Senior Software Engineer (Backend)

Smadex is a cutting?edge ad?tech company: we process more than 4.5 million ad requests per second, replying under 100ms (for reference, the Google search engine handles ~76,000 QPS).Every day we generate several TBs of data that need to be processed, analyzed and aggregated, so our real?time components get smarter every day.We need you to help us keep our platform in motion!If you are ready to boost your professional career in the tech world, this is your opportunity.The teamYou will join our core engineering team, a collaborative group of 8 experienced engineers responsible for maintaining and evolving the real?time bidding (Open?RTB) auction system that powers our entire business.We foster a fast?paced, supportive environment where knowledge sharing is key.We value autonomy and will provide the platform for you to grow your career while solving complex engineering challenges.What are we looking for?We’re looking for a knowledgeable Software Engineer who is excited by complex technical challenges.Your success will be measured by your ability to deliver high?quality features, collaborate with the team, while sharing and applying your knowledge effectively.What will you do at Smadex?You will dive into a dynamic environment, tackling short?cycle tasks across the core platform following a “you build it, you run it” philosophy.You will be expected to participate in code reviews, contribute to technical and architectural decisions, and collaborate in a fast?paced environment where every opinion counts.Key ResponsibilitiesFeature Ownership: Design, develop, and implement new features for core products using NodeJS and Java.Quality Assurance: Write clean, efficient, testable code and thoroughly test work locally and in a sophisticated staging environment.Operational Excellence: Monitor deployments and help ensure the stability, reliability and performance of production systems.Agile Collaboration: Collaborate with the team in an agile environment, participating in planning and reporting on progress.RequirementsA Bachelor’s degree in Computer Science or a related technical field.4 years of experience in a software engineering role.Hands?on experience with Java or NodeJS.A solid theoretical foundation in data structures, algorithms, and software design principles.A genuine passion for technology and an eagerness to learn and grow professionally.Excellent communication skills in English (written and spoken).Proficiency with Linux, Git, Docker, and Docker?Compose.Experience with testing tools and modern CI/CD frameworks.What Will Make You Stand Out (Bonus Points)Experience with Key?Value stores and in?memory databases (e.g. Redis, Memcached).Familiarity with cloud environments, particularly AWS.Our Tech StackLanguages: Java, NodeJS, Bash, PythonDatabases: MySQLCloud & DevOps: AWS, Jenkins, DockerTools: Git, Jira, NotionWhat We OfferIntegrate a highly motivated, young and dynamic teamGreat compensation packageTop location at the heart of Barcelona with a rooftop terrace, barbecue and a fully stocked fridgeGreat work?life balance: work from home (2 days per week), flexible hoursMeal vouchers - Ticket Restaurant monthly allowanceMonthly gym allowance: choose between DiR and WellhubLinkedIn Learning and training opportunitiesMonthly TGIF eventsRegular team?building eventsFun and friendly work environment with talented marketers and engineers from over 40 countriesAnd more!Please note that we do NOT provide VISA sponsorship.Candidates without a legal permit to work in Spain won’t be considered.#J-*****-Ljbffr

We’re looking for a knowledgeable Software Engineer who is excited by complex technical challenges. Your success will be measured by your ability to deliver high?quality features, collaborate with the team, while sharing and applying your knowledge effectively.What will you do at Smadex? You will dive into a dynamic environment, tackling short?cycle tasks across the core platform following a “you build it, you run it” philosophy. You will be expected to participate in code reviews, contribute to technical and architectural decisions, and collaborate in a fast?paced environment where every opinion counts.Key ResponsibilitiesFeature Ownership: Design, develop, and implement new features for core products using NodeJS and Java.Quality Assurance: Write clean, efficient, testable code and thoroughly test work locally and in a sophisticated staging environment.Operational Excellence: Monitor deployments and help ensure the stability, reliability and performance of production systems.Agile Collaboration: Collaborate with the team in an agile environment, participating in planning and reporting on progress.RequirementsA Bachelor’s degree in Computer Science or a related technical field.4 years of experience in a software engineering role.Hands?on experience with Java or NodeJS.A solid theoretical foundation in data structures, algorithms, and software design principles.A genuine passion for technology and an eagerness to learn and grow professionally.Excellent communication skills in English (written and spoken). Proficiency with Linux, Git, Docker, and Docker?Compose.Experience with testing tools and modern CI/CD frameworks.What Will Make You Stand Out (Bonus Points)Experience with Key?Value stores and in?memory databases (e.g. Redis, Memcached). Familiarity with cloud environments, particularly AWS.Our Tech StackLanguages: Java, NodeJS, Bash, PythonDatabases: MySQLCloud & DevOps: AWS, Jenkins, DockerTools: Git, Jira, NotionWhat We OfferIntegrate a highly motivated, young and dynamic teamGreat compensation packageTop location at the heart of Barcelona with a rooftop terrace, barbecue and a fully stocked fridgeGreat work?life balance: work from home (2 days per week), flexible hoursMeal vouchers - Ticket Restaurant monthly allowanceMonthly gym allowance: choose between DiR and WellhubLinkedIn Learning and training opportunitiesMonthly TGIF eventsRegular team?building eventsFun and friendly work environment with talented marketers and engineers from over 40 countriesAnd more!

Smadex is a cutting?edge ad?tech company: we process more than 4.5 million ad requests per second, replying under 100ms (for reference, the Google search engine handles ~76,000 QPS). Every day we generate several TBs of data that need to be processed, analyzed and aggregated, so our real?time components get smarter every day. We need you to help us keep our platform in motion! If you are ready to boost your professional career in the tech world, this is your opportunity.The teamYou will join our core engineering team, a collaborative group of 8 experienced engineers responsible for maintaining and evolving the real?time bidding (Open?RTB) auction system that powers our entire business. We foster a fast?paced, supportive environment where knowledge sharing is key. We value autonomy and will provide the platform for you to grow your career while solving complex engineering challenges.What are we looking for?