Junior Full-Stack Engineer (Ai Code Evaluation)

This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a Junior Full-Stack Engineer (AI Code Evaluation) based in Spain.This is a unique opportunity for an early-career engineer to work at the intersection of full-stack development and artificial intelligence. In this role, you will contribute to improving AI systems that generate and evaluate code, helping ensure that AI outputs are reliable, well-structured, and production-ready. You will work closely with AI engineers and researchers in a fast-moving, experimental environment where learning and iteration are central. The role combines hands-on coding with analytical evaluation of AI-generated applications across frontend and backend systems. You will gain deep exposure to modern AI development workflows, debugging practices, and software evaluation methodologies. Ideal for someone curious about how AI builds software, this position offers strong technical growth and direct impact on next-generation developer tools.AccountabilitiesClone, run, and debug AI-generated full-stack and frontend applications to validate functionality and identify issues.Evaluate code quality, structure, readability, and adherence to design and engineering standards.Identify UI, layout, and logic inconsistencies in AI-generated outputs and document findings clearly and systematically.Collaborate with engineers to define, refine, and improve code evaluation frameworks and quality benchmarks.Support the development of reusable frontend components and contribute to internal tooling improvements.Assist with small feature implementations, UI adjustments, and iterative improvements to existing systems.Provide structured feedback that helps improve the performance and reliability of AI code generation models.RequirementsBasic to some professional experience in full-stack or frontend development.Strong understanding of JavaScript/TypeScript and familiarity with React, Node.js, or similar frameworks.Comfortable working with Python and modern web development technologies.Ability to read, run, and debug codebases across frontend and backend systems.Understanding of software engineering principles such as code quality, modularity, and maintainability.Strong analytical mindset with attention to detail and ability to evaluate technical outputs critically.Good communication skills with the ability to document issues clearly and collaborate with engineering teams.Familiarity with databases (e.g., Postgres, Redis) and cloud environments (e.g., AWS) is a plus.Curiosity about AI systems, code generation models, or software automation tools is highly valued.Proactive attitude, willingness to learn, and comfort working in a fast-paced, experimental environment.BenefitsOpportunity to work on cutting-edge AI systems shaping the future of software development.Hands-on exposure to AI-generated code evaluation and next-generation developer tools.Fast-paced environment with strong learning and career growth potential.Collaboration with experienced engineers and AI researchers.Direct impact on improving the quality and reliability of AI-powered development workflows.Exposure to modern full-stack technologies and scalable cloud-based architectures.Flexible and innovative work environment encouraging experimentation and initiative.Opportunity to build strong foundations in both software engineering and AI systems.How Jobgether works:We use anAI-powered matching processto ensure your application is reviewed quickly, objectively, and fairly against the role’s core requirements. Our system identifies the top-fitting candidates, and this shortlist is then shared directly with the hiring company. The final decision and next steps (interviews, assessments) are managed by their internal team.We appreciate your interest and wish you the best!Why Apply Through Jobgether?Data Privacy Notice:By submitting your application, you acknowledge that Jobgether will process your personal data to evaluate your candidacy and share relevant information with the hiring employer. This processing is based on legitimate interest and pre-contractual measures under applicable data protection laws (including GDPR). You may exercise your rights (access, rectification, erasure, objection) at any time.#LI-CL1We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses and identifying potential inconsistencies or verification signals in application materials based on available information. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us.

Basic to some professional experience in full-stack or frontend development. Strong understanding of JavaScript/TypeScript and familiarity with React, Node.js, or similar frameworks. Comfortable working with Python and modern web development technologies. Ability to read, run, and debug codebases across frontend and backend systems. Understanding of software engineering principles such as code quality, modularity, and maintainability. Strong analytical mindset with attention to detail and ability to evaluate technical outputs critically. Good communication skills with the ability to document issues clearly and collaborate with engineering teams. Familiarity with databases (e.g., Postgres, Redis) and cloud environments (e.g., AWS) is a plus. Curiosity about AI systems, code generation models, or software automation tools is highly valued. Proactive attitude, willingness to learn, and comfort working in a fast-paced, experimental environment.