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DIGITAL/WEB SPECIALIST

£40,000 – £50,000

LONDON – HYBRID 4 DAYS A WEEK

*Please note, this company is unable to sponsor, and you must be a UK resident to apply*

THE COMPANY

The company owns a leading global group of premium private schools, known for its dynamic growth and commitment to excellence. With a strong presence across multiple countries, the group combines the development of new schools with the acquisition and integration of high-performing institutions. This creates a fast-paced, ambitious environment ideal for digital professionals looking to contribute to a world-class education network.

THE ROLE

The client has unified its school websites onto a single Drupal-based platform and is now entering a phase of optimisation and innovation. They’re looking for a Digital Specialist with a strong technical and analytical mindset to lead the platform’s ongoing evolution. This hands-on role blends web product ownership with expertise in CRO, SEO, UX, and AI automation, driving a user-focused, high-performance digital experience. It’s a strategic position suited to someone who thrives on data, experimentation, and delivering measurable results.

SKILLS + EXPERIENCE

• Proven experience managing large-scale web platforms (Drupal preferred)
• Strong technical capability and a data-first mindset
• Skilled in CRO testing and web performance analytics
• Deep understanding of SEO fundamentals and user behaviour
• Excellent communication skills – particularly in written English
• Experienced managing small teams and collaborating across functions
• Comfortable in a fast-paced, lean environment
• Experience with AI tools or automation is a bonus
• Outcome-driven, with the ability to translate insights into actions

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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Full Stack Web Applications System Engineer

Remote | HQ in Texas

$150,000-$170,000 base salary

THE COMPANY

Headquartered in Texas, this forward-thinking company combines computer vision, AI, and automation to bring intelligence and precision to industrial quality systems. As their product and customer base expand, they’re growing their engineering team with a focus on technical excellence and ownership.

THE ROLE

As a Full Stack Web Applications System Engineer, you’ll be responsible for the entire lifecycle of web applications-from frontend UI and backend APIs to CI/CD pipelines and production support. In this role, full stack means truly full stack-you’ll architect interfaces, write Python services, manage deployments, and help guide product direction alongside the core engineering team.

SKILLS & EXPERIENCE

• 7+ years of professional experience in full-stack web application development
• Proven ability to handle everything from UI to backend to infrastructure-full ownership of application lifecycle
• Strong proficiency in Vue.js, Python, TypeScript, and Node.js
• Experience designing secure APIs, implementing robust UI architectures, and deploying applications in cloud environments
• Familiarity with AWS, Linux, Docker, and Kubernetes (bonus)
• Hands-on experience with CI/CD pipelines, DevOps tools, and production system reliability

THE BENEFITS

• $150,000-$170,000 USD salary
• 100% remote – Work from anywhere in the U.S.
• High-impact role with ownership and decision-making authority across the full application lifecycle
• Collaborate with a high-caliber technical team in a fast-moving, product-focused environment

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Analytics Engineer – Permanent

London – Hybrid Working

£60k – £70k + Benefits + Equity

We’re working with a high-growth e-commerce brand that is scaling its data platform. They’re seeking an Analytics Engineer to join their team and build robust, scalable pipelines and models to power decision-making across the business. This is a permanent role and you will be reporting into the Head of Data. You would be working alongside other Analytics Engineers and be supported by the wider team.

Core Requirements:

• Strong SQL skills for data modelling and transformation
• Proven experience building and managing ETL pipelines in production
• Hands-on experience with Snowflake and dbt
• Proven experience as an Analytics Engineer
• Experience working in a cross-functional environment with stakeholders
• Excellent communication skills

What Will Make You Stand Out:

• Experience with ThoughtSpot, Looker, or similar BI tools
• Proficiency in Python for scripting, automation, and data workflows

If you would like to be considered for this, please apply. To follow up please email or message me on LinkedIn.

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CREDIT RISK MANAGER/SENIOR MANAGER

£60-85,000 dependent on level

REMOTE (ONCE PER MONTH TRAVEL TO MIDLANDS)

THE COMPANY

This lending business are in a rapid period of growth and have very ambitious plans for the next few years. They are looking for an experienced candidate to take the lead in defining their analytics growth and strategic direction for the future, offering the chance to make a real impact in a smaller business.

THE ROLE

• Re-developing and enhancing statistical models, specifically scorecards, to drive insight into the customer journey and enhance business performance
• Design credit risk strategies and provide support on wider lending strategies including optimization and analysis
• Provide wider ad hoc analysis and insight into customer trends and monitor the ongoing performance of credit strategies and portfolios
• Working with external stakeholders and collaborating with wider business areas to communicate improvements and really make an impact

YOUR SKILLS AND EXPERIENCE

• Prior exposure to Credit Bureau data is essential
• Exposure to scorecard models is an essential requirement
• Previous experience in end-to-end scorecard development is highly desirable
• Strong SAS, SQL, Python or R is essential
• Prior management experience essential

SALARY AND BENEFITS

• Base salary – 60-85k depending on level
• Private Medical care
• Pension contribution scheme
• 25 days holiday

HOW TO APPLY

Please register your interest by sending your CV to Rosie Walsh through the ‘Apply’ link

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CREDIT RISK MANAGER

NOTTINGHAM- ONCE A MONTH

SALARY UP TO £75,000

Join a leading lender where you will play a pivotal role in shaping and leading the credit risk strategies.

THE ROLE

• Lead the development, execution, and refinement of credit risk strategies across acquisition, account management, and decision-making processes.
• Guide and mentor a high-performing credit risk team, promoting a culture focused on growth, collaboration, and operational excellence.
• Own and continuously improve the credit risk policy framework, decision models, and governance structures to ensure regulatory compliance and audit readiness.
• Provide executive leadership with clear, data-driven insights into portfolio performance and emerging risk trends.
• Build and maintain statistical models (e.g., probability of default models, bureau-based and custom scorecards) to support credit underwriting and customer segmentation.
• Utilize credit bureau data (e.g., TransUnion, Experian) to inform, enhance, and fine-tune risk strategies.
• Perform in-depth exploratory data analysis and ensure high data quality through comprehensive cleaning and validation processes.
• Design and manage A/B testing frameworks to assess and optimize the performance of credit risk strategies.

REQUIREMENTS

• Experience with credit strategy implementation
• Experience building scorecards
• SAS/SQL/ Python
• Experience with credit bureau data

HOW TO APPLY

Please send CVs below or

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Founding Full-Stack Engineer (React + Rust)

AI Infrastructure – Open Source

$200,000 – $300,000 + Equity (~1%)

Onsite – Williamsburg, NYC

Join a deeply technical AI startup as a founding engineer, building the open-source infrastructure powering the future of LLM optimization. With world-class backers and a team of Stanford, Oxford, and CMU alumni, this is an opportunity to own critical product features from day one and help shape a category-defining developer platform.

THE COMPANY

This stealth-mode startup is building an open-source platform that helps teams optimize LLMs in production – think observability, inference routing, and programmatic evaluation in one powerful feedback loop. The company is backed by investors behind OpenAI, ClickHouse, and Anthropic, and has years of runway to support deep open-source investment.

THE ROLE

As Founding Full-Stack Engineer, you will:

• Lead the build of the observability dashboard and core user-facing tools
• Work in React and Rust to craft high-performance, developer-first experiences
• Collaborate directly with the CEO, CTO, and ML researchers to shape product and infrastructure
• Contribute open source code that impacts the broader LLM/devtools ecosystem
• Influence product direction and engineering culture as a true early team member

YOUR SKILLS & EXPERIENCE

• Strong technical foundation with experience driving 0→1 product builds
• Proficiency in React and Rust (must-have)
• Experience designing technical UIs for engineers/ML users
• Track record of OSS contributions or a strong GitHub presence is a plus
• Passionate about developer experience and the craft of software engineering
• Open to H1B or O1 transfer for exceptional candidates

BENEFITS

• $200K-$300K base + meaningful equity (~1%)
• Work alongside an all-technical founding team from Stanford, Oxford, CMU, AWS, and Meta
• Learn from leaders in OSS (Radix UI, RemixJS), Rust, and ML research (NeurIPS, Meta AI)
• Contribute to open-source every day
• Onsite collaboration in a top-tier Brooklyn workspace

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Staff Frontend Engineer
Location: Remote (UK-based)
Salary: Up to £115,000

We’re working with our client, a fast-growing SaaS company founded by serial entrepreneurs, to recruit a Staff Frontend Engineer. Their platform is transforming how leading professional services firms interact with complex data-think Figma for financial, legal, and consulting workflows.

Role Overview:
This is a high-impact, hands-on role where you’ll lead the development of scalable, performant features across the stack. You’ll work directly with the CTO and CEO, contributing to architectural decisions and driving innovation. This position is ideal for someone who wants deep technical ownership without people management responsibilities.

Key Responsibilities:

• Build and maintain features using TypeScript, and Vue.js (or React/Angular/Next.js)
• Own architecture and design of key systems and applications
• Develop scalable, secure, and maintainable solutions
• Collaborate closely with senior leadership on high-priority projects

Requirements:

• Essential:
  • Expert-level experience in full-stack development (Mainly focused on the frontend)
  • Strong knowledge of modern JavaScript frameworks
  • Full Stack Experience (Using Node.js, Python or C#)
  • Track record of architecting and delivering complex systems
  • Ability to work autonomously in a fast-moving environment
  • Background in enterprise SaaS product development

• Desirable:
  • Experience with Azure and Docker
  • Familiarity with data visualisation or diagramming tools
  • Exposure to AI-enhanced or real-time user interfaces

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Salesforce Architect – Media & Entertainment
Location: Hybrid

We’re seeking a dynamic Salesforce Architect on a Contrat to lead the strategic direction and technical evolution of our Salesforce platform at a fast-paced media company headquartered in New York City. This role will be instrumental in designing scalable solutions that support complex business operations across Sales, Marketing, and Audience Engagement, while also ensuring seamless integrations across our media platforms and enterprise systems.

The ideal candidate will collaborate across departments-including Content, Ad Sales, Digital Products, and Subscriptions-to drive innovation and deliver a connected customer journey across all touchpoints. This position also serves as the primary Salesforce liaison for key business units and will oversee daily platform operations.

Key Responsibilities:

• Architectural Strategy & Leadership:
  Define and lead the architectural vision for the Salesforce platform, supporting teams across Sales, Marketing, Customer Service, and Audience Development.

• Platform Performance & Reliability:
  Ensure the Salesforce ecosystem is scalable, secure, and optimized for high performance. Address technical challenges and proactively improve platform stability.

• Solution Design & Roadmap Development:
  Create and manage a forward-looking Salesforce roadmap. Design tailored solutions including custom applications, media-specific integrations, data flows, and audience segmentation tools-aligning with both immediate business needs and long-term digital strategy.

• Stakeholder Engagement:
  Partner with cross-functional business leaders to translate strategic goals into technical requirements. Lead prioritization efforts and manage solution delivery while adhering to enterprise architecture standards and timelines.

To Apply for this Job Click Here

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Salesforce Architect – Financial Services – Contract
Location: Hybrid (3 days on-site in New York City, 2 days remote)

A leading financial services firm in New York City is seeking an experienced Salesforce Architect to define and drive the technical and functional roadmap for Salesforce across key business units, including Wealth Management, Institutional Sales, Marketing, and Client Services.

This role is critical to shaping scalable, secure, and regulatory-compliant Salesforce solutions that enhance client engagement, streamline internal operations, and support end-to-end lifecycle management. The Salesforce Architect will act as a strategic partner to business and technology leaders, while also overseeing day-to-day platform operations and third-party vendors.

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Director of Machine Learning Engineering

AdTech | Remote – US Based | $220,000 – $260,000 + Bonus + Equity

Are you a hands-on leader who thrives at the intersection of machine learning systems, real-time infrastructure, and business impact?

We’re working with one of the fastest-growing AI-led AdTech platforms in the industry. Recently recognized for award-winning innovation in programmatic advertising, this company is redefining how brands apply custom AI to optimize media buying across major DSPs, Meta, and YouTube.

They’re now seeking a Director of Machine Learning Engineering to lead their end-to-end ML systems – from architecture to deployment – while mentoring a team of senior MLEs and collaborating closely with engineering and product.

If you’re passionate about building robust, scalable ML pipelines and shaping the future of real-time decisioning, this role is for you.

THE ROLE

As Director of Machine Learning Engineering, you’ll:

• Own the architecture, deployment, and performance of custom ML systems used for large-scale ad bidding and decisioning.

• Lead the design and optimization of low-latency pipelines built with Databricks, PySpark, Kubernetes, and Rust.

• Oversee LLM and neural network-based models, ensuring they are production-ready and aligned with business strategy.

• Collaborate with the Engineering Architect to build resilient, scalable ML infrastructure.

• Mentor and manage a growing team of 3+ MLEs, fostering high standards in ML software engineering.

• Guide adoption of emerging technologies like LoRA, quantization, vector stores, and Rust microservices for model serving.

• Partner cross-functionally to translate business objectives into impactful AI solutions.

SKILLS & EXPERIENCE

To be successful, you will need:

• 8+ years of experience in machine learning engineering, with 3+ years in leadership roles.

• Deep expertise in building real-time ML systems with Kubernetes, Rust, PySpark, Databricks, and deep learning frameworks like PyTorch or TensorFlow.

• A proven track record of deploying LLMs and neural networks at scale.

• Mastery of MLOps tools including MLflow, Prometheus, Grafana, Airflow, etc.

• Strong cloud and data engineering experience (especially AWS and Databricks).

• A hands-on mindset with the ability to influence technical architecture and direction.

• Exceptional collaboration and communication skills across engineering and executive stakeholders.

• Experience in AdTech or performance marketing is a strong advantage.

BENEFITS

• Highly competitive base + performance bonuses + equity

• Unlimited PTO, 11 company holidays, and year-end closure

• Full medical, dental, vision & 401k options

• Fully remote role within the US

• Opportunity to shape a best-in-class AI platform used by global brands

• Work in a transparent, high-ownership culture that values innovation and technical excellence

Interested in leading at the cutting edge of ML infrastructure in AdTech?

Apply now to connect with a consultant at Harnham.

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Director of Machine Learning
NYC

An award-winning AI company at the forefront of real-time programmatic technology, delivering impactful, data-driven solutions for global brands.

Mission:

We’re looking for a Senior Machine Learning Engineering Leader to own the ML infrastructure and guide the technical strategy. You will lead a team of engineers, ensure scalable, fault-tolerant ML pipelines, and collaborate with product and engineering teams to align ML systems with business goals.

Desired Profile:

• Minimum 8 years in ML engineering, with at least 3 years in leadership roles.

• Hands-on experience with cloud platforms (AWS, Databricks), MLOps tools (MLflow, Prometheus), and CI/CD pipelines.

• Proficiency with deploying low-latency ML solutions and advanced architectures, including LLMs, vector stores, and Rust microservices.

• Strong stakeholder communication and ability to mentor and grow engineering talent.

• Background in advertising or performance marketing a bonus.

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