[Hiring] MarTech Full Stack Developer @leadtech

Role Description

We’re looking for a MarTech Full-Stack Developer to join our Marketing Technology & AdTech team. This is not the kind of “full-stack” role where you’ll spend your life centering buttons or debating border-radius values for three sprints. You’ll be working at the intersection of engineering, attribution, internal tooling, and growth — building the systems that make campaign measurement reliable, data flows usable, and marketing teams less dependent on guesswork.

You’ll help us maintain and evolve the technical backbone behind tracking, postbacks, schemas, integrations, and internal tools. That includes working on our internal CRM/tooling, improving how marketing teams operate, and making sure data moves where it should, when it should, and in the format it should.

You’ll collaborate closely with performance marketers, product owners, developers, and data stakeholders, acting as a bridge between business needs and technical implementation.

And just so we’re clear: we don’t really care what you studied or where. Computer Science, Physics, Philosophy, self-taught, bootcamp, or “learned by breaking production and fixing it later” — all valid. We care about what you can do, how you think, and how you take ownership. Also: if you use AI to move faster, think better, document clearer, or automate boring work — great. That’s a plus.

Qualifications

• Strong backend experience with Node.js, Typescript, and Python.
• Experience with APIs, REST, webhooks, and server-to-server integrations.
• Solid understanding of tracking, attribution, or event-based systems.
• Experience building or maintaining data pipelines.
• Ability to work with SQL / NoSQL databases.
• Experience with cloud environments and serverless architectures.
• Strong ownership mindset — you improve systems, not just complete tasks.
• Strong communication skills in English (written and spoken). Spanish is nice to have.

Requirements

• Experience with the Google Cloud Platform ecosystem, especially:
• BigQuery (data warehousing & analysis)
• Cloud Functions / serverless workloads
• Pub/Sub (event-driven systems)
• Cloud Scheduler (orchestration / jobs)
• Datastore / Firestore (operational data & lightweight storage)
• Experience defining and maintaining tracking schemas / event governance.
• Experience building or maintaining internal tools, CRMs, or operational dashboards.
• Comfort working across technical and non-technical stakeholders.

Benefits

• Flexible career path with personalized internal training and an annual budget for external learning opportunities.
• Flexible schedule with flextime.
• Free Friday afternoons with a 7-hour workday, plus a 35-hour workweek in July and August.
• Competitive salary, full-time permanent contract, and top-tier private health insurance (including dental and psychological services).
• 25 days of vacation plus your birthday off, with flexible vacation options—no blackout days!
• Office perks including free coffee, fresh fruit, snacks, a game room, and a rooftop terrace with stunning Mediterranean views.
• Additional benefits include ticket restaurant and nursery vouchers, paid directly from your gross salary.

Company Description

Leadtech is an Equal Employment Opportunity (EEO) Employer, which means we encourage applications from people with different backgrounds, interests, and personal circumstances. Our team welcomes applicants regardless of their race, gender, age, religion, nationality, sexual orientation, and/or disabilities. All we need is your high energy, skills, and willingness to be a part of a great project!