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Senior SQL Server DBA / Database Engineer (k/m/n)
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Offer summary

(Summary generated by AI based on the full job description)

The project focuses on managing and optimizing databases in production environments. Required practical expertise in Microsoft SQL Server, experience with database migrations and migration tools, and work with Azure-hosted and on-premises instances. Responsibilities include monitoring and optimizing performance, identifying bottlenecks, query and index optimization, reviewing and standardizing migration scripts, analyzing ORM and application code impact, and using AI for query analysis and diagnostics. 10+ years of experience and C1 English required. Offered long-term projects, flexible cooperation forms and benefits including private medical care and training funding.

Senior SQL Server DBA / Database Engineer (k/m/n)

Company: Nexio Management Sp. z o.o.

from: 15 October 2026
to: 14 November 2026
salary not specifiedB2B contract (full-time)
salary not specifiedcontract of employment
Offer parameters
level:senior
working mode:remote
location:Warszawa, Masovian
Warszawa, Masovian

Requirements

Expected technologies

SQL

Our requirements

  • 10+ years of professional experience in SQL Server DBA / Database Engineering
  • Strong hands-on expertise with Microsoft SQL Server
  • Extensive experience with database migration tools, processes and migration scripts
  • Advanced knowledge of query optimization and index optimization
  • Strong experience diagnosing performance issues in production environments
  • Experience implementing and working with proactive database performance monitoring
  • Good understanding of ORM and how application code can generate database load
  • Experience with Azure-hosted SQL Server environments
  • Experience with on-premises or customer-hosted SQL Server instances
  • Practical experience using AI tools for query analysis, schema review, migration scripts or performance diagnostics
  • English at C1 level
  • Ability to work independently, define technical standards and establish processes for other engineering teams

Your responsibilities

  • Monitor and optimize SQL Server performance across customer production environments
  • Identify and resolve database performance bottlenecks
  • Optimize SQL queries, indexes and database performance
  • Define and enforce standards for database migrations and migration scripts
  • Review migration scripts prepared by development teams before production releases
  • Set up and interpret database performance monitoring to proactively identify potential issues
  • Analyze how application code and ORM layers impact database performance
  • Support SQL Server environments hosted both in Azure and on-premises/customer-hosted infrastructure
  • Work closely with an international development team on database changes and release readiness
  • Use AI tools to support query analysis, schema review, migration script review and performance diagnostics

This is how we organize our work

This is how we work

at the client's site
Company

What we offer

  • Employment stability – long-term projects, cooperation with leading companies, and opportunities to develop across various areas of the IT industry.
  • Flexible forms of cooperation – B2B contract, employment contract, or civil law contract.
  • Benefits – Medicover healthcare package including dental care, FitProfit sports card, and English language classes.
  • F45 gym training – available at our office on Puławska Street, with sessions led by professional trainers.
  • Internal referral programme.
  • Funding for IT certifications.
  • Depending on the project, we work remotely, in a hybrid model, or onsite.
  • Company events and team-building trips – we build strong relationships within the team also outside the office.
  • We enjoy helping others – we support charity initiatives such as Szlachetna Paczka, and through our #PomagamyNexio initiative, we get involved where we can make a real difference.

Benefits

  • sharing the costs of sports activities
  • private medical care
  • sharing the costs of foreign language classes
  • sharing the costs of professional training & courses
  • flexible working time
  • fruits
  • integration events
  • dental care
  • coffee / tea
  • employee referral program
  • charity initiatives
  • angielski

Nexio Management Sp. z o.o.

Nexio Management is a team of approximately 550 IT consultants who have been delivering advanced technology solutions for clients in Poland and internationally for over 20 years. We are a community of experienced professionals who take an active, hands-on approach to every project, working closely with our clients to deliver real business value.
We specialize in the design, development, and maintenance of enterprise systems and applications, as well as IT consulting services. We believe that the best solutions are born from innovation and experimentation. That is why we have established our own R&D Center, home to NexioBot - our AI-powered mobile assistant robot designed to enhance communication through artificial intelligence.
We deliver projects through a variety of engagement models, including Managed Services, Fixed Price, and Team Augmentation (Scale-Up). Our clients represent a wide range of industries and rely on us to provide top-tier expertise, technical excellence, and long-term partnership.

This is how we work

Senior SQL Server DBA / Database Engineer (k/m/n)
I apply to:
Nexio Management Sp. z o.o.
Warszawa, Masovian
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