We''re looking for a Senior Software Engineer to join a growing team building smart, scalable tools used by professionals across a range of industries. You''ll work onsite in London, helping shape robust backend services and responsive user experiences using React, NextJS and NodeJS. What You''ll DoBuild and maintain scalable, secure applications, modern architectural patternsWrite clean, test-driven code with a focus on performance and usabilityCollaborate across teams to deliver iterative improvementsLead on innovation and continuous delivery best practicesSupport and mentor others while staying hands-on with the techWhat We''re Looking ForProven experience working with ReactStrong understanding of microservices, CI/CD, and DevOps practicesConfident writing performant frontend codeAgile mindset with excellent communication skillsEnthusiastic about solving problems and sharing knowledgeNice to Have:Experience with Drupal 7Familiarity with serverless architectures, quality engineering, or modern frontend frameworks INDLON49904NBPortfolio Payroll Ltd is acting as an Employment Agency in relation to this vacancy.