Senior Software Engineer, Design Systems

Smartlyio; Helsinki; On-site; EUR 50,000 - 70,000; Full time

Benefits offered by this job

Healthcare packages

Paid holidays

Equity options

Flexible work model

Job summary

Smartlyio is seeking a Senior Software Engineer to enhance customer experiences across its platform. You will work on significant tasks including onboarding improvement, dashboards, and Design System adoption within a collaborative environment.

The ideal candidate has comprehensive expertise in React and TypeScript, is skilled in creating reusable UI components, and possesses a solid understanding of frontend architecture. Smartly offers a flexible hybrid workplace and a strong focus on wellbeing and professional growth.

Qualifications

• Strong experience building modern web applications using React and TypeScript.
• Experience designing and maintaining reusable UI component libraries or Design Systems.
• Ability to own features and technical initiatives from design through implementation.

Responsibilities

• Extend and maintain Smartly's Design System library.
• Develop customer-facing features that support onboarding and product adoption.
• Contribute to frontend architecture decisions for high-quality solutions.

Skills

React

TypeScript

Frontend architecture

UI component libraries

Testing frameworks

Node.js

Job description

Team Duplo is looking for a Senior Software Engineer to help shape the customer experience across Smartly. You'll work on customer onboarding, dashboards, and Design System adoption, helping create a consistent and intuitive experience across our platform. As part of the Platform Functionality (Media) product group, you'll collaborate closely with engineers, designers, and product partners to improve how customers discover value in Smartly and become long-term successful users.

What You Will Do

• Extend and maintain Smartly's Design System library to support consistent user experiences across the platform.
• Partner with designers to improve UI development workflows, tooling, and collaboration practices.
• Drive Design System adoption across existing product areas by improving shared components and implementation patterns.
• Own and improve frontend build, release, and deployment processes to support reliable development and delivery.
• Develop customer-facing features that support onboarding, product adoption, and customer success outcomes.
• Contribute to frontend architecture decisions, ensuring maintainable, scalable, and high-quality solutions.
• Work across the Smartly application to surface insights, recommendations, notifications, and alerts that improve customer experience.
• Collaborate with engineers, product managers, designers, and your Engineering Manager to deliver technical excellence and business impact.

What We Are Looking For

• Strong experience building modern web applications using React and TypeScript.
• Experience designing and maintaining reusable UI component libraries or Design Systems.
• Ability to own features and technical initiatives from design through implementation and release.
• Solid understanding of frontend architecture, performance, accessibility, and maintainability best practices.
• Experience working with testing frameworks such as Vitest, React Testing Library, or similar tools.
• Familiarity with backend development using Node.js and TypeScript.
• Strong collaboration skills and the ability to work effectively with designers, product managers, and engineers.
• A pragmatic approach to problem-solving and continuous improvement of engineering practices.

What We Offer You

At Smartly, we offer a place where you can advance your career. Here, you'll find:

An Inclusive Global Culture: Join a team of over 750 Smartlies, representing more than 60 nationalities across 24 locations in 13 countries. We cultivate a culture built on trust, transparency, and open feedback, where diverse perspectives are valued and encouraged.

Global Impact: Contribute to a company making a global impact, directly influencing our customers' success and business growth.

Focus on Wellbeing: We prioritize your health with healthcare packages, mental health services, and a commitment to work-life balance through paid holidays and family leave.

Comprehensive Rewards: Benefit from equity options, performance-based rewards, competitive compensation, and career development opportunities.

Flexible Hybrid Workplace: Experience a hybrid work model, balancing office collaboration with remote work, and the option to work abroad for up to 30 days annually.