Backend QA Engineer in Madrid

Join the Digital Revolution!At Aleph, we are not just participating in the digital advertising landscape; we are actively shaping its future. As representatives of the world’s leading platforms, including TikTok, Amazon, Google, and nearly 55 others, we operate across 130+ markets worldwide.Our mission is to empower advertisers and brands to harness the full potential of these platforms' advertising capabilities. By nurturing long-term partnerships, we create limitless opportunities for businesses to advertise effectively at both local and global levels.With a presence spanning multiple continents, Aleph offers you the opportunity to join a rapidly growing and innovative team where your contributions will have a direct impact. If you are ambitious, forward-thinking, and eager to thrive in a dynamic global environment, Aleph is the ideal place to advance your career.We are looking for a talented Senior Backend Developer who excels in designing, building, and maintaining high-throughput, event-driven systems. In this pivotal role, you will be instrumental in shaping our core platform, making vital architectural decisions, and mentoring fellow engineers. Your responsibilities will include ensuring reliable communication between our asynchronous services, facilitating seamless data flows, and enabling our entire ecosystem to scale according to demand. If you are passionate about message queues, stream processing, and the intricacies of distributed systems, we invite you to apply for this exciting opportunity.

Role overview neoris is looking for a Java Developer to join the team in Madrid. This position focuses on building and maintaining Java applications that support client projects and digital solutions. What you will do Design, develop, and maintain applications using Java Work closely with colleagues from different disciplines to deliver project goals Support high standards for software quality throughout the development process Location This role is based in Madrid, Spain.

Join our dynamic team at Aleph as a CRM Architect, where you will play a pivotal role in designing and implementing innovative Customer Relationship Management solutions. Your expertise will help us to enhance our customer engagement strategies and improve overall user experience.

Join Aircall, a unicorn and AI-driven customer communications platform, serving over 22,000 companies globally. We are innovating the way businesses communicate by seamlessly integrating voice, SMS, WhatsApp, and AI into a unified workspace.Our growth stems from a straightforward principle: empower teams to work more efficiently. Our AI Voice Agent automates routine calls, AI Assist enhances post-call tasks, and AI Assist Pro provides real-time support, enabling individuals to excel in their roles. This leads to increased revenue, quicker resolutions, and confident team scalability.With headquarters in Paris and a robust North American presence in Seattle, alongside teams in Madrid, London, Berlin, San Francisco, New York City, Sydney, and Mexico City, we have developed a beloved product and a rapidly expanding business, supported by top-tier investors and driven by swift AI advancements across various product lines.At Aircall, you will be part of a dynamic organization. We are ambitious, focused on product excellence, and committed to execution, ensuring visible impacts, quick decisions, and genuine growth.Our Work Culture: We are deeply customer-focused, data-informed, and dedicated to delivering significant outcomes. We prioritize ownership, ongoing learning, and a thoughtful pace. If you thrive in a collaborative, fast-paced setting where trust and impact are key, you will feel right at home here.Role Overview:As a Senior Backend Software Engineer, you will play a crucial role in designing, developing, deploying, and maintaining essential features that enhance customer value through voice integration.You will be expected to advocate for best practices and provide mentorship within your team and across the engineering department.We are driven by quality, excellence, and agility, and you will contribute to elevating these standards.Utilizing a diverse range of backend technology stacks, tailored to meet specific needs and consistently hosted on AWS, we create resilient services that add value to voice integration and seamlessly connect with our clients' critical business tools such as CRM, Helpdesk, E-Commerce, and more.

Join our innovative team at Sopra Steria as a Senior Java Developer! In this pivotal role, you will be responsible for developing high-quality software solutions, optimizing application performance, and collaborating with cross-functional teams to deliver exceptional results. Your expertise in Java will be key to driving our projects forward.

Managing expenses shouldn’t be a headache. At Pleo, we’re revolutionizing the way businesses handle spend management by creating solutions that simplify financial processes for both finance teams and employees. Our goal is to empower organizations to 'go beyond' traditional methods.Since our inception 10 years ago, we’ve embraced the philosophy of ‘Pleo’, meaning ‘more than you’d expect’, which has been pivotal to our success.We are currently at a significant juncture in our growth journey; every decision we make affects our more than 40,000 customers, our business, and our collective achievements. We are looking for individuals who take pride in identifying customer needs, transforming complex challenges into straightforward solutions, and respectfully challenging the status quo. With our ambitious goals ahead, we are a dynamic and diverse team of over 850 individuals from more than 100 nationalities, dedicated to shaping the future of business spending.About the RoleWe are seeking a skilled Backend Engineer to join our innovative team at Pleo. In this position, you will play a crucial role in building and scaling our backend systems, engaging in exciting projects as we expand our product and service offerings. If you are passionate about solving intricate technical challenges and thrive in a culture that values transparency, collaboration, and innovation, we invite you to apply.What You’ll Be DoingAs a Backend Engineer, your responsibilities will include:Designing, building, and maintaining scalable microservices primarily using Kotlin.Collaborating with cross-functional teams to develop innovative solutions across various domains such as Platform, Services, and SMB.Analyzing system performance and implementing optimizations to ensure high reliability and scalability.Participating in code reviews and post-mortems while mentoring fellow engineers.Proactively addressing technical debt and guiding the team through challenges and migrations.What You BringThis role is ideal for you if you possess:Experience in server-side languages, particularly Kotlin, along with expertise in distributed systems, microservices, and cloud environments (e.g., AWS, Kubernetes).Proficiency with relational databases such as PostgreSQL and familiarity with testing frameworks (e.g., JUnit, Testcontainers).

About the Role airapps is looking for a Backend Engineer in Madrid to help shape the systems behind our platforms. This role centers on building and improving backend architecture that supports our applications. What You Will Do Design, implement, and maintain scalable backend systems Work closely with teams across the company to deliver new features and solutions Contribute to the ongoing improvement of our backend platforms Location This position is based in Madrid.

Join our dynamic team at Rentokil Initial as a Pest Control Technician in Madrid, Spain! In this vital role, you will be responsible for ensuring the safety and satisfaction of our customers by effectively managing pest control services. You will utilize advanced techniques and equipment to identify and eliminate pests, ensuring our clients' environments remain pest-free.

Role overview aleph is seeking an SAP FICO Consultant based in Madrid, Spain. This role centers on supporting clients with SAP Financial Accounting and Controlling, aiming to enhance their financial processes and results. What you will do Work closely with teams from different areas to deliver SAP FICO solutions tailored to client needs Use your knowledge of SAP Financial Accounting and Controlling to solve client challenges Take part in projects that strengthen clients' financial operations Requirements Proactive mindset and attention to detail Strong skills in problem solving Experience working with SAP and a desire to make a meaningful contribution This position is a good fit for those who enjoy working with SAP and want to help clients achieve better financial outcomes as part of the aleph team.

About Aleph Aleph connects brands with audiences through digital advertising. As a partner to major platforms including TikTok, Amazon, and Google, Aleph operates across more than 130 markets and represents nearly 55 digital platforms worldwide. The company builds partnerships that help clients get the most from their advertising investments. Learn more at https://alephholding.com/. Workplace Architect Role , Madrid, Spain The Workplace Architect will join a team focused on expanding digital advertising solutions. Aleph values initiative and recognizes contributions that help businesses connect with audiences locally and globally. This role offers the chance to work alongside experts in an environment where skills and ideas matter.

Join our dynamic team at Sopra Steria as a Senior Developer in Madrid! We are looking for an innovative and experienced professional to contribute to our exciting projects in a collaborative environment. In this role, you will leverage your technical skills to deliver high-quality software solutions while mentoring junior developers.

Join Convera as a Sales Development Representative in our vibrant Madrid office! In this hybrid role, you will be pivotal in driving our sales strategy, engaging with potential clients, and helping to expand our market presence. Your ability to connect with prospects will contribute to our overall success and growth.

Join the dynamic team at inetum2 as a Senior Ignition Developer, where you will be instrumental in developing and implementing innovative solutions using Inductive Automation's Ignition platform. You will work in a collaborative environment that values creativity and forward-thinking, helping our clients achieve their automation goals.

Join the leading eCommerce agency and take your career to the next level!Job OverviewInteractiv4 is seeking talented Backend Magento Developers for our offices in Madrid, Barcelona, and Zaragoza.If you have a keen eye for detail, a passion for writing clean code, and a desire to optimize processes, we want you on our team. We value professional development and continuous learning, making us the perfect fit for your career aspirations.RequirementsEducation: Higher Degree or Engineering, preferably in Computer Science, Telecommunications, Mathematics, or related fields.Proven experience in:Magento architecture and configuration.GIT, MVC frameworks, PHP, HTML, JavaScript, CSS, SASS.Mockup integration and third-party system integration, as well as database design and modeling.Preferred QualificationsKnowledge of UX design, SEO, Photoshop, Knockout, React, Redux, and code quality testing tools will be a plus.Advanced English proficiency and certifications in Magento and Akeneo are desirable.What We OfferJob stability with a permanent contract and opportunities for professional growth.Join a highly skilled team in a technologically advanced environment utilizing cutting-edge market solutions.Social benefits including meal vouchers, childcare support, transportation allowances, etc.

About Speechify Speechify helps people access information by listening instead of reading. Users can listen to articles, cloud documents, and books on their phones, making learning more flexible and accessible. As the top-ranked app in its category, Speechify continues to grow quickly and reshape how people consume audio information. Role Overview The Core Experiences Team builds and maintains the services and SDKs that support Speechify’s product across many platforms. As a Senior Software Engineer in Madrid, this role combines product development with infrastructure work. The position suits someone who enjoys designing reliable APIs, creating straightforward systems, and improving user experience through thoughtful engineering decisions. What You Will Do Collaborate with Product Teams to define project scopes, improve processes for faster customer feedback, and balance integration and user experience needs across teams. Deliver solutions through Speechify’s cross-platform SDK. Improve existing features for better performance, including faster load times and smarter parsing, by refining abstractions and algorithms. Build cloud functions, lightweight backend services, and jobs using Kotlin. What We Look For Strong systems thinking and a preference for simple, effective design. Ability to move quickly, generate ideas, and distinguish between immediate deliverables and projects that need more time. Focus and adaptability within a startup setting, knowing when to collaborate and when to work independently. Experience working with designers, marketers, and product managers; able to inspire and negotiate across disciplines. Location: Madrid, Spain

Join Aircall as a Senior Backend/Platform Engineer, where you will play a crucial role in enhancing our platform's infrastructure and backend systems. You will collaborate with cross-functional teams to design and implement scalable solutions that ensure seamless communication for our users. If you are passionate about crafting high-performance systems and thrive in a dynamic environment, we would love to hear from you!

We are seeking a dynamic and results-oriented Senior Key Account Manager to join our team in Madrid, Spain. In this key role, you will be responsible for driving growth and maintaining strong relationships with our most important clients. As a Senior Key Account Manager, you will formulate and implement strategies that align with the company’s objectives while ensuring client satisfaction and loyalty.

Managing corporate spending can often be a challenging endeavor, with convoluted processes that hinder efficiency for finance teams and employees. At Pleo, we are revolutionizing this process. We provide financial solutions designed to simplify money management, making it seamless and remarkably efficient for everyone involved. Our mission is to empower businesses to 'go beyond' traditional spending methods.The name 'Pleo' translates to 'more than you’d expect', and this philosophy has underpinned our success over the last decade.We find ourselves at a crucial juncture in our growth; every decision we make impacts over 40,000 customers and is vital to our mutual success. We seek individuals who are committed to understanding customer needs, transforming complex challenges into straightforward solutions, and questioning the status quo—all while aiming high. With ambitious goals propelling us forward, we embrace the journey of discovery and innovation. Our team consists of over 850 talented individuals representing more than 100 nationalities, all dedicated to shaping the future of business spending.About the RoleWe are in search of a Senior Backend Engineer to join our dynamic team at Pleo. In this role, you will play a key part in developing and scaling our backend systems while engaging in exciting projects as we enhance our product and service offerings. If you are passionate about tackling complex technical challenges and thrive in a culture that prioritizes transparency, collaboration, and innovation, this position is made for you.Your ResponsibilitiesAs a Senior Backend Engineer, you will:Lead the design, development, and maintenance of scalable microservices primarily using Kotlin.Collaborate with cross-functional teams to create innovative solutions across various domains including Platform and Services.Analyze system performance and implement optimizations to ensure high reliability and scalability.Participate in code reviews, conduct post-mortems, and mentor fellow engineers.Proactively address technical debt and guide the team through technical challenges and migrations.QualificationsYou will excel in this role if you possess:Strong expertise in server-side programming, particularly in Kotlin, and experience with distributed systems, microservices, and various cloud environments such as AWS and Kubernetes.Proficiency in relational databases such as PostgreSQL, testing frameworks (e.g., JUnit, Testcontainers), and observability tools like Grafana.

Join the Future of Transport!At Bolt, we are on a mission to revolutionize urban mobility. With over 200 million satisfied customers across more than 50 countries, we are one of the fastest-growing startups globally. Our platform connects users to a variety of transport options, including cars, motorcycles, and scooters, making commuting fast, convenient, and affordable for everyone.About UsAs one of Europe and Africa's leading tech companies, our success is driven by our dedicated team. We foster an inclusive workplace where everyone feels welcome, irrespective of race, color, religion, gender identity, sexual orientation, age, or disability. Together, let’s create cities that prioritize people over cars!Your RoleWe are seeking a passionate Senior Operations Specialist to join our Fleets & Vehicles team in Madrid. You will play a crucial role in enhancing operational performance and profitability across our fleet ecosystem, assisting both independent fleet partners and captive structures.Your responsibilities include monitoring operational and financial performance, pinpointing areas for improvement through data analysis, and spearheading cross-functional initiatives to drive growth and efficiency. Collaborating closely with the Operations Manager, you will aid in market-level P&L management, forecasting, analyzing revenue and cost drivers, and translating insights into actionable operational strategies. Your collaborative efforts with teams in Business Development, Finance, Marketing, Policy, and Product will ensure successful execution.