We are looking for a Senior/Lead Frontend Engineer to build highly scalable, dynamic, and programmatic email experiences at the intersection of frontend engineering and lifecycle marketing. You will develop personalized, data-heavy email templates and reusable components using React and Apache Velocity, consume internal and external APIs to drive conditional logic and second-level personalization, and partner with Design Systems to evolve internal tooling toward a modular, AI‑assisted self‑service architecture. The role requires mastery of responsive HTML/CSS email rendering across clients including Outlook, Gmail, and Apple Mail.

What you will do

- Build personalized, high‑complexity email templates and reusable product‑specific components using React and Apache Velocity by consuming data from APIs;
- Translate Figma designs into modular, responsive, and reusable code components within email platforms;
- Create, optimize, and segment lifecycle marketing campaign audiences using complex SQL queries and custom APIs;
- Partner with Design Systems to build scalable code frameworks within internal email tooling that pull data from internal sources;
- Deliver dynamically populated email templates powered by live API data and Apache Velocity;
- Ensure fully validated A/B testing setups with complete data and measurement tracking integrity.

Must haves

- Bachelor’s degree in Computer Science, Engineering,



or a related field with 4+ years of related experience, or a Master’s degree with 3+ years of experience;
- Proven track record in front‑end development;
- Strong front‑end development experience using React, TypeScript, and JavaScript;
- Experience integrating user interfaces with backend platforms;
- Strong command of Apache Velocity (VTL), including macros such as #set, #if, #foreach, and #define;
- Experience composing Velocity components and macros into complete email templates;
- Mastery of responsive and accessible HTML and CSS for email clients;
- Proven experience integrating with APIs and formatting data into conditional, dynamic email templates;
- Experience authoring templates for 100+ locales with localized copy and dynamic personalization;
- Experience with Git, command‑line tools, and modern IDEs;
- Experience translating Figma designs into modular code components;
- Experience with AWS infrastructure fundamentals;
- Experience with Infrastructure as Code tools such as Terraform and CI/CD pipelines such as GitLab CI;
- Upper‑intermediate English level.

Nice to haves

- Prior experience in email development;
- Practical experience using AI developer tools such as Cursor, Windsurf, or Claude;
- Prior exposure to component internationalization (i18n) and localization frameworks.

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📌 Senior Frontend Engineer (Argentina)
🏢 Agileengine
📍 Argentina