Meet Urban Sports Club

We are among the leading platforms for sports and wellness in Europe, dedicated to inspiring people to live active, healthy lives. With just one membership we offer access to thousands of fitness and wellness experiences across the continent.

But what truly sets us apart? We believe our people are at the heart of everything we do. If you’re curious about how we work, what we value and how you might grow with us, explore our Culture Hub & Career Opportunities.

*Big news: Wellhub and Urban Sports Club unite!*
Urban Sports Club is now a proud part of Wellhub, creating a global wellbeing ecosystem. Together, we connect 39,000 corporate clients and 97,000 wellness partners across 18 countries, offering millions of people even more ways to stay active and take care of their health.

The opportunity 

We are looking for a Staff Mobile Engineer with a passion for building great user experiences in an international environment. You will join our cross-functional teams working on our flagship application, developing innovative features and creating a smooth check-in experience for our members.

In this role, you will not only design and implement advanced Mobile applications in Kotlin and Swift, but also take architectural ownership, help guide native development, and ensure alignment between Android and iOS. Working closely with engineers, product managers, and designers, you’ll bring cohesion across platforms and set the direction for mobile excellence at Urban Sports Club.

What you will do

• Design and build advanced applications in Swift for the iOS platform, experience in Android is a plus.
• Collaborate with cross-functional teams to define, design, and deploy new features.
• Write unit tests and ensure robustness across edge cases, usability, and reliability.
• Work on bug fixing and improving application performance.
• Continuously discover, evaluate, and implement new technologies to maximize development efficiency.
• Drive architectural decisions and help coordinate efforts across Android and iOS for consistent implementations.

What you will need to succeed

• You have a degree in Computer Science or equivalent experience and at least 8 years of professional Mobile (iOS or Android) development.
• With strong expertise in Swift, you’ve gained hands-on experience across different iOS versions and screen sizes.
• Skilled in designing SwiftUI, you apply established design principles, patterns, and best practices in your work.
• Experience with RESTful APIs, offline storage, maps APIs, and performance tuning enables you to build apps that are both scalable and reliable.
• Familiarity with cloud messaging APIs, push notifications, CI/CD practices, and effective use of open-source libraries supports your efficiency.
• The ability to translate business requirements into technical solutions and to communicate clearly across teams ensures alignment and impact.

What’s in it for you 

• Work on cutting-edge tech and influence the future of our stack: explore our Tech Radar
• Free Urban Sports Club L Pro Membership + Friends and Family Discount: Stay active with free membership, plus discounts for friends and family.
• Flexible Work Model: Enjoy a hybrid work setup, balancing on-site and remote work options to fit your lifestyle.
• Extended Remote Work Options: Work up to 120 days remotely within the EU, the UK, and Switzerland, including 30 days outside the EU. You’ll also have the option to desk-swap at our other European offices.
• WorkOUT Life Balance: Take advantage of 30 days of paid vacation annually, plus two additional days for volunteering, flexible working hours, and complimentary access to our mental health provider Open Up.
• Personal Development: Receive an annual budget of €1,000 for professional growth, with regular internal training sessions and weekly German and English language classes.
• Engaging Team Culture: Participate in regular team and company events along with wellness initiatives that help you stay productive, healthy, and engaged in a hybrid work environment.

Urban Sports Club is committed to providing a friendly, safe, and welcoming environment for everyone who applies for a position or already works with us, regardless of their sports preferences, gender, gender identity and expression, sexual orientation, disability, physical appearance, body size, race, age, or religion (or lack thereof).

Position Description: 

The Iberia Solutions Engineering team are involved in all stages of the customer’s development lifecycle and are experienced using presentations, email, phone and social media to connect with customers. We are looking for great teammates that can build sales presentations, product demonstrations, and educate customers (everyone from developers to product managers to C-level executives) on the best ways to cloud security technology. 

We believe in Okta’s Solutions Engineers empathise with customers and quickly discern their true technical needs by asking detailed and clarifying questions and presenting solutions that target those needs. You have the rare combination of technical savviness and business insight and you’re looking for a career where you can utilise both. As a Solutions Engineer at Okta, you will hone each of these skills by advising a diverse set of customers on what is possible using Okta’s Identity Platform. This position is based in Madrid. 

Job Duties and Responsibilities:

• Collaborate with account executives to develop and execute territory and account strategies to maximize the Okta opportunity in those accounts
• Conduct research and discovery to understand customer requirements and communicate the business value of solving technology problems using cloud technology
• Execute the delivery of POCs for customers with complex use cases, collaborating with other Okta engineering teams as needed
• Craft technical content to show customers how to implement specific use cases or standard methodologies for new technologies
• Prepare and deliver demos to showcase how the Okta platform meets customer’s business needs and use cases.  
• Distill and communicate customer needs and product feedback to Product Management, Engineering, Marketing and Sales

Desired Skills:

• A passion to serve the customer, which has played out in some customer-facing role like consulting or support, ideally solutions engineering
• An ability to quickly and effectively communicate complex technical concepts via presentation, slides and whiteboard 
• A good understanding of Identity & Access Management (IAM): SSO, MFA, SCIM, OAuth 2.0, OIDC, SAML, and LDAP.
• A strong understanding of Zero Trust Architecture and core security concerns within a typical application (password hashing, SSL/TLS, encryption at rest, XSS, XSRF)
• Hands-on experience in one or more of the following areas is a plus: web (JavaScript, HTML, frontend frameworks) development, mobile (iOS, Android) development, backend (Java, C#, Node.js, Python, PHP, Ruby) development, IP-based real-time communications
• Experience with cloud platforms: AWS, Azure, GCP.
• You are an elite communicator
• Can identify, map, and manage multiple personas: IT admins, CISOs, architects, procurement, and legal.
• Confident dispensing knowledge to a highly skilled and experienced audience
• Typically 10-25% travel
• Native Spanish speaker is a must
• Professional English proficiency (Spoken and written) is a must

#LI-JB2

#LI-HYBRID

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What we do  

Our Software Engineers are end-to-end owners who have the opportunity to participate in many aspects of designing, building, and delivering data-focused products for our stakeholders.  

At The Trade Desk, we believe in building the back-end infrastructure of our platform with a focus on quality at scale. This means whether we are building parts of our client-facing applications, internal custom solutions for our own team members, or model pipelines for bidding optimisations, we are making sure that we have infrastructure, development, and tools to do it right and efficiently.  

Our system performs all day, every day serving global traffic. We build a distributed system in a highly collaborative environment, utilising a broad range of technologies. Our back-end developers work on finding solutions to algorithmic, optimization and scale challenges in everything we do.  

What you’ll do: 

Some of the work that you will be doing to help us deliver on our mission is: 

• Design, build, deliver and own full lifecycle development software from inception to production  
• Demonstrate a firm grasp of the entire software development lifecycle  
• Drive complex changes involving multiple components  
• Deliver quality changes, including automated tests, metrics and monitoring   
• Collaborate with team members to deliver features  
• Guide and review changes to product features in line with product roadmaps   
• Implement and maintain product features  
• Validate changes to ensure high quality product releases  
• Work in a distributed system environment  
• Understand the business objectives behind the code  
• Understand system architecture fundamentals through self-directed learning  
• Lead others through example, mentorship, teaching, and/or participate in hiring activities 

We are a global team with different backgrounds, experiences and perspectives. To complement this team, you will welcome ideas that are different from your own and be well-versed in building from common ground to value, seek out, and foster invisible and visible dimensions of diversity. 

Who you are: 

Our culture is much deeper than just having fun together (though, we do that well too...). We take pride in our engineers being trust-builders, generous givers, scrappy problem solvers, and gritty pursuers of excellence. You do not have to meet all the requirements below, but we believe that people who meet most of them will have a higher likelihood of succeeding in this role: 

• You are you comfortable working on an agile, distributed team spanning multiple time zones and continents.  
• You are able to communicate effectively across both technical and non-technical audiences.  
• You have a solid understanding of computer science and engineering fundamentals.  
• You have experiences working with distributed systems.  
• You are proficient in one or more of the following programming languages: C#, Java, C, C++, Python, SQL, or Scala.  
• You have some knowledge of software development code editors: Visual Studio, Visual Studio Code, Rider) and version control systems (Git, Perforce). 
• You have 2+ years of software development, engineering experience  
• You have a Bachelor’s/Master’s level degree in a computer-science or relevant engineering related field or equivalent experience. Not everyone has the same level of access to opportunities. What is most important to us is what and how you can contribute, which is why our consideration is not limited by the level of education you have. 
• You have additional nice-to-have experience that is not required in the following areas: database engines (Microsoft SQL Server, Postgres, AeroSpike, Vertica, Redis), building micro-services, operating systems and cloud, Kubernetes, Kafka.  

Variety of technical opportunity is one of the best things about working at The Trade Desk as a software engineer which is why we do not expect you to know every technology we use when you start. What we care about is that you can learn quickly and find solutions to complex problems using the optimum tools for the job. What you know is less important than how well you learn and innovate. We don't need engineers who know all the answers; we need engineers who can invent the answers no one has thought of yet, to the questions yet to be asked.  

The Trade Desk does not accept unsolicited resumes from search firm recruiters. Fees will not be paid in the event a candidate submitted by a recruiter without an agreement in place is hired; such resumes will be deemed the sole property of The Trade Desk. The Trade Desk is an equal opportunity employer. All aspects of employment will be based on merit, competence, performance, and business needs. We do not discriminate on the basis of race, color, religion, marital status, age, national origin, ancestry, physical or mental disability, medical condition, pregnancy, genetic information, gender, sexual orientation, gender identity or expression, veteran status, or any other status protected under federal, state, or local law.

The Job in Short

Join our Wealth Engineering team as an AI Applied Engineer where you'll design, develop, and shape our iOS investing products. Your innovative, future-ready features will impact over 100 million users globally.

What you'll do

Join Backbase in leading the charge towards a new era in banking innovation. As part of our renowned R&D department, you'll be instrumental in developing, scaling, and deploying cutting-edge software solutions to financial institutions worldwide. Collaborating closely with our talented mobile engineers, you'll help shape the future of FinTech with innovative SDKs and libraries. Let's embark on this exciting journey together as we revolutionize banking for Retail, Business, and Wealth Management clients worldwide.

• Building new features and improving existing features in our wealth mobile banking products for our clients and their end users.
• Achieving high standards through comprehensive non-functional testing, including performance, scalability, and security assessments;
• Own a set of our mobile banking components and create the one stop shop for mobile digital transformation.
• Collaborate with the Application Security team to stay on top of new tech and changes within the security domain.
• Participate in agile and scrum ceremonies while building clean, maintainable, testable and scalable code.
• Join our mobile guild which consists of 70+ mobile engineers to continuously grow your knowledge.

Who you are

Looking for a journey instead of just a job? Then let’s talk! We are THE pioneers in banking tech, and we're looking for someone with a proactive, self-driven attitude who’s ready to tackle challenges and take initiative. You will become part of a dynamic environment that influences the banking experience of hundreds of millions of users worldwide.

If you want to develop our iOS Banking Apps and scale our libraries to shape the future of banking, this role is for you. Your excellent communication skills in English—both verbal and written—will help you collaborate effectively within our global team. Experience in the banking domain will allow you to hit the ground running, and your belief in writing clean, maintainable, and scalable code will align perfectly with our commitment to quality.

• You have 4+ years of relevant working experience working on complex iOS-based products.
• You have a solid experience of working with Swift.
• You have a deep comprehension of the MVVM (via UIKit) architecture pattern.
• You have experience with Cocoapods to create new pods and manage our existing dependencies.
• You have a solid knowledge of the UIKit Auto Layout and Constraint system.
• You have deep experience using frameworks like Combine and UIKit.
• You understand how to build and use both dynamic and static frameworks.
• You have experience in writing unit tests and you understand the testing pyramid.
• You have hands-on technical experience with non-functionals such as security, performance and accessibility.

The Engineering (Tech) Team is responsible for all Feedzai product development. Together with Product Management and Data Science, we build the next generation of tools to catch fraud in real-time with a machine learning first approach. Formed by engineers and managed by engineers, at Feedzai, you will find one of the most talented teams out there, from junior to senior engineers.

We are fast-paced and provide a safe, open, and collaborative environment that encourages us to lean in, try new things and discover our potential with continuous learning for everyone.  

While building the best value for our customers, you will work with a wide range of technical challenges. Such as building distributed systems that need to operate 24/7 and ultra-low latencies, solving UI/UX problems to help fraud analysts to fight fraud more efficiently. In addition, designing extensive databases from relational, NoSQL and graphs, validate and develop new data science techniques and algorithms.

You:

You are a passionate professional with the talent to push engineering excellence, challenge the status quo, and lead by example. You excel by being a catalyst for clarity, engaging key stakeholders, and driving scalable technical solutions that align with our business goals. 

You have a critical mindset and the ability to mentor others, ensuring the team delivers high-quality, production-ready mobile software with minimal oversight. On a daily basis, you’ll have the chance to work on subjects such as High-Performance Mobile SDKs, Security, and Scalability.

Your Day to Day:

• Own the end-to-end delivery of robust SDKs, from architectural design to production-ready deployment, ensuring they scale predictably in high-stakes environments;
• Solve high-complexity technical challenges with significant autonomy, making the critical trade-offs between development speed and long-term software quality;
• Champion engineering excellence by mentoring peers and raising the bar for design reviews, code quality, and mobile best practices;
• Liaise with cross-functional stakeholders to translate customer needs into technical mobile solutions that maximize business impact and user experience;

You Have & You Know-how:

• BSc/MSc degree in Computer Science or a similar technical degree;
• 5+ years of experience in developing and delivering advanced mobile applications;
• Mastery of the Android ecosystem, from high-level app architecture in Kotlin and/or Java to low-level OS internals and security frameworks.
• Experience with Mobile CI/CD and Automation (e.g., Gitlab, Jenkins, or Bitrise) to ensure predictable, high-quality releases.
• Extreme Ownership mindset, proactively seeking context and driving tasks to completion with growing autonomy.
• We also value experience in the following topics:
• Designing and creating frameworks or SDKs for mobile applications;
• Native app writing ability for iOS environments (Swift/Objective-C);
• Knowledge in Cross-platform tools (Cordova, Xamarin, and Flutter) and Typescript;
• Good technical English communication skills. 

The Product Team builds our product to disrupt the financial crime industry from a data-led approach. We partner with our clients using a holistic lens and have result-driven solutions to manage financial risk with a cloud-first platform and a world-class UX interface. Being part of this team, you have a voice in planning, strategizing, and challenging the status quo. Your thoughts and ideas are valued. Our fast-paced and open environment encourages us to lean in, try new things, and  discover our potential. We define and act on what could be in tomorrow's world, not on what is today. Join Us!

#LI-Remote #LI-LS1

The job in short

Join our Wealth Engineering team as an AI Applied Engineer where you'll design, develop, and shape our Android investing products. Your innovative, future-ready features will impact over 100 million users globally.

What You'll do

Join Backbase in leading the charge towards a new era in banking innovation. As part of our renowned R&D department, you'll be instrumental in developing, scaling, and deploying cutting-edge software solutions to financial institutions worldwide. Collaborating closely with our talented mobile engineers, you'll help shape the future of FinTech with innovative SDKs and libraries. Let's embark on this exciting journey together as we revolutionize banking for Retail, Business, and Wealth Management clients worldwide.

• Building new features and improving existing features in our wealth mobile banking products for our clients and their end users.
• Achieving high standards through comprehensive non-functional testing, including performance, scalability, and security assessments;
• Own a set of our mobile banking components and create the one stop shop for mobile digital transformation.
• Collaborate with the Application Security team to stay on top of new tech and changes within the security domain.
• Participate in agile and scrum ceremonies while building clean, maintainable, testable and scalable code.
• Join our mobile guild which consists of 70+ mobile engineers to continuously grow your knowledge.

Who you are

Looking for a journey instead of just a job? Then let’s talk! We are THE pioneers in banking tech, and we're looking for someone with a proactive, self-driven attitude who’s ready to tackle challenges and take initiative. You will become part of a dynamic environment that influences the banking experience of hundreds of millions of users worldwide.

If you want to develop our Android Banking Apps and scale our libraries to shape the future of banking, this role is for you. Your excellent communication skills in English—both verbal and written—will help you collaborate effectively within our global team. Experience in the banking domain will allow you to hit the ground running, and your belief in writing clean, maintainable, and scalable code will align perfectly with our commitment to quality.

• You have 4+ years of relevant working experience working on complex Android-based products;
• You have a solid experience of working with both Kotlin and Java.
• You have a deep comprehension of MVVM as well as strong understanding of design patterns (eg: Creational, Structural & Behavioural).
• You have experience of working with Jetpack, Retrofit or OkHttp, Coroutines, Flow, and Channels.
• You have a solid knowledge of Dependency injection design patterns.
• You have experience in writing unit tests with JUnit and you understand the testing pyramid.
• You are familiar with CD/CI practices and understand core concepts such as Data Structures, Algorithms and System Design.
• You have hands-on experience with RESTful APIs.
• You have worked with Android Studio and Git in the past.

About the role

We are looking for a technical Marketing Automation Engineer (CRM) with a strong focus on user lifecycle architecture.

Your mission will be to design, build, and maintain the systems, automations, and data flows that support the entire customer lifecycle—from acquisition to activation, repeat engagement, and long-term retention.

This is a role for engineers who enjoy working with data models, APIs, lifecycle triggers, segmentation logic, and event-driven architectures rather than campaign operations.

You will own the technical foundation that powers all lifecycle journeys across email, push, SMS, and WhatsApp.

About the team

The CRM Automation team builds and maintains the technical infrastructure that powers Fever’s lifecycle communications. We work closely with Product, Data, and Growth teams to deliver personalized, real-time experiences across email, push, SMS, and WhatsApp. Our mission is to ensure users receive the right message at the right time through scalable architectures, robust automations, and continuous experimentation. Collaboration, engineering excellence, and data-driven decisions are at the core of how we operate.

What You’ll Do

Lifecycle Architecture

• Build and iterate scalable lifecycle flows across onboarding, activation, conversion, and retention phases.
• Translate lifecycle logic into technical architectures, schemas, and event-driven triggers.

Automation Engineering

• Implement advanced logic using AMPscript, SSJS, SQL, and REST/SOAP APIs for dynamic personalization.
• Create reusable automation components to accelerate development and reduce operational complexity.

Data Activation & Modeling

• Design and maintain data models needed for lifecycle segmentation and decisioning.
• Develop robust data ingestion and transformation workflows to ensure accurate audience targeting.

System Integrations

• Connect CRM automations with internal APIs, backend systems, and real-time event streams.
• Align lifecycle trigger definitions and data structures with Data Engineering and Product Engineering.

Performance, Reliability & Quality

• Monitor and improve automation performance, execution time, and system stability.
• Implement diagnostics, alerting, and validation layers to ensure lifecycle flows run consistently at scale.

Experimentation & Optimization

• Support controlled experiments within lifecycle flows (variant routing, conditional logic, A/B structures).
• Contribute to frameworks that help evaluate impact on key lifecycle stages and overall system efficiency

Qualifications & Skills

• 2–3 years of experience in CRM and digital marketing within web/mobile product environments.
• Advanced SQL: able to design complex queries, data models, transformations, CTEs, and audience logic for large-scale lifecycle flow
• Bachelor's degree in Engineering, Computer Science, or a related technical field.
• English fluency : able to communicate clearly with technical, product, and data teams in an international environment.

Nice-to-have:

• SSJS, APIs, and AMPscript for dynamic content and integrations
• Experience in Salesforce Marketing Cloud (Journey Builder, Automation Studio, Email Studio, CloudPages)
• HTML, CSS, ReactJS (for email or landing page development)
• Tagging and analytics tools (e.g., Segment, Amplitude, GTM)
• Version control tools (e.g., Git) and ticketing systems (e.g., Jira, Confluence)
  
  

Benefits & Perks

• Attractive compensation package
• Opportunity to have a real impact in a high-growth global category leader
• 40% discount on all Fever events and experiences
• Work in a location in the heart of Madrid, with possible travel across our markets
• Home office friendly
• Responsibility from day one and professional and personal growth
• Great work environment with a young, international team of talented people to work with!
• Health insurance and other benefits such as Flexible remuneration with a 100% tax exemption through Cobee
• English and Spanish Lessons
• We have free food, drink and fruit at the office!
• Possibility to receive in advance part of your salary by Payflow
• Wellhub Membership
  

#LI-hybrid #LI-fulltime