Remote Senior MarTech Engineer (React & AWS Architecture) with verification

About the job About Lumenalta: Lumenalta is at the intersection of marketing technology and software engineering, helping our clients harness the power of digital transformation. We design and implement scalable solutions that empower companies to maximize their marketing capabilities while delivering seamless digital experiences to their customers. We are looking for a Senior MarTech Engineer with expertise in the architecture and implementation of complex marketing platforms to join our team and take ownership of high-impact projects that support growth and performance. Role Overview As a Senior MarTech Engineer, you will lead the architecture, development, and deployment of MarTech platforms using React, Gatsby, and AWS, with a focus on optimizing performance and integrating multiple data and analytics platforms. You will work closely with cross-functional teams to design and implement solutions that support A/B testing, feature flagging, real-time monitoring, and customer data... management .The ideal candidate is an experienced technologist with a deep understanding of modern front-end development frameworks and a strong background in cloud infrastructure. You should be familiar with using LaunchDarkly for feature control, Sentry & Datadog for monitoring, and have a solid grasp of marketing analytics tools such as Perfanalytics or Freshpaint.io . Key Responsibilities • Architect MarTech Solutions: Design and implement MarTech architectures that leverage React and Gatsby hosted on AWS (e.g., S3) or Netlify, with Cloudflare as a CDN and security layer • Frontend Development: Build and optimize frontend applications using React and Gatsby, ensuring high performance, reliability, and scalability • Feature Control & A/B Testing: Implement feature flags and A/B testing strategies using LaunchDarkly to enable seamless experimentation and controlled rollout • Monitoring & Observability: Set up and maintain comprehensive monitoring using Sentry and Datadog to track application performance, errors, and user behaviour • Data Integration & Analytics: Integrate with marketing analytics and customer data platforms (CDPs) like Perfanalytics or Freshpaint.io, with a focus on server-side data flows to the platform endpoint • Cloud Infrastructure Management: Oversee deployment and infrastructure configuration on AWS, including S3, CloudFront, and serverless functions, ensuring efficient and secure delivery of web applications • Cross-functional collaboration: Collaborate with marketing, data science, and product teams to understand business needs and deliver technical solutions that enhance marketing and analytics capabilities • Continuous Improvement: Advocate for and implement best practices in code quality, performance optimization, and platform stability while mentoring junior engineers on the team Required Qualifications • 5+ years of experience in frontend development with a focus on React, Gatsby, and cloud-based architectures. • Strong proficiency in React.js, with hands-on experience using Gatsby for static site generation and server-side rendering (SSR). • Proven experience deploying and managing applications on AWS (S3, CloudFront) or Netlify, with Cloudflare for CDN and security services.Familiarity with LaunchDarkly or other feature management tools for implementing feature flags, A/B testing, and gradual rollouts. • Experience with Sentry and Datadog for application monitoring, error tracking, and performance analysis. • Proficiency in integrating and using marketing analytics and customer data platforms (e.g., Perfanalytics, Freshpaint.io) to drive data-driven decisions. • Strong understanding of server-side integrations and cloud-based data flows. • Excellent problem-solving skills and ability to translate complex business requirements into scalable technical solutions. • Strong communication skills with the ability to work effectively in cross-functional teams. Preferred Skills: • Experience with AWS Lambda or other serverless frameworks for building server-side applications • Understanding of web performance optimization techniques, including lazy loading, caching strategies, and bundle • Experience with additional MarTech tools like Google Analytics, Segment, or similar CDPs. • Familiarity with web security best practices and SEO considerations in Gatsby applications Apply Job!