Mid-Senior Software Engineer

You 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., * Feature 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.

Do you have experience in Shell Scripting?, Do you have a Bachelor's degree?, * A Bachelor's degree in Computer Science or a related technical field.

• 2-4 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., * Languages: NodeJS, Java, Bash, Python
• Databases: MySQL
• Cloud & DevOps: AWS, Jenkins, Docker
• Tools: Git, Jira, Notion

• Join a highly motivated and talented team in a fun and friendly work environment.
• Opportunity to work in a complex environment and gain experience from it.
• Directly add value to the business with the projects that you are assigned.
• Great compensation package.
• Top location at the heart of Barcelona with a rooftop terrace, Barbeque, and a fully stocked fridge.
• Great work-life balance: work from home (2 days per week) and flexible hours.
• Professional development with a LinkedIn Learning subscription and other training opportunities.
• Meal vouchers - Ticket Restaurant monthly allowance.
• Monthly gym allowance to use in up to 30 DIR gyms around the city.
• Monthly TGIF (Thank God It's Friday) events and regular team-building activities.
• Ping-pong table and arcade machine.
• And 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.