Junior SQL Developer
~2 years experienceA Junior SQL Developer works under the guidance of more experienced colleagues and builds up their skills and knowledge of good practices.
See junior SQL Developer pay →IT salaries · Poland
SQL Developer salary in Poland 2026
SQL Developer is an IT professional working in the "SQL Developer" area. Pay depends mainly on seniority level, the technology stack used (e.g. MySQL, Oracle, PostgreSQL, SQL Server) and the form of employment (employment contract or B2B).
Updated monthly · last update: May 2026
How much does a SQL Developer earn by seniority?
SQL Developer pay rises with experience. Curioz tracks medians and pay ranges (employment contract and B2B) separately for each seniority level.
Regular (Mid) SQL Developer
~5 years experienceA Regular SQL Developer works independently, ensures the quality of delivered solutions and takes part in designing them.
See regular (mid) SQL Developer pay →Senior SQL Developer
~8 years experienceA Senior SQL Developer makes key technical decisions, owns the architecture and supports the team's growth.
See senior SQL Developer pay →Lead SQL Developer
~12 years experienceA Lead SQL Developer combines technical expertise with leading the team, standards and technology strategy.
See lead SQL Developer pay →SQL Developer salary by technology
The technology stack significantly affects SQL Developer salaries. Curioz tracks pay for the technologies most common in this role and their combinations:
Best-paying technologies for this role (by median salary, highest first):
- SQL Developer SQL Server
- SQL Developer Oracle
- SQL Developer MySQL
- SQL Developer PostgreSQL
SQL Developer SQL Server
See pay →A technology used in the SQL Developer role; the choice of stack affects pay ranges.
SQL Developer Oracle
See pay →A technology used in the SQL Developer role; the choice of stack affects pay ranges.
SQL Developer MySQL
See pay →A technology used in the SQL Developer role; the choice of stack affects pay ranges.
SQL Developer PostgreSQL
See pay →A technology used in the SQL Developer role; the choice of stack affects pay ranges.
Employment contract or B2B?
SQL Developer pay differs on an employment contract (monthly salary) versus a B2B contract (hourly rate). They differ in taxation, benefits and risk. Curioz shows both forms separately, so you can compare real rates for a given seniority and technology.
See the full pay data for SQL Developer
Medians, percentiles and ranges (employment contract and B2B) for every seniority level and technology, built from real data and updated monthly.
Check SQL Developer salaries →Frequently asked questions
How much does a SQL Developer earn in Poland?
SQL Developer pay in Poland depends on seniority (Junior, Regular, Senior, Lead), the technology stack and the form of employment. Up-to-date medians and pay ranges (employment contract and B2B) are available in the full Curioz report, updated monthly from real data.
Which technology pays best for a SQL Developer?
According to Curioz data, the highest median salaries for the SQL Developer role are reached with SQL Server. The full breakdown of rates by technology and seniority is available in the report.
Does a SQL Developer earn more on B2B or on an employment contract?
B2B (hourly) rates and employment-contract (monthly) salaries follow different tax and risk logic. Curioz shows both separately for each seniority level and technology.
Related roles
Source: Curioz, IT salary benchmarks built from real job offers, contracts and HRIS data. Data for May 2026.