Toloka is a data company founded in 2014 and headquartered in Amsterdam that supplies human-generated training, fine-tuning and evaluation data for artificial intelligence systems. It began as a large-scale crowdsourcing platform and has repositioned around expert work, combining domain specialists, machine learning tooling and quality control pipelines to produce reasoning traces, preference rankings and agentic task data. Operating within the Nebius group and backed by Bezos Expeditions since 2025, the company serves frontier model laboratories and enterprises building their own systems.
HQ: Amsterdam, Netherlands • Machine Learning • Data & Analytics • Data Collection • LLM & Generative AI • Artificial Intelligence • 51-200 employees • Est. 2014
Remote (Europe, United States) • Freelance
Ebury is a London financial technology company founded in 2009 that provides cross border payments, foreign exchange and trade finance to small and mid-sized businesses. It operates in dozens of currencies through its own platform and local payment infrastructure. The company is majority owned by Santander and serves clients across Europe, the Americas and Asia.
HQ: London, United Kingdom • Information Technology • LLM & Generative AI • Financial Services • 1001-5000 employees • Est. 2009
≈ $43k – $112k per year (Estimated) • Senior • In office (Porto, Portugal) • Senior • English: C1
Python
SQL
Databases
Google BigQuery
DevOps
GCP
Google Cloud Run
HostPapa is a Canadian hosting company founded in 2006 and headquartered in Burlington, Ontario. It provides domains, web hosting and cloud services to small businesses. The company serves customers in dozens of countries.
HQ: Burlington, Canada • Content Creation • Web Hosting • Internet Services • 51-200 employees • Est. 2006
≈ $93k – $205k per year (Estimated) • Senior • Remote (EU, Europe) • Senior • English: B2
Python
Databases
Apache Kafka
NATS
PostgreSQL
Trino
AI/ML
Flink
RAG
Anthropic
Model Context Protocol
OpenAI
DevOps
AWS
Azure
Docker
GCP
Kubernetes
Tryolabs is a specialized AI and machine learning solutions company that helps companies create business value by partnering with them through their AI journey.
Data & Analytics • Machine Learning • Artificial Intelligence • Est. 2009
≈ $93k – $205k per year (Estimated) • Senior • Remote • Full-Time • Senior
Python
SQL
AI/ML
Time Series Forecasting
Analytics
A/B Testing
Blockchain Capital is one of the earliest dedicated digital asset venture firms, founded in 2013 in San Francisco. It has invested across many funds in exchanges, infrastructure, decentralised finance and consumer applications. The firm was also a pioneer of tokenised fund structures, issuing a security token to represent limited partner interests.
HQ: San Francisco, United States • Blockchain & Crypto • Est. 2013
≈ $68k – $176k per year (Estimated) • Senior • Remote (EU, Europe, United Arab Emirates, South Africa) • Full-Time • Senior
Python
Rust
Databases
MariaDB
MySQL
DevOps
CI/CD
GitOps
HAProxy
Kubernetes
Terraform
ArgoCD
GitHub Actions
GitLab CI
GitHub
GitLab
≈ $80k – $147k per year (Estimated) • Senior • 5+ years exp • Remote (United Kingdom, Argentina, Brazil, Bulgaria, Canada) • Full-Time • Senior
Python
Rust
Databases
Milvus
OpenSearch
pgvector
PostgreSQL
Qdrant
Weaviate
AI/ML
Embeddings
Hybrid Search
Recommender Systems
DevOps
CI/CD
GitOps
HAProxy
Kubernetes
Terraform
Vector
ArgoCD
GitHub Actions
GitLab CI
GitHub
GitLab
Hostelworld is an Irish travel technology company founded in 1999 and based in Dublin. Its platform books hostel accommodation in thousands of cities. The company is listed on the London Stock Exchange.
HQ: Dublin, Ireland • Outdoor Sports • Travel & Tourism • Luggage & Bags • Est. 1999
≈ $37k – $94k per year (Estimated) • Middle • 3+ years exp • Remote/Hybrid (Porto, Portugal) • Full-Time • Middle
Python
SQL
Databases
Google BigQuery
Snowflake
AI/ML
Time Series Forecasting
Airflow
dbt
Streamlit
DevOps
Git
Analytics
A/B Testing
Power BI
Tableau
ETL/ELT
Marketing
Google Ads
Inetum is an international IT services and consulting firm specializing in digital transformation, software development, cloud infrastructure, and artificial intelligence solutions. Formerly known as Gfi Informatique, the company provides tailored technology integration and enterprise services to both public sector entities and private corporations across dozens of countries. Headquartered in France, it employs tens of thousands of digital experts dedicated to helping organizations modernize their operations and accelerate technological innovation.
HQ: Saint-Ouen-sur-Seine, France • HQ: Brussels, Belgium • Corporate Training • LLM & Generative AI • Cybersecurity • Cloud Computing • IT Consulting • Information Technology • 5000+ employees
≈ $27k – $67k per year (Estimated) • Middle • 3+ years exp • Remote/Hybrid (Porto, Portugal) • Full-Time • Principal • Portuguese
Python
SQL
Python
pySpark
Databases
Databricks
AI/ML
Polars
Spark
Airflow
DevOps
CI/CD
Git
Rest API
AWS
Azure
GCP
≈ $27k – $69k per year (Estimated) • Middle • 3+ years exp • In office (Porto, Portugal) • Full-Time • Principal • English: C1
Python
SQL
Analytics
Tableau
ETL/ELT
In office (Porto, Portugal) • Master's Degree • Full-Time • Principal • English: C1
Java
Python
SQL
Java
Spring Boot
Databases
Oracle
DevOps
CI/CD
Docker
GitLab CI
Jenkins
Kubernetes
GitLab
SportyBet is an international sports betting, gaming, and digital entertainment platform owned by Sporty Group. Founded by Sudeep Ramnani in 2013, the platform is a market-leading sports betting operator in Africa - with operations across Nigeria, Ghana, Kenya, Zambia, Tanzania, and Uganda - and has expanded internationally into markets like Brazil.
HQ: London, United Kingdom • Gaming • Sports • iGaming & Gambling • Sports Betting • Est. 2013
Middle • 4+ years exp • Remote (LATAM, Europe) • Middle
Go
Python
Databases
MongoDB
MySQL
Amazon Aurora
Amazon DocumentDB
Amazon Redshift
ElasticSearch
PostgreSQL
RabbitMQ
DevOps
Ansible
ArgoCD
AWS
CI/CD
Helm
Jenkins
Kubernetes
SLI/SLO/SLA
Terraform
GitHub
Alertmanager
Grafana
Loki
Prometheus
≈ $65k – $160k per year (Estimated) • Junior • 2+ years exp • Remote (Europe, Asia) • Junior
Python
SQL
AI/ML
Spark
Recommender Systems
DevOps
AWS
Azure
GCP
ODAIA is developing cutting-edge predictive analytics AI platforms to facilitate improved health journeys by enhancing interactions with healthcare providers and the pharma industry.
Pharmaceuticals • Health Care • Artificial Intelligence • Est. 2018
≈ $76k – $170k per year (Estimated) • Equity • Middle • 3+ years exp • Remote • Middle
Python
SQL
Databases
DynamoDB
Snowflake
AI/ML
Claude
Dagster
Together AI
AI Agents
DevOps
AWS
AWS Lambda
CI/CD
Amazon ECS
Amazon S3
API Gateway
Analytics
ETL/ELT
Marketing
Salesforce
Valtech is a global digital transformation company that combines technology, creativity, data, and strategy to help organizations grow and innovate. It delivers services in experience design, enterprise transformation, commerce, marketing, data, and artificial intelligence. Valtech works with clients across industries such as retail, finance, manufacturing, mobility, healthcare, luxury, and travel.
HQ: London, United Kingdom • Commerce • E-commerce Platforms • Information Technology • IT Consulting • Est. 1993
≈ $91k – $230k per year (Estimated) • Remote (AMER, Europe) • Internship
Python
SQL
Databases
Apache Kafka
Databricks
ElasticSearch
Google BigQuery
AI/ML
Google ADK
Hadoop
Spark
DevOps
AWS
Azure
GCP
Analytics
ETL/ELT
Ruby Labs is a self-funded technology company that develops subscription-based digital consumer products across the health, wellness, education, and entertainment sectors. Leveraging an engineering-led architecture and proprietary data analytics, the firm builds scalable mobile applications designed to reach tens of millions of active global users. Operating with a remote-first, data-driven approach, the company focuses on creating high-impact consumer apps backed by internal marketing automation and custom payment infrastructures.
HQ: Los Angeles, United States • Health Care • Wellness • Software • Mobile App Development
Remote (EU, Ukraine) • Full-Time
Python
Ruby
SQL
Databases
ClickHouse
Google BigQuery
AI/ML
dbt
Dagster
DevOps
CI/CD
Grafana
Prometheus
Analytics
ETL/ELT
Remote (EU, Bosnia and Herzegovina, Kazakhstan, Montenegro, Serbia) • Full-Time
JavaScript
Python
Ruby
SQL
Databases
ClickHouse
Google BigQuery
AI/ML
dbt
DevOps
CI/CD
GCP
Git
Marketing
Google Ads
Meta Ads
Ascendion is a software engineering solutions company that offers engineering, cloud, data, experience design, and talent solution capabilities to accelerate the digital transformation of its 2000+ global clients.
Bengaluru • Vadodara • Hyderabad • Mumbai • Chennai • Science & Engineering • Artificial Intelligence • 1001-5000 employees • Est. 2022
Remote (APAC, Europe, North America)
Python
SQL
Python
pySpark
Databases
Amazon Redshift
Google BigQuery
MongoDB
AI/ML
AI Agents
NumPy
Pandas
Spark
Mobile
JUnit
DevOps
Azure
CI/CD
Git
Amazon S3
QA
Pytest
N-iX is a global software development and IT consulting company founded in Lviv, Ukraine, in 2002. The firm partners with enterprise clients, mid-sized businesses, and tech startups to deliver custom software engineering, cloud transformation, AI and data analytics, and embedded systems solutions. Operating across multiple delivery hubs in Europe and the Americas, it focuses on helping organizations scale their engineering capabilities and accelerate digital transformation.
HQ: Lviv, Ukraine • HQ: Valletta, Malta • Data & Analytics • Artificial Intelligence • Software • 1001-5000 employees • Est. 2002
$72k – $84k per year • Senior • 4+ years exp • Kraków • Remote (Europe) • Bachelor's Degree • Senior
Python
SQL
Databases
SAP HANA
Snowflake
DevOps
Azure
GCP
Cybersecurity
GDPR
Overstory is a software company that helps businesses automate their processes and make better decisions. We offer a suite of products that can help you manage your workflows, track your progress, and get insights into your data. Our mission is to help businesses of all sizes unlock the power of their data and achieve their goals.
Nice • San Francisco • Earth Observation • Artificial Intelligence • Machine Learning • 51-200 employees
≈ $160k – $270k per year (Estimated) • Staff+ • 8+ years exp • Remote (United States, France, United Kingdom, Canada, Denmark) • Staff • Lithuanian (Optional) • Finnish (Optional) • Estonian (Optional) • Dutch (Optional) • Bulgarian (Optional) • Afrikaans (Optional) • Russian (Optional) • Portuguese (Optional) • Italian (Optional) • French (Optional) • Spanish (Optional) • German (Optional)
Python
AI/ML
PyTorch
Scikit-learn
XGBoost
Vertex AI
DevOps
GCP
Cybersecurity
GDPR
Nansen is a blockchain analytics company founded in 2019 and headquartered in Singapore. It labels hundreds of millions of wallet addresses so that users can follow the activity of funds, market makers and prominent traders across chains. The platform is used for token research, portfolio tracking and monitoring flows into and out of protocols.
HQ: Singapore • Est. 2019
≈ $71k – $182k per year (Estimated) • Senior • Remote (Europe, Singapore) • Visa sponsorship • Senior
Python
SQL
Databases
ClickHouse
PostgreSQL
AI/ML
Claude
Claude Code
Cursor
dbt
Web3
Nansen
Sigma Software Group is a global software engineering and IT consulting company founded in 2002. Part of the Swedish IT consultancy group Sigma AB (owned by Danir AB) since 2006, the company combines Nordic management practices with Eastern European software engineering talent.
HQ: Stockholm, Sweden • HQ: Kharkiv, Ukraine • Information Technology • IT Outsourcing • IT Consulting • Software • Est. 2002
≈ $43k – $112k per year (Estimated) • Senior • 5+ years exp • Lisbon • Remote (Portugal) • Full-Time • Senior
Python
SQL
Python
pySpark
Databases
Databricks
Delta Lake
Google BigQuery
AI/ML
Airflow
Spark
DevOps
AWS
Azure
CI/CD
GCP
Analytics
ETL/ELT
CAST AI is an AI-driven cloud automation and Kubernetes cost optimization platform built to help enterprises manage, scale, and secure their cloud infrastructure. Founded in 2019 and headquartered in Miami, Florida, the company automates cloud operations across major hyper-scalers including Amazon Web Services (AWS), Google Cloud Platform (GCP), and Microsoft Azure.
HQ: Miami, United States • Information Technology • Virtualization • DevOps
Equity • Senior • 5+ years exp • Remote (EU) • Internship • Senior
SQL
Databases
ClickHouse
Google BigQuery
Snowflake
AI/ML
Hugging Face
Time Series Forecasting
Feast
MLFlow
DevOps
Akamai
Kubernetes
AWS
Azure
GCP
Docplanner is a healthcare technology company headquartered in Amsterdam, Netherlands, and founded in 2012. It provides a digital platform for patients to find and book medical appointments while offering healthcare professionals practice management software, online marketing tools, and patient communication systems. The company operates in 13 countries across Europe and Latin America, including Poland, Spain, Italy, and Brazil, serving over 100 million monthly patients through brands such as Doctoralia and ZnanyLekarz.
HQ: Amsterdam, Netherlands • Customer Relationship Management (CRM) • Business Process Automation (BPA) • Software • Online Directories & Classifieds • Internet Services • Health Care • Digital Health • 201-500 employees • Est. 2012
Barcelona • Amsterdam • Warsaw • Remote (Europe) • Freelance • Spanish: C2
Natixis is a French multinational financial institution that serves as the corporate, investment banking, and asset management arm of Groupe BPCE. Headquartered in Paris, the firm provides tailored capital markets advisory, corporate financing, wealth management, and insurance solutions to global corporations, financial institutions, and institutional investors. Operating across dozens of countries, it combines international reach with specialized industry expertise to drive sustainable growth for its clients worldwide.
HQ: Paris, France • Financial Services • Banking • Investment Banking
≈ $37k – $92k per year (Estimated) • Middle • 3+ years exp • Remote/Hybrid (Porto, Portugal) • Bachelor's Degree • Full-Time • Senior
Novanta supplies photonics, vision and precision motion components to equipment manufacturers. Its lasers, encoders and imaging subsystems go into medical and advanced industrial machines. The company operates through a family of specialised engineering brands.
HQ: Bedford, United States • Information Technology • Data & Analytics • Health Care • 501-1000 employees • Est. 1968
$101k – $162k per year • Senior • 7+ years exp • United States • Remote (AMER, APAC, Europe) • Bachelor's Degree • Full-Time • Senior
Python
SQL
Databases
Amazon Redshift
Databricks
Google BigQuery
Snowflake
AI/ML
Dagster
dbt
Embeddings
LLM
RAG
AI Agents
Function Calling
DevOps
Azure
Azure DevOps
CI/CD
Git
GitHub Actions
GitLab CI
GitHub
GitLab
Analytics
Power BI
Salary range
| Seniority |
Jobs |
25% |
Median |
75% |
| Senior |
11 |
$78K |
$114K |
$124K |
| All levels |
24 |
$66K |
$97K |
$127K |
Few employers in this selection publish pay, so these figures are Alion estimates built from comparable listings by role, level and country. Gross annual, converted to USD.
The market right now
Alion currently lists 43 open Data Scientist jobs in Porto from 36 companies. 6 of them were posted or refreshed in the last seven days. 28 of the employers have posted something in the last three months, which is the pool worth watching if you are starting a search now. Every listing links straight to the employer, so you apply on their own board rather than through an intermediary.
What these roles pay
Most employers in this selection do not publish a figure, so the range below is Alion's own estimate, derived from 24 comparable listings priced by role, level and country. Across them the middle half of the market sits between $66K and $127K a year, with a median of $97K. Figures are gross annual amounts converted to US dollars, so roles in different currencies stay comparable.
Where the work is
The largest concentrations of these roles are Portugal (15), Poland (2), United States (1), Netherlands (1), and Spain (1). 74% of the listings are fully remote and a further 9% are hybrid, so a large part of this market is open to you regardless of where you live.
Who is hiring
The employers with the most open Data Scientist jobs in Porto right now are Inetum (3), Euronext (3), Blockchain Capital (2), SportyBet (2), Ruby Labs (2), and Toloka AI (1). Each company page on Alion carries its size, funding stage, tech stack and every other position it has open, so you can judge the employer before you spend an evening on the application.
What employers ask for
Reading across the current listings, the tools that come up most often are Python (32), SQL (31), CI/CD (17), Azure (15), ETL/ELT (13), AWS (13), GCP (12), and Google BigQuery (12). The counts are how many of these openings name each one, which is a better guide to what is actually being hired for than a generic skills list.
Relocation, visas and equity
Of the current Data Scientist jobs in Porto, 2 state visa sponsorship, 1 offers a relocation package, and 4 include equity. These are filters on the list above, so you can narrow it to the ones that make a move possible for you.
