Senior Software Engineer

UrbanJobb; Sundsvalls kommun; On-site; SEK 600,000 - 800,000; Full time

Job summary

A reputable tech-focused bank in Sundsvall is seeking a Senior Software Engineer. You will drive engineering excellence by defining standards, delivering high-impact features, and mentoring colleagues. The role requires senior-level expertise in C#/.NET, event-driven architecture, and Azure. Fluency in both Swedish and English is essential. Join a high-performing team committed to innovation and quality as you contribute to modernising financial services through technology.

Qualifications

• Depth in programming, frameworks, and system design in C#/.NET.
• Expertise in event-driven architecture and Azure.
• Proven track record of delivering high-quality, large-scale software systems.

Responsibilities

• Define technical standards, system architecture, and design principles.
• Implement complex functionality meeting performance and security requirements.
• Anticipate and resolve architectural bottlenecks.

Skills

C#/.NET

Event-Driven Architecture (EDA)

Azure

Mentoring

Performance Optimization

Security

Job description

As a Senior Software Engineer at Nordiska, you’ll help shape system architecture, deliver complex features, and write high‑quality code - building embedded finance where banking meets tech. As part of our AI‑first strategy, we aim for 80% of all code to be written by agentic AI systems by the end of 2026, empowering engineers to focus on architecture, quality, and innovation.

To meet future demands, we continuously scale our modern technology platform, expand partner integrations, and accelerate product innovation to help shape the future of financial services.

Bank at core, innovation at heart

Nordiska is a bank offering a wide range of financial services, allowing us to tailor solutions to each customer while simultaneously enabling them to gain access to advanced financial technology. Part of our offering is our Embedded platform, enabling enterprise partners across Europe to seamlessly integrate financial services into their product offerings. We also provide corporate and real‑estate financing, as well as sustainable savings with a government‑backed deposit guarantee.

Working at Nordiska

Since our founding, we have been dedicated to making a difference and driving innovation. We work towards an ambitious vision and goals, backed up by our history of successfully delivering high‑quality results and sustainable growth.

Historically and going forward, the people working at Nordiska are what enables our success. We balance our professional environment with an entrepreneurial mindset, always acting with honesty and responsibility, to build long‑term trust among customers, partners and employees.

About the Role

As a Senior Software Engineer, you will primarily work with Nordiska Embedded at our Sundsvall office. We combine the best of two worlds – at our core, we’re a stable, regulated bank paired with a product‑tech mentality that thrives on agility, curiosity, and innovation. As Nordiska expands into new markets, onboards new customers, and builds new products and features, you work closely with the Tech Lead and Lead Engineer to set technical standards and ensure that the team’s output is robust, scalable, and secure. You’ll be an important part of modernising systems, reducing technical debt, and contributing to system architecture, complex feature development, and code quality.

In addition to your technical work, you’ll mentor engineering colleagues, foster a culture of continuous improvement, and contribute to a high‑performing team as we grow.

In the role, you will:

• Drive engineering excellence by defining technical standards, system architecture, design principles, and contributing to the long‑term technology strategy.
• Deliver high‑impact features – implementing complex functionality that meets stringent performance, reliability, and security requirements.
• Drive initiatives that improve performance, enhance scalability, and reduce technical debt.
• Anticipate and resolve architectural bottlenecks, proactively preventing issues.
• Ensure technical excellence through clean code, testing and observability, structured code reviews, and consistent application of best practices, fostering a culture of continuous learning.
• Cross‑functional collaboration with Product and Engineering leadership to ensure technical execution supports strategic objectives.

Your Professional Profile

As a true self‑leader, you take ownership and operate effectively in a fast‑paced, high‑accountability environment.

You communicate clearly, collaborate seamlessly across functions, and navigate confidently in a regulated context.

You’ll contribute to a high‑performing and humble team, bringing strong analytical skills and a proactive, solution‑driven approach.

We believe that you have:

• Senior‑level depth in programming, frameworks, and system design in C#/.NET.
• Expertise in event‑driven architecture (EDA) and Azure. A strong interest in AI technologies is considered an advantage.
• Hands‑on expertise with architectural patterns, scaling strategies, performance optimisation, security, scalability and resilience.
• Demonstrated capability to mentor others and lead by example.
• Proven track record of delivering high‑quality, large‑scale software systems.
• Fluency in Swedish and English, both spoken and written.