Senior Database Engineer
SourceFirst International s.r.o.
Bratislava, Slovakia (Job with occasional home office)
full-time
By agreement
3 800 - 5 000 EUR/monthAttractive benefit system of a client.
Information about the position
Job description, responsibilities and duties
We’re looking for an expert database engineer with a strong focus on relational databases, especially PostgreSQL and Oracle. In this role, you will work at the intersection of code, data, and collaboration, driving high-impact backend development and data integration efforts across a complex application landscape.
You’ll be instrumental in maintaining and evolving large-scale Java / Spring Boot backends, integrating deeply with PostgreSQL, Oracle and other data technologies. You’ll help shape modern, data-driven architectures and guide teams toward best practices in relational data modeling, query optimization, and data access layer design.
Responsibilities are:
-Design, implement, and optimize database structures with a focus on PostgreSQL and Oracle.
-Collaborate with development teams to integrate efficient and scalable data access layers into Java / Spring Boot services.
-Modernize legacy database interactions, ensuring high performance, security, and maintainability.
-Lead and mentor teams in writing clean, effective SQL.
-Troubleshoot complex data-related issues, from schema design to query tuning.
-Depending on your knowhow in Java backend technologies and frameworks, you also participate in code reviews, especially on data-heavy components, and provide guidance on best practices for working with relational databases.
Employee perks, benefits
- kindergarten - available in our building
- yearly salary re-evaluation
- hybrid type of home-office
- flexible working time
- sick days
- MultiSport card
- mental & medical health support
- public transport donation
Information about the selection process
We have many open positions for IT specialists, not only in Slovakia and Czech Republic, but also on other foreign projects.
Expected date of completion of the selection process
Company on whose behalf the position is being filled
Our client is one of the leaders providing global technology services.
Requirements for the employee
Candidates with education suit the position
Secondary with school-leaving examination
University education (Bachelor's degree)
University education (Master's degree)
Postgraduate (Doctorate)
Personality requirements and skills
Nobody is perfect and meets 100% of requirements. If you, however, meet some of the criteria below and are genuinely curious about the world of software development, we will be happy to meet you.
Some of the requirements are:
-Strong hands-on experience with PostgreSQL and Oracle and relational database design.
-Deep understanding of SQL performance tuning, indexing strategies, and normalization.
-You’re data-driven and detail-oriented, with a passion for solving complex database and backend challenges.
-You enjoy collaborating across teams, sharing knowledge, and promoting clean, sustainable code and data practices.
-You bring structure to problems, communicate clearly, and thrive in a fast-paced, agile environment.
Advertiser
Brief description of the company
SourceFirst International s.r.o. portfolio of services:
Technology Recruitment across Europe
Recruitment Outsourcing
Sourcing and Recruitment of permanent, contract and interim talent
Strategy CVs Sourcing
Executive Search