will work closely with the CEO and CTO to define the technical vision, contribute to open-source initiatives, and have a significant impact on shaping both the product and the future of the company.
RESPONSIBILITIES
- Design, implement, and optimize advanced ML solutions for large language models, focusing on reinforcement learning and other cutting-edge approaches.
- Build high-performance systems with sub-millisecond overhead to support LLM inference and observability pipelines.
- Translate academic research into practical solutions, including advanced techniques such as retrieval-augmented generation (RAG) and agent-based systems.
- Develop and integrate experimentation frameworks, including A/B testing, routing strategies, and model optimization.
- Work alongside the CTO and CEO to define the technical roadmap, contributing to both infrastructure and application development.
- Take ownership of the ML lifecycle from research and prototyping to production deployment.
YOUR SKILLS AND EXPERIENCE
- Commercial experience in machine learning engineering or research, particularly with large language models or reinforcement learning.
- Proven track record of tackling complex technical challenges and driving high-impact projects from concept to production.
- Deep understanding of optimization techniques for ML models.
- Experience with advanced inference strategies, model evaluation, and experimentation methodologies.
- Strong interest in growing your skill set and taking on new technical challenges across the stack.
- Ability to collaborate closely in an in-person, fast-paced team environment.
As a founding member of a technical team, you will have the opportunity to shape not only the product but also the company's engineering culture, practices, and long-term vision. If you are passionate about pushing the boundaries of machine learning and want to work on the cutting edge of AI, apply.
HOW TO APPLY
Register your interest by sending your resume to Virginia using the Apply link
KEYWORDS
Machine Learning | ML | Large Language Model | LLM | Open-source | AI Optimization | Feedback loop | Reinforcement learning | Experimentation | Optimization strategy
CONTACT
SIMILAR
JOB RESULTS
Senior Machine Learning Engineer
New York
$140000 - $170000
+ Data Science & AI
PermanentNew York
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Machine Learning Engineer
Hybrid- NYC, (with travel up to once a month)
$140,000-$170,000
Tech Startup
Are you an experienced Machine Learning Engineer who is eager to work on the latest advancements in conversational AI and sensor technology? Harnham is partnering with a company that is leading the charge in transforming industries by bridging the gap between digital and physical worlds.
THE COMPANY
This company is revolutionizing the physical world by using sensor technology to connect AI agents with everyday objects. Their product has broad applications across many product-based industries. With a growing customer base, their products leverage real-time data to enhance business decision-making.
THE ROLE
As a Machine Learning Engineer, you will be working closely with the Head of AI to design and develop AI-driven virtual assistants and chatbots that interact with the company’s innovative sensor technology. You will be responsible for building multi-agent frameworks, optimizing LLMs, and implementing Retrieval-Augmented Generation systems to support dynamic, intelligent interactions between users and sensor devices. This is a pivotal role where you’ll contribute to deploying AI solutions in real-world applications, enhancing NLP and conversational AI capabilities that connect real-world environments with digital intelligence.
YOUR SKILLS AND EXPERIENCE
- Experience in developing and deploying AI solutions in production environments, especially in cloud-based AI systems (AWS, GCP)
- Expertise in building and optimizing LLMs
- Proficient in natural language processing techniques, especially for chatbot and AI-powered agent development
- Familiarity with multi-agent frameworks and experience implementing Retrieval-Augmented Generation (RAG) systems for enhanced AI-driven solutions.
- Ability to integrate and manage data from diverse sources for context-aware, real-time AI responses
- Solid understanding of machine learning engineering, deep learning frameworks (e.g., TensorFlow, PyTorch), and model optimization
- Experience with edge computing solutions for real-time data processing and AI-driven interactions
- Strong communication skills to collaborate with cross-functional teams, external stakeholders, and clients
HOW TO APPLY
Register your interest by sending your Resume to Virginia via the apply link on this page.
KEYWORDS
Machine Learning | LLM | Chatbot | GenAI | Artificial Intelligence | Multi-Agent Frameworks | Deploying | startup | NLP | RAG | Retrieval-Augmented Generation | Edge Computing | Real-Time AI | Machine Learning Models
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Senior Product Analytics Engineer
Manchester
£60000 - £67000
+ Data Engineering
PermanentManchester, Greater Manchester
To Apply for this Job Click Here
Role: Senior Product Analytics Engineer
FULLY REMOTE (1x month in Uxbridge)
Salary: £60,000 – £67,000 (dependent on experience)
Insight into the Company:
This organisation is a large telecoms organisation that is looking to change the industry through their flexible approach! As an Analytics Engineer on their team, you will work to build the customer data platform.
The ideal candidate will be a team-player, working in a team of 10, working with and supporting different data workstreams. You will have strong communication skills to work within the team and also with stakeholders. The role will involve improving existing models to ensure they are efficient and scaled.
Role and Responsibilities:
- You will ingest and transform data in snowflake using DBT
- You will support the building of the data warehouse in Snowflake
- You will work to sustain and implement existing ELT pipelines
Skills and Experience:
- Essential to have 4+ years experience in:
- SQL
- Python
- DBT
- Cloud techs such as Snowflake, BigQuery or Databricks
- Product Analytics
- Experience working with data product teams
- Desirable to have experience with:
- CI/CD pipelines
- Kafka; real-time streaming
- Snowflake as a data warehouse
Interview Process:
- There are 4 stages to the process:
- A 30 minute discussion about experience
- An hour take home exercise
- A technical interview with the Data Director and Analytics Engineer
- One hour culture fit interview
To Apply for this Job Click Here
Location Analytics Solutions Consultant
London
£80000 - £550000
+ Advance Analytics & Mrktg Insight
PermanentLondon
To Apply for this Job Click Here
LOCATION SOLUTIONS CONSULTANT – LONDON
UP TO £80,000
THE COMPANY
We are working with a renowned Location Analytics Consultancy on a key Geospatial Solutions Consultant hire.
THE ROLE
The successful Locations Solutions Consultant responsibilities will include:
- Collaborate with clients to scope and define the best approaches, methods, and geospatial analytics solutions for their needs, ensuring realistic and achievable outcomes.
- Maintain a strategic presence throughout the project lifecycle, ensuring alignment with client goals and value delivery.
- Lead project initiation, setting clear objectives and building confidence in the proposed solutions.
- Re-engage at critical project milestones to ensure the solutions deliver the intended insights, outcomes, and impact.
- Drive the development of new geospatial analytics capabilities and represent the organization at industry events, press, and PR activities.
YOUR SKILLS AND EXPERIENCE
The successful Locations Solutions Consultant will have the following skills and experience:
- Build trusted partnerships with clients, helping them understand and maximize the value of geospatial analytics.
- Work closely with project managers and technical teams to guide the project from inception to completion.
- Lead client workshops, define project roadmaps, and set expectations for deliverables
- Monitor project progress through regular check-ins, ensuring alignment with strategic objectives
- Support innovation initiatives by exploring emerging trends and technologies in geospatial analytics
- Represent the organization as a thought leader, presenting at conferences, publishing insights, and driving awareness of geospatial solutions
THE BENEFITS
The successful Locations Solutions Consultant will receive a salary of up to £80,000, plus an array of additional benefits.
HOW TO APPLY:
Please register your interest by sending your CV to Harry Mincer via the apply link below.
To Apply for this Job Click Here
Technical SEO Analyst
London
£30000 - £40000
+ Advance Analytics & Mrktg Insight
PermanentLondon
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TECHNICAL SEO ANALYST
£30,000 – £40,000
LONDON – HYBRID – 2/3 DAYS A WEEK
An exciting opportunity to be a Technical SEO Analyst at an unconventional law firm!
THE COMPANY
This law firm acts on behalf of their high-net-worth clients with situations including privacy, reputation and security.
THE ROLE
You’ll sit in a newly established Digital Intelligence team, looking online and predicting how situations may take place in the future and offering recommendations/solutions for next steps.
SKILLS + EXPERIENCE
- Technical SEO experience is a must
- Google Analytics experience
- SEMrush and Screaming Frog skillset
- Strong stakeholder engagement
HOW TO APPLY
If this sounds like the role for you, swiftly send over your CV to Izzi at Harnham by using the link below.
KEY TERMS
IBM, Coremetrics, Google Analytics, GA, Omniture, SiteCatalyst, Adobe Analytics, Analyst, Web, Digital, Online, Website, Financial Services, Finance, A/B, Test, Split, Multivariate, MVT, Tracking, Code, Tagging, Tags, Insight, Client, Agency, Management, Strategy, CRO, Conversion, Optimisation, Optimizely, Test and Target, Adobe Target, Maxymiser, VWO, Visual Website Optimiser, Tag Manager, Tag-manager, Tagging, Tag Management, Set Up Tags, Manage Tags, Manage Tagging, Managing Tags, Managing Tagging, Setting Up Tags, Analytics Tracking, Implement Tags, Implement Tagging, Tagging Implementation, Tag Implementation, Tracking Implementation, Analytics Implementation
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Senior Analytics Consultant
Ipswich
£50000 - £60000
+ Advance Analytics & Mrktg Insight
PermanentIpswich, Suffolk
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SENIOR DATA ANALYST
Ipswich, Remote working with occasional travel into the office (monthly)
Up to £60,000 plus great benefits
Please note: Please do not apply if you require a sponsorship now or in the future as this cannot be provided.
The Company:
A market-leading consultancy within Digital Transformation, AI Tech and Customer Experience.
The Role:
As a Senior Data Analyst, you will be responsible for:
– Uncover trends, patterns and insights through in-depth analysis
– Creating data visualisations in Tableau for clients to communicate insights effectively
– Collaborate with clients and internal teams to deliver solutions
Skills/Requirements:
– Tableau experience
– Strong SQL experience
– Minimum 3/4 years experience in analytics
– R / Python experience
– Strong gravitas with stakeholders
Interview Process:
1st Stage – Initial chat with HR, culture fit/expectations
2nd Stage – Technical interview with the team
3rd Stage – Meet the CEO
To Apply for this Job Click Here
Lead Generation Manager
London
£40000 - £50000
+ Advance Analytics & Mrktg Insight
PermanentLondon
To Apply for this Job Click Here
LEAD GENERATION MANAGER
UP TO £40,000 – £50,000
LONDON – HYBRID – 4 DAYS IN OFFICE
*Please note, this company is unable to offer sponsorship at this time*
THE COMPANY
This UK based ‘Deal Finder’ business operates in the Ecommerce sector. They specialise in offering discounts and promotions on a variety of products, services and experiences.
THE ROLE
This person will oversee Co-Sponsor and Co-Registration channels, focusing on lead volume optimisation and ROI improvement through audience segmentation, CRM strategies and detailed ROI analysis.
SKILLS + EXPERIENCE
- Co-Sponsor and Co-Registration experience
- Marketing KPI knowledge e.g. Cost per lead, ROI, open rates
- Supplier and stakeholder management experience
- Data Visualisation tools – open to any
HOW TO APPLY
If this sounds like the role for you, swiftly send over your CV to Izzi at Harnham by using the link below.
KEY TERMS
IBM, Coremetrics, Google Analytics, GA, Omniture, SiteCatalyst, Adobe Analytics, Analyst, Web, Digital, Online, Website, Financial Services, Finance, A/B, Test, Split, Multivariate, MVT, Tracking, Code, Tagging, Tags, Insight, Client, Agency, Management, Strategy, CRO, Conversion, Optimisation, Optimizely, Test and Target, Adobe Target, Maxymiser, VWO, Visual Website Optimiser, Tag Manager, Tag-manager, Tagging, Tag Management, Set Up Tags, Manage Tags, Manage Tagging, Managing Tags, Managing Tagging, Setting Up Tags, Analytics Tracking, Implement Tags, Implement Tagging, Tagging Implementation, Tag Implementation, Tracking Implementation, Analytics Implementation
To Apply for this Job Click Here
Advertising Analyst
London
£45000 - £55000
+ Advance Analytics & Mrktg Insight
PermanentLondon
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ADVERTISING ANALYST (12 MONTH FTC) – LONDON
UP TO £55,000
THE COMPANY
I am supporting a globally renowned media conglomerate on a key Advertising/Yield Analytics position. Within this role, you will utilise tools such as Excel, PowerBI, BigQuery and Google Ad Manager to run monthly reports and generate insights on ad performance.
THE ROLE
The successful Advertising Analyst’s responsibilities will include:
- Run and analyse monthly reports focusing on advertising performance, revenue, inventory, and sales rates
- Generate insights to explain relationships and trends, such as inventory fluctuations, and present findings to stakeholders
- Perform deep-dive analyses to identify challenges with inventory or pricing and collaborate on commercial strategies to maximize deals
- Leverage tools like Excel, Power BI, and BigQuery to create dashboards and visualizations for tracking and decision-making
YOUR SKILLS AND EXPERIENCE
The successful Advertising Analyst’s will have the following skills and experience:
- Strong proficiency in Microsoft Excel
- Skilled in Power BI and BigQuery to create reports and visualisations
- Familiarity with Google Ad Manager or similar platforms
- Proven ability to work collaboratively with commercial teams to align analytics with business strategies
THE BENEFITS
The successful Advertising Analyst will receive a salary of up to £55,000, plus an array of additional benefits.
HOW TO APPLY:
Please register your interest by sending your CV to Harry Mincer via the apply link below.
To Apply for this Job Click Here
Associate Project Director (Market Research)
London
£50000 - £60000
+ Advance Analytics & Mrktg Insight
PermanentLondon
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ASSOCIATE PROJECT DIRECTOR (MARKET RESEARCH)
UP TO £60,000
LONDON (HYBRID)
Harnham are working with a leading healthcare focused research agency on an exciting Associate Project Director role. They’re looking for someone with prior experience in managing quant projects looking for a step up.
THE ROLE AND RESPONSIBILITIES:
As an Associate Director, you’ll be leading a client services team, acting as the go-to person for guidance and making sure projects run smoothly. You’ll juggle managing people, keeping clients happy, and improving how things are done behind the scenes. If you’ve got a knack for market research-especially in healthcare-and know how to handle complex projects, this role might be a great fit. Specifically, you will be:
- Leading your team: mentoring, coaching, and helping them hit their goals while making sure workloads are balanced.
- Guiding operations: providing support and advice to the team when challenges pop up.
- Handling project issues: managing escalations and working with internal teams to ensure projects are delivered on time, on budget, and to the client’s satisfaction.
- Improving processes: working with leadership to tweak and enhance workflows and systems to make everyone’s life easier.
- Tracking progress: keeping an eye on how projects are going, including quality checks and meeting data collection targets.
- Managing finances: overseeing billing and making sure projects finish with healthy profit margins.
YOUR SKILLS AND EXPERIENCE:
The ideal Associate Project Director will have:
- A degree (or equivalent experience), plus at least 5 years in market research and 3 years in project management.
- Bonus points if you’ve got experience in healthcare-focused research or handling big, complex projects.
- Strong organizational skills, great communication, and the ability to problem-solve under pressure.
- Solid Microsoft Office skills (Excel, Outlook, Word).
- A collaborative mindset with the ability to work solo or as part of a team.
Apply below!
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Customer Data Analyst
London
£35000 - £40000
+ Advance Analytics & Mrktg Insight
PermanentLondon
To Apply for this Job Click Here
CUSTOMER DATA ANALYST – LONDON
UP TO £40,000
THE COMPANY
I am working exclusively with an iconic fashion house on a pivotal Analytics hire.
THE ROLE
The successful Customer Data Analyst responsibilities will include:
- Analyse client data to identify active and dormant customer segments, providing insights that shape targeted strategies
- Develop and recommend activation strategies to encourage increased customer visits and spending
- Deliver actionable insights on customer behaviours and preferences, driving business improvements
- Collaborate with teams to design and measure the impact of customer activation campaigns
- Ensure data quality and accuracy by auditing, cleaning, and maintaining data integrity
YOUR SKILLS AND EXPERIENCE
The successful Customer Data Analyst will have the following skills and experience:
- Knowledge of tools like SQL, Excel, and data visualization platforms (e.g., Tableau, Power BI)
- Strong analytical skills with experience in data segmentation and visualisation
- A proactive approach to data quality and accuracy, with a keen eye for detail
- The ability to turn complex data into clear, actionable recommendations.
- A collaborative mindset with excellent communication skills
THE BENEFITS
The successful Customer Data Analyst will receive a salary of up to £40,000, plus an array of additional benefits.
HOW TO APPLY:
Please register your interest by sending your CV to Harry Mincer via the apply link below.
To Apply for this Job Click Here
Location Intelligence Solutions Consultant
London
£45000 - £55000
+ Advance Analytics & Mrktg Insight
PermanentLondon
To Apply for this Job Click Here
LOCATION INTELLIGENCE SOLUTIONS CONSULTANT
UP TO £45,000 – £55,000
LONDON – HYBRID – 2/3 DAYS IN OFFICE
*Please note, this company is unable to offer sponsorship at this time*
THE COMPANY
This consultancy offers location analytics solutions for a range of clients across FMCG, retail and more!
THE ROLE
This role is for someone who is confident working with clients to scope out what solutions need to be implemented to support their needs and manage the process end-to-end. The focus will be around location analytics, so a geospatial analytics background would be ideal for this position.
SKILLS + EXPERIENCE
- PowerPoint and Excel experience
- Geospatial experience/location analytics
- Consulting/client-facing experience
HOW TO APPLY
If this sounds like the role for you, swiftly send over your CV to Izzi at Harnham by using the link below.
KEY TERMS
IBM, Coremetrics, Google Analytics, GA, Omniture, SiteCatalyst, Adobe Analytics, Analyst, Web, Digital, Online, Website, Financial Services, Finance, A/B, Test, Split, Multivariate, MVT, Tracking, Code, Tagging, Tags, Insight, Client, Agency, Management, Strategy, CRO, Conversion, Optimisation, Optimizely, Test and Target, Adobe Target, Maxymiser, VWO, Visual Website Optimiser, Tag Manager, Tag-manager, Tagging, Tag Management, Set Up Tags, Manage Tags, Manage Tagging, Managing Tags, Managing Tagging, Setting Up Tags, Analytics Tracking, Implement Tags, Implement Tagging, Tagging Implementation, Tag Implementation, Tracking Implementation, Analytics Implementation
To Apply for this Job Click Here
Customer Data Analyst
London
£30000 - £40000
+ Advance Analytics & Mrktg Insight
PermanentLondon
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CUSTOMER DATA ANALYST – 12 MONTH FTC
UP TO £40,000
LONDON – 5 DAYS IN OFFICE
*Please note, this company is unable to offer sponsorship at this time*
THE COMPANY
This high-luxury fashion retailer is looking to make their first UK customer data analyst hire.
THE ROLE
This role is for someone who is confident in their customer data analytics capabilities, and who can use data to help the business understand who their clients are, and how best to target them. You’ll be presenting to the MD And Directors of the business, so strong communication and confidence is key here!
SKILLS + EXPERIENCE
- Strong SQL experience
- Strong Power BI experience – proven ability to pull data from excel and insert into Power BI to present insights
- Customer data experience
- Proven senior stakeholder management experience
- High luxury fashion background ideal
HOW TO APPLY
If this sounds like the role for you, swiftly send over your CV to Izzi at Harnham by using the link below.
KEY TERMS
IBM, Coremetrics, Google Analytics, GA, Omniture, SiteCatalyst, Adobe Analytics, Analyst, Web, Digital, Online, Website, Financial Services, Finance, A/B, Test, Split, Multivariate, MVT, Tracking, Code, Tagging, Tags, Insight, Client, Agency, Management, Strategy, CRO, Conversion, Optimisation, Optimizely, Test and Target, Adobe Target, Maxymiser, VWO, Visual Website Optimiser, Tag Manager, Tag-manager, Tagging, Tag Management, Set Up Tags, Manage Tags, Manage Tagging, Managing Tags, Managing Tagging, Setting Up Tags, Analytics Tracking, Implement Tags, Implement Tagging, Tagging Implementation, Tag Implementation, Tracking Implementation, Analytics Implementation
To Apply for this Job Click Here
Senior Web Analyst
£50000 - £60000
+ Digital Analytics
PermanentSurrey
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SENIOR WEB ANALYST
UP TO £60,000
HYBRID – SURREY – 4X A MONTH
*Please note, this company is unable to offer sponsorship at this time and you must be a UK resident*
THE COMPANY
This gut health supplement is taking the industry by storm and has seen massive growth in the past three years-including in its data teams!
THE ROLE
You’ll sit under the Analytics & Strategy Manager and spend your first 6 months supporting the correct setup of Google Analytics 4 across the business and getting their dashboards up and running. Once in place, it’s up to you to decide where you’d like your role to go by offering suggestions to improve the web analytics capabilities for the various teams.
SKILLS + EXPERIENCE
Must haves:
- You must be a GA4 expert
- Looker experience for dashboard builds
Nice to have:
- Experimentation/AB testing exposure
- Subscription-based/D2C industry experience
HOW TO APPLY
If this sounds like the role for you, swiftly send over your CV to Izzi at Harnham by using the link below.
KEY TERMS
IBM, Coremetrics, Google Analytics, GA, Omniture, SiteCatalyst, Adobe Analytics, Analyst, Web, Digital, Online, Website, Financial Services, Finance, A/B, Test, Split, Multivariate, MVT, Tracking, Code, Tagging, Tags, Insight, Client, Agency, Management, Strategy, CRO, Conversion, Optimisation, Optimizely, Test and Target, Adobe Target, Maxymiser, VWO, Visual Website Optimiser, Tag Manager, Tag-manager, Tagging, Tag Management, Set Up Tags, Manage Tags, Manage Tagging, Managing Tags, Managing Tagging, Setting Up Tags, Analytics Tracking, Implement Tags, Implement Tagging, Tagging Implementation, Tag Implementation, Tracking Implementation, Analytics Implementation
To Apply for this Job Click Here
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