Inetum

Senior PostgreSQL / Data Engineer

Inetum  •  Warsaw, PL (Onsite)  •  1 hour ago
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Job Description

Company Description

Inetum Polska is part of the global Inetum Group and plays a key role in driving the digital transformation of businesses and public institutions. Operating in cities such as Warsaw, Poznan, Katowice, Lublin, Rzeszow, Lodz the company offers a wide range of IT services. Inetum Polska actively supports employee development by fully funding training, certifications, and participation in technology conferences. Additionally, the company is involved in local social initiatives, such as charitable projects and promoting an active lifestyle. It prides itself on fostering a diverse and inclusive work environment, ensuring equal opportunities for all.

Globally, Inetum operates in 19 countries and employs over 28,000 professionals. The company focuses on four key areas:

  • Consulting (Inetum Consulting): Strategic advisory services that help organizations define and implement innovative solutions.
  • Infrastructure and Application Management (Inetum Technologies): Designing and managing IT systems tailored to clients’ individual needs.
  • Software Implementation (Inetum Solutions): Deploying partner solutions from industry leaders like Microsoft, SAP, Salesforce, and ServiceNow.
  • Custom Software Development (Inetum Software): Creating unique software solutions to meet specific client needs.

With strategic partnerships with major technology giants, including Microsoft, SAP, Salesforce, and ServiceNow, Inetum delivers advanced technological solutions tailored to customer requirements. In 2023, Inetum reported revenues of €2.5 billion, underscoring its strong position in the digital services market.

Inetum distinguishes itself by offering a comprehensive range of benefits that meet the diverse needs of employees, providing flexibility, support and commitment. Here's what makes working at Inetum unique:

Attractive financial benefits:

  • A cafeteria system that allows employees to personalize benefits by choosing from a variety of options.
  • Generous referral bonuses, offering up to PLN6,000 for referring specialists.
  • Additional revenue sharing opportunities for initiating partnerships with new clients.

Professional development and team support:

  • Ongoing guidance from a dedicated Team Manager for each employee.
  • Tailored technical mentoring from an assigned technical leader, depending on individual expertise and project needs.

Community and Well-Being:

  • Dedicated team-building budget for online and on-site team events.
  • Opportunities to participate in charitable initiatives and local sports programs.
  • A supportive and inclusive work culture with an emphasis on diversity and mutual respect.

Job Description

We are looking for an experienced Senior PostgreSQL / Data Engineer to join a team building a high-performance, enterprise-grade data platform for the financial markets / FX domain.

This is a great opportunity for someone who enjoys working with large-scale data, complex PostgreSQL environments and near real-time processing. The platform handles approximately 40 million messages every day and provides up-to-date market data with refresh intervals as short as one second.

About the project

You will contribute to the design, development and optimization of a data platform responsible for:

  • Processing data for 46 currency pairs
  • Handling approximately 40 million messages per day
  • Processing data in near real-time
  • Managing large-scale data storage with 2-year retention
  • Integrating the platform with messaging systems such as RabbitMQ
  • Providing downstream teams with access to frequently refreshed data, with updates available every 1 second
  • Ensuring high availability, scalability and performance
  • Designing solutions capable of supporting large data volumes in a demanding financial environment

Qualifications

Must-have:

  • Strong commercial experience with PostgreSQL
  • Very good understanding of PostgreSQL architecture
  • Hands-on experience with table partitioning
  • Strong knowledge of database indexing and query optimization
  • Experience with B-Tree, Hash, GIN, GiST and/or BRIN indexes
  • Experience building or maintaining ETL processes
  • Experience working with large-scale / Big Data environments
  • Good knowledge of Linux
  • Experience working with performance-critical database environments
  • Fluent Polish and English

Nice to have:

  • Python
  • Kafka or RabbitMQ
  • Apache Airflow
  • CI/CD
  • Experience in the banking, financial services or FX domain
  • Experience with real-time or near real-time data processing

Additional Information

We hereby inform you that Inetum Polska sp. z o.o. has implemented an internal reporting (whistleblowing) procedure. The content of the procedure and the possibility to submit an internal report are available at:

https://inetum.whispli.com/speakup-locale=pl

Inetum

About Inetum

Inetum is a European leader in digital services. Inetum’s team of 27,000 consultants and specialists strive every day to make a digital impact for businesses, public sector entities and society. Inetum’s solutions aim at contributing to its clients’ performance and innovation as well as the common good.

Present in 19 countries with a dense network of sites, Inetum partners with major software publishers to meet the challenges of digital transformation with proximity and flexibility.

Driven by its ambition for growth and scale, Inetum generated sales of 2.4 billion euros in 2024.

🏅 Top Employer Europe 2025

Industry
IT & Software
Company Size
10,000+ employees
Headquarters
St.-Ouen, FR
Year Founded
1970
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