Salary: £60,000 - 80,000 per year Requirements: Previous experience with cloud-hosted internet platform solutions Strong understanding of technology from infrastructure and operations to data architectures Experience with modern web technologies, rapid deploy, automated scaling, and high volume, high availability distributed systems Experience with Elixir Experience with the Phoenix Framework and Phoenix LiveView Geospatial and/or Maplibre experience (beneficial) Significant demonstrable development experience in an Agile environment Demonstrable ability to improve quality Ability to communicate to a wide technical audience Ability to create design documentation Ability to adhere to company-wide design principles and best practices Responsibilities: Develop highly stable, secure, scalable, and extensible platforms for web delivered products Work across the stack, from core domain logic and APIs to interactive LiveView-driven frontends Influence architecture, technical direction, and engineering culture Embrace best-practice software development processes Promote SRTs values of Innovation, Quality, Responsibility, Teamwork, and Ambition Collaborate with the Product Management team, following Agile practices to deliver high-performing products and services Technologies: Cloud Elixir PLC Phoenix Security Web Hardware More: At SRT Marine Systems plc, we are a market leader in international marine surveillance technology based in the UK, making a global impact in maritime domain awareness. Our work enhances security, safety, and sustainability in the marine sector. We are looking for a Senior Elixir Developer to join our innovative and ambitious team, contributing to the development of mission-critical maritime surveillance systems. We offer a flexible hybrid working environment, a competitive salary, matched pension contributions, 25 days annual leave (rising to 28 with service), private health care, and development and training programs. We pride ourselves on being an equal opportunity employer and are committed to creating an inclusive environment for all employees. last updated 9 week of 2026