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Senior Node.js Engineer (Big data)
  • Warsaw
Senior Node.js Engineer (Big data)
Warszawa, Warsaw, Masovian Voivodeship, Polska
ACAISOFT POLAND Sp. z o.o.
7. 2. 2026
Informacje o stanowisku

technologies-expected :


  • Node.js
  • SQL
  • AWS
  • Redshift
  • Swagger

technologies-optional :


  • Apigee
  • Snowflake

about-project :


  • Hi there! If you’re looking for a high-impact position in an ambitious software house, we’ve got a match for you!
  • We are looking for a Node.js Engineer to work with a leading consumer purchase insights company that leverages AI and fully permissioned data from 100M+ consumers to transform purchase signals into actionable business and marketing insights.
  • You will join our core engineering team and work closely with the Lead Engineer. You’ll help expand and future-proof a mission-critical RESTful API that powers insights from massive-scale credit card transaction data. This is not a standard CRUD environment, because our client processes 200+ billion rows. We are looking for someone who writes high-performance SQL, and understands distributed systems.
  • The current stack includes Node.js, Apigee, AWS (Redshift, RDS Postgres, S3). You’ll maintain this high-performance environment while helping drive a migration toward a modern, serverless, Snowflake-based architecture.
  • Working hours: up to a maximum of 7:00 PM CET, with particular importance placed on availability during the final hours of the workday.

responsibilities :


  • Build and maintain scalable RESTful APIs using Node.js.
  • API Development.
  • Define and maintain Swagger / OpenAPI specifications.
  • Write complex, highly optimized SQL for datasets exceeding 200B+ rows.
  • Partner with the Lead Engineer to migrate legacy services into a Snowflake-centric, serverless ecosystem.
  • Data Pipeline Integration.
  • Work across AWS S3, Redshift, and RDS Postgres to ensure high data integrity and efficient data flows.
  • Performance Tuning.
  • Monitor and improve performance across both the Node.js layer and database layer.

requirements-expected :


  • At least 5 years of commercial experience with Node.js.
  • Expert SQL skills: indexing, query planning, and performance tuning at massive scale.
  • Strong experience with AWS (S3, RDS/Postgres, Redshift).
  • Experience designing APIs with Swagger/OpenAPI.

offered :


  • Private medical care
  • Multisport
  • Friendly, informal atmosphere, and direct contact with everyone in the company
  • Modern technologies

benefits :


  • sharing the costs of sports activities
  • private medical care
  • remote work opportunities
  • flexible working time
  • computer available for private use
  • extra social benefits
  • baby layette
  • school layette
  • employee referral program
  • charity initiatives
  • Gift vouchers for kids (birthdays, Christmas, Childs Day)

  • Praca Warszawa
  • Warszawa - Oferty pracy w okolicznych lokalizacjach


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