Senior Software Engineer - High Performance Systems

Greetings! We are Fever, the premier tech platform dedicated to culture and live entertainment.Our goal? To make culture and entertainment accessible to everyone. Utilizing our innovative technology and data-driven strategies, we are transforming how individuals experience live entertainment. Each month, our platform motivates over 300 million people across …

Join Talan as a Senior Backend Developer and contribute to innovative projects that redefine the tech landscape. In this role, you will leverage your expertise in backend development to build scalable and efficient applications, collaborate with cross-functional teams, and drive technical solutions that propel our clients' success.

Role Overview JetBrains is looking for a Senior Fullstack Developer to focus on AIR Automations. This role involves working closely with a skilled team to build and improve automation solutions. The position calls for strong experience in both frontend and backend development to create reliable applications that support customer workflows. Location Options include Belgrade, Berlin, Madrid, Munich, Prague, or remote within Germany.

Join Speechify as a Senior Software Engineer specializing in Core Experiences! In this pivotal role, you'll collaborate with cross-functional teams to design, develop, and enhance our core software products. Your expertise will help shape the user experience and drive innovation in our technology stack.

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.

About the Role Talan is looking for a Senior Full Stack Developer in Málaga. This position works across both front-end and back-end technologies to design and build applications that improve user experience and support business goals. What You Will Do Develop and maintain web applications from concept through deployment Collaborate with team members to deliver high-quality solutions Apply experience in both front-end and back-end development to solve complex problems Contribute to technical decisions and share knowledge with colleagues Location This role is based in Málaga.

Join Voodoo as a Principal Game DesignerAt Voodoo, we are on a mission to entertain the world through innovative mobile games and applications. Established in 2013, we have grown into a powerhouse with over 800 dedicated employees, achieving an impressive 7 billion downloads and maintaining more than 200 million active users. As the world's third-largest mobile game publisher, following Google and Meta, our portfolio boasts hit titles like Mob Control, Hole.io, and Paper.io2, in addition to popular apps like BeReal and Wizz.This position offers the flexibility of remote work within a time zone of CET ±5 hours.About Our TeamOur Gaming team comprises experts in hybrid-casual, casual, and mid-core game development. The 'Core' games segment collaborates with both internal and external studios globally to develop and launch new hit titles, while our 'Live' games team focuses on enhancing engagement with our existing, successful games.Joining our Live games team means you'll work alongside industry experts on globally recognized titles while exploring exciting entrepreneurial projects. With our expansive portfolio of over ten resilient hybrid games generating more than $20 million annually, we are the largest and most successful hybrid publisher in the world.As part of the Midcore team within Live Studios, your primary focus will be transforming hypercasual games into engaging midcore experiences. Currently, we are developing titles such as Epic Plane Evolution, Archery Clash, and Gear Fight, along with Ball Blast and Sniper Siege.

Role overview T-Systems Iberia seeks a Senior Data Engineer in Granada to focus on Databricks. The main responsibility is to design, build, and improve data pipelines and architectures that address business needs. What you will do Create and maintain data pipelines using Databricks. Collaborate with colleagues from different teams to keep data accurate and reliable. Optimize data systems for analytics and reporting purposes. Support the delivery of insights that influence decision-making across the company. Location This position is based in Granada.

Join Diamond Foundry Inc., a pioneering company at the forefront of technology, dedicated to overcoming the thermal challenges in critical sectors like AI, cloud computing, electric vehicles, and advanced wireless communication (5G/6G). As the creators of the world's first single-crystal diamond wafers, we are on an ambitious journey to integrate diamond technology into every chip. With $515 million in funding and a robust multi-billion dollar expansion strategy, we are innovating one of the most sustainable manufacturing processes, transforming greenhouse gases into diamond wafers using zero-emission energy.We are looking for an experienced and proactive Senior Data Systems Engineer (Networking) to enhance our global IT team at Diamond Foundry. Located in Zaragoza, this role will position you as the leading network expert within our organization. You will support Tier-1 manufacturing and office environments worldwide, collaborating closely with our primarily U.S.-based IT team to maximize production uptime, facilitate rapid site expansion, and bolster network resilience across all operational regions.

Role overview T-Systems Iberia is searching for a Senior or Staff Backend Engineer to join the team in Granada. The role centers on building scalable backend applications that help meet business objectives and support client requirements. Expect a mix of hands-on development and close teamwork with colleagues from a variety of specialties. What you will do Develop and maintain backend systems that power business-critical applications Collaborate with cross-functional teams to design and implement technical solutions Share expertise to strengthen architecture, performance, and reliability Support ongoing projects as business needs change Location This role is based onsite in Granada.

Grafana Labs is looking for a Senior Software Engineer focused on Application Core Services. This remote position is open to candidates based in Spain. Role overview This role centers on designing, building, and maintaining essential application services that support the Grafana platform. Collaboration with a skilled engineering team is a key part of the job, ensuring the platform remains reliable and high-performing. What you will do Work on the core services that power Grafana applications Contribute to the design and development of features that improve user experience Help maintain and enhance the reliability and performance of the platform Requirements Strong grasp of software engineering fundamentals Experience solving complex technical challenges Ability to work effectively as part of a distributed team This position offers the flexibility to work remotely from anywhere in Spain, with the chance to make an impact on projects used by people around the world.

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 our dynamic team as a Senior Salesforce Developer and engage in exciting international projects that push the boundaries of technology. You will be responsible for designing, implementing, and managing Salesforce solutions that meet our clients' needs.

CM.com is building tools that help businesses connect with customers and manage every interaction smoothly. The company’s Customer Engagement Platform brings together conversations, customer data, ticketing, and payments, all supported by AI Agents. Four business units, Connect, Pay, Live, and Engage, work together to deliver these solutions worldwide. About the In-Person Payments Team The Pay business unit includes the In-Person Payments (IPP) team. This group focuses on making payment processing easy and reliable at physical locations, think festival bars, restaurants, or airports. Payment is often the final touchpoint in any customer journey, so it needs to be quick and positive. The IPP team aims to unify online and in-person payments into one integrated, omnichannel solution. Role Overview: Senior Developer – In-Person Payments This Senior Developer role sits within the IPP team in Madrid. The team designs, builds, maintains, and operates CM.com’s in-person payments products. The goal: create a scalable, sustainable architecture that lets merchants connect with customers and offer smooth payment experiences. Senior Developers here work closely with colleagues in Madrid and other locations. The work covers everything from designing new features to ensuring payments are secure and reliable in real-world settings. What You Will Do Develop and maintain products for in-person (card-present) payments. Help unify online and in-person payment systems into a single platform. Design scalable solutions that support merchants in delivering seamless payment experiences. Collaborate with a skilled development team across multiple offices. Contribute to the team’s mission of making payment moments secure and effortless for end customers. Location This position is based in Madrid, Comunidad de Madrid, Spain. About CM.com CM.com is a global company focused on improving customer interactions through technology. For more information, visit CM.com.

Join our team as a Senior Frontend Developer at SGS, where you will be integral in creating innovative, scalable, and user-friendly web applications. You will collaborate closely with the UX/UI Technical Leader to establish and refine our frontend architecture, guaranteeing an exceptional user experience across our suite of products.Your role will involve working hand-in-hand with product managers, designers, and backend engineers to convert business needs into clean and efficient frontend solutions.Key Responsibilities:Design, develop, and maintain scalable, high-performance frontend applications.Take ownership of the frontend architecture, enhancing maintainability and scalability.Work closely with UX/UI designers to create intuitive and visually appealing user experiences.Translate product and design specifications into clean, efficient, and reusable code.Advocate for best practices in frontend engineering, including Clean Code principles, testing strategies, and component design.Develop and maintain design systems and reusable component libraries.Optimize application performance, including load times, rendering efficiency, and responsiveness.Ensure cross-browser compatibility and a responsive design across various devices.Integrate frontend applications with REST APIs and/or GraphQL services.Contribute to CI/CD pipelines and enhance frontend delivery processes.Provide support and mentorship to other developers through code reviews and knowledge sharing.Contribute to technical documentation to ensure a shared understanding within the team.

Role overview SGS seeks a Senior .NET Full Stack Developer based in Madrid. This role centers on building and enhancing web applications that drive business objectives. The position requires hands-on work across both front-end and back-end, with a focus on delivering reliable, high-performance solutions throughout the software development lifecycle. What you will do Develop and maintain web applications using .NET and related frameworks Collaborate with cross-functional teams to design and implement solutions that meet business needs Improve application performance and uphold code quality standards Participate in all stages of the software development process, from initial planning through deployment Requirements Extensive experience in both front-end and back-end development Strong collaboration skills with both technical and non-technical colleagues Dedication to maintaining high standards in code quality and application performance

Role overview Jobgether seeks a Senior PHP Developer to join the Technology & AI Labs team in Spain. This position centers on building and supporting PHP applications that power Jobgether’s digital platforms. Collaboration with colleagues from various backgrounds is a key part of the job, with a shared goal of delivering dependable and user-friendly solutions. What you will do Design, develop, and maintain applications using PHP Work alongside cross-functional teams to enhance user experience Support the ongoing improvement of Jobgether’s digital products Location This role is based in Spain.

We are seeking a talented and experienced Senior COBOL Developer to join our dynamic team at Sopra Steria. In this role, you will leverage your expertise in COBOL programming to contribute to critical projects within the insurance sector. You will be responsible for developing, testing, and maintaining software applications that meet our clients' needs, ensuring high-quality deliverables and timely project completion.As a Senior Developer, you will also mentor junior developers, participate in code reviews, and collaborate with cross-functional teams to drive innovation and efficiency. If you are passionate about technology and looking to make a significant impact in a collaborative environment, we would love to hear from you!

Join our innovative team at Delivery Hero as a Staff Android Engineer specializing in Core Data. In this role, you will be pivotal in shaping the future of Android applications by leveraging your expertise in data management and mobile development.As part of the Tech Foundation team, you will collaborate with cross-functional teams to design, develop, and maintain scalable Android solutions that enhance our customer experience. Your contributions will be crucial in implementing best practices and optimizing our codebase for performance and reliability.

We are seeking a Senior ABAP Cloud Developer to engage in development and modernization projects within SAP S/4HANA Cloud and SAP BTP. In this role, you will serve as a technical reference and ensure adherence to the Clean Core strategy.Technical Skills Required:Strong experience (5+ years) as an ABAP DeveloperProven expertise in ABAP Cloud / ABAP RESTful Application Programming Model (RAP)Development experience in:CDS Views (analytical and consumption)Business Objects with RAPService-oriented programming:OData V2 / OData V4Development in S/4HANA Cloud and/or ABAP Environment (Steampunk) on SAP BTPClean Core focus:Side-by-side extensionsUtilization of released APIsProficiency in ABAP OO and best practicesKnowledge of SQL optimized for HANAIntegration with SAP Fiori / UI5 (service consumption)Management of authorizations and security in ABAP CloudUnit testing with ABAP UnitDebugging and performance analysisTransport management and lifecycle in cloud environments