Talent Pool - Senior Software Engineer - Spain

Ascendis Pharma is a pioneering global biopharmaceutical organization dedicated to transforming the lives of patients through innovative therapies. With a steadfast commitment to our core values—Patients, Science, and Passion—we leverage our cutting-edge TransCon® technology platform to develop therapeutics that address significant unmet medical needs.Headquartered in Hellerup, Denmark, with research facilities in Heidelberg, Germany, and additional offices throughout Europe and the United States, we are actively advancing our programs within the Endocrinology Rare Disease and Oncology sectors. Furthermore, we engage in collaborations aimed at developing TransCon-based products across various therapeutic areas and markets.If you are enthusiastic about contributing to our mission and cannot find a current job listing that matches your skills, we invite you to join our talent pool. We continually seek exceptional talent to expand our team, and your resume will be stored for future opportunities.Ascendis Pharma offers diverse roles in areas such as Research & Product Development, Commercial, GCP & GVP, Medical and Regulatory Affairs, HR, Finance & IR, Communications, and IT, among others. Please indicate your preferred department(s) in the application form.All resumes must be submitted in English and will be treated with confidentiality.

About SideSide Inc. is a premier global provider of video game development and services, offering innovative technical and creative solutions to some of the largest game developers and studios worldwide. Established in 2009, and leveraging over 30 years of expertise from our parent company based in Japan, we have expanded into a formidable global presence with over 15 studios across North America, Europe, South America, and Asia.Our extensive range of industry-leading services encompasses game development, art production, audio production, quality assurance, localization, localization QA, player support, community management, and data analysis.About This Opportunity:Please be aware that this listing is not for an immediate open position, but rather to build our Talent Pool for Co-Development Roles. By applying, you are expressing your interest in potential future project-based opportunities that align with your expertise.Opportunities will depend on client needs and project availability. As new projects are initiated or client proposals are developed, we will evaluate candidates from this pool and reach out to those whose skills best match the requirements of specific or prospective co-development opportunities.How We Engage with You:We value maintaining strong connections with our talent pool. As part of this community, you will receive regular updates, industry insights, and notifications about upcoming opportunities. We will also check in with you to confirm your availability and interest.Our recruitment teams will diligently vet and identify top candidates who align with project needs, ensuring you are matched with the right opportunity when it arises.Next Steps:If you are enthusiastic about contributing to groundbreaking projects and wish to be considered for future co-development roles, we invite you to apply for this listing. Although there may not be an immediate opening, your application will ensure you are part of our ongoing talent review for future positions. We are in the process of building a diverse and skilled pool of engineering talent in São Paulo to support both current and future co-development projects across a wide array of game genres and technical challenges. This is a general application for candidates with expertise in AI, Gameplay, Systems, Tools, Engine, Animation, Networking, Live Ops, DevOps, or Cloud Services.If you are an engineer with experience in any of these areas or wish to explore cross-functional opportunities, this is your chance to get noticed.

Greetings!We are thrilled to welcome you here. Although we may not have an open position for you at this exact moment, your enthusiasm to declare, “here I am!” is genuinely appreciated. As you likely already know, our mission is to enhance global health through innovative technologies, including Artificial Intelligence, among others.We are continually eager to connect with fresh talent. Please feel free to submit your CV, and we will retain it in our database for future opportunities that align with your skills.

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 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.

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.

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.

Ebury empowers ambitious businesses to achieve global growth, and we adopt the same philosophy for our team members. We promote innovation, collaboration, and problem-solving, creating an inclusive environment where everyone feels valued, supported, and empowered to thrive.If you are a collaborative individual eager to revolutionize how businesses operate on a global scale, we invite you to connect with us. Let's explore how Ebury can fast-track your career and enable you to shape the future.Senior Software Engineer (Money Flows)Ebury Madrid or Malaga Office - Hybrid: 4 days in the office, 1 day working from homeThe Engineering team at Ebury is searching for a Senior Software Engineer to play a pivotal role within our diverse team across South America and Europe. The successful candidate will be responsible for developing and optimizing our multi-currency account systems, as well as managing incoming funds and outgoing payment processes. Your contributions will be vital as we continually enhance our platform to deliver an unparalleled payment experience for our clients and operational teams.As a Senior Software Engineer, your technical expertise and skill set will be crucial to driving our innovation and growth. We value strong collaboration and commitment, working effectively within a distributed team.

At KingMakers, we are proud to be the leading platform for sports and iGaming entertainment in Africa, where millions of players engage daily across various markets. Since our inception with BetKing in Nigeria in 2018, we have rapidly expanded our footprint, most recently with the acquisition of SuperSportBet in South Africa. Our dynamic Product & Engineering organization boasts hubs across Europe and Africa, and we are committed to scaling our innovative technology platform in real-time.In this pivotal role, you will be at the forefront of our growth trajectory by driving our payments infrastructure. Every market expansion hinges on our payment systems, which handle every deposit, withdrawal, and transaction across all regions we serve. As we grow, you will face increasing complexities involving more markets, payment providers, and regulatory environments, alongside higher transaction volumes.This role is high-impact; your work will directly influence the financial infrastructure that supports our operations across multiple markets. Reliability, accuracy, and performance are paramount, and your engineering contributions will have immediate implications for both our players and the business. You will be an integral part of a collaborative squad, involved in the entire software development lifecycle, from design to production ownership.Key Responsibilities:Design, develop, and maintain payment processing services, integrating with third-party payment providers, PSPs, and financial networks.Manage features from inception to delivery, including technical design, testing, monitoring, and production support.Utilize event-driven architectures (Kafka, Service Bus) to facilitate reliable, asynchronous processing of high-volume financial transactions.Contribute to a microservices architecture built on .NET/C#, with REST APIs, gRPC, and Azure cloud infrastructure.Work closely with product managers, QA engineers, and other teams (Risk, Platform, Player Account) to create seamless user experiences.Participate in code reviews and contribute to the overall quality of engineering within the squad.Assist in diagnosing and resolving production incidents by identifying root causes.Engage in technical discussions to advocate for optimal solutions.

Allegis Global Solutions seeks a Recruitment Programme Specialist based in Madrid. This position focuses on talent acquisition within the staffing sector. Role overview The Recruitment Programme Specialist will develop and maintain strategies to attract and engage candidates. Building a strong and diverse talent pool is central to this role. Supporting recruitment processes and ensuring their success is also a key part of the position. Key responsibilities Develop talent acquisition strategies tailored for the staffing industry Build and maintain a diverse pool of candidates Support recruitment processes to help achieve hiring goals

Join Ebury, a leading fintech company revolutionizing the financial services landscape. We are looking for a Senior Software Engineer to be a pivotal part of our innovative team in Madrid. In this role, you will leverage your expertise to develop and enhance our cutting-edge financial solutions, collaborating with cross-functional teams to deliver exceptional products.

Speechify’s mission is to remove barriers to reading and make knowledge more accessible. More than 50 million people use Speechify’s text-to-speech tools to convert PDFs, books, Google Docs, news articles, and websites into audio. Our platform helps users read faster, understand more, and remember what matters. Speechify’s product lineup includes iOS, Android, and Mac apps, a Chrome extension, and a web app. Recent honors include Chrome Extension of the Year from Google and Apple’s 2025 Design Award for Inclusivity. Our fully remote team brings together nearly 200 people worldwide, including engineers, AI researchers, and specialists from companies like Amazon, Microsoft, and Google, as well as alumni of Stanford and high-growth startups such as Stripe, Vercel, and Bolt. We operate without a physical office, collaborating across time zones and backgrounds. Role Overview Speechify is hiring a Software Engineer for our data-focused AI team in Madrid, Spain. This role centers on building and maintaining the systems that collect and process the vast audio datasets used to train our models. The work blends infrastructure, engineering, and research, aiming to create high-quality datasets at petabyte scale while controlling costs. What You Will Do Find and connect new audio data sources to our ingestion pipeline. Manage and improve our cloud infrastructure for data ingestion, using Google Cloud Platform and Terraform. Work alongside scientists to optimize cost, throughput, and data quality, supporting our advanced AI models. Collaborate with the AI team and company leadership to shape the dataset roadmap for future consumer and enterprise products. What We Look For BS, MS, or PhD in Computer Science or a related field. At least 5 years of professional software development experience. Strong skills in bash and Python scripting within Linux environments. Professional experience with Docker and Infrastructure-as-Code (such as Terraform), plus hands-on work with at least one major cloud provider (we use GCP). Experience with web crawlers and large-scale data processing is a plus. Ability to manage multiple tasks and adapt to shifting priorities. Clear written and verbal communication skills.

Join aircall, a leading AI-driven customer communication platform, as we innovate the way businesses interact with their customers. With over 22,000 companies relying on our services, we integrate voice, SMS, WhatsApp, and AI into a unified workspace designed to enhance efficiency and drive revenue.Our vision is simple yet powerful: empower teams to work smarter, not harder. With tools like our AI Voice Agent for automating routine calls and AI Assist Pro for real-time guidance, we ensure that our teams can achieve peak performance and fast resolutions.Headquartered in Paris, with a strong presence in North America and multiple offices including Madrid, London, and New York City, aircall is backed by top-tier investors and is rapidly evolving through AI innovation across various product lines.At aircall, you will be part of a dynamic and ambitious team focused on impactful results. We prioritize ownership, continuous learning, and agile practices. If you thrive in a collaborative and fast-paced environment, you will flourish here.We are seeking a dedicated and enthusiastic Senior Software Engineer to enhance our engineering department and contribute to our innovative projects.In this role, you will oversee the design, development, deployment, and maintenance of essential features that deliver significant value to our customers. You will champion operational excellence and best practices while mentoring your team and the wider engineering community.Your work will focus on elevating quality, excellence, and agility within our delivery processes. You will work primarily with NodeJS and Typescript, ensuring our solutions are effectively hosted on AWS.

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.

Location: Madrid Office About Aircall Aircall builds an AI-driven customer communications platform used by over 22,000 businesses worldwide. Our product brings together voice, SMS, WhatsApp, and AI features in a single workspace, helping teams boost revenue, resolve issues faster, and scale their operations efficiently. Headquartered in Paris, Aircall has a strong global footprint with offices in Seattle, Madrid, London, Berlin, San Francisco, New York City, Sydney, and Mexico City. Our company is growing quickly, supported by leading investors and advances in AI across our product lines. Our Culture We focus on customer satisfaction, data-driven decisions, and meaningful results. Team members are encouraged to take ownership, keep learning, and act quickly but thoughtfully. Collaboration, trust, and impact shape our daily work. About the New Product Unit Aircall is launching a New Product Unit dedicated to advancing autonomous sales. The team is building an AI Orchestration Layer that records and understands customer interactions across calls, video, email, and WhatsApp. This system will automate sales workflows such as CRM updates, follow-ups, task creation, and coaching insights. Our long-term vision is a self-optimizing Sales OS powered by specialized AI agents working together to improve revenue processes. Role Overview: Senior Backend Software Engineer (Python) This position calls for an experienced backend engineer with strong Python skills, ready to work beyond traditional backend boundaries. The role suits someone who values both clean architecture and practical progress, and who can balance high-quality work with the need for speed in a startup setting. What You Will Do Tackle complex technical challenges, including distributed systems, AI orchestration, architecture, performance, and scalability Contribute to the design and implementation of backend systems for the AI Orchestration Layer Work closely with product and engineering teams to deliver new features Iterate quickly, shipping solutions and learning from feedback Who Will Thrive Engineers who enjoy solving difficult problems and making architectural decisions Those who can dive deep into technical details while keeping an eye on rapid delivery People who take pride in their work and appreciate the pace of a growing company

At Celonis, we are at the forefront of Process Intelligence technology, recognized globally as a leader among the fastest-growing SaaS companies. Our mission is to harness the power of AI, data, and intelligence to revolutionize business processes, and we're seeking talented individuals like you to help us achieve this vision. Are you ready to make an impact?The Team:Join our dynamic Celonis Support Services team, a vital component of our 3-Level Support model, as a dedicated 2nd Level Technical Support Engineer. Your base will be in Madrid, where you will report directly to the Director of Customer Support.The Role:As a Senior Software Support Engineer, you will be an essential player in diagnosing and resolving intricate technical and product-related challenges across the Celonis Product Suite. You will act as a vital link between our global customers, partners, and our internal Value Engineering & Delivery, Development, and Product Management teams. We are looking for someone who is enthusiastic about becoming a deep technical expert in Celonis infrastructure and software while contributing to a customer-centered SaaS environment.Your Responsibilities:Focus on expert technical analysis, resolution of complex incidents, and driving ongoing improvements in support operations:Deliver 2nd Level technical support for customer inquiries related to Celonis Systems & Products.Act as a Technical Contact for Premier Customers.Take ownership of complex cases by accepting, qualifying, driving, and resolving them in alignment with ITSM processes and KPI standards.Conduct in-depth analysis, diagnosis, and recovery of complex technical issues, frequently collaborating with customers and internal Product and Engineering teams.Engage in Root Cause Analysis (RCA) activities to enhance the team’s support Knowledge Base.Actively contribute to Continual Service Improvement (CSI) initiatives, including Knowledge Centred Service (KCS).Prepare and present Webcasts on selected technical topics for customers and internal support staff.Participate in an on-call schedule to ensure continuous global coverage.

Welcome to Adyen! At Adyen, we revolutionize the financial technology landscape by providing a comprehensive suite of payment, data, and financial solutions. Our esteemed clients include industry giants like Meta, Uber, H&M, and Microsoft, solidifying our position as the go-to financial technology platform. We are driven by ambition and innovation in every aspect of our work. We believe in fostering a dynamic environment where talented individuals can thrive. Our culture encourages ownership, collaboration, and problem-solving amongst diverse teams facing unique technical challenges. Together, we develop ethical and innovative solutions that empower businesses to achieve their goals efficiently. About Our Financial Products: Adyen is expanding its horizons beyond payments, creating a comprehensive range of embedded financial services tailored for platforms, marketplaces, SaaS businesses, on-demand services, and crowdfunding initiatives. Our mission is to facilitate seamless global management of payments and financial services through cutting-edge API integrations and hosted solutions. Our innovative platform enables businesses to: Execute onboarding, verification, and compliance processes across diverse markets. Manage transactions and expedite payouts and bank transfers in preferred currencies. Provide value-added services such as capital lending and the issuance of payment cards and bank accounts. Our team is dedicated to developing the technology that underpins this unified platform, focusing on various critical areas. Your Role: Develop and maintain our high-performance distributed platform. Contribute to architectural design decisions ensuring our platform's scalability. Mentor and coach junior engineers, fostering a culture of feedback and continuous improvement. Collaborate with a diverse and inclusive team. Launch quickly and iterate frequently, impacting businesses and customers from day one. Identify and enhance platform components for greater robustness and scalability. Work across teams and time zones to drive initiatives, review code, and embrace constructive feedback.

Role Overview Speechify is looking for a Software Engineer focused on iOS Core Product to join the team in Madrid, Spain. This position centers on building and improving iOS applications that reach a broad audience. The work involves shaping the user experience and making sure each release meets a high standard of quality. What You Will Do Develop and refine features for Speechify’s iOS apps Work closely with colleagues from different disciplines to deliver new functionality Contribute to the design and implementation of updates that improve the user experience

At Datadog, we are revolutionizing how engineers monitor, secure, and scale their infrastructure and applications, driving reliability and performance for thousands of businesses. We process trillions of data points daily and address challenges related to scale, speed, and resilience. We are in search of seasoned backend engineers eager to take charge of vital services and enhance their expertise in distributed systems. If you have experience in building APIs, data pipelines, or backend tools, this position offers an opportunity to expand your influence while mastering the design and operation of high-scale, high-availability systems that underpin observability and security solutions utilized by engineers globally. At Datadog, we cherish our office culture—the relationships it fosters, the creativity it encourages, and the teamwork it cultivates. We embrace a hybrid work model, empowering our employees to achieve a work-life balance that suits them best.