Senior Mobile Engineer

Nuvolar

We are a global technology consulting company specializing in IT solutions, cloud-based platforms, mobile and web applications, and training and support services. With over 14 years of experience and a multicultural team of more than 100 professionals, we deliver projects for highly complex industries such as pharmaceuticals, diagnostics, healthcare, and consumer goods. At our company, we value international talent, diversity, flexibility, and a collaborative environment that fosters both professional growth and personal well-being. ABOUT THE ROLE At Nuvolar, we are looking for a Senior QA Engineer to join one of our healthcare projects, working on digital health solutions that support complex workflows and critical software platforms. You will become part of a technical team responsible for ensuring the quality of a platform that manages sensitive healthcare information, integrations, and services within a complex digital health ecosystem.This role is a great opportunity for a QA Engineer who enjoys understanding complex products, defining quality strategies, designing meaningful test scenarios, and collaborating closely with developers and product teams to deliver reliable software. As the first QA Engineer joining this product team, you'll have the opportunity to shape how quality is built into the product from the early stages. Rather than joining an established QA function within the team, you'll define testing strategies, introduce best practices, and help embed quality throughout the development lifecycle while working closely with developers and product stakeholders. 🧠 WHAT YOU’LL DO * Define and execute the QA strategy for backend services, APIs, integrations, and critical product workflows. * Understand the product domain and translate business requirements into effective test scenarios. * Design, maintain, and execute test plans covering functional testing, regression testing, integration testing, exploratory testing, and edge cases. * Perform backend and API testing using tools such as Postman and OpenAPI/Swagger specifications. * Validate REST APIs, data consistency, error handling, authentication flows, and integration scenarios. * Work with relational databases such as PostgreSQL to validate data integrity and support testing activities. * Contribute to test automation initiatives by maintaining and improving automated test suites. * Analyse logs, traces, and system behaviour using monitoring and observability tools. * Collaborate closely with developers, Product Owners, and technical stakeholders to identify risks early and ensure release readiness. * Drive continuous improvement of QA practices and help establish quality standards within the team. ✅ WHAT WE’RE LOOKING FOR * Proven experience as a QA Engineer working on software products, backend services, REST APIs, or integration-heavy platforms. * Strong experience with API testing using Postman, Swagger/OpenAPI, or similar tools. * Experience creating, maintaining, or improving automated test suites. * Solid understanding of QA methodologies, test design techniques, regression testing, exploratory testing, integration testing, and defect management. * Experience working with relational databases and SQL to validate data integrity and application behaviour. * Knowledge of cloud environments, ideally AWS, with a practical understanding of services such as DynamoDB, SQS/SNS, and Secrets Manager. * Experience working with GitHub and CI/CD workflows, ideally GitHub Actions. * AI literacy, including familiarity with AI-assisted tools, AI agents, or the practical use of AI to improve testing, automation, and documentation. * Ability to understand complex technical environments, identify quality risks, and work collaboratively with developers and product teams. * Experience working in Agile/Scrum environments. * Professional level of English, both written and spoken. NICE TO HAVE * Experience working in healthcare, digital health, medical software, or other regulated environments. * Previous experience with patient data, identity management, or clinical workflows. * Knowledge of Spring Boot, Java, Maven, or Java backend ecosystems. * Experience with Playwright. * Experience replacing or modernising existing automation frameworks. * Experience with contract testing, distributed systems, or end-to-end integration testing. * Experience with Docker and containerised development or testing environments. 💜 WHY YOU’LL LOVE WORKING AT NUVOLAR * Flexible Work & Work-Life Balance: enjoy options to balance work and personal life, including every other Friday off. * Remote Work: this is a fully remote position, giving you the flexibility to work from anywhere in Spain while staying closely connected with your team. * Seniority Program: enjoy additional benefits and privileges as you grow with the company. * Social & Team Budget: even though we primarily work remotely, we encourage team gatherings and activities, with a dedicated budget. * Continuous Learning: access training, mentorship, and professional development opportunities. * Growth Opportunities: participate in challenging healthcare technology projects, work with modern technologies, shape the QA strategy of a growing product team, and contribute to the evolution of quality engineering practices. 👥 THE HIRING PROCESS 1. Project & Role Introduction A first conversation with one of our engineering team members to introduce the project, explain the role in detail, and answer your initial questions about the opportunity. 2. Technical Assessment You'll complete a take-home QA challenge designed to evaluate your technical approach, testing strategy, and problem-solving skills. 3. Technical Interview A discussion with our engineering team to review your assessment, explore your technical experience, and talk through real-world testing scenarios, technical decisions, and your way of working. 4. Cultural Fit Interview A conversation with our Talent Acquisition team to learn more about your background, career goals, and what you're looking for in your next opportunity. It's also a chance for you to ask any remaining questions about Nuvolar, our culture, and the role. 5. Client Interview (if required) Depending on the project, there may be a final conversation with the client to discuss the role, the team, and how you'll collaborate within the project environment. In our screening process, we prioritize verifiable signals of excellence, regardless of seniority. There are no preferential paths beyond what your application demonstrates, and we evaluate every candidate through the same process. Some people hold back because they feel they lack experience or have an “imperfect” CV. If you like the role and believe you could excel over time, don’t self-reject. All applications go through our careers page, which is the only way to be considered. If you pass our screening, you’ll be asked to complete one or more tests.  🚀 Join a team where trust, growth, and purpose go hand in hand. Apply now and let’s build meaningful tech — together, from anywhere. If you want to be aware of all of our latest updates, follow us via LinkedIn | Instagram | Glassdoor | Medium Equal Opportunity Statement Nuvolar Works is an equal-opportunity employer. We welcome and encourage applications from all backgrounds. We do not discriminate based on age, sex, gender, gender identity or expression, sexual orientation, family or marital status, disability, national origin, race, ethnicity, religion, or any other protected characteristic. Candidates with disabilities are encouraged to apply, and we are committed to providing an inclusive and accessible recruitment process. If you require any adjustments during the hiring process, please let us know.

DATAPAO

At DATAPAO, data ignites passion, community fuels collaboration, and growth knows no bounds. We are a leading Data Engineering and AI consulting company backed by Databricks and recognized for our unmatched delivery standards and rapid growth. We have been named Databricks EMEA Emerging Business Partner of the Year (2024), achieved the Golden Tier status in the Databricks Partner Program, and made three consecutive appearances on the Financial Times FT1000 list. We are currently looking for a Senior Data Engineer to join us remotely in Spain. You will work with our EMEA and US customers to help them solve their data engineering, ML, ML Ops, and cloud migration puzzles. "As a Data Engineer at DATAPAO, you will have the unique opportunity to push the boundaries of technology and lead the way in how data transforms the world. We work with customers who want to innovate and change their industries. So it never gets boring! Sorting out a complex technical puzzle, setting up a new data architecture from scratch, or guiding our customers through adopting the latest technologies is our routine here. Hence, we'd expect you to be more than just a (data) engineer. We'd expect you to breathe and live data, to thrive for knowledge and excellence, and to be keen to build something enduring and impactful for our customers. We'd expect you to be a (data) Paoneer!"  (Máté Gulyás, CEO) What will you do? As a Senior Data Engineer, you are expected to deliver (across industries) on some of our most complex projects - individually or by leading small delivery teams. Although we work for the biggest multinational companies where years-long behemoth projects are the norm, our projects are fast-paced, typically 2 to 4 months long. Most are delivered using Apache Spark/Databricks on AWS/Azure and require you to directly manage the customer relationship alone or in collaboration with a Project Manager. Additionally, at this seniority level, we expect you to compound your impact across the team and the organization - by supporting our pre-sales process, mentoring more junior engineers, and contributing to hiring best-in-class data talent. What does it take to fit the bill? Technical Expertise * You (ideally) have 5+ years of experience in Data Engineering, with a focus on cloud platforms (AWS, Azure, GCP); * You have a proven track record working with Databricks (PySpark, SQL, Delta Lake, Unity Catalog); * You have extensive experience in ETL/ELT development and data pipeline orchestration (e.g., Databricks Workflows, DLT, Airflow, ADF, Glue, and Step Functions.); * You’re proficient in SQL and Python, using them to transform and optimize data like a pro; * You know your way around CI/CD pipelines and Infrastructure as Code (Terraform, CloudFormation, or Bicep); * You’ve hands-on experience integrating Databricks with BI tools (Power BI, Tableau, Looker).  Consulting & Client-Facing Skills * Ideally, you bring a proven history in consulting, from scoping to gathering requirements, designing solutions, and communicating effectively with stakeholders. If you bring a product company background with you, that's also fine as long as you can show a good consulting mindset and desire to be customer-facing; * You’ve successfully delivered projects like Data Lakehouse buildouts and cloud data migrations; * You excel in explaining technical concepts to non-technical audiences and drive decision-making. Operational Readiness & Soft Skills * You’re (almost) ready to hit the ground running, immediately contributing to live client projects; * In a fast-paced consulting environment, where no two days are the same, flexibility and problem-solving comes naturally to you. Furthermore, resilience and thriving on challenges are essential traits in our industry; * Your communication skills are on point—whether you’re writing, speaking, or collaborating with stakeholders, you know how to keep everyone in the loop. What do we offer? You'll have the rare opportunity to join DATAPAO at a time when you can still meaningfully impact our growth trajectory and organizational success. Furthermore, as our first-ever Spain hire, you could meaningfully contribute to expanding our local presence and, eventually, establishing a physical hub in this geography. Surely, we know everyone needs a little something to do their best work. Here is a list of some other extras we offer:   * The chance to work remotely - as we don't have a physical office in Spain yet, we offer a fully remote setup for the time being. However, given our strong community emphasis, we'd expect you to spend one month in our Budapest hub during onboarding and visit the office for one week every quarter; * World-class educational benefits - there’s no shortage of learning opportunities at DATAPAO, meaning that you'll get access to Databricks' public and internal courses to learn all the tricks of Distributed Data Processing, MLOps, Apache Spark, Databricks, and Cloud Migration from the best. Additionally, we'll pay for various data & cloud certifications, you'll get dedicated time for learning during work hours, and access to our internal library;  * Flexible PTO days - we’re flexible with how many days you take off if that does not conflict with customer success and the work getting done; * Fully paid Medical Leave for up to 15 days per year - because when you’re unwell, we want you to focus on recovery and not worry about your paycheck; * Comprehensive private health insurance plan via Allianz - offered via our EOR (Employer of Record) provider, Remote.com. Remote will be your official employer in Spain for the foreseeable future until we establish our own legal entity in Spain; * Employee Assistance Program (EAP) via Allianz & Remote - life always happens! And we'd like to be there for you when it counts the most. Through EAP, we offer our employees access to psychology, financial, and legal consulting services via phone or in person; * Top-notch working equipment - working comfortably means working well. You will get a MacBook Pro and a sign-up bonus of 500 EUR gross (to be paid with your first payroll) to set up your home office or whatever else is needed to give your best; * The chance to make an impact in a high-transparency culture - open feedback and no politics are things we value a lot at DATAPAO. Additionally, you'll get the chance to work in the field of data & AI and shape the future of a rapidly growing tech company. IMPORTANT NOTE: Given that we are still sorting our way in Spain, this list will likely get an update in the following months, and we're also committed to growing it with us over time. The gross salary for this position ranges from 70.000 to 80.000 EUR/year, depending on your assessed seniority level during the selection process. Please note that currently we are unable to support transfer or offer full sponsorship for Skilled Worker visas as we’re just setting foot into Spain. WANT TO KNOW MORE ABOUT US? DATAPAO is a Data Engineering and AI company that covers the entire data transformation from architecture to implementation. Beyond delivering solutions, we also provide data and AI training and enablement. We are backed by Databricks - the creators of Apache Spark, and act as a delivery partner and training provider for them in Europe. Additionally, we are Microsoft Gold Partners in delivering cloud migration and data architecture on Azure. Our delivery partnerships enable us to work in a wide range of industries and with some of the most prominent global companies, such as Norsk-Hydro, Richter, Bayer, Schufa, GetYourGuide, TechnoAlpin, and Logically, to name just a few. As a training provider, we deliver onsite and online courses globally for Databricks and on our own. We have been teaching professionals at Apple, Amazon, Uber, Microsoft, T-Mobile, GE, Ericsson, and many more to improve their impact with data. For even more insights, check the links below: * Designing and Implementing a Real-time Data Lake with Dynamically Changing Schema (EN) by Máté Gulyás (2021, Spark AI Summit) * Productionising Machine Learning models (EN) by Máté Gulyás (2023, Mndwrk Event) * "Ha a data governance jól működik, az olyan, mint egy láthatatlan szupererő” (HU) by Máté Gulyás (2023, Com-Forth Zóna Podcast) You can also follow us on LinkedIn for all the good stuff or just hit our recruitment team at jobs@datapao.com We’re firm believers in scaling up a team without judgment or prejudice. What we really care about is working with the best people out there, no matter their background. And you should also not worry if you don't tick every box in the requirements. If you’re passionate about data and learning new things, you’ll fit right in, and we'd love to hear back from you. When we hear back from you, we'd like you to know that we are committed to your privacy and keeping your data safe. We do not share your data with any third parties (except the ones we use to run our recruitment process) and keep your application for two years unless you ask us otherwise. We use your data solely for recruitment purposes, such as letting you know about new career opportunities at DATAPAO and/or managing your application. But if you want to know more about how we store and manage your data, check our privacy policy.

Mediasmart

Do you want to work for one of the biggest consulting companies in Spain, working more than 12 hours a day and not having a life? We don’t either. So come and be part of a cool worldwide company, building things that matter to a real business, learning and making an impact while also enjoying your life. Our motto is: "Life before work". At mediasmart we are looking for a software engineer to join our team, whose main function will be to develop for the main products we offer to users: the API and the web frontend. About mediasmart mediasmart is part of the Affle group - a global adtech company that completed its successful IPO in India in 2019 and has been growing profitably since. Affle group has been in the adtech/martech business for over 15 years and runs multiple ad platform businesses including Appnext, MAAS, mDMP, Jampp, RevX, Vizury, Youappi in addition to mediasmart. Some of the key investors in Affle Holdings include Microsoft and D2C (JV between NTT DoCoMo & Dentsu). At mediasmart, our mission is to allow advertisers to effectively reach audiences across their digital journeys in real time, while maximizing engagement with campaigns and their incremental value to advertisers. mediasmart was one of the first players to enter the programmatic mobile ecosystem and to date our proprietary technology stack includes a DSP, DMP & Ad-Server, as well as direct connections to more than 30 ad exchanges where we buy display, video and native ads on mobile apps, Connected TVs, DOOH and desktop. The mediasmart business is headquartered in Spain having fast growing global teams across APAC, LATAM in addition to Europe.  Our culture and values * Be a generous team player. One that helps others succeed and celebrate their success. * Love curiosity. Keep learning and stay relevant. * It’s a team effort. Collaborate and cooperate to build a smart company. * Go farther. Be an example for others. Set the bar. * Love what we do. Love our work with passion and respect. * Do good and do well. Our work matters. We work hard and never forget to have fun in the process. Absolutely devoted to our customers and to building the best mobile advertising company out there, our passion shines through everything we do. Summary & Duties As a Senior Full Stack Engineer in our product technology team, you will play a key role in developing our web platform, serving large agencies and direct customers. Your responsibilities will span the entire product lifecycle, from initial concept to DevOps and deployment. * Deliver new features in short development cycles. * Polish a web-based platform (frontend and backend) with users all over the world. * Proactively improve and propose projects to make our product more effective and easy to use. * Interact with other teams to build new features or solve technical issues. * Individuals with stronger backend and cloud abilities will find this position customizable to their skills. Requirements * At least 4-5 years of experience as a full-stack developer * Strong knowledge of JavaScript and ES6 * Wide experience with Node.js and REST APIs * Experience with MongoDB database * Familiarity with cache databases, its data structures and operation commands * GNU/Linux administration * Exposure to cloud: AWS, GCP, Azure… * Proficiency in Spanish (native level), both oral and written, as this is the language used for interaction with the team.  * Fluent in English, both oral and written, as this is the language used for interaction with most of the stakeholders and the business language for all our tools and documentation. Desirable requirements * Experience working in a distributed team * AWS: In particular EC2, S3, Route53, Elastic Transcoder, load balancing, and CloudFront * Experience working with relational databases: in particular GCP BigQuery Skills * Analytical, curious, goal-oriented * Strong orientation to detail, with an ability to collect and organize data, understand the results, and communicate them effectively * Having a good eye for design * Excellent interpersonal and communication skills, both written and oral * Ability to motivate others to work as a team to meet the business case and customer goal * Strong influencing and negotiating skills * Being proactive * Ability to take personal initiative and prioritize workload whilst being a team player within a collaborative environment