Middle Data Engineer

Posted Yesterday
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Warsaw, Warszawa, Mazowieckie
In-Office
Mid level
Mobile • Software
The Role
Manage and optimize the database layer, improve SQL performance, and engage with customers to troubleshoot data issues. Requires strong expertise in Microsoft SQL Server and TypeScript.
Summary Generated by Built In
Why Join Exadel

We’re an AI-first global tech company with 25+ years of engineering leadership, 2,000+ team members, and 500+ active projects powering Fortune 500 clients, including HBO, Microsoft, Google, and Starbucks.

From AI platforms to digital transformation, we partner with enterprise leaders to build what’s next.

What powers it all? Our people are ambitious, collaborative, and constantly evolving.

About the Client

The Client is a custom software development company committed to providing quality IT solutions that facilitate and add value to clients’ businesses. They offer a full spectrum of custom software services, including web and mobile application development.

What You’ll Do  
  • Own the comprehensive management of the database layer, including maintenance, configuration, and optimization
  • Diagnose and resolve complex SQL performance bottlenecks
  • Manage and evolve the TypeScript data access layer connecting core SQL logic with backend services
  • Ensure efficient, reliable, and scalable data flow across the system
  • Engage directly with customers in live technical sessions to troubleshoot data-specific issues
  • Continuously optimize Microsoft SQL Server to support large-scale, identity-based data analysis
What You Bring  
  • SQL Server Expertise: Deep, expert-level knowledge of Microsoft SQL Server, including performance tuning, indexing strategies, and complex stored procedure development
  • TypeScript Proficiency: Strong software engineering skills in TypeScript, specifically for developing and maintaining data access layers (ORMs/Query Builders)
  • Data Performance Optimization: Proven ability to analyze and optimize database performance in high-load, production environments
  • Customer-Facing Troubleshooting: Experience in leading technical deep-dives with customers to diagnose data-related challenges in real-time
  • Database Architecture: Understanding of database schema design, migration strategies, and data integrity principles
  • 4+ years of experience as a Data Engineer, Database Developer, or Backend Engineer with a strong focus on SQL
  • Exceptional analytical skills with a "data-first" approach to problem-solving
  • Full English Proficiency: Essential for leading live technical sessions with international enterprise clients and internal teams
  • Experience with large-scale identity data (Active Directory/Entra ID) – A major advantage
English level

Upper-Intermediate

Legal & Hiring Information
  • Exadel is proud to be an Equal Opportunity Employer committed to inclusion across minority, gender identity, sexual orientation, disability, age, and more
  • Reasonable accommodations are available to enable individuals with disabilities to perform essential functions
  • Please note: this job description is not exhaustive. Duties and responsibilities may evolve based on business needs
Your Benefits at Exadel 

Exadel benefits vary by location and contract type. Your recruiter will fill you in on the details.

  • International projects
  • In-office, hybrid, or remote flexibility
  • Medical healthcare
  • Recognition program
  • Ongoing learning & reimbursement 
  • Well-being program
  • Team events & local benefits 
  • Sports compensation 
  • Referral bonuses 
  • Top-tier equipment provision
Exadel Culture

We lead with trust, respect, and purpose. We believe in open dialogue, creative freedom, and mentorship that helps you grow, lead, and make a real difference. Ours is a culture where ideas are challenged, voices are heard, and your impact matters.

Top Skills

Microsoft Sql Server
Typescript
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The Company
HQ: Walnut Creek, CA
1,549 Employees
Year Founded: 1998

What We Do

For more than 20 years, Exadel has been delivering Digital Transformation services, enterprise and custom software solutions for Fortune 500 clients, including HPE, Deloitte, Home Depot and McKesson. With 20+ locations and delivery centers across the US and Europe, Exadel solves the most complex engineering problems using Agile methodologies, offering a scalable and skilled mix of multi-shore resources at the industry's most competitive price. Exadel’s digital transformation solutions and services help chart new strategies that are built upon creative thinking, cutting-edge design, and technical innovation, designed for the growing digital landscape of business.

Enterprise Services
- Digital Transformation Experts
- Developing mission-critical software and mobile applications
- Advising companies on how best to leverage open source technology
- Helping companies plan and implement migrations to better technology stacks
- Providing QA, automation, and testing services for application development
- Supporting and maintaining applications and systems for companies
- Providing on-line training and mentoring to companies
- Assisting companies in evaluating their current enterprise software architecture and planning for improvements or new systems.

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