Junior Software Engineer

Posted Yesterday
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Barcelona, Cataluña, ESP
In-Office
Junior
AdTech
The Role
Develop and maintain features for Smadex’s real-time bidding platform using Node.js and Java. Responsibilities include writing tested code, participating in code reviews and architectural decisions, monitoring deployments, supporting production reliability, and collaborating in an agile environment. The role requires Linux, Git, Docker, Docker Compose, testing, and CI/CD experience, with AWS and in-memory database knowledge as advantages.
Summary Generated by Built In

Smadex is a performance advertising engine for mobile apps, enabling the world's leading marketers to grow across Mobile and Connected TV (CTV). Powered by AI models trained on real campaign outcomes, Smadex delivers profitable growth at scale. Headquartered in Barcelona, with teams across the Americas, EMEA, and APAC, Smadex is a business unit of Entravision (NYSE: EVC).

The team

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.

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 Responsibilities

  • 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.

Requirements:

  • 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.

Our Tech Stack

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

What We Offer

  • Integrate a highly motivated, young and dynamic team
  • Great compensation package
  • Top location at the heart of Barcelona with a rooftop terrace, Barbecue, and a fully stocked fridge
  • Great work-life balance: work from home (2 days per week), flexible hours
  • Meal vouchers - Ticket Restaurant monthly allowance
  • Monthly gym allowance: Choose between DiR and Wellhub
  • LinkedIn Learning and training opportunities
  • Monthly TGIF events
  • Regular team-building events
  • Fun and friendly work environment with talented marketers and engineers from over 40 countries
  • And more!

If you want to know more about us visit our website Smadex.com, and for a sneak peek of the cool stuff we build check this video out! And, if you are ready to take your career to the next level and tackle engineering challenges at a global scale, we encourage you to apply!
 

Please note that we do NOT provide VISA sponsorship. Candidates without a legal permit to work in Spain won't be considered.

Skills Required

  • 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 Node.js
  • Knowledge of data structures, algorithms, and software design principles
  • Excellent written and spoken English communication skills
  • Proficiency with Linux, Git, Docker, and Docker Compose
  • Experience with testing tools and modern CI/CD frameworks
  • Experience with key-value stores and in-memory databases such as Redis or Memcached
  • Familiarity with cloud environments, particularly AWS
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The Company
HQ: Barcelona
107 Employees

What We Do

Smadex is the transparent DSP engineered for growth. The number one solution for user acquisition, retargeting and branding campaigns. We address the challenges and concerns of marketers by providing a fully transparent platform built on strong technology, countless programmatic management features and powerful machine learning algorithms that focus on achieving real outcomes. Advertisers can access global consumers on the highest quality brand safe and viewable inventory at scale, and capture attention using strong and engaging ad formats to drive performance sales and brand metrics. Smadex partners with the leading third party platforms to provide the most innovative solutions and independent measurement. Our open platform can easily plug and play with any new external partners. Smadex is a technology company led by engineering and data science, working with agencies and direct clients across the globe. Smadex is a business unit of Entravision Communications (NYSE: EVC)

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