Node.js Jobs in Valencia.
All active Node.js roles based in Valencia.
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Backend Team Lead (Node.js) (RIKI)
BrainRocket is a global company creating end-to-end tech products for clients across Fintech, iGaming, and Marketing. Young, ambitious, and unstoppable, we've already taken Cyprus, Malta, Portugal, Poland, and Serbia by storm. Our BRO team consists of 1,300 bright minds creating innovative ideas and products. We don’t follow formats. We shape them. We build what works, launch it fast, and make sure it hits.
❗️ Important: This is an On-Site Position in Spain❗️
This is an on-site position based at our office in Spain, Valencia. Remote or hybrid arrangements are not available once you join the team.
Are you ready for an international move? We are looking for candidates who are either already based in Lisbon or are eager to relocate to Portugal.
To make your transition smooth, we provide full relocation support and visa sponsorship for successful international candidates ❗️
⚡ We are looking for an experienced Team Lead Backend Developer (Node.js) to join our development teams in Valencia and lead the backend technologies of our systems. This is a highly hands-on role: you will be actively writing and reviewing code, shaping architecture, and driving technical excellence while mentoring your team.
✅ Responsibilities:
• Lead, mentor, and manage backend engineers through regular one-to-one sessions, feedback, performance evaluations, and individual development plans.
• Actively write, review, and refactor code and directly contribute to building and improving our systems.
• Participate in agile ceremonies (Scrum/Kanban) to ensure team alignment and adherence to agile best practices.
• Enhance system quality by resolving technical debt, optimizing architecture and flows, and performing data cleaning and restructuring.
• Design solutions and make key technical decisions for changes and enhancements.
• Assign tasks and balance workloads within the team to ensure efficient delivery.
• Collaborate with Engineering Managers to adopt the latest technologies and drive company-wide engineering initiatives.
• Document domain knowledge, improve engineering standards, and contribute to initiatives that enhance the broader engineering organization.
✅ Requirements:
• Bachelor’s, Master’s, or higher degree in Computer Engineering, Computer Science, Applied Mathematics, or a related field.
• 8+ years of professional backend development experience.
• 3+ years of experience in leadership positions.
• Strong experience with Node.js and modern web development.
• Knowledge of Kubernetes, containers, infrastructure, system design, SQL, and NoSQL databases.
• Experience with RESTful APIs, message brokers, 3rd party integrations, and secure development practices.
• Familiarity with CI/CD, microservices, cloud-based development, and test-driven development is a plus.
• Deep understanding of data structures, coding patterns, and algorithms.
• Experience with agile methodologies, ideally Scrum.
• Excellent problem-solving, diagnostic, and troubleshooting skills.
• Strong leadership, organizational, and mentoring abilities.
• Upper-intermediate or advanced English.
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Engineering Manager
BrainRocket is a global company creating end-to-end tech products for clients across Fintech, iGaming, and Marketing. Young, ambitious, and unstoppable, we've already taken Cyprus, Malta, Portugal, Poland, and Serbia by storm. Our BRO team consists of 1,300 bright minds creating innovative ideas and products. We don’t follow formats. We shape them. We build what works, launch it fast, and make sure it hits.
⚡ We are looking for a highly experienced Engineering Manager to join our teams in Valencia. With over 10 years of experience, you will lead the backend technologies and direct the delivery of several products. This role is focused on high-level technical leadership, managing senior talent, and ensuring engineering excellence across scalable, high-load systems.
🎯 Your Mission: Lead and develop backend engineering teams while owning the delivery of several products and the technical direction of the platform. You will ensure consistent delivery, foster a strong engineering culture, and manage team leads to continuously improve architecture, processes, and performance.
✅ Responsibilities:
• Direct and own the delivery of several products.
• Lead recruitment and onboarding processes, hiring and managing talent while supporting individual and team growth.
• Manage team leads and senior engineers through regular one-to-one sessions, feedback cycles, performance evaluations, and individual development plans.
• Lead or co-lead agile processes and Scrum or Kanban ceremonies, ensuring adherence to agile principles and best practices.
• Lead platform and product development without frequent involvement in writing or reviewing code.
• Improve platform and product quality by identifying technical debt, recurring issues, and architectural or process gaps.
• Manage team resources, balancing workloads, rotating people when necessary, and ensuring sustainable delivery.
• Drive the adoption of modern technologies and innovations to continuously evolve the company’s engineering capabilities.
• Define, improve, and enforce engineering standards and guidelines, ensuring domain knowledge is properly documented.
• Contribute to and lead engineering initiatives beyond the scope of the direct team, positively impacting the wider engineering organization.
✅ Requirements:
• Bachelor’s, Master’s, or higher degree in Computer Engineering, Computer Science, Applied Mathematics, or a related field.
• 10+ years of professional backend development experience.
• 5+ years of experience managing engineers and team leads, or senior technical profiles.
• Experience with Kubernetes and containers, cloud-based development, infrastructure and system design, microservices, and distributed systems.
• Experience with building and maintaining high-load systems.
• Strong knowledge of SQL and NoSQL databases.
• Solid understanding of data structures, coding patterns, and algorithms.
• Experience with RESTful APIs, message brokers, third-party integrations, code and peer reviews, CI/CD, secure development practices, information security, and test-driven development.
• Experience working with agile methodologies, ideally Scrum.
• Experience with Node.js (nice to have).
• Strong analytical, leadership, communication, and feedback skills.
• Fluency in English.
✅ We offer excellent benefits, including but not limited to:
🧑🏻 💻 Learning and development opportunities and interesting, challenging tasks;
✈️ Relocation package (tickets, staying in a hotel for up to 2 weeks, and visa relocation support for our employees and their family members);
📚 Opportunity to develop language skills, with partial compensation for the cost of language classes (for localization purposes);
🏥 Private medical coverage;
🏝 Time for proper rest, with paid vacation and sick leaves;
📈 Competitive remuneration level with annual review;
🤝 Teambuilding activities.
Bold moves start here. Make yours. Apply today!
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Apply to BrainRocket
Senior Node.js Developer
BrainRocket is a global company creating end-to-end tech products for clients across Fintech, iGaming, and Marketing. Young, ambitious, and unstoppable, we've already taken Cyprus, Malta, Portugal, Poland, and Serbia by storm. Our BRO team consists of 1,300 bright minds creating innovative ideas and products. We don’t follow formats. We shape them. We build what works, launch it fast, and make sure it hits.
❗️Please note that this role is office-based for Spain.
❗️If you need to be relocated, we take care of the process.
✅ We offer excellent benefits, including but not limited to:
📝 Official employment following Spain/EU laws, including registration of family members;
✈️ Relocation package (flight tickets + 2-week hotel stay);
📚 Language development support and partial compensation for classes;
🎁 Birthday celebration gift;
🏝 23 working days of Annual Vacation for proper rest;
Bold moves start here. Make yours. Apply today!
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Groupon is a marketplace where customers discover new experiences and services everyday and local businesses thrive. To date we have worked with over a million merchant partners worldwide, connecting over 16 million customers with deals across various categories. In a world often dominated by e-commerce giants, we stand out as one of the few platforms uniquely committed to helping local businesses succeed on a performance basis.
Groupon is on a radical journey to transform our business with relentless pursuit of results. Even with thousands of employees spread across multiple continents, we still maintain a culture that inspires innovation, rewards risk-taking and celebrates success. The impact here can be immediate due to our scale and the speed of our transformation. We're a "best of both worlds" kind of company. We're big enough to have the resources and scale, but small enough that a single person has a surprising amount of autonomy and can make a meaningful impact.
About the Role
📍Hybrid from Madrid or Valencia
You will engineer the core of our proprietary internal platform that democratizes AI across the company. This is not a standard full-stack role maintaining existing systems, you will build the factory that enables other teams to create autonomous AI Agents. You will design Chain of Thought reasoning flows, integration layers, and agent logic that allow AI to execute complex business tasks at scale. This is applied AI engineering: no model fine-tuning, just sophisticated system design and relentless execution. You will join a new focused team of two engineers, collaborating daily with the AIGO team and cross-functional partners across Global Operations, Customer Satisfaction, and Engineering.
Key Responsibilities
- Develop and expand our internal AI platform, enabling internal teams to build autonomous AI Agents without deep ML expertise
- Engineer Chain of Thought reasoning flows and integration layers that power agent logic
- Build reliable, long-running AI Agent systems that handle failures at scale and prevent cascading outages when external LLM providers go down
- Design node-based tools for intent retrieval, context management, and API routing
- Program agent logic using TypeScript, Node.js, Express, React, Next.js, and SQL
- Maintain a high bar for software quality and reliability while innovating at speed
- Integrate AI-native tooling (Cursor, Claude Code) into your development workflow without sacrificing code quality
Key Requirements
- Experience with TypeScript, Node.js, Express, React, Next.js, and SQL
- Practical knowledge of Docker, Kubernetes, and Linux environments
- Hands-on experience with Chain of Thought (CoT), Agent building, and RAG concepts
- An AI-First mindset: you already use Cursor or Claude Code and possess the engineering rigor to validate AI-generated code
- Proven track record of shipping software to production
Nice to Have
- Proficiency with Cursor or Claude Code
- Knowledge of ML theory (helpful for context, though fine-tuning is not part of the role)
What Success Looks Like
First 30 days: Set up your development environment, adopt AI-first workflows, gain a functional understanding of our internal AI platform, ship a bug fix to production, and build your first AI Agent using our platform.
First 60 days: Deep dive into a key product area’s architecture, design and implement a small-scale AI feature, and demonstrate independence in troubleshooting and shipping without hand-holding.
First 90 days: Take ownership of a significant AI feature from concept to production, contribute to internal documentation on Agent best practices, and actively participate in architectural reviews as a fully integrated team member.
One year: Transform a portion of our AI platform with a major AI-driven application feature, become recognized as a stakeholder in building and optimizing AI Agents across Groupon, and maintain a high bar for software quality while innovating at speed.
We Are Interested In
A true builder who wants to engineer the platform that powers AI Agents, not just write prompts. You bring a balance of “Old School” engineering discipline (reliability, structure) and “New Wave” AI agility. You are excited to use the latest AI-native stack to create sophisticated internal tools that drive global operations and shape how a global company operationalizes AI.
#LI-KH1 #LI-Hybrid
Groupon is an AI-First Company
We’re committed to building smarter, faster, and more innovative ways of working—and AI plays a key role in how we get there. We encourage candidates to leverage AI tools during the hiring process where it adds value, and we’re always keen to hear how technology improves the way you work. If you’re passionate about AI or curious to explore how it can elevate your role—you’ll be right at home here.
Groupon’s purpose is to build strong communities through thriving small businesses. To learn more about the world’s largest local e-commerce marketplace, click here. You can also find out more about us in the latest Groupon news as well as learning about our DEI approach. If all of this sounds like something that’s a great fit for you, then click apply and join us on a mission to become the ultimate destination for local experiences and services.
Beware of Recruitment Fraud: Groupon follows a merit-based recruitment process without charging job seekers any fees. We've noticed an increase in recruitment fraud, including fake job postings and fraudulent interviews and job offers aimed at stealing personal information or money. Be cautious of individuals falsely representing Groupon's Talent Acquisition team with fake job offers. If you encounter any suspicious job offers or interview calls demanding money, recognize these as scams. Groupon is not responsible for losses from such dealings. For legitimate job openings (and a sneak peek into life at Groupon), always check our official career website at Groupon Careers
Ready to apply?
Apply to Groupon
AI-Driven Software Engineer (Node.js & C++)
We offer you the opportunity to join the leading Spanish company in the IT sector, with more than 25 years of experience and one of the most solid track records as a provider of technological solutions for companies.
We are a growing company with more than 400 employees and offices in Logroño, Madrid, Barcelona, Seville, Bilbao and Valencia.
Since August 2013, we have been part of the IONOS Group, Europe's leading digitalisation partner for small and medium-sized companies.
In short, we are a multicultural team that’s passionate about technology, bringing our professional experience from over a dozen countries: Germany, Argentina, Spain, the United States, France, the Philippines, Italy, Poland, Portugal, the United Kingdom, Romania...
Mission
Act as the execution engine of the team, transforming architectural specifications into robust, efficient, and production-ready code. You will work on building and optimizing a hybrid Node.js–C++ system, leveraging AI tools as a key accelerator to maximize development speed without compromising quality.
Responsibilities:
- Develop backend components in Node.js and high-performance integrations with C++
- Translate technical specifications into functional solutions and accurately
- Use AI tools to accelerate development, validation, and code improvement
- Apply test-driven approaches to ensure robustness and stability
- Manage and optimize build environments (Docker, Make, CMake)
- Analyze system performance and identify bottlenecks, especially in Node.js ↔ C++ interactions
- Refactor legacy code into clean, maintainable, and high-performance solutions
- Collaborate closely with architecture roles to continuously improve the system
Requirements
Technical:
- Strong experience with Node.js development
- Ability to read, understand, and debug C++ code
- Experience working in Linux environments
- Familiarity with build tools and containers (Docker, Make, CMake)
AI & Development:
- Hands-on experience with AI-assisted development tools (e.g., Cursor, Claude, or similar)
- Ability to use AI as a productivity multiplier in software development
- Experience with iterative development, testing, and validation workflows
Profile:
- Strong English communication skills, as you will be working in an international team
- Execution-driven mindset with strong focus on quality and results
- Comfortable working in fast-paced environments
- Strong interest in performance optimization and continuous improvement
What We Offer:
- Hybrid work model (in any of our offices in Alcobendas, Valencia, Barcelona, Sevilla, or Logroño)
- Flexible working hours
- Flexible compensation package
- Discounts on Arsys products
- Discounts on technology brands
- Challenging technical environment with real high-performance system problems
- Access to advanced AI tools with no usage restrictions
- Close collaboration with senior profiles and a strong culture of continuous improvement
- Personalized training and development plans
- Biannual team events
Ready to apply?
Apply to arsys EN
Technical Product Owner
BrainRocket is a global company creating end-to-end tech products for clients across Fintech, iGaming, and Marketing. Young, ambitious, and unstoppable, we've already taken Cyprus, Malta, Portugal, Poland, and Serbia by storm. Our BRO team consists of 1,300 bright minds creating innovative ideas and products. We don’t follow formats. We shape them. We build what works, launch it fast, and make sure it hits.
We are looking for a Technical Product Owner for our Compliance & Regulation Squad to take ownership of the BaaS regulatory framework and ensure operational integrity. In this role, you will manage the technical backlog for our security and regulatory infrastructure, acting as a key bridge between our Core Banking engine and global compliance partners.
✅ Key responsibilities:
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Backlog & Strategic Alignment: Own and prioritize the Compliance backlog based on critical business objectives and Global OKRs. Partner with the Product Manager to translate company strategy into actionable technical milestones.
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Technical Integration Oversight: Act as the primary technical resource for integrations with Identity (KYC), Risk scoring, and AML tools. Manage technical dependencies with the platform and third-party providers.
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Advanced Requirement Engineering: Gather and verify functional/non-functional requirements. Build and maintain Epics and Stories with a heavy focus on Financial Edge Cases (e.g., sanction hits, failed KYC loops, or suspicious transaction patterns).
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Regulatory & Security Compliance: Ensure every feature satisfies international standards, including PSD2/3, DORA, and PCI-DSS. Act as a mediator to ensure the "User Golden Path" never bypasses mandatory security checks.
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Stakeholder & Vendor Liaison: Serve as the central technical link between the Engineering team, the CISO, and external vendors. Secure approvals for data privacy and security architecture decisions.
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Sprint Execution & Quality: Define sprint objectives and approve all product increments. Ensure every release—from backend API to frontend UI—meets our platform’s rigorous security and audit logging standards.
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Incident & Change Management: Proactively manage change requests for security patches and regulatory updates. Define "Acceptance Criteria" that mandate strict audit-trail documentation and security validation.
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Operational Guidance: Provide subject matter expertise to internal teams. Oversee technical operational tasks, such as whitelisting processes and system permission architecture.
✅ Requirements:
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Experience: 3+ years as a Technical PO, Business Analyst, or System Analyst in Fintech, BaaS, or RegTech.
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Domain Expertise: Deep understanding of the DORA framework, ISO 27001 principles, and the technical lifecycle of KYC/AML/CTF workflows.
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Technical Skill Set:
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API & Data: Proficient in documenting/testing RESTful APIs and webhooks; solid understanding of backend architecture and data flow.
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Modeling: Ability to create and interpret UML and BPMN diagrams for complex money and data movements.
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Lifecycle: Expert-level knowledge of the full requirements lifecycle in a high-stakes environment.
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Analytical Decision Making: Ability to synthesize complex information from third-party APIs to make logical, rapid decisions during technical conflicts or security incidents.
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Leadership & Vision: Proven ability to lead a cross-functional squad (Node.js, QA, Data) through influence and technical authority rather than direct reporting lines.
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Agile Mastery: Deep experience in Scrum/Agile, specifically managing high-velocity delivery with significant third-party dependencies.
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Communication: Advanced English (written and spoken). Ability to translate "Regulation-speak" into "Developer-speak" and vice versa.
✅ We offer excellent benefits, including but not limited to:
🧑🏻💻 Learning and development opportunities and interesting, challenging tasks;
✈️ Relocation package (tickets, staying in a hotel for up to 2 weeks, and visa relocation support for our employees and their family members);
📚 Opportunity to develop language skills, with partial compensation for the cost of language classes (for localization purposes);
🏥 Private medical coverage;
🏝 Time for proper rest, with paid vacation and sick leaves;
📈 Competitive remuneration level with annual review;
🤝 Teambuilding activities.
Bold moves start here. Make yours. Apply today!
By submitting your application, you agree to our Privacy Policy.
Ready to apply?
Apply to BrainRocket