Remote Elixir Developer

Salary: £40,000 - 80,000 per year

Requirements

• Proven experience in building and maintaining Elixir-based web applications, including knowledge of Phoenix
• Strong understanding of SQL, including profiling and building efficient queries
• Solid problem-solving skills and the ability to troubleshoot complex systems
• BS/MS in Computer Science or equivalent industry experience
• Proficiency in English to communicate effectively with the product team
• Bonus: familiarity with Absinthe (GraphQL) and Oban (job processing)
• Bonus: knowledge of DevOps practices and deployment pipelines
• Bonus: experience working in SaaS or FinTech
• Bonus: experience with AI/ML/LLMs, agentic architectures, workflow optimisation, and prompt engineering

Responsibilities

• Develop and maintain scalable, efficient, and high-quality Elixir web applications
• Design, optimize, and troubleshoot SQL queries and performance issues
• Collaborate with cross-functional teams to design and implement new features and improvements
• Write clean, maintainable, and testable code adhering to industry best practices
• Contribute to architectural decisions and optimize system performance

Technologies

• AI
• DevOps
• Elixir
• GraphQL
• Support
• Phoenix
• SQL
• Web
• LESS

More

We are proSapient, a company that helps consulting and private equity firms discover the knowledge they need to make smarter decisions. We support our clients by connecting them with industry experts through interviews or surveys, curating that knowledge in our market-leading software platform, and helping them surface knowledge already within their organizations through expansive knowledge management. Our Product & Engineering team works across multiple locations, and we are building a vibrant Engineering Hub in Lisbon, Portugal. Being based in or relocating to Portugal is a big plus. We work in a hybrid setup, combining flexibility with in-person collaboration, and we offer tenure gifts such as vouchers, extra holiday, and sabbaticals, along with health insurance, enhanced maternity and paternity pay, and regular corporate events including quarterly gatherings and annual winter and summer parties. We are committed to building an inclusive workplace and encourage candidates to apply even if they do not meet every requirement.

last updated 28 week of 2026