Software Engineer (Python) at Lynxtech | 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 …

Join Altersolutions as a Python Developer and be part of a dynamic team in Madrid! We are looking for passionate and talented individuals to contribute to exciting projects and drive innovation.

Join our dynamic team at Sopra Steria as a Python Developer in a hybrid work environment in Madrid. We are searching for a passionate individual who is ready to take on challenging projects and contribute to innovative solutions. Your expertise in Python will play a crucial role in developing and maintaining high-quality software that meets our clients’ needs.

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.

Lynx Financial Crime Tech is seeking a talented Elasticsearch Specialist Engineer.WHY YOU SHOULD CONSIDER THIS OPPORTUNITYAt Lynx Financial Crime Tech S.A., we are an AI-driven software company specializing in detecting and predicting behavioral patterns in financial transactions. Led by a team of experts from both the finance and academic sectors, we develop and deploy cutting-edge self-learning AI technologies. Our platform excels in low-latency transaction processing technologies, available both on-site and in the cloud.We prioritize VISION, AGILITY, and SPEED to deliver exceptional customer experiences, forging lasting and trustworthy relationships with leading financial institutions, fintechs, and commercial enterprises worldwide.We embrace a strong risk culture and expect every team member, regardless of position, to maintain a proactive and responsible approach to risk management.Lynx is proud to be an equal opportunity organization, regardless of gender identity, culture, or disability. Our mission is to empower more individuals and businesses to thrive. YOUR ROLEAs an Elasticsearch Specialist Engineer, your role will be pivotal in the architecture, maintenance, and optimization of our Elasticsearch clusters, which are essential for the real-time search, correlation, and analysis of financial transaction data.You will participate in:Designing and implementing efficient architectures using Elasticsearch.Performance analysis and tuning of queries, shards, indices, and nodes.Integrating Elasticsearch with other components of our AWS platform.Diagnosing and resolving issues related to searches and storage.Continuous improvement of system monitoring, scalability, and resilience.Collaborating with data engineers and backend developers. EXPERIENCE4+ years of experience working with Elasticsearch in production environments.Strong knowledge of performance tuning and optimization.

Join aircall, a leading unicorn in the customer communications space, revolutionizing how businesses engage with their customers through an AI-powered platform. With over 22,000 global clients, we merge voice, SMS, WhatsApp, and AI into a unified workspace that enhances team efficiency and customer satisfaction.Our mission is simple: empower teams to achieve more by working smarter. Our innovative AI Voice Agent automates routine calls, while AI Assist streamlines post-call tasks, and AI Assist Pro provides real-time insights to optimize performance. This results in increased revenue, quicker issue resolution, and scalable teams.Headquartered in Paris, with a robust presence in North America through our Seattle office, we also have teams in Madrid, London, Berlin, San Francisco, New York City, Sydney, and Mexico City. Our product is beloved by customers, and our rapid growth is supported by top-tier investors and cutting-edge AI advancements across our offerings.Our Work Culture: At aircall, we prioritize customer focus, data-driven decision-making, and significant outcomes. We cherish ownership, continuous learning, and a sense of urgency. If you thrive in a collaborative and fast-paced environment where trust and impact are valued, you will fit right in.As a Software Engineer, you will play a pivotal role in designing, developing, deploying, and maintaining critical business features that enhance customer value. Your day-to-day will involve ensuring operational excellence, utilizing metrics, and adhering to best practices.Driven by quality, excellence, and agility, you will help elevate our delivery processes. Leveraging NodeJS and Typescript within our AWS-hosted environment, you will create resilient services that seamlessly integrate with essential customer tools such as CRM, Helpdesk, and E-Commerce platforms.

Join Speechify as a Software Engineer on our Platform team in Madrid! In this role, you will collaborate with a dynamic group of engineers to develop innovative software solutions that enhance our platform's capabilities. You will be responsible for writing high-quality code, debugging issues, and contributing to the overall architecture and design of the platform.

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.

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.

Join our dynamic global team as a Software Engineer and take charge of the quality, development, and execution of our cutting-edge software products.As a key member of our technology department, you will collaborate with a talented and diverse group of professionals located worldwide, including cities like Barcelona, New York, London, Manchester, Bucharest, and India. If you're eager to contribute to a thriving company and make an immediate impact, we want to hear from you!About TransPerfect – TechOps:The TransPerfect TechOps team has played a crucial role in the company’s success for over a decade, delivering innovative technology and services that have significantly improved the experiences of our clients and colleagues. From optimizing workflows for our teams to developing the core services that power our GlobalLink platform, we create scalable client interfaces that empower users to navigate complex systems with ease.

Join the dynamic TransPerfect team as a Junior Software Engineer in Madrid, where you will play a pivotal role in ensuring the quality, development, and execution of our innovative software products.As part of our global technology department, you will collaborate with a diverse group of talented professionals situated in key locations such as Barcelona, New York, London, Manchester, Bucharest, and India. If you are eager to contribute to a rapidly growing company and make an immediate impact, we encourage you to apply!About TransPerfect TechOps:The TransPerfect TechOps team has been instrumental in our success for over a decade. We deliver cutting-edge technology solutions and services that greatly enhance the efficiency of our clients and colleagues. From streamlining workflows to developing essential services that underpin our GlobalLink platform, our mission is to create scalable client interfaces that empower users to navigate complex ecosystems effortlessly.

Join our dynamic global team as a Software Engineer, where you will play a crucial role in ensuring the quality, development, and implementation of our innovative software products. As part of a diverse technology department, you will collaborate with talented professionals from cities like Barcelona, New York, London, Manchester, Bucharest, and India. If you're eager to contribute to a growing company and make a significant impact, we would love to hear from you!About TransPerfect – TechOps:The TransPerfect TechOps team has been instrumental in our company's success for over a decade, delivering technology and services that have greatly enhanced the experiences of our clients and colleagues. From improving workflows for team members to developing core services that underpin our GlobalLink platform, we strive to create scalable client interfaces that make complex ecosystems accessible to everyone.

Join our innovative team as a Junior Software Engineer focused on backend development in .NET. You will play a crucial role in ensuring the quality, development, and execution of our software products.As part of our dynamic technology department, you'll collaborate with a diverse group of professionals from cities like Barcelona, New York, London, Manchester, Bucharest, and India. If you're eager to make an immediate impact in a growing company, we are excited to hear from you!About TransPerfect – TechOps:The TransPerfect TechOps team has been instrumental in our success for over a decade, delivering cutting-edge technology and services that enhance the workflow for our clients and colleagues. From optimizing our GlobalLink platform to creating user-friendly client interfaces, your contributions will help simplify complex systems for novice users.

Role Overview Vonage seeks a Java Software Engineer for its Cloud Engineering team in Madrid, Spain. This group develops and maintains the Vonage Video Platform, focusing on backend systems that support cloud communications for businesses worldwide. What You Will Do Design and implement new features for the Vonage Video Platform. Improve and maintain backend systems, with attention to quality, fault tolerance, and performance. Optimize cloud resource management to support scalable and distributed computing solutions. Work with real-time communications technologies. Use data analytics to inform service development and scalability improvements. What Sets This Team Apart Work alongside experienced engineers who specialize in cloud infrastructure, media technologies, and real-time communication. The team values hands-on problem solving and a commitment to building large-scale, highly available systems.

About the Role Neoris is hiring a Python Developer in Madrid. This role focuses on building scalable applications and tools that support business operations and drive efficiency. Collaboration with teams from different functions is a key part of the work. What You Will Do Design, implement, and maintain software solutions using Python Work with colleagues across departments to understand needs and deliver effective tools Contribute to projects that improve processes and operational performance Location This position is based in Madrid, Spain.

Join Aircall, a leading unicorn in the customer communications sector, revolutionizing how over 22,000 companies engage with their customers globally. Our innovative AI-powered platform integrates voice, SMS, WhatsApp, and AI into a single, compelling workspace, designed to drive revenue, enhance issue resolution, and empower customer-facing teams.Our success is rooted in a clear vision: enable teams to work smarter, not harder. Our AI Voice Agent automates routine calls, AI Assist simplifies post-call tasks, and AI Assist Pro provides real-time insights, allowing individuals to perform at their peak. This leads to increased revenue, quicker resolutions, and scalable teams that operate with confidence.Headquartered in Paris, with a robust North American base in Seattle, Aircall operates across dynamic cities including Madrid, London, Berlin, San Francisco, New York City, Sydney, and Mexico City. Our product is beloved by customers, and we are rapidly scaling, supported by top-tier investors and continuous AI enhancements across diverse product lines.At Aircall, you will be part of an evolving company that is ambitious, product-oriented, and execution-driven, where your efforts yield visible impact, swift decision-making, and genuine growth.Our Work Culture: We are deeply customer-focused, data-centric, and committed to achieving significant results. We encourage ownership, ongoing learning, and thoughtful pace. If you excel in a cooperative, fast-paced environment where trust and influence are paramount, you will thrive with us.We are seeking a motivated and passionate Senior AI Software Engineer to enhance our expanding engineering division and contribute to our engineering teams.As a Senior AI Software Engineer, your role will involve the design, development, deployment, and management of AI-driven features that provide substantial value to our customers. Your daily responsibilities will encompass maintaining operational excellence, leveraging metrics and observability, sharing best practices, and mentoring team members across the Engineering department.Quality, excellence, and agility are the bedrock of our delivery processes, and you will be a key player in enhancing these standards. Our development is based on NodeJS and Typescript back-end stacks, tailored to meet specific requirements and always hosted on AWS, creating resilient services that integrate seamlessly with our customers' critical business tools (CRM, Helpdesk, E-Commerce, 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 us as an intern in the Software Systems Engineering department at Bosch Group in Madrid! This is an exciting opportunity for students to gain hands-on experience in software engineering, working alongside industry professionals to develop innovative solutions.

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

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.