Senior Software Engineer - Tieto Banktech (m/f/d)

Tieto AB; Solna kommun; Hybrid; SEK 533,447 - 746,825; Full time

Benefits offered by this job

Flexible hybrid work model

Continuous learning opportunities

Open culture

Job summary

A leading technology company in Sweden is looking for a Senior Software Engineer to modernize and lead the development of its Equity post-trade platform. The role involves hands-on coding, mentoring a distributed team, and driving initiatives for legacy modernization. Applicants should have extensive experience with SQL, C#, .NET, and microservices architecture. This position offers a hybrid work model and focuses on continuous learning and improvement, welcoming diverse candidates to apply.

Qualifications

• Minimum 7 years of experience working on enterprise-level solutions.
• Proven experience in API design, microservices architecture, and domain-driven design.
• Demonstrated ability to drive technical transformation in legacy systems.

Responsibilities

• Architect, design, and implement robust solutions with a focus on RESTful APIs.
• Lead the refactoring of monolithic systems into modular components.
• Mentor and guide a distributed engineering team, promoting best practices.

Skills

Strong programming experience in SQL

C#

.NET

API design

Microservices architecture

Domain-driven design

CI/CD pipelines

Cloud platforms (Azure)

Git

DevOps practices

Education

Master's degree in Computer Science or a related field

Tools

Docker

Kubernetes

Job description

Job Description

Tieto Banktech powers some of the Nordics' most trusted banking systems with secure, reliable, and scalable solutions. Using automation, data, AI, and cloud, supported by hands‑on guidance, we help banks modernize their core, strengthen trust, and deliver greater impact across the banking experience.

We are seeking a Senior Software Engineer who is both hands‑on and strategic, to play a pivotal role in modernizing and leading the development of our Equity post‑trade platform. Working closely with the Product Manager, you will spend the majority of your time coding while shaping the architecture, mentoring the team, and driving the transition from legacy monolithic systems to modular, maintainable, and scalable solutions.

Key Responsibilities

• Hands‑on Development: Architect, design, and implement robust solutions, with a focus on RESTful APIs, microservices, and domain‑driven design.
• Legacy Modernization: Lead the refactoring of monolithic, DB‑driven systems, lifting business logic out of stored procedures into modular and maintainable components.
• Technical Leadership: Mentor and guide a distributed engineering team (Stockholm & Pune), promoting best practices, clean code, and technical excellence.
• Architecture Strategy: Collaborate with Product Manager to define and implement a technical roadmap aligned with business goals.
• Quality & Resilience: Drive initiatives to improve code quality, reliability, and maintainability in complex systems.
• Business Collaboration: Translate complex business workflows into technical solutions while balancing speed, scalability, and risk.

Required Skills & Competencies

• Strong programming experience in SQL, C#, and .NET, with a track record of hands‑on coding in production systems.
• Proven experience in API design, microservices architecture, and domain‑driven design.
• Track record of driving technical transformation in legacy systems.
• Demonstrated ability to modernize legacy, DB‑heavy systems, refactor monolithic codebases, and implement modular architectures.
• Experience leading and mentoring distributed teams, fostering knowledge sharing and technical growth.
• Familiarity with CI/CD pipelines, cloud platforms (Azure), Git, and DevOps practices.
• Excellent analytical, problem‑solving, and communication skills.

Preferred Qualifications

• Master's degree in Computer Science or a related field.
• Experience in Equity post‑trade or Capital Markets systems.
• Understanding of equity trading workflows and complex business scenarios.
• Minimum 7 years of experience working on enterprise‑level solutions.
• Hands‑on experience with containerization technologies (Docker/Kubernetes) and cloud‑native architectures.
• Experience working in a product organization with strong collaboration between tech and business.

We Offer

We offer a unique opportunity to shape the architecture of a critical banking platform, work on meaningful projects, and influence a growing, distributed team. You will have the freedom to be hands‑on while also driving modernization, supported by an open culture, flexible hybrid work model, and a focus on continuous learning.

Interested?

We look forward to receiving your application! Interviews will be held continuously, so we encourage you to apply today. For more information or questions, please contact our Talent Acquisition team at [e-mail].

We perform background checks on all final candidates.

Tieto declines calls from recruitment companies.

Additional Information

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)