Dotnet Developer

ALTEN Polska; Warszawa; Hybrid; PLN 150,000 - 190,000; Full time

Benefits offered by this job

Medicover medical care

Medicover Benefits platform

Medicover Sport card

Referral Program

Layette for a newborn employee’s child

Group life insurance

B2B or Contract of mandate (UZ)

Job summary

ALTEN Polska is seeking a mid-level .NET/Java developer to join a Scrum team focused on modernizing payment systems for banking clients. The role requires strong C#/.NET, Java, Spring, and SQL skills, with experience in modern software practices.

You will work in a hybrid model in Poland (Warsaw/Cracow) and have the opportunity to grow within a European leader in engineering and IT consulting. English proficiency is essential, and banking sector experience is a plus.

Qualifications

• 3–5 years of experience in .NET development (Middle level).
• Proficiency in C#, .NET Core/.NET, SQL (MS SQL), Git, and Agile methodologies.
• Experience with Java (version 11+, preferably 21), Spring Boot 3.4+, Spring Data JPA, JUnit 5, Kafka, REST, Docker, Liquibase, Hibernate.
• Familiarity with Spring Cloud Stream and Avro (nice to have).
• Advanced English language skills.
• Experience in the banking sector (2-5 years) or 2-4 years outside the banking sector.

Responsibilities

• Collaborating within a Scrum team (8-10 members) to modernize payment systems.
• Implementing best practices in software development, including SOLID principles.
• Contributing to projects for key clients in the banking sector.

Skills

C#

NET Core/.NET

SQL

Git

Agile methodologies

Java

Spring Boot

Spring Data JPA

JUnit 5

Kafka

REST

Docker

Liquibase

Hibernate

Advanced English

Tools

Spring Cloud Stream

Avro

Job description

WE ARE A WORLD LEADER IN ENGINEERING AND IT SERVICES.

At ALTEN, we see our specialists as architects – today’s designers of tomorrow’s world.

As a leader in Engineering and IT Services, we support companies in their technological and sustainable transformation.

OVER 57,400 EMPLOYEES IN 30+ COUNTRIES, TO SUPPORT MORE THAN 6,500 CLIENTS WORLDWIDE.

We operate in all sectors:

Aeronautics, Space, Defence, Security & Naval

Automotive, Rail & Mobility

Energy & Environment

Life Sciences & Health

Telecoms, Banking, Finance & Insurance

Public Services & Government

We carry out complex and highly technical projects throughout the value chain of the most prestigious companies worldwide.

Our motto: Building Tomorrow’s World Today!

You will play a key role in:

• Collaborating within a Scrum team (8-10 members) to modernize payment systems
• Implementing best practices in software development, including SOLID principles
• Contributing to projects for key clients in the banking sector

The ideal candidate will have:

• 3-5 years of experience in .NET development (Middle level)
• Proficiency in C#, .NET Core/.NET, SQL (MS SQL), Git, and Agile methodologies
• Experience with Java (version 11+, preferably 21), Spring Boot 3.4+, Spring Data JPA, JUnit 5, Kafka, REST, Docker, Liquibase, Hibernate
• Familiarity with Spring Cloud Stream and Avro (nice to have)
• Advanced English language skills
• Experience in the banking sector (2-5 years) or 2-4 years outside the banking sector

WE OFFER:

• Location: Poland - Warsaw/Cracow
• Work model: Hybrid (6 days/month in the office)
• Stable and long-term cooperation
• Well-defined career path at the European leader in engineering & IT consulting
• Opportunity to relocate and work in different ALTEN Polska branches
• After project completion, opportunity to engage in a subsequent one within the company
• Introduction and cooperation with a dedicated Competences Manager

BENEFITS:

• Medicover medical care
• Medicover Benefits platform
• Medicover Sport card
• Referral Program
• Layette for a newborn employee’s child
• Group life insurance
• We also offer cooperation based on a B2B or Contract of mandate (UZ)

WE ALSO GUARANTEE:

• Access to professional certifications with our technology partners (e.g., Google, ISTQB)
• Access to relevant industry events
• Access to the Knowledge Sharing Program
• Access to the Referral Program

NOTICE:

We kindly inform you that we will contact the selected candidates.