Marketing Technology Specialist

Nexo; España; Hybrid; EUR 45,000 - 70,000; Full time

Benefits offered by this job

Competitive remuneration

Annual bonuses

Hybrid work model

Learning Hub access

Career development

Health insurance

Wellness benefits

Transportation cards

Job summary

Nexo in Spain seeks a Martech Analytics Specialist to implement and optimize event tracking across web and mobile platforms. You will own data layers, CDP flows, and privacy controls, collaborating with Marketing, BI, and Engineering to drive data-informed decisions.

The role requires hands-on experience with GTM/GA4, CDPs, Python/JS scripting, and strong SQL skills, with a focus on crypto/fintech analytics in a dynamic, hybrid work environment.

Qualifications

• 2–5 years in marketing or product measurement.
• Hands-on with a tag manager and analytics platform (GTM/GA4).
• Experience with CDP and mobile measurement partners.
• Python or JavaScript scripting for automation and ETL.
• Consent and privacy in practice (OneTrust; GDPR/CCPA).
• Fluent English and ability to explain technical requirements.

Responsibilities

• Implement and test end-to-end event tracking across web and mobile.
• Resolve measurement discrepancies with Engineering and QA teams.
• Build and maintain customer data flows in Segment CDP.
• Script API jobs and ETL tasks to automate reporting.
• Maintain privacy controls and privacy gatekeeping by jurisdiction.
• Peer-review configurations and document the stack.
• Scope requirements with Marketing, BI, and Engineering.
• Analyze mobile performance and inform spend decisions.

Skills

Tag management

GA4

Python

JavaScript

SQL

Looker Studio

Tableau

Data transformation

Privacy compliance

Tools

GTM

Segment

Segment Functions

Tealium

Piwik PRO

Amplitude

Mixpanel

AppsFlyer

Adjust

OneTrust

RudderStack

mParticle

Job description

Driving the next generation of wealth. Digital assets are redefining how wealth is created, used, and transferred. Since 2018 at Nexo, we have been building the future model of financial wealth - dynamic, accessible, and designed for a new generation of forward-thinking investors.

Driving the next generation of wealth. Digital assets are redefining how wealth is created, used, and transferred. Since 2018 at Nexo, we have been building the future model of financial wealth - dynamic, accessible, and designed for a new generation of forward-thinking investors. But technology alone doesn’t drive progress. People do. We are a team of builders, strategists, analysts, creatives, and operators united by a shared mindset: advancement. We move fast, think long term, and take ownership. We challenge ideas, not people. We value clarity over noise and impact over optics.What makes Nexo different? We shape industry trends. We rethink how wealth works and build solutions that reflect that belief. That requires a certain kind of person. You will thrive here when you think independently and act decisively, take ownership without waiting for permission, and care deeply about quality, long-term value, and disciplined execution. The people who succeed at Nexo bring analytical depth, sound judgment, and resilience - but also curiosity and the drive to keep improving. This is an environment for people who want to lead, create, and elevate what already exists. If building what’s next excites you, you’ll feel at home at Nexo. Official website: nexo.comYour Role

• Implement and test end-to-end event tracking across web and mobile in GTM, Segment, Adjust, and GA4; own the event schema and the data Layer specification.
• Resolve measurement discrepancies with Engineering: platform against platform, app against web, expected against what actually fired, and validate attribution.
• Build and maintain customer data flows in Segment CDP: sources, destinations, identity resolution, and the governance that stops the schema from drifting.
• Script API jobs and maintain ETL tasks in Python or JavaScript so reporting, audience syncs, and QA checks run without manual effort.
• Keep consent and privacy watertight: CMP/OneTrust mappings, tag gating by jurisdiction, and PII review before anything ships.
• Peer-review new configurations, and document the stack so it is not held in one person’s head.
• Scope requirements with Marketing, BI, and Engineering, prioritize by business impact, and deliver on schedule.
• Track and analyze mobile performance through Adjust, and turn it into decisions on spend and creativity.

What Makes You Stand Out

• 2-5 years implementing marketing or product measurement, in-house or agency-side (tech, fintech, or crypto a plus).
• Hands-on with a tag manager and an analytics platform - GTM and GA4, or equivalents such as Tealium, Piwik PRO, Amplitude, or Mixpanel. You have built and debugged a dataLayer, not only read the reports.
• Working knowledge of a CDP (Segment, RudderStack, mParticle, Tealium) and of a mobile measurement partner (Adjust, AppsFlyer, Branch, or similar).
• Scripting in Python or JavaScript for automation and data transformation, plus SQL for data pulls, QA, and troubleshooting ETL tasks.
• Consent and privacy in practice: a CMP such as OneTrust, and GDPR/CCPA obligations.
• Professional fluency in English (our working language), and the ability to explain technical requirements and project status to people who do not work in martech.
• Server-side tagging, server-side GTM, or Segment Functions.
• App measurement specifics: SKAdNetwork, deep links, deferred deep linking.
• Dashboards in Looker Studio or Tableau.
• Certification in an analytics, CDP, or marketing automation platform.
• Prior experience in crypto, Web3, or regulated financial products.

Nexo Benefits

• Competitive and rewarding remuneration package.
• Annual performance-based bonuses.
• Comprehensive Learning Hub for continuous growth.
• Hybrid work model: primarily office-based with scheduled home office flexibility.
• A dynamic and inspiring environment with cutting-edge projects.
• Career development opportunities in a global leader driving the next generation of wealth.
• Customizable personal benefits package.
• Wellness benefits include additional health insurance, all-access sports cards, team-wide sports activities, standing desks, and blue light glasses.
• Parking and public transportation cards at preferential rates, plus free electric bikes.
• Fresh fruits, snacks, and a well-stocked office kitchen.
• Regular department team buildings and company-wide team buildings.