2,016,522open jobs
119,381companies
249,324added this week
Browse all
Salary
$53k – $87k per year (gross)
Location
Hybrid (Vilnius, Lithuania)
Employment
Full-Time

First seen by Alion on Oct 27, 2026.

Overview
Company
Impact
Profile match
Tesonet is a Lithuanian technology accelerator and holding founded in 2008 and headquartered in Vilnius. It builds and scales software businesses in cybersecurity, data and consumer products. Several of the largest Lithuanian technology companies grew out of it.

Job Description

Datasets is a product within the Source ecosystem that turns real-time public web data into structured datasets for businesses, data teams, and AI developers. Like the other companies across Source, it runs independently while drawing on shared standards and expertise.

The team waiting for you:

Our Engineering team manages a powerful data platform that has unlocked a growing backlog of applied ML work. As a Data Scientist, you will take dedicated ownership of this backlog, driving initiatives like entity resolution, LLM-based structured extraction, and topic modeling. We are rapidly scaling our source acquisition and ingestion workflows, making this the perfect time to join and shape our capabilities. By turning unstructured data into structured, product-ready outputs, you will solve the core challenge of ensuring data accuracy and reliability at scale.

In this role, you will:

  • Develop and maintain entity resolution techniques to match and link records across sources with inconsistent identifiers.
  • Prototype, build, and evaluate LLM and ML-based extraction and inference models that turn unstructured or free-text data into structured outputs.
  • Automate scraping logic and source queue generation using data-driven models to streamline and scale source acquisition workflows.
  • Build, iterate on, and monitor applied ML models to proactively identify data or concept drift.
  • Enrich and enhance datasets with product-ready calculated fields and derived metrics.
  • Assist in building automated or ad-hoc QA validation processes to validate model output accuracy, reliability, and consistency.

Requirements

  • 4+ years of previous experience as a Data Scientist, Data Analyst, or Data Engineer, with a strong background in data modeling, ML, and NLP.
  • Excellent programming skills in Python, proficiency in SQL, and hands-on experience with Spark.
  • Deep, structural thinking with the ability to communicate clearly and align with various stakeholders.
  • A collaborative, self-driven mindset with a keen attention to detail and a propensity to dig into deeper layers to inspire improvements.

Nice to have

  • Experience with Dagster, dbt, Superset, or Trino.
  • Previous experience working closely in a team with data engineers.
  • Strong business acumen and an understanding of how insights convert to value and unlock new revenue.
  • Excellent written and spoken English.

Company offers

  • 40+ internal learning options, external conferences, mentorship, and year-round knowledge-sharing.
  • Private health insurance, psychotherapy, on-site well-being consultants, 24/7 gym access, and a wellness app.
  • Team events, an overseas workation, quarterly team-building budgets, and plenty of ways to mark milestones together.
  • Bonus vacation days, paid life-moment days off, barista coffee, and all the tools you need.
  • Cyber City office perks
  • Hybrid work (3 office days / 2 WFH) & WFA options
  • Latest tools, gadgets & tech stack
  • Extra day off
  • Inclusive family-related time-off policy
  • Physical well-being specialists
  • Psychologist/psychotherapist sessions
  • Vast internal & external learning resources
  • Guilds, communities & 800+ professionals by your side
  • Source network & knowledge sharing
  • Yearly workation
  • Year-round internal & Source community events
  • Team building budget
Free account
Stop reading job ads. Get the ones that fit.
One free account turns this page into a shortlist built around your stack, your level and your pay.
Match on every job. Stack, seniority, pay and location, scored against your profile.
2,016,522 open roles. Read straight off company career pages, refreshed every day.
Unlimited applications. Every one you send is tracked in one place, on-site or on a company board.
3 tailored CVs a month. Rewritten for the exact job you are applying to. Included free.
Create a free account Continue with Google
Free forever. No card. Under a minute.

Your match

How well do you fit this role?
Two answers are enough for a real match. No account needed.
Check my fit
Answers stay in this browser until you create an account.

Recommended for you based on this role

Data Science
Similar stack
Same company
Vilnius
≈ $48k – $99k per year (Estimated) · Hybrid · Full-Time · Vilnius
SQL
Databases
ElasticSearch
Apache Kafka
AI/ML
Spark
Flink
Machine Learning
DevOps
Terraform
GitHub Actions
CloudFormation
CI/CD
Jenkins
AWS
Management
Agile
Apply
≈ $45k – $93k per year (Estimated) · Hybrid · Full-Time · Kaunas
SQL
Databases
ElasticSearch
Apache Kafka
AI/ML
Spark
Flink
Machine Learning
DevOps
Terraform
GitHub Actions
CloudFormation
CI/CD
Jenkins
AWS
Management
Agile
Apply
$51k – $74k per year · Hybrid · Vilnius
Python
JavaScript
SQL
AI/ML
AI Agents
DevOps
GCP
CI/CD
Analytics
ETL/ELT
Management
Agile
Apply
≈ $48k – $99k per year (Estimated) · In office · Full-Time · 5+ years exp · Vilnius
Java
Rust
TypeScript
SQL
Databases
PostgreSQL
Apache Iceberg
Trino
AI/ML
Spark
DevOps
Kubernetes
Apply
$56k – $76k per year (net) · Remote (EU, United Kingdom, Switzerland, Iceland) · Full-Time · Tallinn
Python
SQL
Databases
Snowflake
Apache Iceberg
Google BigQuery
Amazon Redshift
AI/ML
Spark
Airflow
dbt
DevOps
GCP
Azure
AWS
Amazon S3
Analytics
ETL/ELT
AWS Glue
Management
Agile
Apply
$51k – $74k per year · Hybrid · Vilnius
Python
JavaScript
SQL
AI/ML
AI Agents
DevOps
GCP
CI/CD
Analytics
ETL/ELT
Management
Agile
Apply
≈ $48k – $99k per year (Estimated) · In office · Full-Time · 5+ years exp · Vilnius
Java
Rust
TypeScript
SQL
Databases
PostgreSQL
Apache Iceberg
Trino
AI/ML
Spark
DevOps
Kubernetes
Apply
Remote (EU, UTC+2 hours) · Contractor · Bucharest · Kraków · Brno · Budapest · Vilnius
DevOps
Azure DevOps
Azure
Apply
≈ $52k – $107k per year (Estimated) · Hybrid · Kaunas · Vilnius
Go
Java
Ruby
Java
Testcontainers
Databases
MySQL
Redis
Apache Kafka
OpenSearch
AI/ML
Cursor
Claude Code
AI Agents
OpenAI Codex
Agentic Workflows
DevOps
Prometheus
AWS
Kubernetes
Grafana
Amazon S3
Apply
≈ $55k – $114k per year (Estimated) · Hybrid · Vilnius
Go
Java
Ruby
Java
Testcontainers
Databases
MySQL
Redis
Apache Kafka
OpenSearch
AI/ML
Cursor
Claude Code
AI Agents
OpenAI Codex
Agentic Workflows
DevOps
Prometheus
AWS
Kubernetes
Grafana
Amazon S3
Apply
See all jobs
This is one of many
2,016,522 more open roles from verified company boards, updated every day.