Senior Backend Engineer – Database & Data Platforms

Link Group

Warszawa, Wrocław, Kraków

On-site

PLN 180,000 - 240,000

Full time

5 days ago
Be an early applicant
Application generator

A complete application in a minute — tailored resume and cover letter, ready to send.

Get past ATS filters

Job summary

Link Group is seeking a Senior Back-end Developer specializing in database technologies. You will lead design, development, and optimization of data-heavy backend systems, ensuring robust data modelling, efficient queries, and scalable storage strategies.

Collaboration with cross-functional teams will be essential to deliver high-performance data solutions. The role emphasizes independent, senior-level engineering work with strong focus on reliability, performance, and clear communication within

Qualifications

  • Minimum 6 years of professional backend/database experience.
  • Strong hands-on experience with MongoDB, PostgreSQL, Virtuoso Triple Store and OpenSearch.
  • Experience designing, developing, optimizing and maintaining database solutions.
  • Solid data modeling, querying, indexing and performance optimization skills.
  • Ability to troubleshoot complex database issues and work independently in a senior role.
  • Excellent communication and collaboration skills.

Responsibilities

  • Design, implement and optimize scalable database solutions.
  • Collaborate with engineering teams to integrate data stores.
  • Troubleshoot and resolve database performance issues.
  • Mentor junior colleagues and contribute to architectural decisions.

Skills

MongoDB
PostgreSQL
Virtuoso
OpenSearch
Data modelling
Querying
Indexing
Performance optimization
Troubleshooting
Independent work
Communication

Job description

Link Group is seeking a Senior Back-end Developer specializing in database technologies. You will lead design, development, and optimization of data-heavy backend systems, ensuring robust data modelling, efficient queries, and scalable storage strategies.

Collaboration with cross-functional teams will be essential to deliver high-performance data solutions. The role emphasizes independent, senior-level engineering work with strong focus on reliability, performance, and clear communication within

Get your free, confidential resume review.
or drag and drop your file here.
Similar jobs

Similar jobs worth comparing

Senior Back-end Developer - Database
Senior Back-end Developer - Database

Link Group • Warszawa, Wrocław, Kraków

On-site
PLN 180,000 - 240,000
Senior T-SQL & Shells Engineer
Senior T-SQL & Shells Engineer

Link Group • Warszawa

On-site
PLN 150,000 - 200,000
Senior Backend Engineer: Security & Kubernetes
Senior Backend Engineer: Security & Kubernetes

Link Group • Warszawa, Wrocław, Kraków

On-site
PLN 180,000 - 240,000
Senior Database Engineer
Senior Database Engineer

Backbase • Kraków

On-site
PLN 100,000 - 130,000
Senior Database Engineer: Real-Time, High-Scale Cloud | Remote
Senior Database Engineer: Real-Time, High-Scale Cloud | Remote

dotLinkers Sp. z o.o. • Kraków

Hybrid
PLN 190,000 - 300,000
Fully remote initially
Hybrid work model in Kraków
International team
+1
Senior Data Platform Engineer
Senior Data Platform Engineer

S&P Global, Inc. • Gdańsk

On-site
PLN 180,000 - 280,000
Health care coverage
Generous time off
Continuous learning
+3
Remote Staff Engineer - Data Platform & Cloud
Remote Staff Engineer - Data Platform & Cloud

Talanto • Poland

Remote
PLN 246,000 - 379,000
Premium medical and dental care
Life insurance
Employee Referral Program
+4
Staff Backend Engineer - Scale & Reliability Architect
Staff Backend Engineer - Scale & Reliability Architect

Trading 212 • Poland

On-site
PLN 240,000 - 360,000
Senior Database Engineer
Senior Database Engineer

Motive Partners • Kraków

Hybrid
PLN 300,000 - 377,000
Senior Data Platform Engineer — Cloud, Scale & AI-Driven
Senior Data Platform Engineer — Cloud, Scale & AI-Driven

Cerebras • Warszawa

On-site
PLN 180,000 - 300,000
Premium medical and dental care
Life insurance
Flex Benefits
+7