Junior Backend Developer jobs in Madrid – Page 11 | RoboApply Jobs

Junior Backend Developer jobs in Madrid· Page 11

Results 201–220 of 257 for “Junior Backend Developer” in Madrid.

257 jobs found

201 - 220 of 257 Jobs
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Nexthink logo
Full-time|Hybrid|Madrid

Join Nexthink as a Platform Engineer, where you'll play a pivotal role in enhancing the Engineering Productivity team's initiatives to empower product engineering teams in delivering exceptional software efficiently and at scale.In this dynamic position, you will take ownership of our enablement platform and productivity tools, focusing on the evolution and …

Feb 27, 2026
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Destinus logo
Full-time|On-site|Madrid, Community of Madrid, Spain

About the RoleAre you ready to build the digital interfaces that will drive the future of next-generation Unmanned Aerial Vehicle (UAV) systems? In this pivotal role, you will play a key part in the design, development, and testing of software systems that facilitate everything from UAV manufacturing to their real-world operational deployment. Your main focus will be creating intuitive, high-performance user interfaces that empower operators and engineers to interact with intricate aerospace systems seamlessly and reliably.At Destinus, we are at the forefront of revolutionizing the defense sector with our groundbreaking UAV technologies. Our innovations are tailored to meet the complex demands of modern defense operations, offering unmatched speed, accuracy, and cost efficiency. Destinus collaborates with government agencies and defense organizations globally to deliver advanced solutions for mission-critical tasks, ushering in a new era of operational efficiency and technological dominance. Join us in pioneering the future of defense through cutting-edge aerospace innovations.Your ResponsibilitiesEngage in the design, development, and testing of systems that span the production and operational phases of our UAVs.Front-End Development - Craft interactive and user-friendly interfaces using React.Back-End Development - Construct a robust backend architecture for efficient data retrieval and processing.DevOps - Oversee and deploy applications on platforms like AWS EC2 and Docker Swarm.CI/CD - Create efficient Continuous Integration and Continuous Delivery pipelines for our systems.Testing - Establish a comprehensive testing suite to validate our mission-critical systems.Monitoring - Develop and implement monitoring solutions to troubleshoot and resolve software issues swiftly.

Mar 6, 2026
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Celonis SE logo
Full-time|On-site|Madrid, Spain

Join our innovative team as a Senior Software Engineer specializing in orchestration and automation at Celonis in Madrid. In this pivotal role, you will be instrumental in designing and developing cutting-edge software solutions that enhance our automation capabilities. Collaborate with cross-functional teams to streamline processes and drive efficiency across our platforms.

Apr 1, 2026
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Datadog logo
Full-time|Hybrid|Madrid, Spain

Join Datadog as an Engineering Manager, where you will spearhead and nurture our Code Coverage team, dedicated to developing cutting-edge AI-powered developer tools. This team manages Datadog’s Code Coverage product across the entire stack, enabling customers to effectively monitor and enforce test coverage. As an integral part of our Software Delivery suite, Code Coverage empowers engineering teams to enhance their workflows and ensure security while accelerating delivery. In this pivotal role, you will cultivate a high-performing engineering team in a dynamic and evolving environment. You’ll define technical direction, oversee execution, and maintain a hands-on approach. Collaborating closely with customers and product management, you will drive the evolution of our product into an automated solution that utilizes production signals and AI to elevate test quality, relevance, and performance. At Datadog, we highly value our office culture—the relationships we build, the creativity we foster, and the collaborative spirit of working together. We embrace a hybrid workplace model to help our employees achieve a work-life balance that suits their individual needs.

Mar 23, 2026
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dLocal logo
Full-time|On-site|Madrid

Why Join dLocal?At dLocal, we empower some of the largest companies globally to seamlessly collect payments across 40 countries within emerging markets. Our innovative solutions enhance conversion rates and simplify payment expansion, making us a trusted partner for global brands aiming to penetrate the world's fastest-growing markets.By becoming a part of our team, you will join an extraordinary global workforce of over 1000 professionals from more than 30 nationalities, fostering an international career that influences millions of lives daily. We are builders at heart, embracing challenges and placing our customers at the forefront of everything we do. If this resonates with you, we believe you will flourish in our dynamic environment.What Awaits You? We are in search of a highly proficient Java Specialist to enhance our Core department. In this pivotal role, you will be instrumental in designing and implementing architectural systems that underpin our current and future Java applications. Collaborating closely with the development team, your primary objective will be to ensure that solutions are efficient, scalable, and in alignment with client specifications. To excel in this position, you should possess extensive knowledge of software and architectural design patterns, coupled with advanced Java programming skills. A thorough understanding of the department's overarching requirements and goals is essential. By leveraging your expertise, you will contribute significantly to the ongoing enhancement of our technology stack and play a critical role in shaping the future of our department. Your strategic thinking and ability to grasp the bigger picture will be crucial to your success in this fast-paced and rewarding role.

Mar 24, 2026
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Sopra Steria logo
Full-time|On-site|Madrid

We are seeking a dynamic and experienced Senior Technical Lead to join our team in Madrid. In this pivotal role, you will leverage your extensive technical expertise to lead projects and drive innovation within our Software Business Solutions (SBS) division. You will collaborate with cross-functional teams to ensure the successful delivery of high-quality software solutions, mentor junior developers, and contribute to architectural decisions.

Mar 13, 2026
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airapps logo
Full-time|On-site|Madrid

airapps is hiring a Software Architect based in Madrid. This position focuses on designing and building software solutions that enhance user experiences and help meet business objectives. The Software Architect works as part of the development team and collaborates with colleagues from various departments. Main responsibilities Work with cross-functional teams to define technical requirements Create software architecture for both new and existing applications Guide software project implementation to ensure it follows established architectural plans

Apr 24, 2026
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AirApps logo
Full-time|On-site|Madrid

AirApps is looking for a React Native Engineer to join the team in Madrid. This position centers on developing and refining mobile applications that serve users on multiple platforms. The group values engineers who bring new perspectives and pay attention to delivering seamless user experiences. What you will do Collaborate with colleagues in product, design, and engineering to build mobile apps Design, develop, and maintain features using React Native Help drive improvements in code quality and app performance Requirements Background in building mobile applications with React Native Ability to work effectively with cross-functional teams Interest in developing reliable and user-friendly products This role is based in Madrid.

Apr 24, 2026
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Lynx Financial Crime Tech S.A logo
Full-time|On-site|Madrid

Note: Only candidates located in Spain will be considered. Visa sponsorship is not available. Lynx Financial Crime Tech S.A develops AI-driven systems to detect and predict behavioral patterns in financial transactions. The team draws on backgrounds in both finance and academia, focusing on self-learning tools that support low-latency processing for clients in banking, fintech, and commercial sectors. Their solutions work across on-premises and cloud environments. The company values vision, agility, and speed, aiming to build trust with customers and encourage proactive risk management. Lynx supports diversity and equal opportunity, welcoming people from all backgrounds. Role overview This Madrid-based Software Engineer (Python) position centers on building and maintaining an AI-powered anti-money laundering (AML) tool. The platform relies on Big Data and real-time processing to deliver self-learning solutions for the financial sector. Main responsibilities Analyze requirements and contribute to solution design. Develop and maintain a cloud application for AML detection in financial environments. Assess system performance and identify areas for speed improvements. Conduct quality assurance testing to validate new features and changes. Create and manage test cases. Diagnose and resolve software issues. Promote best practices in the use of development repositories and tools.

Apr 24, 2026
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Experian logo
Full-time|On-site|Madrid

Role overview The Pre Sales Consultant position at Experian in Madrid centers on supporting the sales team. The role involves understanding what prospective clients need and showing how Experian’s products can meet those needs. By connecting customer challenges with Experian’s technology, this position helps potential clients see the value in the company’s solutions. What you will do Work closely with sales colleagues to identify and assess customer requirements Create and deliver solution presentations tailored to each prospect, using Experian’s product suite Guide potential clients in understanding how Experian’s technology addresses their specific challenges Location This role is based in Madrid.

Apr 27, 2026
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arsys2 logo
Full-time|On-site|Avenida de Bruselas 7, 28108 Alcobendas

Join our innovative team at arsys2, where you will be at the forefront of developing cutting-edge solutions. As an AI-Driven Software Engineer, you will transform architectural specifications into robust, efficient, and production-ready code. Your expertise in building and optimizing a hybrid Node.js–C++ system will be invaluable as you leverage AI tools to accelerate development speed without sacrificing quality.

Apr 23, 2026
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JetBrains s.r.o. logo
Full-time|Remote|Amsterdam, Netherlands; Belgrade, Serbia; Berlin, Germany; Limassol, Cyprus; Madrid, Spain; Munich, Germany; Paphos, Cyprus; Prague, Czech Republic; Remote, Germany; Warsaw, Poland; Yerevan, Armenia

JetBrains is looking for a Product Manager to focus on Agent Interoperability (ACP). This position involves shaping the strategy and guiding the development of features that help JetBrains products work together more effectively. The role is available in several European locations, including remote options within Germany. Key responsibilities Define and lead the strategy for Agent Interoperability (ACP) across JetBrains products. Collaborate with engineering, design, and cross-functional teams to move features from concept to launch. Prioritize features and releases, considering both technical requirements and user value. Oversee product launches and support smooth delivery to end users. Gather and use feedback to refine the product vision and improve interoperability and user experience. Locations Amsterdam, Netherlands Belgrade, Serbia Berlin, Germany Limassol, Cyprus Madrid, Spain Munich, Germany Paphos, Cyprus Prague, Czech Republic Remote, Germany Warsaw, Poland Yerevan, Armenia

Apr 22, 2026
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JetBrains s.r.o. logo
Full-time|Remote|Amsterdam, Netherlands; Belgrade, Serbia; Berlin, Germany; Limassol, Cyprus; London, United Kingdom; Madrid, Spain; Munich, Germany; Paphos, Cyprus; Prague, Czech Republic; Remote, Germany; Warsaw, Poland; Yerevan, Armenia

JetBrains is seeking an AI Lead focused on integrating artificial intelligence into the C++ ecosystem. This role shapes how AI features enhance C++ development tools, directly impacting the way engineers write and maintain code. Key responsibilities Lead initiatives that embed AI capabilities into JetBrains C++ products Collaborate with engineering teams to design and implement AI-driven solutions for software development workflows Help set the direction for AI in C++ tooling at JetBrains Locations This position is open in Amsterdam, Belgrade, Berlin, Limassol, London, Madrid, Munich, Paphos, Prague, remote (Germany), Warsaw, and Yerevan.

Apr 28, 2026
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JetBrains s.r.o. logo
AI Lead - Python Tools

JetBrains s.r.o.

Full-time|Remote|Amsterdam, Netherlands; Belgrade, Serbia; Berlin, Germany; Limassol, Cyprus; London, United Kingdom; Madrid, Spain; Munich, Germany; Paphos, Cyprus; Prague, Czech Republic; Remote, Germany; Warsaw, Poland; Yerevan, Armenia

JetBrains is seeking an AI Lead focused on Python tools. This position centers on advancing AI technologies across the company’s product suite, with the goal of improving both user experience and product capabilities. Role overview The AI Lead will guide the development and integration of AI features into JetBrains products. The role involves direct oversight of AI project initiatives and regular collaboration with teams from various disciplines. Expect to play a key part in shaping technical direction and ensuring that Python-powered solutions continue to set a high standard in the industry. What you will do Oversee AI-focused projects from conception through implementation Work closely with engineers, designers, and product managers to align AI features with product goals Drive innovation by applying Python expertise to create and refine AI solutions Locations This role is open to candidates based in Amsterdam, Belgrade, Berlin, Limassol, London, Madrid, Munich, Paphos, Prague, remote within Germany, Warsaw, and Yerevan.

Apr 29, 2026
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Fever logo
Full-time|On-site|Madrid

Greetings! We are Fever, the premier technology platform for cultural and live entertainment.Our goal? To make culture and entertainment accessible to everyone. Utilizing our innovative technology and data-driven strategies, we are transforming how individuals interact with live entertainment. Each month, our platform captivates over 300 million users across more than 55 countries, inviting them to discover remarkable experiences while empowering event creators through our data and technology, enabling them to innovate, scale, and reach new audiences.Our achievements? We've collaborated with prominent industry leaders such as Netflix, F.C. Barcelona, and Primavera Sound, showcased internationally acclaimed experiences, and secured backing from top global investors! Impressive, right? To fulfill our mission, we seek ambitious individuals with a proactive mindset who are excited to help shape the future of entertainment!Are you ready to join the experience?Now, let’s delve into this role and your contributions to Fever’s mission.Get to Know Our TeamThe Growth team is responsible for executing Fever's business strategy across all markets. We ensure that partner performance meets expectations and actively drive global growth.The New Business team specializes in developing compelling commercial proposals to secure successful partnerships. We also lead initiatives in upselling and cross-selling while providing demand forecasts and pinpointing optimal locations for both Fever Originals and major third-party events.Our methodology is predominantly data-driven, from high-level strategic planning to operational execution. This empowers us to understand Fever’s business model comprehensively and collaborate effectively across teams to promote growth in the right direction.

May 4, 2026
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alan logo
Full-time|On-site|Paris, France; Bordeaux, France; Marseille, France; Lyon, France; Brussels, Belgium; Madrid, Spain; Barcelona, Spain

Join alan as a Business Segment Lead and take charge of driving growth and innovation within our dynamic team. This pivotal role involves developing strategic initiatives, engaging with stakeholders, and leading cross-functional teams to enhance our business offerings. You will have the opportunity to shape the future of our segments while collaborating with talented professionals across multiple locations.

May 4, 2026
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T-Systems Iberia logo
Full-time|On-site|Madrid

At T-Systems Iberia, we are driving digital transformation across key sectors by merging interoperability, artificial intelligence, and regulatory compliance. We are searching for a skilled professional experienced in designing solution architectures that connect complex systems.Location: We welcome applications from across the national territory. ResponsibilitiesCoordinate the integration of internal systems with external services (public administrations, suppliers, digital identity infrastructures...)Collaborate with multidisciplinary teams to ensure compliance with technical and regulatory standards.

May 4, 2026
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Groupon, Inc. logo
Full-time|Hybrid|Madrid; Valencia

Join Groupon, a leading marketplace where customers explore new experiences and services daily, and where local businesses thrive. We have partnered with over a million merchants worldwide, connecting more than 16 million customers with deals across diverse categories. In a landscape often dominated by e-commerce giants, Groupon stands out as one of the few platforms genuinely committed to propelling local businesses forward based on performance.We are on an exciting journey to radically transform our business through a relentless focus on results. Despite having thousands of employees across multiple continents, we foster a culture that inspires innovation, rewards risk-taking, and celebrates success. Here, your impact can be immediate due to our scale and the rapid pace of our transformation. We blend the best of both worlds: we have the resources and scale of a large company, yet we empower individuals to have significant autonomy and drive meaningful change.About the RoleHybrid from Madrid or ValenciaAs a Full Stack AI Engineer, you will engineer the foundation of our proprietary internal platform that democratizes AI across the organization. This role goes beyond standard full-stack duties; you will construct the framework that enables various teams to develop autonomous AI agents. Your responsibilities will include designing reasoning flows, integration layers, and agent logic that empower AI to execute complex business tasks at scale. This is applied AI engineering: focusing on sophisticated system design and relentless execution rather than model fine-tuning. You will collaborate daily with a newly formed team of engineers and work closely with the AIGO team and cross-functional partners across Global Operations, Customer Satisfaction, and Engineering.

Mar 2, 2026
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Side, Inc. logo
Contract|On-site|Madrid, Community of Madrid, Spain

About SideSide is an innovative global provider of video game development and services, delivering top-tier technical and creative solutions to leading developers and studios worldwide. Established in 2009, we leverage over 30 years of experience from our parent company in Japan, and we have expanded into a powerful entity with more than 15 studios across North America, Europe, South America, and Asia.Our comprehensive services encompass game development, art production, audio production, quality assurance, localization, community management, and more, ensuring we meet the diverse needs of our clients.About This OpportunityThis listing is not for an immediate position but is intended for our Talent Pool for Co-Development Roles. By submitting your application, you express your interest in being considered for future project-based opportunities that match your skills and experience.These opportunities depend on client demands and project availability. As new projects arise or client proposals are established, we will review candidates from this pool and reach out to those whose profiles align with the specific requirements of the co-development roles.How We Engage YouWe prioritize keeping our talent pool informed by providing regular updates, sharing industry insights, and notifying you about upcoming opportunities. We will periodically check in to confirm your availability and interest.Our hiring teams meticulously evaluate and select top candidates who best match project requirements, ensuring you are paired with the right opportunity when it becomes available.Next StepsIf you are eager to contribute to groundbreaking projects and wish to be considered for future co-development roles, we encourage you to apply. While there may not be an immediate opening, your application ensures you remain in our ongoing talent review for forthcoming positions.Only applications submitted in English will be considered.Key ResponsibilitiesDevelop high-quality 3D environment assets including landscapes, architecture, and props, ensuring alignment with the creative vision and gameplay requirements of the project.Collaborate closely with art leads, game designers, and other team members to create immersive and visually captivating game worlds.Utilize industry-standard tools to model, texture, and optimize assets for real-time performance across various platforms.Contribute to the development and maintenance of art pipelines and workflows to streamline production processes.Maintain consistency in environmental art style and quality across the project.

Aug 20, 2025
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Side Inc. logo
Contract|On-site|Madrid, Community of Madrid, Spain

Discover Your Potential with SideAt Side, we are a premier global video game development and services provider, delivering top-notch technical and creative solutions to some of the world's leading developers and studios. Since our inception in 2009, we have leveraged over 30 years of experience from our parent company in Japan to expand our reach, now operating 15+ studios across North America, Europe, South America, and Asia. Our extensive range of industry-leading services includes game development, art production, audio production, quality assurance, localization, localization QA, player support, community management, and dataset creation. Your Future AwaitsThis listing is part of our Talent Pool for Co-Development Roles; it is not for an immediate position. By applying, you express your interest in being considered for future project-based opportunities that match your skills and expertise.Opportunities will depend on client needs and project availability. We will review candidates from this talent pool as projects are initiated or client proposals are developed, reaching out to those whose skills closely align with the specific requirements of the co-development role.Stay ConnectedWe value our connection with talent and provide regular updates, industry insights, and notification of future opportunities. We will periodically check in to confirm your availability and interest.Our hiring teams carefully evaluate candidates to ensure the best match for project needs, so you can be confident in your alignment with the right opportunity when it arises.Take the Next StepIf you are eager to contribute to innovative projects and wish to be considered for future co-development opportunities, we invite you to apply to this listing. While there may not be an immediate opening, your application ensures your inclusion in our ongoing talent review process for upcoming roles.Note: Only resumes submitted in English will be considered.Key ResponsibilitiesCraft intricate and visually captivating character concept art, encompassing clothing, accessories, and various character elements.Collaborate closely with art leads, 3D artists, and game designers to ensure character designs are in harmony with the project's creative vision and gameplay requirements.Generate character designs across diverse styles, ranging from realistic to stylized, depending on project needs.Develop iterations of character concepts, providing a variety of options while exploring unique visual ideas.Ensure consistency and quality in design, maintaining high standards throughout the process.

Aug 20, 2025

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