Senior Data Analyst at OnTheGoSystems

OnTheGoSystems; Lisboa; Presencial; EUR 45 000 - 75 000; Tempo integral

Vantagens oferecidas por esta oferta de emprego

100% remote work

Home office computer budget

Kindle with company library

Body & Mind Movement program

Growth opportunities

Resumo da oferta

OnTheGoSystems in Lisboa, PT is seeking a Senior Data Analyst to own analytical problems from start to finish. You will define metrics for translation quality and AI performance, investigate patterns, and turn data into actionable recommendations that guide product and linguist decisions.

This is a hands-on role focusing on evidence-based understanding rather than routine reporting. You'll extract from SQL databases, NoSQL, logs, APIs, and CSVs, compare language pairs and models, validate

Qualificações

• Strong analytical thinking and attention to detail.
• Ability to work independently and define what should be investigated.
• Experience turning open-ended questions into structured analyses and actionable recommendations.
• 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.

Responsabilidades

• Own analytical problems from start to finish and define what to measure.
• Investigate why patterns occur and turn observations into actionable recommendations.
• Define meaningful metrics for translation quality, AI performance, and user behavior.
• Monitor trends and identify unusual patterns or quality issues.
• Extract and combine data from SQL databases, NoSQL databases, logs, APIs, and CSV exports.
• Build repeatable reports, scripts, and monitoring processes.
• Communicate findings clearly to developers, product managers, and linguists.

Conhecimentos

Analytical thinking

Independent work

Open-ended analysis

Metrics & analytics

Communication

English + another language

Ferramentas

SQL

Python

Descrição da oferta de emprego

Senior Data Analyst at OnTheGoSystems in Lisboa, P11, PT

This Full time on site position offers great opportunities for career growth. 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.

• 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.