Senior Fullstack Engineer at Aircall | Madrid

Role overview inetum2 is seeking a Senior DevSecOps Engineer / Technician based in Madrid. The focus of this position is to embed security throughout the DevOps lifecycle, ensuring that every stage from development to deployment considers security requirements. This role requires close coordination with various teams to maintain strong security standards across all application workflows. What you will do Integrate security practices into DevOps processes and pipelines Collaborate with engineers, developers, and operations staff to support secure development and deployment Advise teams on ways to strengthen security posture while enabling agile delivery Collaboration Regular interaction with cross-functional teams is central to this role. Sharing expertise, providing guidance, and helping to establish secure practices across the organization are key parts of the day-to-day work.

Why Join dLocal?At dLocal, we empower leading global brands to facilitate payments across 40 countries in emerging markets. Our expertise helps businesses enhance conversion rates and simplifies their payment expansion journeys. Acting as both a payment processor and a merchant of record, we enable our clients to tap into the fastest-growing emerging markets.Joining our team means being part of a vibrant global family. With over 1500 colleagues from more than 30 nationalities, you’ll have the chance to develop an international career that impacts millions of lives daily. We are innovators, unafraid of challenges, and prioritize our customers. If this resonates with you, we believe you’ll excel in our collaborative environment.

Join our dynamic team as a Senior Electrical Engineer at AECOM in Madrid. In this pivotal role, you will leverage your expertise to design and implement cutting-edge electrical systems for a variety of projects. Collaborating closely with multidisciplinary teams, you will ensure that our engineering solutions meet the highest standards of quality and innovation.

Join our dynamic team at AECOM as a Senior Roadway Engineer, where your expertise will shape the future of transportation infrastructure. In this pivotal role, you will lead design projects, ensure compliance with industry standards, and collaborate with a diverse group of professionals to deliver innovative solutions.

Join our esteemed team at AECOM, where we are dedicated to creating innovative solutions in the field of geotechnical engineering. As a Senior Geotechnical Engineer, you will lead critical projects, providing expertise in site investigations, foundation design, and soil mechanics. Your role will involve collaborating with multidisciplinary teams to ensure the successful execution of projects while adhering to safety and quality standards.

As a Senior Backend/Platform Engineer at causaprima, you will be responsible for the foundational platform utilized by our agents. Your expertise will enhance our event-driven architecture, streamline data pipelines, integrate with customer accounting systems, and ensure that our infrastructure is reliable, auditable, and efficient.Key ResponsibilitiesEvent Store Management — Design and maintain an append-only PostgreSQL database featuring tamper-evident hash chaining, real-time event distribution, agent replay, recovery capabilities, and schema versioning.Cryptographic Signature Infrastructure — Establish key management and signature verification systems for all agent events while implementing approval chains for external actions.Workflow Constraint Engine — Develop a gateway to verify authorization for any external actions including emails, payments, or API calls.PII Vault & GDPR Compliance — Create isolated, encrypted storage solutions for personal data, ensuring compliance with the right to erasure and data residency requirements.Multi-Tenancy Management — Implement row-level security and tenant isolation across all data stores, including tenant-scoped LLM API keys.Authorization Framework (Cerbos) — Utilize attribute-based access control for both agents and humans, ensuring deterministic policy evaluation where LLMs do not make authorization decisions.MCP Security Layer — Develop authentication, capability-based scoping per partner, and rate limiting for the Model Context Protocol endpoint.Database Architecture — Focus on PostgreSQL schema design, indexing strategies, performance tuning, and read replica topology.

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.

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.

At Groupon, we're not just a marketplace; we are a vibrant ecosystem where consumers discover exciting experiences and local businesses flourish. Having partnered with over a million merchants globally, we connect more than 16 million customers to exceptional deals across diverse categories. In an era largely influenced by e-commerce giants, Groupon distinctly positions itself as a platform dedicated to empowering local businesses through performance-driven initiatives.We're embarking on a transformative journey to revolutionize our operations, fueled by an unwavering commitment to results. Despite our extensive workforce spanning multiple continents, we cultivate a culture that promotes innovation, encourages calculated risk-taking, and celebrates success. Here, your impact can be immediate and significant, as we balance the resources and scale of a large organization with the autonomy of a smaller company.Design the "Source of Truth" for a Global MarketplaceAt Groupon, data is central to our mission. We are seeking a Senior Analytics Engineer to connect raw data infrastructure with actionable business insights. Your role will extend beyond writing queries; you will be responsible for architecting the semantic layer of our data warehouse, ensuring every dashboard, AI model, and executive decision is built on a robust foundation of trust.This position is a high-impact Individual Contributor role for someone who is passionate about SQL, data modeling, and solving intricate problems at a global scale.Embrace the AI Advantage At Groupon, we don’t just analyze AI; we actively build with it. You will engage in innovative projects that leverage AI to enhance our business processes and customer experiences.

Role overview Miratech is hiring a Senior Data Engineer in Madrid. This position focuses on designing and building scalable data solutions that support key business needs. The Senior Data Engineer works closely with teams from different disciplines to improve data workflows and maintain data quality. What you will do Design and implement scalable data architectures Collaborate with cross-functional teams on data-related projects Optimize data processes for efficiency and reliability Ensure data integrity across systems Apply expertise in modern data technologies

Join AECOM as a Senior Tunnel & Geotechnical Engineer in Madrid, where you will play a pivotal role in delivering innovative engineering solutions for complex underground projects. You will lead design and analysis efforts, collaborating with multidisciplinary teams to ensure project success. Your expertise will be key in advancing our capabilities and delivering high-quality results for our clients.

Join AECOM as a Senior Bridge and Structural Engineer in Madrid, where you will lead innovative projects and collaborate with a talented team of engineers. In this role, you will be responsible for the design, analysis, and management of bridge and structural engineering projects, ensuring compliance with industry standards and regulations.

Join our dynamic team at AECOM as a Senior Engineer specializing in Bridges and Structures. In this pivotal role, you will lead the design and analysis of complex structures, ensuring innovative and sustainable solutions for our projects.As a Senior Engineer, you will collaborate with multidisciplinary teams, mentor junior engineers, and engage with clients to deliver high-quality outcomes that exceed expectations. Your expertise will be instrumental in shaping the future of infrastructure in our communities.

At Groupon, we are not just a marketplace; we are a vibrant community where customers explore new experiences and local businesses thrive. With over a million merchant partners globally, we've connected more than 16 million customers to incredible deals across diverse categories. In a landscape often dominated by e-commerce giants, Groupon remains uniquely dedicated to empowering local businesses to succeed on a performance basis.We are on an ambitious journey to revolutionize our business with an unwavering focus on achieving impactful results. Despite our large workforce spread across continents, we foster a culture that encourages innovation, rewards risk-taking, and celebrates success. Here, your impact can be immediate as we combine the resources of a large company with the agility of a smaller one—giving you the autonomy to make a significant difference.About the RoleAs a Senior Go-To-Market Engineer at Groupon, you will design and build the automated systems that are the backbone of our revenue engine, facilitating how we identify, enrich, qualify, and engage merchants in international markets. This high-impact role allows you to contribute directly to our pipeline and revenue generation. You will work closely with cross-functional teams, including Sales, Marketing, and Data, while taking full ownership of Groupon's Go-To-Market technical infrastructure. Your contributions will ensure our teams can operate efficiently across multiple markets while upholding data quality and operational efficiency.

Role overview The Senior Fire and Risk Engineer position at AECOM in Madrid centers on fire safety and risk management across a variety of complex projects. This role draws on technical expertise to develop solutions that satisfy safety standards and regulatory requirements. Main responsibilities Provide guidance on fire safety strategies and risk reduction measures for both ongoing and upcoming projects. Work with multidisciplinary teams to help ensure project objectives are consistent with safety regulations. Offer technical input during project execution, focusing on compliance and recognized safety practices. Collaboration and team environment This role involves close cooperation with other experienced professionals at AECOM. Team members share knowledge, communicate openly, and work together to achieve high standards of quality and safety in every project.

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!

Turner Townsend is looking for a Senior Data Engineer in Madrid to help shape the company's data strategy. This position centers on designing, building, and maintaining data pipelines and architecture to support business intelligence and analytics across the organization. Role overview The Senior Data Engineer will work closely with teams from different departments, ensuring that data is reliable, accessible, and secure. The work involves both hands-on development and ongoing support of the systems that deliver insights for key projects. What you will do Design and implement data pipelines and architecture Maintain and monitor data systems to ensure integrity and availability Collaborate with cross-functional teams to support analytics and reporting needs Contribute to data security and compliance practices Requirements Experience building and maintaining data pipelines and architectures Strong understanding of data integrity, availability, and security principles Ability to work collaboratively with technical and non-technical teams

Ebury empowers ambitious businesses to achieve global expansion, and we apply the same philosophy to our workforce. We promote innovation, collaboration, and problem-solving, creating an environment where every employee feels valued, supported, and empowered to thrive.If you are a team player eager to revolutionize global business operations, reach out to us. We would love to explore how Ebury can enhance your career and help you shape the future.Senior Software EngineerMadrid Office - Hybrid: 4 days in the office, 1 day working from homeThe FinCore Engineering team at Ebury is looking for a talented Software Engineer to play a vital role in our diverse team located across South America and Europe. The successful candidate will be responsible for developing and optimizing our multi-currency accounting system and facilitating foreign currency exchanges. Your contributions will be essential as we strive to elevate our platform and deliver the best FX experience for our clients and operational teams.As a Senior Software Engineer, your technical expertise will be crucial to our ongoing innovation and growth. We prioritize collaboration and commitment, functioning in a distributed model where effective teamwork is essential.

Join our dynamic team at Veolia Environnement S.A. as a Senior Engineer specializing in Facilities Maintenance Management. In this pivotal role, you will lead a team of skilled professionals to ensure the optimal functioning and maintenance of critical facilities. Your expertise will be essential in driving efficiencies, implementing best practices, and ensuring compliance with safety regulations.