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Senior Software Engineer (Data-driven Insights)

Helsinki
Help us build smarter marketing through data-driven insights.

We’re looking for a Senior Fullstack Engineer to join Team Reach, the squad behind an intelligent analytics tool that empowers brands to optimize their brand marketing spend. This platform aggregates and harmonizes complex data streams from social media and third-party services, surfacing key performance indicators that drive real-world business impact.
With a fresh codebase (just a bit over one year old), there’s significant room for architectural influence, innovation, and long-term technical vision. If you're passionate about solving intricate problems, mentoring others, and driving decisions that shape product and technology direction, this role is for you.
Tech Stack: Node.js, Typescript, Redis, React, Jotai, Apache ECharts, and business logic with custom-built deduplication and reach and frequency modeling
 
As a Senior Fullstack Engineer, You Will:
  • Lead design and implementation of new backend features to power analytics at scale.
  • Drive technical strategy and architectural decisions, ensuring scalability, reliability, and maintainability.
  • Create intuitive and performant user interfaces that make complex data accessible and actionable.
  • Contribute deeply to our math- and logic-heavy business logic layer underpinning the data model.
  • Mentor and guide other engineers, fostering a culture of growth, quality, and collaboration.
  • Collaborate directly with stakeholders to shape the product roadmap and feature priorities.
  • Operate as a senior member of a cross-functional, autonomous team that owns its decisions and outcomes.
What We’re Looking For:
  • Technical Leadership: You’ve led complex projects, influenced system architecture, and mentored engineers.
  • Problem Solver & System Thinker: You excel at tackling complexity—whether it’s system architecture, data modeling, or performance tuning.
  • Fullstack Expertise: You’ve built and shipped robust, high-performance web applications and understand how to balance front- and backend concerns.
  • Analytical Mindset: You think deeply about how things work and take a rigorous approach to decision-making. Bonus if you’ve worked with statistical models or in data-driven domains.
  • Growth Mindset: You thrive in dynamic environments, proactively learn, and help your team scale their impact.
  • Strong Communicator: You can bridge the gap between technical depth and business impact, engaging confidently with engineers and stakeholders alike.
What We Offer You:
  • Inclusive Culture: Join a diverse team of over 750 Smartlies from 60+ nationalities across 24 locations in 13 countries. We foster a culture built on trust and open feedback.
  • Global Impact: Work on solutions that directly influence advertisers worldwide and drive business growth.
  • Wellbeing & Work-Life Balance: Comprehensive healthcare, mental health services, paid holidays, and family leave.
  • Total Rewards: Equity options, performance-based rewards, competitive compensation, and career development opportunities.
  • Hybrid Workplace: Flexibility to work in a hybrid model, with the option to work abroad for up to 30 days per year.
At Smartly, we are committed to creating an environment where growth-minded individuals can thrive. Explore more in our Culture Handbook!
 
What to Expect from Our Recruitment Experience:
  1. Meet your Recruiter: Get to know each other and learn about working at Smartly.
  2. Meet the Lead: Gain deeper insights into your future role.
  3. Meet the Team in Technical Interviews: Interactive coding, plus deep dives into Systems Design and Architecture.
  4. Meet the Leadership in a Final Meeting: A brief discussion with our VP of Engineering.
Apply Now and Shape the Future of Marketing Analytics with Smartly!

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.

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