Senior Data Analyst

OnTheGoSystems

Barcelona, ESremote countryPosted Aug 4, 2026
Posting intelligenceActively listed

Skills

pythonllm

About the role

At OnTheGoSystems, we're building AI systems that help people translate content across many languages. Our LLM team works with AI-generated translations, user edits, customer feedback, and quality data to continuously improve translation quality.

We're looking for a Data Analyst who enjoys solving open-ended problems, finding patterns in complex datasets, and turning data into practical recommendations. This is not a reporting role. You'll decide what to measure, investigate why things happen, and help the team make better decisions based on evidence.

What you'll do

You'll own analytical problems from start to finish.

For example, you may discover that users edit translations much more often for one language pair than another. Instead of simply reporting it, you'll investigate why. You'll form hypotheses, gather the data, test possible explanations, and recommend the next steps.

Your work will include:

Defining meaningful metrics for translation quality, AI performance, and user behavior.

Monitoring trends and identifying unusual patterns or quality issues.

Turning observations into structured investigations and testing multiple hypotheses.

Extracting and combining data from SQL databases, NoSQL databases, logs, APIs, and CSV exports.

Comparing results across language pairs, AI models, providers, customers, content types, traffic levels, and other dimensions.

Separating real signals from coincidence by validating findings with data.

Reviewing translation samples to confirm whether patterns represent genuine quality issues.

Investigating root causes and recommending practical improvements.

Evaluating multilingual AI output for meaning, terminology, tone, formality, grammar, pronouns, and consistency.

Using AI tools, dictionaries, and other resources to investigate languages you don't speak, while recognizing when expert linguistic input is needed.

Reviewing AI-generated analyses, identifying incorrect conclusions, and helping improve our automated evaluation systems.

Building repeatable reports, scripts, and monitoring processes.

Communicating findings clearly to developers, product managers, and linguists.

Requirements

Strong analytical thinking, curiosity, and attention to detail.

The ability to work independently and define what should be investigated.

Experience turning open-ended questions into structured analyses and actionable recommendations.

A solid understanding of metrics, segmentation, distributions, correlations, and the difference between correlation and causation.

Experience writing SQL, Python, or similar scripts to collect, clean, and analyze data.

Experience working with multiple data sources, including databases, logs, APIs, and exported datasets.

Strong hands-on experience using AI tools while critically evaluating their output.

Fluent English plus at least one additional language (preferably European), with the ability to assess translation quality and explain language issues.

Clear written communication and the ability to explain analytical findings to non-technical colleagues.

Bonus points for experience with:

Translation quality or localization.

Multilingual content.

Data visualization or business intelligence tools.

Benefits

You'll work on real AI systems used by customers around the world and directly influence how we measure and improve machine translation quality.

This role is ideal for someone who enjoys exploring difficult questions, testing ideas, and discovering insights that aren't immediately obvious. You'll have the freedom to propose your own analyses and the responsibility to turn them into evidence-based recommendations.

What we offer

100% remote work.

Body & Mind Movement program.

Home office computer budget.

Kindle with access to our company library.

Local public holidays respected.

Excellent opportunities for growth.

Collaboration with talented colleagues across the globe.

Questions about this role

Click "Apply with AI Applyd" above and you are done. Your resume is rewritten for this advert, the screening questions are answered, and it is submitted on OnTheGoSystems's own hiring system. No retyping your history, no fourteen tabs, no evening lost.

Compensation for Data Analyst roles in Spain varies widely by seniority, employer size, and remote vs onsite arrangement. Check the salary range on this listing when published, or browse our Data Analyst hub for Spain medians across recent openings.

You never touch the form - the application is filled and submitted for you on OnTheGoSystems's own hiring system. It is not marked sent when we press submit. It is marked sent when a confirmation from their system arrives at the address we apply with, and your dashboard shows which stage each application is at until then.

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