Senior Software Architect, B2C Online Platform
About the position
We are looking for a Senior Software Architect to shape and evolve DNA’s B2C online platform, powering eCommerce and self-service. The platform is evolving toward a more lean and clearly structured deployment architecture. This requires architectural decisions that actively reduce complexity while ensuring high availability, strong security, and safe independent deployments. The environment is built on a cloud‑native microservice architecture, integrated with core DNA services.
We are strengthening in‑house architectural ownership of this platform, making the role critical to the future of DNA’s digital customer experience. You will combine architectural leadership with strong communication, taking clear architectural decisions when needed, ensuring they are understood, documented, and followed, while staying open to input and learning.
You will also contribute to DNA’s shift toward AI‑enabled engineering and agentic development, helping teams adopt agentic practices in a scalable and controlled way through shared guidance, repeatable workflows, and architectural guardrails. At the same time, you will ensure that production changes meet high standards for security, quality, and human oversight.
The position is located in Helsinki, but our flexible work concept allows you to work remotely from anywhere in Finland. To keep our team spirit strong, we enjoy getting together in person every now and then! We organize regular planning days in Helsinki and value the energy that comes from working side-by-side occasionally.
What you’ll do
Define and evolve the target architecture for a large-scale B2C online platform with a focus on scalability, reliability, maintainability, security, and cost efficiency in collaboration with enterprise architects.
Lead architectural work across online microservices and APIs, ensuring clear boundaries, consistent patterns, and a strong engineering baseline.
Embed security-by-design into architecture and development by defining and promoting secure architectural principles, integration patterns, and development guidelines to protect customer and business‑critical data.
Facilitate trade-off discussions and make decisions when opinions differ, balancing business needs, technical risks, and long-term sustainability.
Act as a key technical partner for leadership: support with complex technical topics, security and technology risk management, and architectural prioritization.
Strengthen engineering practices that enable speed with safety, including testable architecture, CI/CD thinking, and automated quality and security checks.
Support teams in responsibly integrating AI and agentic approaches into architecture and ways of working, ensuring governance, consistency, and production readiness.
What we’re looking for
Solid experience as a Software Architect / Lead Engineer in complex, business-critical systems.
Strong understanding of microservice architectures and integration design (API-first thinking).
Cloud-native mindset and production orientation, including observability, reliability, and security-by-design.
Excellent communication skills: you can explain architecture clearly to both engineers and business stakeholders.
Confidence to drive alignment and decisions under uncertainty.
Growth-mindset and strong understanding of agentic development and AI‑enabled engineering, and ability to define architectural guardrails for scalable, secure, and sustainable platforms.
This position requires an approved statement of security clearance.
What we offer
A senior role with real architectural influence on DNA’s digital customer experience.
A chance to shape modern microservices architecture, secure software platforms, and agentic engineering ways of working.
Flexible working (incl. remote work within Finland) and a professional, collaborative culture.
JOIN US – we are already waiting for you!
Please apply via our recruitment system by May 12. You can submit your application in Finnish or English.
If you have any questions regarding the role or DNA, please contact Head of B2C Digital Channels, Maisa Lehtovuori, Tuesday 28.4. 10-11 or Wednesday 29.4. 13-14, phone +358440447692 / maijakaisa.lehtovuori@dna.fi.
About DNA:
DNA is one of the leading telecommunications companies in Finland. Our purpose is to connect you to what matters most. We offer connections, services and devices for homes and workplaces, contributing to the digitalisation of society. Already for years, DNA customers have been among the world leaders in mobile data usage. DNA has about 3.7 million subscriptions in its fixed and mobile communications networks. The company has been awarded numerous times as an excellent employer and family-friendly workplace. In 2025, our total revenue was EUR 1 128 million and we employ about 1,600 people around Finland. DNA is a part of Telenor Group, a leading telecommunications company across the Nordics. More information: www.dna.fi, Facebook @DNA.fi and LinkedIn @DNA-Oyj.
DNA's award-winning work culture is based on freedom and is built on trust. With us you have the freedom to shine as you are and achieve great things together with others. We appreciate employees from different kind of backgrounds regardless of age, gender, appearance, heritage, who they love or how they see the world.
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