Senior Software Engineer

• Develop secure, performance optimized and scalable code that is well tested and documented
• Provide ongoing support, maintenance, and debugging for legacy applications in production
• Collaborate with development and DevOps teams to ensure stable deployment and operation of all systems
• Take ownership of the product and mentor junior staff

This role supports Xpansiv's platform that accelerates the global energy transition by enabling transparent environmental claims and connecting diverse energy transition markets worldwide.

• B.S./M.S. in Computer Science or equivalent relevant experience
• 5+ years experience building web applications
• Strong proficiency with .NET Framework, modern .NET, Entity Framework, ASP.NET Web Forms, and ASP.NET Web API
• Experience with PHP, JavaScript, SQL Server, PostgreSQL, and mentoring/leading development teams

Compensation varies by region with London salary range of £85,000-£100,000. Xpansiv cultivates diversity, celebrates individuality, and believes unique perspectives are key to collective success in building trust and transparency toward a net-zero future.

Xpansiv operates an integrated, open, and neutral market platform designed to accelerate the global energy transition by providing access to environmental commodities markets and enabling transparent environmental claims.