Enterprise Architect, Business Transformation & Portfolio
- Application Deadline: Nov. 1, 2026
- Multiple locations
- On-site
Shape the future technology landscape at Tre
Tre is strengthening its architecture function to support major transformation initiatives across Sweden and Denmark.
We are modernising our technology landscape, investing in cloud, AI, digital capabilities and long-term architecture to support future growth.
As part of this journey, we're looking for an experienced Enterprise Architect, Business Transformation & Portfolio who wants to help shape the future of one of the Nordic region's leading telecom operators.
You will connect business strategy, technology direction and investment decisions, helping Tre make better choices about what to standardise, modernise, consolidate, buy, build or retire.
This is not an architecture approval role. Your purpose is to create clarity, make complex choices visible and help the organisation make better decisions earlier.
About our architecture community
At Tre, architecture is evolving into a stronger advisory capability with greater influence across business and technology.
Our architects help create clarity, guide strategic decisions and connect long-term direction with practical execution. As our Enterprise Architect, you will work closely with Domain Architects, Technology Architects, engineering teams and senior leaders to shape the future technology landscape across Sweden and Denmark.
This is an opportunity to join a growing architecture community with increasing impact on technology strategy, transformation initiatives and business outcomes.
About the role
As our Enterprise Architect, Business Transformation & Portfolio, you will help define Tre's long-term technology direction and ensure that strategic business goals translate into sustainable architecture decisions.
You will work across business domains, technology platforms and transformation initiatives, connecting business capabilities, systems and investments into a coherent enterprise landscape.
Working closely with business and technology leaders, Domain Architects, Technology Architects and portfolio stakeholders, you will help shape target architectures, strategic roadmaps and key investment decisions while establishing Tre's Enterprise Architecture capability.
Your focus extends beyond individual programmes. You will help drive portfolio coherence, simplification and long-term technology direction across Sweden and Denmark.
What you'll do
In this role, you will:
- Define and evolve the enterprise target architecture across Sweden and Denmark.
- Connect business capabilities, strategic objectives, applications, platforms and investment decisions.
- Drive portfolio-level decisions regarding standardisation, modernisation, sourcing and legacy retirement.
- Identify cross-domain dependencies, risks and decisions that require enterprise-wide alignment.
- Establish architecture direction for major transformation initiatives.
- Support leadership with recommendations and decision material for strategic business and technology investments.
- Develop enterprise roadmaps, transition plans, architecture principles and decision records.
You can look forward to:
- A central role in shaping the future technology landscape of a leading Nordic telecom operator.
- The opportunity to influence strategic investment, platform and transformation decisions.
- Working across Sweden and Denmark within a federated architecture model.
- Close collaboration with business leaders, architects and engineering teams.
- Major transformation initiatives involving customer experience, telecom platforms, cloud, AI and modern software delivery.
- Joining a growing architecture function with increasing influence on strategic business and technology decisions.
Mats describes himself as a leader:
"I believe great architects create clarity rather than complexity. We provide advisory and 'marriage counseling' for IT and Business. I value curiosity, accountability and collaboration, and I encourage people to challenge established ways of working when there is a better path forward. My role as a leader is to provide direction, remove obstacles and create an environment where people can have real impact and grow in their area of expertise."
Work with great people
Skills & Requirements
We believe you have
Must-have:
- Experience as an Enterprise Architect or in a comparable senior architecture role.
- Experience working across business strategy, technology strategy and complex transformation portfolios.
- Experience developing enterprise target states, roadmaps and transition architectures.
- Experience with application portfolio management, sourcing decisions and legacy-modernisation strategies.
- The ability to analyse complex dependencies and turn them into clear decision options.
- Experience influencing senior stakeholders without relying on formal line authority.
- Strong written and verbal communication skills in English.
Nice-to-have:
- Telecom, digital-service-provider or subscription-business experience.
- Experience with TM Forum frameworks, including ODA.
- Experience coordinating architecture across multiple countries.
- Knowledge of BSS/OSS transformation, cloud platforms or data architecture.
- TOGAF or another relevant architecture qualification.
Who you are
We're looking for someone who:
- Thinks strategically while remaining pragmatic.
- Creates clarity in complex environments.
- Builds strong relationships across business and technology.
- Is comfortable challenging established assumptions in a constructive way.
- Communicates complex topics in a way that enables decisions.
- Is curious, proactive and driven by continuous improvement.
You value collaboration, accountability and evidence over architecture for architecture's sake. You help organisations make better decisions rather than creating unnecessary complexity.
Location
The position can be based in Stockholm, Malmö, Gothenburg/Mölndal or Copenhagen.
We welcome applications from candidates based in either Sweden or Denmark.
Welcome with your application!
We are accepting applications through this advertisement and will hold interviews on an ongoing basis. A cover letter is not required, but we would like you to attach your CV and answer the questions included in the application.
We use assessments as part of our selection process to support an objective and fair recruitment process. The position may be filled before the application deadline. Background checks are carried out on the final candidate.
Great Place to Work
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Health care allowance, parental pay, pension & insurance according to collective agreements
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Dog zone & gym in the 3house
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Great discounts on bicycles, public transport, and electric cars
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Flexible holidays and six extra days off per year
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Subsidized lunch
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Generous bonus models or commissions
About the company
We are driven by constantly trying to improve things in new and different ways. Of course, we are at the forefront of developing future networks.
We see ourselves as a crucial part of Sweden's social structure because we know that reliable connectivity is a necessary foundation stone in today's digital world. That's why we see it as our job to keep our mobile network up and running year-round, 24/7, to ensure you can always count on being connected when you need it most.
Tre was born as a challenger and is an organization in constant motion. We strive to be at the forefront of everything we do. We are convinced that the people at Tre are decisive for our development.
No matter how you start your journey at Tre, there are endless opportunities to grow and develop with us.
WE THINK LIKE CHALLENGERS - In a constantly changing world, we stay curious and open minded. Born with a challenger mindset, we love pushing boundaries.
WE WORK LIKE CHAMPIONS - As true champions, we always do our best. We take ownership, set clear goals and stay focused. Together we´re on a winning streak.
WE ACT LIKE BUDDIES - Free to be ourselves, we treat each other with respect. Together we make a friendly bunch, and one tough force.
2003Tre was the first in Sweden to offer video calls and mobile video streaming. At this time, seeing the person you are calling in the eyes is a completely new experience.
2006Tre launches mobile broadband as the third operator in the world. Over the next five years, Tre will win awards for Sweden’s fastest mobile broadband.
2013Hallon, Tre’s sister company, was created with the idea of being a simple mobile operator, free from any unnecessary fuss.
2019It has been an eventful year! 3Världen was launched, allowing customers to surf in 80 countries at the same price as in Sweden. Then, 3Samla was introduced, enabling all customers to add more users to their subscription. Last but not least, Tre became the first in Sweden to launch a public 5G network.
2025Tele2 Arena has been renamed 3Arena. With our strong passion for innovation, connectivity, and experiences, we will contribute to developing the arena and the area.
Mats Andersson | Contact Person
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