Freelance | 8–20 hrs/week | Remote (EU/UK)Are you a software engineer who wants to apply your technical expertise in a new way?Do you have 8 to 20 hours per week available alongside your current role or freelance work?We are looking for experienced software engineers based in the EU or UK to help improve advanced AI systems.What you’ll be doingWe are 10x.team, a platform for fractional and freelance professionals. We partner with leading AI labs to improve large AI systems.Your role is practical and high impact. You will:Review and refine AI generated responses related to software development and system designEvaluate outputs for technical correctness, code quality and architectural soundnessDraft realistic engineering scenarios such as API design, distributed systems challenges, performance optimisation, refactoring strategies or debugging complex issuesCreate variations of the same scenario from different perspectives such as backend engineer, frontend engineer, DevOps engineer, architect or engineering managerIdentify weaknesses in logic, edge case handling, scalability assumptions or security considerationsIn simple terms:You will assess and improve AI generated content to ensure it reflects real world engineering practice, clean code principles and robust system design.This is not hands on product development. Instead of building a specific application, you will help improve how AI systems understand and reason about software engineering at scale.Your input directly improves how AI performs on programming, architecture and technical problem solving topics.Who this is forYou are:A software engineer, developer, software architect or senior technical contributorBased in the EU or UKWith several years of professional software development experienceExperienced in areas such as backend or frontend development, cloud infrastructure, distributed systems, DevOps, security or system architectureComfortable identifying flawed code logic, scalability issues and unrealistic technical assumptionsAvailable 8 to 20 hours per weekAble to start in the coming weeksThis role is fully remote and flexible.It works well alongside your existing professional commitments.Why joinFlexible hoursFully remoteApply your software engineering expertise in the field of AIContribute to improving widely used AI systemsClear scope and structured onboardingPotential for longer term collaboration based on performanceScreening processThe process is straightforward and fully guided.After applying, you will complete:A short AI based interviewA brief technical evaluation focused on engineering reasoningA compliance check to verify your identity and professional backgroundIf approved, you will be onboarded and can start shortly after.#LI-AS1