Senior Full Stack Engineer

Senior Full Stack Engineer Location: Remote Employment Type: Full-time About the Role Elad Systems is hiring a Senior Full Stack Engineer to join our team and work remotely for one of our clients. The client is an Israeli startup in the Video AI domain, developing advanced technologies for video analysis, processing, and automation. Its core product enables publishers, news organizations, and media companies to automatically generate short clips from long-form videos, identify key moments, and enhance viewer engagement and user experience. This is a backend-oriented role (approximately 80% backend development), including leading the design, development, and scaling of the company’s core products. Responsibilities Lead requirements from early-stage definition through design, implementation, integration, testing, and deployment Develop high-quality backend code primarily in Ruby on Rails and Python Develop high-quality frontend code using Vanilla JavaScript (ES6), CSS, HTML, React, and Vue Optimize frontend performance and Core Web Vitals Own the full development lifecycle — from inception to production Take full ownership of all engineering aspects within your domain Serve as a focal point for code quality, architecture, design, testing, and performance Work with a modern tech stack including Postgres, Kafka, Spark, Redis, Elasticsearch, InfluxDB, Celery, Iceberg, and more B2B work arrangement in place and ability to issue invoices Interest in a long-term position and commitment to long-term engagement Requirements Bachelor’s degree in Computer Science or a related field (or equivalent experience) 8+ years of relevant software development experience Strong backend development experience (Ruby on Rails, Python, Java) At least 4 years of frontend development experience with a strong emphasis on Vanilla JavaScript (ES6), CSS, and HTML At least 2 years of experience with React or equivalent frameworks Proven experience building high-scale systems Deep understanding of concurrency, performance optimization, and database design Experience using AI-driven development tools (e.g., Claude, Cursor, etc.) B2B work arrangement in place and ability to issue invoices Interest in a long-term position and commitment to long-term engagement Advantages Experience in monetization systems Experience in Big Data environments Experience in cloud environments, preferably AWS Experience in Video or Video AI domains