Senior ETL Developer ETL, SQL, Python, Kafka Warsaw, Gdańsk

Diverse CG Sp. z o.o. Sp.k.; Town of Poland (NY); On-site; USD 90,000 - 120,000; Full time

Benefits offered by this job

Private medical care

Co-financing for the sports card

Constant support of dedicated consultant

Job summary

Diverse CG Sp. z o.o. Sp.k. is looking for a Senior ETL Developer in New York to develop reliable ETL solutions. You will work closely with business partners and architects to ensure timely delivery and optimize workflows through innovative approaches.

The ideal candidate has extensive ETL experience, strong coding skills in SQL and Python, and provides technical leadership. Benefits include private medical care and sports card co-financing.

Qualifications

• Fluent English (spoken and written).
• Strong ability to work effectively with diverse stakeholders.
• Willingness to learn data modelling.

Responsibilities

• Developing and engineering ETL solutions with reliability.
• Managing end-to-end solution design and delivery.
• Supporting technical leadership and code quality practices.

Skills

Hands-on coding skills

Architectural mindset

Collaboration skills

Experience with AI tools

Strong communication

Solid experience with ETL processes

Relational databases

SQL

Python

Event-driven architectures

REST APIs

Spring Boot or similar frameworks

Independent work ethic

Organizational skills

Tools

Kafka

Java

Job description

Senior ETL Developer

Responsibilities:

• Developing and engineering ETL solution with high standard of reliability and stability
• Partnering with business partners, data users and solution architects while anticipating and addressing business demands
• Managing end‑to‑end solution design and timely, high‑quality delivery
• Optimizing workflows with AI tools to increase efficiency and maintainability of a solution delivered from business demand to working application
• Supporting the team with technical leadership, code quality practices, and modern engineering standards

Requirements:

• Ability to combine hands‑on coding skills with architectural mindset and design approach
• Strong collaboration skills with the ability to work effectively with diverse stakeholders
• Experience applying AI tools and practices to improve productivity and software quality
• Strong communication skills with proven experience in client‑facing roles
• Fluent English (spoken and written)
• Solid experience with ETL processes
• Strong knowledge of: Relational databases, SQL and Python
• Experience working with event‑driven architectures, including technologies such as Kafka
• Experience designing and implementing REST APIs
• Experience working with Spring Boot or similar frameworksPractical experience integrating AI tools into development workflows, including: requirement elicitation, documentation and refactoring
• Strong independent work ethic with high level of ownership
• Well‑developed organizational skills and ability to manage tasks effectively

Nice to have:

• Solid understanding of data warehouse principles
• Basic knowledge of data modelling or willingness to learn
• Knowledge of Java

Offer:

• Private medical care
• Co‑financing for the sports card
• Constant support of dedicated consultant