Senior Backend Software Engineer Scalability And Performance jobs in Madrid – Page 3 | RoboApply Jobs

Senior Backend Software Engineer Scalability And Performance jobs in Madrid· Page 3

Results 41–60 of 595 for “Senior Backend Software Engineer Scalability And Performance” in Madrid.

595 jobs found

41 - 60 of 595 Jobs
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T-Systems Iberia logo
Full-time|On-site|Madrid

About the Role T-Systems Iberia is looking for a Framework Engineer focused on server performance and efficiency. This position is based in Madrid. What You Will Do Develop and implement test frameworks to monitor and improve server performance. Work to optimize server environments for greater efficiency. Support efforts to deliver reliable, high-performing …

Apr 16, 2026
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dLocal logo
On-site|On-site|Madrid

Are you ready to take your software engineering career to the next level? Join dLocal as a Senior Software Engineer and become part of an innovative team that empowers global brands to seamlessly collect payments in over 40 emerging markets. In this talent pool, you can express your interest in future opportunities within our IT Team. We are looking for passionate engineers who thrive in a dynamic environment and are eager to tackle challenges head-on. As a valued member of our team, you will contribute to projects that impact millions of lives while collaborating with over 1000 diverse professionals from more than 30 nationalities.

Apr 30, 2025
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Sopra Steria logo
Full-time|On-site|Madrid

Join our innovative team at Sopra Steria as a Backend Microservices Developer! We are seeking a talented individual who is passionate about technology and has a strong command of English. You will be responsible for designing, developing, and maintaining robust backend microservices that drive our applications. Collaborate with cross-functional teams to deliver high-quality software solutions that meet our clients' needs.

Mar 4, 2026
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Pleo logo
Full-time|On-site|Madrid, Spain, London, United Kingdom, Copenhagen, Denmark

Managing expenses can often be chaotic and cumbersome, creating challenges not only for finance teams but for every individual involved. At Pleo, we are on a mission to revolutionize this experience. Our innovative spend management solutions streamline financial processes, making them efficient, empowering, and surprisingly effective for both finance teams and employees—our goal is to help businesses 'go beyond'.The name 'Pleo' translates to 'more than you’d expect', and living by this principle has been our key to success over the past decade.We are currently at a crucial stage in our evolution; every action we take has a significant impact on our 40,000+ clients, our business trajectory, and our shared success. We seek individuals who take pride in identifying customer needs, transforming complex challenges into straightforward solutions, respectfully questioning established methods, and aspiring to achieve greatness. With ambitious goals propelling us forward, we acknowledge that we haven't mastered everything yet—and that’s part of the excitement! We are a dedicated, forward-thinking, and importantly, kind team of over 850 individuals from more than 100 nationalities, all committed to shaping the future of business spending together.About the RoleWe are in search of a Senior Software Engineer to become a key member of our Demo Experience Platform team at Pleo. In this role, you will empower various internal customers and stakeholders to engage with, test, and demonstrate Pleo through our demo and sandbox environments, contributing to Pleo’s Platform organization. If you are enthusiastic about enhancing our sales demo experience, boosting our sales conversion rates, streamlining our product development processes, or facilitating seamless integrations within our API ecosystem, this opportunity is tailored for you!You will report to our Senior Engineering Manager and collaborate closely with teams across multiple departments, particularly in Go-to-market, to drive success. Our tightly-knit team of four is highly collaborative and committed to optimizing the demo experience for Pleo.Key ResponsibilitiesAs a Senior Software Engineer in our Demo Experience team, you will:Lead initiatives to design, develop, and maintain innovative solutions that enhance efficiency across various departments.Collaborate with cross-functional teams to identify improvement opportunities for demo, sandbox, and testing account experiences.Engage in code reviews, conduct post-mortems, and provide mentorship to fellow engineers.Proactively tackle technical debt while guiding the team through technical challenges and migrations.Contribute to the execution, delivery, and quality assurance of projects.

Feb 27, 2026
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NielsenIQ logo
Full-time|On-site|Madrid, Barcelona, Valladolid

Join NielsenIQ as a Senior Antibot Engineer and play a pivotal role in enhancing the security and functionality of our systems. You will be responsible for developing sophisticated antispam and antibot solutions that protect our data integrity and improve user experience. Collaborate with cross-functional teams to identify vulnerabilities and implement robust measures against automated threats.

Apr 13, 2026
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Lynx Financial Crime Tech S.A. logo
Junior Backend Developer

Lynx Financial Crime Tech S.A.

Full-time|On-site|Madrid

We only consider applications based in Spain. Lynx Financial Crime Tech S.A. is actively seeking a talented Junior Backend Developer to join our dynamic team in Madrid. WHY YOU SHOULD CONSIDER THIS OPPORTUNITYAt Lynx Financial Crime Tech S.A., we are at the forefront of AI-driven software development, specializing in identifying and predicting behavioral patterns. Guided by industry experts and academics, we create and implement state-of-the-art self-learning AI technologies. Our platform excels in low-latency transaction processing technologies, available both on-premises and in the cloud.We prioritize VISION, AGILITY, and SPEED to deliver exceptional customer experiences and have established lasting, trust-based relationships with leading financial institutions, fintechs, and trading companies worldwide.Lynx is proud to be an equal opportunity employer, valuing diversity in gender identity, culture, and disability. Our mission is to empower more individuals and businesses to thrive.We embrace a robust risk culture and expect all our professionals, regardless of their position, to adopt a proactive and responsible approach to risk management. WHAT YOU WILL DO IN YOUR ROLEAs a Backend Developer, your primary responsibility will be to contribute to the development of Lynx’s fraud detection application for payment methods.We are looking for someone like you to assist us in various areas:Design and development of new application modulesImplementation of modules in the AWS environmentDesign of continuous integration processesSpecification of development standards EXPERIENCENo prior experience required.EDUCATIONBachelor's Degree in Computer ScienceSKILLS & KNOWLEDGEIntermediate to advanced English proficiencyFamiliarity with the following tools and systems:Linux...

Mar 19, 2026
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Aircall logo
Full-time|On-site|Madrid Office

Join Aircall, an innovative unicorn transforming customer communications through AI-powered solutions utilized by over 22,000 businesses globally. Our platform unifies voice, SMS, WhatsApp, and AI into a cohesive workspace that enhances efficiency and revenue.With a mission to empower teams to operate smarter, Aircall’s AI Voice Agent automates routine calls while AI Assist and AI Assist Pro provide streamlined processes and real-time assistance, enabling teams to achieve remarkable results.Headquartered in Paris, Aircall has a robust presence in North America with a headquarters in Seattle and teams across cities including Madrid, London, Berlin, San Francisco, New York City, Sydney, and Mexico City. Our rapidly growing business is supported by leading investors and driven by continuous AI innovation across our diverse product lines.Culture at Aircall: We prioritize customer focus, data-driven decision-making, and the delivery of impactful outcomes. Our values include ownership, continuous learning, and a commitment to thoughtful execution. If you thrive in a collaborative and fast-paced environment where trust and impact are prioritized, you will find your place here.We are seeking an enthusiastic and dedicated Senior Software Engineer to contribute to our expanding Communication Platform department as part of the Number Management team. In this role, you will spearhead the design, development, deployment, and maintenance of essential features that significantly enhance customer value.You will actively promote best practices and mentor colleagues within your team and across the engineering department.Our commitment to quality, excellence, and agility is central to our delivery processes, and you will play a vital role in elevating these standards.

Oct 24, 2025
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doco1 logo
Full-time|On-site|Madrid

Join our dynamic team at doco1 as a Senior Software Developer. This on-site role in vibrant Madrid offers a unique opportunity to work on cutting-edge software solutions in a collaborative environment. You will be responsible for designing, developing, and maintaining high-quality software applications, contributing to all phases of the software development life cycle.

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

Join us at Fever, the premier technology platform transforming the culture and live entertainment sector.Our goal is to make culture and entertainment accessible to everyone. Utilizing our innovative technology and data-centric strategies, we are changing how audiences experience live events. Every month, we inspire over 300 million people across more than 40 countries to explore remarkable experiences, while empowering event creators with data and tools to innovate and expand their reach.We’ve partnered with renowned industry giants such as Netflix, F.C. Barcelona, and Primavera Sound, delivering award-winning experiences and supported by top global investors. Exciting, right?To further our mission, we are on the lookout for proactive individuals ready to help redefine entertainment!The Marketing Team, one of Fever’s largest, collaborates across departments to design, execute, and evaluate impactful 360º marketing campaigns that encourage our community to uncover the best experiences their cities offer.Within the marketing division, teams focus on Acquisition, Growth, Category Management, CRM, Social Media, Content, and Creative Optimization.About the RoleOversee the comprehensive marketing strategy for your experiences, enhancing demand, visibility, and sustainable growth across a diverse range of high-impact events.Create engaging and scalable marketing strategies for exclusive global experiences, including strategic partner events and Fever Originals.Lead multi-channel digital marketing initiatives across platforms such as Meta (primary), Google, TikTok, and emerging media, ensuring consistent results and high ROI.Collaborate closely with the Business Strategy and Growth Marketing teams to analyze performance, identify opportunities, and develop strategies that maximize regional growth.Coordinate cross-functionally with creative teams to produce compelling content that resonates with diverse audiences.

Mar 9, 2026
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Fever logo
Full-time|On-site|Madrid

Fever is a technology platform based in Madrid that connects people with cultural and live entertainment experiences. The platform reaches over 300 million people each month in more than 55 countries, helping users discover new events and activities. Event creators also rely on Fever's technology and data to expand their audiences. Fever works with partners such as Netflix, F.C. Barcelona, and Primavera Sound, and has delivered experiences recognized internationally. Role overview The Business Performance Associate joins the Revenue Management team, which focuses on growing Fever’s marketplace. This team develops sales strategies, optimizes content and categories, and maintains high standards across all listings. Team members analyze performance data, refine internal processes, and support sales teams in meeting their goals. Efforts center on curating content, improving marketplace setup and copy, and increasing both visibility and conversion rates. Collaboration and workflow Close collaboration with Quality Assurance and Sales teams is key. The role involves identifying issues early, streamlining workflows, and creating solutions that keep the marketplace running smoothly and efficiently. What makes a good fit People who are detail-oriented, have a strategic mindset, and care about high-quality content tend to thrive here. The team values those who help maintain Fever’s marketplace standards and contribute to its position as a global leader.

Apr 28, 2026
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zooplusse logo
Full-time|On-site|Madrid

zooplusse is seeking a Senior AI Engineer in Madrid with a focus on the Software Development Life Cycle (SDLC). This position centers on designing and implementing AI solutions that support both product development and operational efficiency. Role overview This role involves leading efforts to improve system architecture and optimize machine learning models. Collaboration with teams from different disciplines is a key part of the work, as projects often span multiple areas of the company. What you will do Design and implement AI-driven solutions for software development and operations Collaborate with cross-functional teams to refine system architecture Work on optimizing machine learning models to enhance performance Who we are looking for The ideal candidate brings deep experience in artificial intelligence and a strong background in software development. Leadership in technical projects and a drive to advance technology are important qualities for this role.

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

Welcome to Fever! We’re the world’s premier technology platform for culture and live entertainment.Our vision? To make culture and entertainment accessible to everyone. Utilizing our proprietary, state-of-the-art technology and a data-driven approach, we are transforming how people experience live entertainment. Each month, our platform motivates over 300 million individuals across more than 55 countries to uncover unforgettable experiences while also equipping event creators with our insights and technology to expand, innovate, and elevate their events to reach broader audiences.Our achievements? Collaborating with industry giants such as Netflix, F.C. Barcelona, and Primavera Sound, delivering internationally recognized experiences, and receiving support from top global investors! Quite impressive, right? To fulfill our mission, we seek ambitious individuals with a proactive mindset, excited to help shape the future of entertainment! Are you ready to join the adventure?Now, let’s dive into this role and explore how you will contribute to Fever’s mission.Meet the TeamThe Creative Marketing team bridges business, data, and creativity, ensuring Fever’s experiences resonate with audiences globally. We research, conceptualize, and develop campaigns, creating audiovisual and digital content that brings our projects to life. Through collaboration across teams, we guarantee that every experience is underpinned by creative strategies and insights that make a difference.Join us and help craft the ideas and content that define Fever’s global experiences.The Role:Develop Creative Concepts for Marketing Campaigns and Digital ProjectsEngage in the initial phases of projects to generate innovative and fresh ideas that align with client goals and campaign strategies.

May 4, 2026
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The Trade Desk logo
Software Engineer II

The Trade Desk

Full-time|On-site|Madrid

The Trade Desk seeks a Software Engineer II based in Madrid. This position covers the full product lifecycle, from initial design through to delivery, with a focus on data-driven solutions for a variety of stakeholders. Key responsibilities Design, develop, and maintain scalable back-end infrastructure Enhance client-facing applications and create internal tools Optimize bidding processes to boost system efficiency Contribute to systems that manage global, always-on traffic Collaboration and impact Teams at The Trade Desk prioritize quality and scalability in every project. Collaboration is a core part of the engineering culture, with regular partnerships across teams to deliver reliable, efficient solutions. The systems built in this role support both clients and internal users, directly advancing The Trade Desk’s technology goals.

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

Join Pleo as a RevOps Performance Analyst, where you will play a pivotal role in optimizing our revenue operations. You will analyze performance metrics, identify trends, and provide actionable insights that help drive strategic decisions. Collaborate with cross-functional teams to enhance operational efficiency and support our rapid growth. Your analytical skills and attention to detail will be critical in shaping our business strategies.

Apr 13, 2026
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auto1 logo
Full-time|On-site|Madrid

auto1 seeks a Performance Marketing Manager to join the team in Madrid. The role centers on driving online growth and attracting new customers through targeted, results-oriented marketing efforts. Key responsibilities Lead marketing campaigns focused on performance and customer acquisition Analyze data to track and measure the effectiveness of campaigns Refine strategies based on campaign results and analytics Location This role is based in Madrid.

Apr 28, 2026
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NextEnergy Group logo
Full-time|On-site|London, England, United Kingdom; Madrid, Madrid, Spain; Sevilla, Seville, Spain

Role Overview The Global Head of Operations & Maintenance Engineering at WiseEnergy, part of NextEnergy Group, leads the development and continuous improvement of global O&M engineering practices. Based in London, Madrid, or Sevilla, this senior position shapes the O&M strategy across multiple regions, asset types, and client portfolios. Key Responsibilities Set and maintain global engineering standards for O&M activities. Develop and refine the O&M strategy to ensure consistent, high-quality service delivery through third-party partners. Maximize asset value by ensuring O&M spending drives performance, reliability, and long-term sustainability. Act as the strategic lead for O&M partnerships: build strong relationships, define expectations, and manage provider performance. Oversee asset performance, availability, and compliance, focusing on risk mitigation and robust governance. Use operational data and insights to inform future asset design, construction, and investment decisions. Serve as WiseEnergy’s senior technical authority for operational assets. Work closely with WiseEnergy’s senior leadership and the broader NextEnergy Group to strengthen engineering capabilities and deliver quality service to clients and fund managers. Location London, England, United Kingdom Madrid, Madrid, Spain Sevilla, Seville, Spain

Apr 17, 2026
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Sierra logo
Full-time|On-site|Madrid

About UsAt Sierra, we are pioneering an innovative platform designed to enhance business interactions through advanced AI, fostering better and more human-centric customer experiences. Although primarily based in San Francisco, our team is expanding globally with offices in Atlanta, New York, London, France, Singapore, and Japan.Our operations are driven by core values: Trust, Customer Obsession, Craftsmanship, Intensity, and Family. These principles shape our culture and define our commitment to excellence in every endeavor.Our co-founders, Bret Taylor and Clay Bavor, bring a wealth of experience from top tech companies. Bret, as the Board Chair of OpenAI, has previously held leadership roles at Salesforce and Facebook, while Clay has an impressive history at Google, leading pivotal projects in AR/VR and product design.Your RoleDesign and Deliver Robust AI Agents: You will create and implement high-performance, reliable AI agents that are essential to Sierra’s operational success. These systems will be mission-critical, running in real-world applications across diverse industries including finance, healthcare, and commerce.Lead the Agent Development Life Cycle (ADLC): You will take full ownership of the ADLC, overseeing the process from pilot testing to deployment and continuous improvement. Your responsibilities will include building, optimizing, and advancing AI agents in live environments, while establishing best practices for the ADLC.Collaborate with Leading Enterprises and Innovative Startups: You will engage directly with executives from major enterprises to identify their critical business challenges, developing AI agents that revolutionize their operations. Additionally, you will partner with pioneering startups to integrate AI solutions that enhance their offerings.

Dec 5, 2025
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Nexthink logo
Full-time|On-site|Madrid

Join Nexthink as a Software Engineer and contribute to our innovative product platform. We are seeking a dynamic, talented individual who thrives in a fast-paced environment.

Apr 30, 2026
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lastminute.com logo
Full-time|On-site|Madrid

Role overview lastminute.com is hiring a Software Engineer in Madrid to focus on ETLs and microservices. This position involves designing, building, and maintaining workflows for extracting, transforming, and loading data. The engineer will also develop microservices that help expand and strengthen the company’s platform. What you will do Design and implement ETL processes to move and transform data Develop and maintain microservices that support key platform features Collaborate with the team to improve data workflows and enhance service reliability Requirements Background in ETL development and experience with microservices architecture Strong problem-solving abilities Comfort working on projects that directly affect the platform Interest in learning new technologies and pursuing continuous improvement Location This position is based in Madrid.

Apr 23, 2026
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Feverup logo
Full-time|On-site|Madrid

Role Overview Feverup is seeking a Creative Copywriter with a focus on performance marketing. This role centers on creating engaging copy for campaigns that connect with audiences and strengthen brand presence. What You Will Do Write clear, persuasive copy for performance marketing initiatives Work closely with teams across Feverup to develop campaign messaging Help shape the brand voice and ensure consistency across channels Location This position is based in Madrid.

Apr 20, 2026

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