Software Engineer, Java (Swift and/or Payments Experience) -Tieto Tech Consulting (m/f/d)

Tietoevry1

Warsaw, , Poland permanent

Posted: January 21, 2026

Required Skills

Job Description

Do you have a strong Java background, passion for problem-solving, and want to join one of the largest tech companies in the Nordics? Then this is the role for you!

We are looking for a Software Engineer who wants to be part of Tieto Tech Consulting. Tieto Tech Consulting works as a true partner, solving clients’ toughest technology challenges and delivering reliable outcomes that drive measurable results. By merging data, cloud, AI and design with deep industry expertise, we create impactful yet intuitive digital solutions that empower people and move businesses forward.

We are looking for talented Java Developers with experience in Swift and/or payment systems to join our growing team. Depending on your level of experience, you will contribute to the design, development, and optimization of scalable backend systems, mobile integrations, and secure payment solutions.

Key Responsibilities

Regular Java Developer

• Develop and maintain backend services using Java.
• Collaborate with mobile developers working in Swift.
• Assist in integrating payment gateways and APIs.
• Write clean, testable, and efficient code.
• Participate in code reviews and team meetings.

Senior Java Developer

• Lead development of complex backend modules and payment integrations.
• Mentor junior developers and support technical growth.
• Optimize performance and scalability of systems.
• Contribute to architectural decisions and technology selection.
• Ensure security and compliance in payment-related features.

Lead Java Developer

• Drive technical strategy and roadmap for backend and payment systems.
• Lead cross-functional teams across backend, mobile, and DevOps.
• Own end-to-end delivery of key projects.
• Collaborate with stakeholders to align technical solutions with business goals.
• Champion best practices in software engineering and agile methodologies.

Required Skills & Qualifications

• Strong proficiency in Java (Spring Boot, REST APIs, etc.).
• Experience with Swift (iOS development) or close collaboration with Swift teams.
• Hands-on experience with payment systems (e.g., Stripe, Adyen, PayPal, PSD2, SEPA, etc.).
• Familiarity with CI/CD pipelines and cloud platforms (AWS, GCP, or Azure).
• Good understanding of software design patterns and testing frameworks.

Nice to Have

• Experience with Kotlin or other JVM languages.
• Knowledge of security standards in financial applications.
• Exposure to microservices architecture.
• Previous experience in fintech or e-commerce domains.

What’s in it for you:

• Career development possibilities – we are engaged in our employee’s growth and are able to offer multiple career paths for you      
• Flexible working hours (start anywhere between 7 – 9 AM)
• Private medical care
• MyBenefit System
• Various other benefits – participation in an investment fund, group life insurance, recommended / awarded program and more! 

Information about the salary range and the criteria used to determine remuneration will be shared with candidates prior to the interview process and confirmed before an offer is made.

At Tieto, we believe in the power of diversity, equity, and inclusion. We encourage applicants of all backgrounds, genders (m/f/d), and walks of life to join our team, as we believe that this fosters an inspiring workplace and fuels innovation. Our commitment to openness, trust, and diversity is at the heart of our mission to create digital futures that benefit businesses, societies, and humanity.

Diversity, equity and inclusion (tietoevry.com)

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