Sergey Yaremenko
Intelligence Product Builder

I build intelligence systems that turn data into decisions.

15 years across product, data, ML, and AI. Knowledge graphs, multi-agent search, anomaly detection, decision-support layers.

Built products at
  • MacPaw
  • PandaDoc
  • OLX
  • PeopleForce
Knowledge graphsMulti-agent systemsAnomaly detectionScoring & matchingPredictive modelsRAG pipelinesHybrid searchCUPEDUplift modelingSequential testingClickHouseNeo4jBigQuerySnowflakeRedshiftdbtPrefectAirflowPydantic AIVertex AIClaudeGeminiPythonSQLRTypeScriptSupabaseVercelKnowledge graphsMulti-agent systemsAnomaly detectionScoring & matchingPredictive modelsRAG pipelinesHybrid searchCUPEDUplift modelingSequential testingClickHouseNeo4jBigQuerySnowflakeRedshiftdbtPrefectAirflowPydantic AIVertex AIClaudeGeminiPythonSQLRTypeScriptSupabaseVercel
What I build

Cases: click to open details

  1. case · 01open →
    DOGER

    Decision intelligence for Europe's public data

    doger.ai
    regulatory filingscorporate registrymarket datatrade flowssentimentNEO4Jknowledge graphsearchanomalyranking
    open-data graph stack
    • Neo4j
    • Pydantic AI
    • Prefect
    • XGBoost
    • Claude
    full case →
  2. case · 02open →
    Scaleo

    A from-scratch AI product for partner marketing

    scaleo.io
    F140%F225%F320%F415%ANOMALY FEEDS214:32spike +218%S113:08drop -64%S311:21rate-of-changeS209:55deviation > 3σ
    match score · live alerts
    • ClickHouse
    • Airflow
    • Looker
    • AWS
    • LLM agents
    full case →
  3. case · 03open →
    OLX

    Personalization for shoppers who never log in

    olx.pt
    TRIGGERlifecycle_stage = renewalcompatibility < 0.65context_signal matchCOHORT SPLIT47%LOGGED-INlogged-in 47%anonymous 53%
    trigger · cohort · activation
    • Braze
    • Recommendations ML
    • BigQuery
    • Productboard
    • A/B
    full case →
  4. case · 04open →
    PeopleForce

    Product turnaround through a wartime pivot

    peopleforce.io
    $787K · Q3$1.8M · Q2+128% ARR
    ARR · 4-quarter view
    • Productboard
    • Roadmap
    • Discovery
    • Cross-functional
    full case →
  5. case · 05open →
    PandaDoc

    Rebuilt the editor that drives growth

    pandadoc.com
    DOC OPEN100%100%+14ppFIRST FIELD78%92%+25ppSIGNATURE42%67%+23ppCOMPLETE18%41%beforeafter
    completion funnel · before vs after
    • Discovery
    • Product analytics
    • A/B testing
    • User research
    full case →
  6. case · 06open →
    ЛУН

    Smarter listing ranking on the top property site

    lun.ua
    SLOTBEFOREAFTERLIFTP1$2.10$2.78+32%P2$1.45$1.92+33%P3$0.95$1.20+27%P4$0.62$0.74+19%
    rev / impression by slot
    • ML ranking
    • ClickHouse
    • Python
    • SQL
    • BI
    full case →
  7. case · 07open →
    MacPaw

    Built the data & analytics function from zero

    macpaw.com
    snowplowS3glueredshiftlookerDATAHUB · TB / MO · 5 PRODUCTSTEAM1 → 10
    DataHub · ETL pipeline
    • Redshift
    • AWS
    • ETL
    • Monte Carlo
    • BI
    full case →
0107
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