Senior AI Applied Software Engineer

Backbase; Kraków; On-site; PLN 254,885 - 339,847; Full time

Benefits offered by this job

Competitive salary + annual bonus

€1,000 per year for professional development

Daily lunches

Community breakfasts

Full benefits package

Job summary

A leading financial technology firm based in Kraków is seeking an experienced AI Applied Engineer to design systems for digital engagement and customer experiences. The ideal candidate will have over 5 years of experience in complex Android-based products, with solid skills in Kotlin and Java. The role offers competitive salary, annual bonuses, and professional development funds. Work in a hybrid environment with daily office perks including lunches and community breakfasts.

Qualifications

• Expertise in designing complex Android-based products.
• Strong understanding of design patterns including Creational and Structural.
• Familiarity with CD/CI practices and knowledge of Data Structures and Algorithms.

Responsibilities

• Design game-changing systems for digital engagement and AI transformation.
• Develop LLM-based voice assistants and chat interfaces.
• Impact millions of users through architectural decisions.

Skills

5+ years of relevant working experience

Kotlin

Java

MVVM

Jetpack

Retrofit

OkHttp

Coroutines

Flow

Dependency injection

JUnit

RESTful APIs

Android Studio

Git

Job description

About the job

At Backbase, we don’t just deliver software – we redefine how people around the world manage their finances. We are building a new team in Kraków and are looking for an AI Applied Engineer for our Digital Engage and Customer Lifetime Orchestrator (CLO) domains.

What you'll do

You will design systems that are true game-changers.

Digital Engage: An intelligent campaign management platform (Push, WhatsApp, Email) featuring advanced segmentation.

CLO & AI Transformation: We leverage LLMs (OpenAI) and ML models for real-time offer personalization and content/image generation.

Conversational Banking & PFM Coach: We are building LLM-based voice assistants and chats that help customers plan financial goals and manage their accounts.

Global Scale: Over 100 financial institutions worldwide (USA, Europe, Asia, Africa). Your architectural decisions will impact millions of users.

Who you are

• You have 5+ years of relevant working experience working on complex Android-based products;
• You have solid experience of working with both Kotlin and Java.
• You have a deep comprehension of MVVM as well as strong understanding of design patterns (eg: Creational, Structural & Behavioural).
• You have experience of working with Jetpack, Retrofit or OkHttp, Coroutines, Flow, and Channels.
• You have a solid knowledge of Dependency injection design patterns.
• You have experience in writing unit tests with JUnit and you understand the testing pyramid.
• You are familiar with CD/CI practices and understand core concepts such as Data Structures, Algorithms and System Design.
• You have hands‑on experience with RESTful APIs.
• You have worked with Android Studio and Git in the past.

What we offer

• Competitive salary + annual bonus.
• €1,000 per year for your professional development.
• Kraków Office: Daily lunches, community breakfasts on Wednesdays, and hybrid work.
• Full benefits package (medical and more).

Equal Employment Opportunity

At Backbase, we recognise the importance of a diverse workforce and belonging. As part of our commitment to a more inclusive environment, we gather some demographic questions during the recruitment process.

Any demographic questions asked during the application process are voluntary and will not influence hiring decisions. Your responses are completely anonymous and solely used for internal diversity initiatives. Backbase is an equal opportunity employer and does not discriminate.

If you have any concerns or questions regarding the collection and use of demographic information, please feel free to contact our Human Resources department.