Platform Engineer: Internal Tools & Integrations

Smadex; Barcelona; Hybrid; EUR 42,000 - 64,000; Full time

Benefits offered by this job

Hybrid work

Rooftop terrace

Meal vouchers

Gym allowance

Team events

Ping-pong table

Job summary

Smadex, a Barcelona-based performance advertising engine, seeks a Software Engineer for the Platform Experience team. You will build internal tools, workflows, and integrations to improve efficiency across HR, Marketing, Finance, Sales, and Operations.

The role focuses on pragmatic, end-to-end engineering for internal use, translating business problems into scalable technical solutions without a traditional external-product focus.

Qualifications

• 1+ years of software engineering experience.
• Strong full-stack skills with end-to-end solution delivery.
• Experience with APIs, integrations, and business workflows.
• Good judgment between build vs. buy and automation vs. manual.
• Comfort in ambiguous environments with evolving requirements.
• Strong communication with technical and non-technical stakeholders.

Responsibilities

• Build internal tools, workflows, and lightweight applications for engineering and non-engineering teams.
• Design and implement integrations between internal systems and third-party platforms.
• Collaborate with stakeholders to understand processes, pain points, and business needs.
• Translate ideas into clear technical plans and pragmatic solutions.
• Evaluate build-vs-buy tradeoffs and recommend simple viable approaches.
• Improve or automate manual processes involving spreadsheets, approvals, documents, CMSs, and emails.
• Deliver end-to-end solutions across frontend, backend, integrations, and data flows as needed.
• Help define lightweight intake, scoping, and ownership practices for internal requests.
• Ensure solutions are maintainable, secure, and well documented.
• Partner with broader engineering to align on standards and capabilities.

Skills

Full-stack development

APIs

End-to-end delivery

Stakeholder management

Ambiguity handling

Ownership

Communication

Tools

Adobe Sign

Google Workspace

Salesforce

HubSpot

Job description

Smadex, a Barcelona-based performance advertising engine, seeks a Software Engineer for the Platform Experience team. You will build internal tools, workflows, and integrations to improve efficiency across HR, Marketing, Finance, Sales, and Operations.

The role focuses on pragmatic, end-to-end engineering for internal use, translating business problems into scalable technical solutions without a traditional external-product focus.