Senior Software Engineer - Collateral

Nordea; Województwo mazowieckie; Hybrid; PLN 240,000 - 360,000; Full time

Benefits offered by this job

Hybrid working model

Job summary

Nordea Group Technology in Warszawa is seeking a Senior Software Engineer to join the Collateral team building integrations for the FIS Collateral Management vendor product. You will own design and implementation across the full stack, collaborating with Product Owners and business stakeholders.

You will drive Kubernetes migration and cloud-native transformation, apply AI-assisted development with Copilot, review code daily, and mentor peers in a fast-paced, hybrid environment that values

Qualifications

• 5+ years of experience as a Senior Software Engineer
• Expert Java, Spring Boot
• Kafka, JMS, or equivalent event-driven messaging
• REST API design and implementation
• Oracle or other RDBMS (query performance)
• Clean Code, SOLID, design patterns, testable architecture
• Docker and containerization
• CI/CD pipelines (built and maintained)
• AI-assisted development (Copilot, Cursor, Claude, or equivalent)
• Good English, both written and spoken

Responsibilities

• Take requirements directly from the Product Owner, challenge them, refine them, and turn them into working software
• Make architectural decisions that shape how the system evolves — not just today, but for the next 3 years
• Review code daily — raise the bar for the entire team, not just your own output
• Drive the Kubernetes migration and cloud-native transformation of existing services
• Question, simplify, eliminate, automate — if a process shouldn’t exist, don’t optimise it. If it should, make it effortless.
• Build and refine AI/agentic workflows that multiply the team’s output
• Mentor and pair-program with other developers — make the team stronger, not just yourself
• Communicate directly with business stakeholders — translate complexity into clarity
• Own production incidents when they happen — diagnose, fix, prevent recurrence

Skills

Senior Software Engineer

Java

Spring Boot

Kafka

REST API design

Oracle

Clean Code

Docker

CI/CD

AI-assisted development

English communication

Kubernetes

Cloud-native patterns

Infrastructure as Code

Observability tooling

Banking/Finance domain

Atlassian stack

Job description

Welcome to Group Technology, where we pride ourselves on engineering solutions and driving Nordea’s transformation by providing a holistic technological view and structured understanding of the bank and its environment to enable the Customer Vision and Business Strategy. In Nordea, we're harnessing the power of technology to reinvent the future of banking. A tech revolution is underway – and you can make an impact. Working in international team in an inspiring working environment, you'll have lots of opportunities to expand your skills and advance your career. Nordea is a place where traditions meet tomorrow. We’re not just a bank; we’re a tech employer on a mission to evolve finance securely and responsibly. Together, we impact millions of people’s daily lives by ensuring they can access our solutions anytime, anywhere, while safeguarding their personal data and wealth. Join us in making an impact on the banking industry.

About Our Team

We are part of the Middle Office Service Domain, which is a crucial part of Investment Banking area of Nordea, responsible for market data, valuations, P&L and collateral. In our Valuation and Collateral product, we have 3 scrum teams, each focused on a specific product area (Prices, Valuations, Collateral). We are looking for an Engineer in Collateral team.

This role in Warszawa, Poland.

About This Opportunity

The Collateral team is responsible for building integrations for connecting FIS Collateral Management vendor product into Nordea infrastructure.

Our microservices are mostly event-driven, built using Java with Project Reactor. Our current infrastructure is Windows servers (due to alignment with vendor system), but we plan to migrate to Kubernetes.

What Makes This Different

You’ll join a focused team where senior engineers drive technical direction. Your decisions will shape architecture, tooling, and delivery. You’ll work with AI as a core part of the engineering practice, not a buzzword and you’ll see the impact of your work immediately—this is a team where leadership is shown through execution.

What You’ll Be Doing

You own the full picture. From understanding the business requirement to designing the solution, building it, testing it, deploying it, and making sure it runs in production.

Activities may involve:

• Take requirements directly from the Product Owner, challenge them, refine them, and turn them into working software
• Make architectural decisions that shape how the system evolves — not just today, but for the next 3 years
• Review code daily — raise the bar for the entire team, not just your own output
• Drive the Kubernetes migration and cloud-native transformation of existing services
• Question, simplify, eliminate, automate — if a process shouldn’t exist, don’t optimise it. If it should, make it effortless.
• Build and refine AI/agentic workflows that multiply the team’s output
• Mentor and pair-program with other developers — make the team stronger, not just yourself
• Communicate directly with business stakeholders — translate complexity into clarity
• Own production incidents when they happen — diagnose, fix, prevent recurrence

How We Work With AI

AI isn’t a nice‑to‑have here. It’s how we work. We use GitHub Copilot with agentic capabilities daily — not just for autocomplete, but for real development workflows. We treat AI output like a pull request from a capable but fallible teammate — you review it critically and take responsibility for what is shipped.

You should already have experience working with AI-assisted development and a clear opinion on where it excels and where it fails. If you’re still waiting for someone to tell you how to use AI — this isn’t the role for you.

Who You Are

• You’re solution oriented. When you see a problem, your instinct is to fix it — not to document it, elevate it, or wait for someone else to notice. You don’t need permission to improve things.
• You’re proactive. You see issues forming before they become incidents. You propose improvements nobody asked for. You speak up in meetings when something doesn’t make sense — even when it’s uncomfortable.
• You communicate with clarity. You can explain a complex system to a business stakeholder in two minutes. You write documentation that actually helps. Your Jira tickets tell a complete story.
• You’re resilient. Ambiguity doesn’t paralyze you. Pressure doesn’t make you cut corners. When things break at an inconvenient time, you stay calm, diagnose, and fix.
• You take ownership. If it’s in your scope, it’s your responsibility until it’s done — from the first conversation with business to the monitoring dashboard confirming it works in production.

Don’t apply if:

• You wait to be told what to do. We don’t have time to manage you — we need you to manage yourself.
• You think AI is a fad or a threat. It’s neither. It’s the tool that multiplies your impact. If you’re not using it, you’re falling behind.
• You only want to write code. This role requires talking to people, understanding business, and making decisions — not just implementing tickets.
• You want a stable, unchanging environment. We’re transforming everything. If that stresses you out, this isn’t the place.
• You throw work over the wall. "I wrote the code, deployment is ops' problem" — that mindset doesn’t survive here.

Your background and skills include:

• 5+ years of experience as a Senior Software Engineer
• Expert Java, Spring Boot
• Kafka, JMS, or equivalent event-driven messaging
• REST API design and implementation
• Oracle or other RDBMS (query performance, not just ORM)
• Clean Code, SOLID, design patterns, testable architecture
• Docker and containerization
• CI/CD pipelines (built and maintained, not just triggered)
• AI-assisted development (Copilot, Cursor, Claude, or equivalent)
• Good English, both written and spoken

It would be ideal if you also have…

• Kubernetes and cloud-native patterns
• Infrastructure as Code (Ansible, Terraform, or similar)
• Observability tooling (Grafana, InfluxDB, Splunk)
• Banking or finance domain experience
• Atlassian stack (Jira, Bamboo, Confluence, Bitbucket)

What We Offer

Collaboration. Ownership. Passion. Courage. These are the values that guide us in how we work and how we make decisions – and that we imagine you share with us.

People are driven by many different factors. For some, it’s to take their career to the next level. For others, it’s to break new ground within their area of expertise – in other words, with us, you will always move forward.

A culture that fosters performance and growth in one of the largest Nordic banks, offering various opportunities to evolve, develop and learn from brilliant colleagues with diverse backgrounds in a vibrant working environment.

Hybrid working model – we believe in the value of bringing people together and at the same time we embrace the freedom of flexibility.

Diversity and inclusion are a natural part of our daily work. We know that an inclusive workplace is a sustainable one. We genuinely believe that our diverse backgrounds, experiences, characteristics and traits make us stronger together. Every day we strive to find new ways to improve diversity and inclusion within our community e.g. we have signed the European Diversity Charters in the countries where we operate to show our commitment and engage with others to continue learning and improving.

We enable dreams and aspirations for a greater good.

We build relationships. We add a personal touch to everything we do – when advising our customers, collaborating with colleagues, and meeting our potential candidates.

We learn and develop. We take pride in being experts and thinking ahead. We use our expertise to meet our customers’ needs, from the simplest to the most complex. We bring a growth mindset to our work that enables us to focus on a broader perspective in our daily challenges.

We lead change. We are responsible and aware of the impact of our decisions, both for our customers and for our local and global communities. Mindful of our responsibility towards current and future generations, we have made sustainability an integrated part of our business strategy.

We are Nordea. We have a 200-year history of supporting and growing the Nordic economies and our values are deeply rooted in these open, progressive and collaborative societies. As one of the biggest employers in the Nordics, Poland and Estonia, you have excellent opportunities to evolve, develop and move forward with us.

Studies show that members of underrepresented communities don’t apply for jobs unless they tick all the qualification boxes. If this is part of why you hesitate to apply, we would like you to reconsider and give it a chance. Maybe your profile fits our needs much better than you think.