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Senior Engineering Manager (Design Systems & UI Development)

Smartly.io

Smartly.io

Software Engineering, Other Engineering, Product, Design
Helsinki, Finland
Posted on Jan 21, 2026

We are looking for an Engineering Manager to join team Duplo. The team is the primary Frontend team of Smartly and focuses on the adoption of Design System, customer onboarding experience of Smartly and customer dashboards. This includes the holistic customer experience across our platform as well as the onboarding journey from the first Aha-moments to becoming lifelong happy customers of Smartly. Team Duplo is also working with the Design Systems to ensure consistency across the product, enhancing the user experience and enabling engineers and designers to work efficiently. Additionally, the team includes an internal sub-team dedicated to centralized UI development, serving several connected teams. The Engineering Manager works in close collaboration with the Lead Engineer and other Engineers of the team to ensure technical excellence.

The teams in the group are building a variety of functionality that are agnostic of our advertising platform integrations and work across them like campaign analytics, actionability, advertising automation and customer onboarding journey.

The team is front-end heavy, with React and TypeScript being the primary stack. On the backend, the favored stack at Smartly.io is Node.js in combination with TypeScript. For testing we use Jest and React Testing Library.

Our engineering teams consist of both product specialists and engineers, and alongside the lead engineer you will take the lead in delivering products and features in the right time with right content and brilliant quality. As an Engineering Manager, you will be in charge of getting the best out of people, through coaching, 1:1s, helping them build a development plan and in general removing blockers from the team's path.

Read more about the our culture and developer ways of working:

Our Culture Handbook

Engineering at Smartly

What you’ll do…

  • Lead an autonomous Fullstack development team. Lead by example.
  • Facilitate the team at team level. Enable them.
  • Care about your team members' growth and development. Go far together.
  • Tackle ambitious technical problems and add your mark to our Engineering culture. Help us grow.

What we’re looking for…

  • You have experience throughout the full software life-cycle in an environment with multiple teams.
  • You have built and maintained large-scale, high-availability web applications with an active and growing user base.
  • You have experience in various agile development practices as well as the pragmatism to know which tradeoffs are acceptable and a sharp focus on delivery.
  • Ability to deliver constructive feedback that leads to meaningful changes and growth.
  • Empathetic and user-focused: you care deeply about the product experience, you understand users’ motivations and frustrations, and you genuinely want to help them.
  • You are a skilled developer. You will need to be also hands-on when coaching the team members to new technical and professional heights, which can involve code reviews, pair programming, etc.
  • Ability to work from our Helsinki office three days a week.

What We Offer You:

  • Inclusive Culture: Join a team of over 800 Smartlies representing more than 60 nationalities across 24 locations in 13 countries, we foster a culture built on trust, transparency, and open feedback.
  • Global Impact: Be part of a company making a global impact, directly influencing our customers and business growth.
  • Wellbeing Focus: Enjoy generous healthcare packages, mental health services, and a healthy work-life balance with paid holidays and family leave.
  • Total Rewards: Benefit from equity options, performance-based rewards, competitive compensation, and ample career development opportunities.
  • Hybrid Workplace: We work in a hybrid model, balancing office and remote work, with the option to work abroad for up to 30 days.

About Smartly

Smartly is the AI-powered advertising technology company transforming ad experiences for brands and their consumers. Our comprehensive advertising platform seamlessly integrates the capabilities of media, creative, and intelligence to power more than 800 billion impressions and generate more than 300 billion creatives annually, delivering tangible business outcomes for brands and advertisers.

Smartly is the only company in the industry recognized as a Leader in The Forrester Wave: Creative Advertising Technologies with PwC validating the results it delivers for brands. We manage creative and media for 700+ brands worldwide and $6B in ad spend across the largest media platforms, including Facebook, Google, Instagram, Pinterest, Snap, and TikTok. Our end-to-end technology, unmatched access to media platforms and exceptional customer service help Fortune 500 brands to reach and engage consumers and learn what performs best.Smartly is a multinational and diverse team of 750+ Smartlies from 60+ nationalities, working in 13 countries. Together, we want to create and maintain an inclusive environment where everyone feels respected and heard. Our Diversity, Equity & Inclusion approach is at the heart of it.

Visit Smartly to learn more.