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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Senior Software Engineer, Javascript - **Company:** Agileengine, Llc. - **Location:** Barcelona, Spain (Remote available) - **Contract:** Permanent contract - **Skills:** Java (Programming Language), JavaScript (Programming Language), Artificial Intelligence, Amazon Web Services, Audit Trail, Code Review, Relational Databases, Software Debugging, Python (Programming Language), Release Management, Software Engineering, TypeScript, ReactJS, Multi-Agent Systems, Spring-boot, Code Restructuring - **Published:** September 26, 2026 - **Apply:** https://www.buscojobs.com.es/senior-software-engineer-javascript-en-barcelona-ID-372878887 ## About the Role 5+ years of experience in a software product development environment . ~ Strong proficiency with Java and Spring Boot . ~ Strong proficiency with Relational Databases . ~ Demonstrated ability to use AI coding agents as productive engineering collaborators across an application codebase. ~ Strong judgment in reviewing, testing, securing, and improving agent?generated code rather than accepting outputs without verification. ~ Senior?level experience building and operating production software systems. ~ Experience using agents to support coding, code review, testing, release management, or incident response. ~ Experience with TypeScript . ~ Experience with Python . ~ Experience with infrastructure on AWS . ~ Strong understanding of testing, observability, security, permissions, and failure recovery. ## Description **** company that creates award-winning software for Fortune 500 brands and trailblazing startups across 17+ industries.We rank among the leaders in areas like application development and AI/ML, and our people-first culture has earned us multiple Best Place to Work awards.ABOUT THE ROLE We are looking for a Senior Software Engineer to help define an agentic-first approach to software development.This person designs agentic workflows using Java, Spring Boot, React, and AI orchestration patterns, turning successful experiments into production systems.Design and build agentic workflows that coordinate tools, services, data, and human approvals.Use agentic coding tools throughout the development lifecycle, including planning, implementation, testing, debugging, refactoring, code review, and documentation.Integrate agents into software development, testing, deployment, support, and operational workflows.Design agentic applications around real user needs, including intuitive experiences, reliable workflows, permissions, audit trails, and meaningful error handling.Move agentic solutions from prototype to production by addressing performance, scalability, security, monitoring, evaluation, cost, and ongoing maintenance.5+ years of experience in a software product development environment .~ Strong proficiency with Java and Spring Boot .~ Strong proficiency with Relational Databases .~ Demonstrated ability to use AI coding agents as productive engineering collaborators across an application codebase.~ Strong judgment in reviewing, testing, securing, and improving agent?generated code rather than accepting outputs without verification.~ Senior?level experience building and operating production software systems.~ Experience using agents to support coding, code review, testing, release management, or incident response.~ Experience with TypeScript .~ Experience with Python .~ Experience with infrastructure on AWS .~ Strong understanding of testing, observability, security, permissions, and failure recovery.~ We match your ever?growing skills, talent, and contributions with competitive USD?based compensation and budgets for education, fitness, and team activities.A selection of exciting projects : Join projects with modern solutions development and top?tier clients that include Fortune 500 enterprises and leading product brands.Flextime : Tailor your schedule for an optimal work?life balance, by having the options of working from home and going to the office - whatever makes you the happiest and most productive.If it's a match, you'll receive an offer.# ## Related Videos - [Boost your coding productivity with Github Copilot Agent](https://www.wearedevelopers.com/videos/1542-boost-your-coding-productivity-with-github-copilot-agent) - [Resilient by Design: Building Robust Architectures in High-Stakes Financial Systems](https://www.wearedevelopers.com/videos/2106-resilient-by-design-building-robust-architectures-in-high-stakes-financial-systems) - [Watch Tests Go Brrrr! 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