Frontend Engineer (Webflow)

📍 Job Overview

Job Title: Frontend Engineer (Webflow)

Company: Ebury

Location: London, England, United Kingdom

Job Type: Full-Time

Category: Growth Engineering / Marketing Technology Operations

Date Posted: February 27, 2026

Experience Level: Mid-Level (3-5 years)

Remote Status: Hybrid (4 days in office, 1 day remote)

🚀 Role Summary

• This role is positioned at the forefront of growth engineering, focusing on building and optimizing Ebury's global marketing site as an "experimentation engine."

• The primary objective is to leverage Webflow, Webflow Optimize, and custom code to execute a high volume of AI-driven experiments and ML-powered personalizations.

• The engineer will bridge the gap between the marketing website and core product/analytics systems through JavaScript, APIs, and custom integrations.

• A strong emphasis is placed on cross-functional collaboration with Product, Marketing, and Data teams to drive conversion rate optimization (CRO).

📝 Enhancement Note: This role is a hybrid of frontend development and growth marketing operations, requiring a unique blend of technical skill, analytical thinking, and a business-oriented mindset. The focus on "experimentation engines" and AI/ML personalization indicates a sophisticated MarTech stack and a data-driven approach to marketing site development.

📈 Primary Responsibilities

• Develop, manage, and scale infrastructure for hundreds of concurrent A/B tests and personalization campaigns using Webflow Optimize.

• Extend Webflow’s capabilities by integrating custom JavaScript, APIs, and third-party services to connect the marketing site with Ebury’s core product and analytics infrastructure.

• Collaborate closely with Product, Marketing, and Data teams to define experiment hypotheses, instrument tracking, and analyze results to inform technical and strategic decisions.

• Design, build, and maintain reusable frontend components and design systems within Webflow to ensure brand consistency and enable rapid campaign launches by the marketing team.

• Instrument comprehensive tracking and analytics for all experiments and personalizations to provide clear, data-backed insights into user behavior and conversion metrics.

• Troubleshoot and optimize frontend performance to ensure a seamless user experience across all experiments and personalization efforts.

📝 Enhancement Note: While the role title is "Frontend Engineer," the responsibilities clearly indicate a focus on Growth Engineering and MarTech Operations. The emphasis on "experimentation engines," "AI-driven experiments," and "ML-powered personalizations" suggests a sophisticated MarTech stack and a data-driven approach to marketing site development, moving beyond traditional frontend tasks.

🎓 Skills & Qualifications

Education:

Experience:

• 3-5 years of professional web development experience with a mastery of core frontend technologies.

• Proven track record of building and deploying production-grade websites using Webflow, including extensive experience with custom code extensions, APIs, and complex integrations.

• Demonstrated experience in connecting frontend experiences with backend systems, managing APIs, authentication, and data flows.

Required Skills:

• Frontend Fundamentals: Advanced proficiency in JavaScript (including ES6+), TypeScript, HTML5, and CSS3.

• Webflow Expertise: Deep understanding of Webflow platform capabilities, including its limitations and how to extend it via custom code, embeds, and integrations.

• API Integration: Experience consuming and integrating with RESTful APIs to connect frontend applications with backend services.

• Data-Driven Decision Making: Ability to instrument user tracking (e.g., Google Analytics, Amplitude, Mixpanel), analyze A/B test results, and translate data into actionable insights and technical recommendations.

• Problem-Solving: Strong analytical and problem-solving skills to debug complex issues across different browsers and devices.

Preferred Skills:

• Growth Engineering/CRO: Prior experience in a Growth Engineering, Conversion Rate Optimization (CRO), or performance marketing role, with a focus on improving business KPIs.

• Experimentation Platforms: Familiarity with Webflow Optimize or other A/B testing and personalization tools such as Optimizely, VWO (Visual Website Optimizer), Google Optimize, or similar.

• MarTech Stack: Experience with marketing technology platforms, including marketing automation, CRM integrations, and analytics tools.

• B2B SaaS/Fintech: Background in the B2B SaaS or Fintech industries, understanding the unique user journeys and conversion paths.

• AI/ML Concepts: Basic understanding of Artificial Intelligence and Machine Learning concepts, particularly as they apply to personalization and user experience optimization.

• Fullstack Fundamentals: While primarily frontend, comfort with backend concepts and data flow is beneficial for integration tasks.

📝 Enhancement Note: The "Bonus Points" section strongly suggests the company is willing to train candidates on specific experimentation tools and AI/ML concepts, indicating that core frontend skills and Webflow expertise are the absolute priority. The emphasis on "moving business KPIs" over purely technical excellence is a key indicator for this role.

📊 Process & Systems Portfolio Requirements

Portfolio Essentials:

• Webflow Project Showcase: At least 2-3 production-ready websites built with Webflow, demonstrating proficiency in custom code integration, responsive design, and complex layouts.

• Experimentation Case Study: A detailed case study showcasing experience running A/B tests or personalization campaigns. This should include the hypothesis, implementation method, data collected, analysis of results, and the business impact (e.g., conversion rate improvement, engagement increase).

• API Integration Examples: Demonstrations or explanations of how you have integrated frontend applications with APIs, illustrating data flow and problem-solving.

• Performance Optimization Examples: Evidence of technical work that improved website speed, user experience, or conversion rates, supported by metrics.

Process Documentation:

• Workflow Design: Ability to articulate the process for designing, implementing, and analyzing growth experiments, including steps for hypothesis generation, setup, QA, deployment, and reporting.

• Component Development: Examples of creating reusable frontend components or design systems that improve development efficiency and maintain brand consistency, with an explanation of the development and adoption process.

• Measurement & Analysis: Clear documentation of how tracking is implemented for experiments and a structured approach to analyzing experiment results to derive actionable insights.

📝 Enhancement Note: Given the role's focus on "experimentation engines" and data-driven optimization, a portfolio that clearly demonstrates the ability to run tests, analyze data, and drive measurable business outcomes will be highly valued. Candidates should be prepared to walk through their portfolio projects, explaining the "why" and the impact, not just the "how."

💵 Compensation & Benefits

Salary Range:

Benefits:

• Hybrid Work Model: Flexibility with 4 days in the office and 1 day working from home, promoting work-life balance.

• Comprehensive Health Coverage: Likely includes private medical insurance, dental, and vision care.

• Generous Paid Time Off: Standard holiday allowance, potentially supplemented by additional days for specific circumstances.

• Pension Scheme: Contribution towards a company pension plan.

• Professional Development: Opportunities for training, workshops, and attending industry conferences, especially in areas like CRO and MarTech.

• Employee Networks: Access to active employee networks (Women's Network, LGBTQIA+ Network, Veterans Network) fostering community and support.

• Share Options/Bonus Potential: Possible eligibility for company share options or performance-based bonuses, reflecting the growth-oriented nature of the company.

Working Hours:

• Standard full-time working hours, generally around 40 hours per week, with flexibility often provided within the hybrid model. Core business hours will likely need to be covered for collaboration.

📝 Enhancement Note: The salary estimate is based on market research for similar mid-level engineering roles with specialized skill sets (Webflow, Growth) in London's tech and fintech sectors. Benefits are typical for established fintech companies in the UK, with a specific mention of employee networks that highlight Ebury's commitment to diversity and inclusion.

🎯 Team & Company Context

🏢 Company Culture

Industry: Fintech (Financial Technology). Ebury operates in a dynamic and rapidly evolving sector, focusing on cross-border payments and financial solutions for businesses.

Company Size: Over 1,700 employees globally, indicating a substantial, established, yet still agile organization. This size allows for significant impact and career progression while offering structured support.

Founded: 2009. Ebury has a decade+ of experience, demonstrating stability and a proven business model, reinforced by significant investment (£350 million from Banco Santander).

Team Structure:

• This role is embedded within the Marketing and Product teams, not a traditional, isolated engineering team. This signifies a highly collaborative, cross-functional environment.

• The engineer will report into a lead within Marketing or Growth, working closely with product managers, marketing specialists, and data analysts.

Methodology:

• Data-Driven Experimentation: The core methodology revolves around hypothesis-driven experimentation using A/B testing and AI/ML personalization to optimize conversion rates and user engagement.

• Agile Development: While not explicitly stated, the rapid pace of deploying experiments suggests an agile approach, prioritizing quick iteration and data feedback loops.

• Design Systems & Reusability: Emphasis on building scalable, consistent UIs through reusable components to enable fast campaign deployment by the marketing team.

Company Website: https://ebury.com/

📝 Enhancement Note: The company culture is described as collaborative, innovative, and fast-paced, with a strong emphasis on empowering employees and fostering diversity. The explicit mention of not being solely an engineering role, but embedded within Marketing and Product, is crucial for candidates to understand the team dynamics and collaboration expectations.

📈 Career & Growth Analysis

Operations Career Level: This is a mid-level Growth Engineering/MarTech Operations role. It sits at the intersection of technical development and business growth, offering a unique career path. It's not a pure backend or frontend role, but one that requires technical depth applied to immediate business impact.

Reporting Structure: The role is embedded within Marketing and Product. The engineer will likely report to a Head of Growth, Marketing Operations Manager, or a similar role, rather than a traditional Engineering Manager. This structure emphasizes direct contribution to marketing and product initiatives.

Operations Impact: The primary impact of this role is directly tied to driving business growth metrics, such as lead generation, conversion rates, user acquisition, and customer engagement on Ebury's global marketing platform. The work directly influences revenue and market penetration.

Growth Opportunities:

• Specialization in Growth Engineering: Deepen expertise in A/B testing, personalization, CRO, and MarTech stacks, becoming a subject matter expert in driving online conversion.

• Product Development Acumen: Develop a strong understanding of product strategy and how frontend development can directly influence product adoption and user experience, bridging the gap between marketing and core product.

• Leadership in MarTech: Potential to lead MarTech initiatives, manage experimentation platforms, and influence the technology choices for Ebury's marketing operations.

• Cross-Functional Expertise: Gain valuable experience working closely with diverse teams (Product, Marketing, Data), enhancing communication and strategic influence skills.

• Fintech Industry Knowledge: Build a strong understanding of the financial technology sector, a high-growth and influential industry.

📝 Enhancement Note: This role offers a distinct growth path away from traditional software engineering, focusing on the application of technical skills to business outcomes. The opportunity to become a specialist in a high-demand area like Growth Engineering within a leading fintech firm is a significant career advantage.

🌐 Work Environment

Office Type: Hybrid model (4 days in office, 1 day remote) with a London office. This suggests a modern workspace designed for collaboration and focused work.

Office Location(s): Ebury has a global presence, but this role is based in their London office. Specific details about the London office amenities and location within London would be beneficial for candidates.

Workspace Context:

• Collaborative Environment: The hybrid model and embedded team structure imply a collaborative workspace where in-office days are leveraged for team meetings, brainstorming, and cross-functional alignment.

• Technology-Rich: Access to modern development tools, a robust Webflow instance, and potentially advanced analytics and experimentation platforms.

• Cross-Functional Interaction: Frequent opportunities to interact with marketing specialists, product managers, and data analysts, fostering a dynamic and integrated work environment.

Work Schedule: Standard full-time hours, likely with some flexibility. The hybrid model allows for one remote day, providing autonomy, while the office days are for concentrated collaboration and team engagement.

📝 Enhancement Note: The hybrid model is a key feature, indicating a balance between in-person collaboration essential for cross-functional teams and the flexibility of remote work. Candidates should expect an environment that values both focused individual contribution and dynamic team interaction.

📄 Application & Portfolio Review Process

Interview Process:

• Initial Screening: A recruiter or hiring manager will likely conduct an initial call to assess basic qualifications, experience, and cultural fit.

• Technical Assessment: Expect a coding challenge or a deep dive into your Webflow and JavaScript experience. This might involve a take-home assignment or a live coding session focused on frontend fundamentals and Webflow capabilities.

• Portfolio Review & Case Study: A dedicated session to walk through your portfolio, focusing on specific Webflow projects and, critically, your growth experimentation case studies. Be prepared to discuss hypotheses, methodologies, data analysis, and business impact.

• Cross-Functional Interviews: Interviews with members of the Marketing and Product teams to assess collaboration skills, understanding of business objectives, and ability to translate technical solutions into business value.

• Final Interview: Potentially with a senior leader to discuss overall fit, strategic thinking, and long-term potential within the company.

Portfolio Review Tips:

• Highlight Webflow Mastery: Showcase projects that go beyond basic design, demonstrating complex integrations, custom code usage, and performance optimization within Webflow.

• Quantify Impact: For experimentation case studies, focus on metrics. Clearly articulate the problem, the solution (experiment), the data gathered, and the measurable business outcome (e.g., % increase in conversion, reduction in bounce rate).

• Explain the "Why": Be ready to explain the strategic thinking behind your Webflow designs and experimentation approaches. Why was a particular hypothesis chosen? What business goal was being addressed?

• Showcase Collaboration: If possible, use examples that illustrate effective collaboration with designers, marketers, or product managers.

• Technical Depth: Be prepared to discuss the technical challenges you faced and how you overcame them, especially concerning custom code, API integrations, and performance.

Challenge Preparation:

• Webflow & JavaScript Deep Dive: Brush up on advanced JavaScript concepts, DOM manipulation, API requests, and best practices for writing efficient, clean code within Webflow constraints.

• Experimentation Framework: Understand the typical lifecycle of an A/B test or personalization experiment: ideation, hypothesis formulation, implementation, QA, launch, analysis, and iteration.

• Data Interpretation: Practice analyzing sample datasets or experiment results. Be ready to discuss statistical significance, key metrics, and how to draw actionable insights.

• Business Acumen: Think about how frontend development and experimentation directly impact business KPIs in a B2B SaaS/Fintech context.

📝 Enhancement Note: The interview process is designed to test not just technical ability but also a strategic, data-driven mindset and strong collaboration skills, reflecting the unique nature of this Growth Engineering role. The portfolio review is likely to be a significant component.

🛠 Tools & Technology Stack

Primary Tools:

• Webflow: The core platform for website building and content management.

• Webflow Optimize: The A/B testing and personalization tool integrated with Webflow.

• JavaScript/TypeScript: For custom code, interactivity, and integrations.

• HTML/CSS: For structuring and styling web content.

Analytics & Reporting:

• Webflow Analytics: Basic site performance and traffic data.

• Third-Party Analytics Platforms: Likely Google Analytics, Amplitude, Mixpanel, or similar, for in-depth user behavior tracking and experiment analysis.

• Data Visualization Tools: Potentially Tableau, Power BI, or custom dashboards for reporting experiment results and trends.

CRM & Automation:

• CRM System: Integration with Ebury's CRM (e.g., Salesforce, HubSpot) for lead tracking and customer data.

• Marketing Automation Platforms: Potential integration with platforms for lead nurturing and campaign management.

• Integration Tools: Tools or custom scripts for connecting Webflow with other marketing and backend systems (e.g., Zapier, custom API connectors).

📝 Enhancement Note: The technology stack is heavily focused on Webflow and its ecosystem, augmented by essential frontend technologies and robust analytics tools for experimentation. The emphasis is on leveraging these tools to drive growth and conversion.

👥 Team Culture & Values

Operations Values:

• Data-Driven: Decisions are based on evidence and analysis, particularly through experimentation and user behavior tracking.

• Customer-Centric: Focus on understanding and improving the user experience to drive business goals.

• Collaborative: Strong emphasis on working together across different departments (Marketing, Product, Data) to achieve shared objectives.

• Agile & Iterative: Embracing a mindset of rapid deployment, learning from results, and continuous improvement.

• Impact-Oriented: Prioritizing work that demonstrably moves key business metrics and contributes to growth.

Collaboration Style:

• Cross-Functional Integration: This role is inherently collaborative, working closely with marketing strategists, product managers, and data analysts.

• Feedback-Driven: Openness to feedback from all stakeholders to refine experiments and improve website performance.

• Knowledge Sharing: Encouraging the sharing of experiment findings and best practices across teams to foster collective learning and growth.

📝 Enhancement Note: The company culture values a blend of technical expertise and business acumen, with a strong emphasis on collaboration and data-driven decision-making. The role's embedded nature means cultural alignment with marketing and product teams is crucial.

⚡ Challenges & Growth Opportunities

Challenges:

• Balancing Speed and Quality: The need to deploy experiments rapidly while maintaining code quality, brand consistency, and a stable user experience.

• Complex Integrations: Connecting Webflow with Ebury's broader analytics and product infrastructure can present technical hurdles.

• Experimentation at Scale: Managing hundreds of concurrent AI-driven experiments and personalizations requires robust systems and meticulous organization.

• Interpreting Ambiguous Data: Sometimes experiment results can be inconclusive or contradictory, requiring strong analytical skills to derive meaningful insights.

• Cross-Functional Alignment: Ensuring all stakeholders are aligned on experiment goals, tracking, and interpretation can be challenging.

Learning & Development Opportunities:

• Mastery of Growth Engineering: Deep dive into advanced A/B testing, personalization strategies, and conversion rate optimization techniques.

• AI/ML in Marketing: Gain practical experience with how AI and ML are applied to personalize user experiences in a real-world MarTech context.

• Fintech Industry Insights: Develop a comprehensive understanding of Ebury's business, the fintech landscape, and the unique challenges and opportunities within it.

• Advanced Webflow Techniques: Become an expert in pushing the boundaries of the Webflow platform through custom code and integrations.

• Data Analysis & Interpretation: Enhance skills in analyzing user data and experiment results to inform strategic decisions.

📝 Enhancement Note: The challenges presented are inherent to a fast-paced, data-driven growth environment. The opportunities for learning are significant, particularly for professionals looking to specialize in the high-demand field of growth engineering and MarTech.

💡 Interview Preparation

Strategy Questions:

• "Describe a time you used Webflow to build a complex feature or integration. What were the technical challenges and how did you overcome them?" (Focus on custom code, APIs, and problem-solving.)

• "Walk me through an A/B test you designed and executed. What was the hypothesis, what did you measure, what were the results, and what was the business impact?" (Emphasize data analysis, quantifiable results, and strategic thinking.)

• "How would you instrument tracking for a new feature on Ebury's website to measure its impact on conversion?" (Assess understanding of analytics setup and data collection.)

Company & Culture Questions:

• "Why Ebury, and why this role specifically?" (Research Ebury's mission in fintech, its growth, and align your interest with the role's focus on experimentation and growth.)

• "How do you balance the need for rapid deployment of experiments with maintaining code quality and brand consistency?" (Demonstrate an understanding of agile principles and pragmatic decision-making.)

• "Describe your experience working cross-functionally with marketing or product teams. How do you ensure alignment and effective communication?" (Highlight collaboration skills and ability to translate technical concepts for non-technical stakeholders.)

Portfolio Presentation Strategy:

• Quantify Everything: For each project, especially experiments, present clear metrics and ROI. Use visuals to illustrate data and impact.

• Tell a Story: Structure your case studies with a clear narrative: The Problem -> Your Solution (Hypothesis/Implementation) -> The Results -> The Learning/Next Steps.

• Focus on Webflow & Growth: Emphasize how your Webflow skills were used to achieve growth objectives. Highlight custom code, API integrations, and experimentation aspects.

• Be Prepared for Technical Deep Dives: Anticipate questions about your code, design choices, and the technical implementation of your Webflow projects.

• Show Enthusiasm for Experimentation: Convey your passion for data-driven optimization and continuous improvement.

📝 Enhancement Note: Interview preparation should heavily focus on demonstrating practical application of Webflow and JavaScript for growth, supported by quantifiable results and a clear understanding of business objectives. The ability to articulate the "why" behind technical decisions and collaborate effectively will be key.

📌 Application Steps

To apply for this Frontend Engineer (Webflow) position:

• Submit your application directly through the Ebury careers website link provided.

• Curate Your Portfolio: Select your strongest Webflow projects and, critically, prepare at least one detailed case study on a growth experiment or personalization initiative. Ensure your portfolio clearly showcases custom code usage, API integrations, and measurable business impact.

• Tailor Your Resume: Highlight your experience with Webflow, JavaScript/TypeScript, HTML, CSS, API integrations, and any experience with A/B testing, CRO, or MarTech. Use keywords from the job description, such as "experimentation engines," "Webflow Optimize," and "growth engineering."

• Prepare for Technical & Behavioral Questions: Practice articulating your experience with frontend development, Webflow, and your approach to data-driven decision-making. Be ready to discuss your collaborative style and understanding of business impact.

• Research Ebury: Familiarize yourself with Ebury’s fintech solutions, their market position, and their company culture. Understand how their business goals align with the role's focus on growth and experimentation.

⚠️ Important Notice: This enhanced job description includes AI-generated insights and operations industry-standard assumptions. All details should be verified directly with the hiring organization before making application decisions.

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