Senior Data Analyst

Hybrus AB; Stockholms kommun; On-site; SEK 669,600 - 892,800; Full time

Job summary

Hybrus AB is seeking a Senior Data Analyst for a 6-month fixed-term contract in Stockholm. The role involves strengthening the measurement and analysis of recommendation systems, collaborating with engineering and product teams.

Key responsibilities include designing A/B tests, building dashboards, and ensuring reproducible work with proper documentation. Ideal candidates will have 5+ years in analytics or data science with strong SQL and Python skills, and experience in ML-driven products.

Qualifications

• 5+ years in an analytics or data science role with a proven track record.
• Direct experience with recommendation systems, search, or large-scale ML products.
• Strong SQL skills and comfort with large datasets.

Responsibilities

• Own the measurement of recommendation experiments.
• Investigate model and system behavior.
• Build dashboards and data models the team relies on.

Skills

Analytics

Data Science

SQL

Python

A/B Testing

Statistics

Tools

BigQuery

dbt

Looker

Job description

We are looking for a Senior Data Analyst for our client in Stockholm, to strengthen the measurement and analysis layer around their recommendation systems, working alongside engineering & product.

Employment type: Fixed term contract

Duration: 6 Months

Location: Stockholm

Job Type: Onsite (potential hybrid option)

Scope of the engagement

• Own the measurement of recommendation experiments - design A/B tests, define success metrics, and deliver readouts that explain not just whether something worked but why.
• Investigate model and system behavior: ranking quality, retrieval coverage, exposure and feedback effects, and the gaps between offline metrics and online outcomes.
• Build the dashboards, data models, and self-serve tooling the team relies on to monitor recommendation health, and leave them in a state the team can maintain after the engagement.
• Partner with engineers and PMs to scope analytical questions sharply - clarifying the objective and sizing the opportunity before they turn into long projects.
• Surface insight proactively: the segment behaving oddly, the metric drifting, the counterfactual worth running.

We care about the deliverables and the handover. Work should be reproducible and documented well enough that it outlives the contract.

What you bring

• 5+ years in an analytics or data science role, with a track record of operating independently and delivering with minimal ramp‑up.
• Direct experience with recommendation, search, ranking, ads, or another large-scale ML-driven product.
• Strong SQL and comfort with large datasets (we work in BigQuery); fluency in Python for analysis beyond SQL.
• A real grasp of experimentation - A/B testing, statistical significance, and the common traps (peeking, interference, novelty effects).
• The instinct to clarify the objective before reaching for a solution, and the discipline to separate what the data shows from what you'd like it to show.
• Clear communication: you can take a messy analysis and land a single, defensible takeaway for any audience, from an engineer to a director.
• A very good understanding and application of advanced statistics.

Nice to have

• Familiarity with recommender systems internals - retrieval, ranking, candidate generation, offline vs. online evaluation.
• Exposure to bandits, off‑policy evaluation, or causal inference.
• Experience building data models and dashboards others depend on (dbt, Looker, or similar).

Please let us know if you are interested and if yes, then apply to [e-mail] with your CV, including details about salary, notice period and visa status.