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. If you are ready to boost your professional career in the tech world, this is your opportunity.
About the role
We are looking for a Software Engineer to joinour Platform Experience team. This role will focus on building internal tools, integrations, workflows, and business solutions for teams across the company, such as HR, Marketing, Finance, Sales, and Operations.
The idóneo candidate is a pragmatic, end-to-end engineer who is comfortable working with greenfield ideas, understands how to translate business problems into simple technical solutions, and can decide when to build, integrate, automate, or leverage existing tools.
This is not a traditional product engineering role focused on external customers.



It is a high-impact internal role focused on improving company efficiency through well-scoped, maintainable solutions.
What you will do
- Build internal tools, workflows, and lightweight applications for engineering and non-engineering teams.
- Design and implement integrations between internal systems and third-party platforms.
- Work directly with stakeholders to understand processes, pain points, and business needs.
- Translate ideas and suggestions into clear technical plans and pragmatic solutions.
- Evaluate build-vs-buy tradeoffs and recommend the simplest viable approach.
- Improve or automate manual processes involving spreadsheets, approvals, documents, CMSs, email flows, and internal operations.
- Deliver end-to-end solutions across frontend, backend, integrations, and data flows when needed.
- Help define lightweight intake, scoping, and ownership practices for internal requests.
- Ensure solutions are maintainable, secure, and a

📌 Internal Tools Engineer (España)
🏢 Smadex
📍 España