Senior Software Engineer (Editor)
- Level
- Senior
Not stated in the posting: salary, work type, visa.
Open. First seen 2 November 2026.
About the role
Are you an ambitious Senior Frontend Engineer ready to take on new challenges and grow exceptionally in your career? Join our team Editor as a Senior Frontend Engineer and be at the forefront of transforming our Creative production tooling!
About the Team:
Smartly proudly houses Editor, the creative heart of our platform. We build the engine that brings advertising to life, providing the essential tools for scaling creative post-production through image, video, and HTML templates. Our customers rely on our creative production tooling to design, animate, and scale millions of assets, and your future team will be placed in the center of all of this effort.
We are a Helsinki based group of experts passionate about solving high-level frontend challenges. Our squad enables the world's largest brands to turn a single design into a global campaign by mastering complex state management and high-performance canvas-based interactions. We are tech-agnostic at heart but rely heavily on React and TypeScript to build a seamless and powerful design experience. We are constantly looking for ways to improve and are dedicated to taking our product and our craft to the next level.
Check out our Engineering at Smartly site to learn how our engineering and product development work.
As a Senior Software Engineer, You Will:
- Own vertical slices of the Editor platform, taking end-to-end responsibility for complex projects from design to deployment.
- Find the smallest possible increments to deliver value to our customers as quickly as possible.
- Partner closely with Product and UX to dissect complex requirements into well-designed and well-executed software.
- Lead technical design decisions and tradeoffs, balancing long-term architecture with immediate product needs.
- Be a core contributor to our Creative Engineering Group, ensuring our frontend and core packages remain performant and scalable.
- Act as a mentor and technical guide, elevating the team through constructive code reviews and sharing your expertise.
- Drive projects forward independently and proactively dispatching roadblocks.
What We’re Looking For:
- Minimum of 6 years of experience in building robust, complex web applications with a mastery of frontend development.
- Expertise in React and TypeScript, with a deep understanding of state management and performance optimization.
- Proven ability to drive projects independently, showing persistence and autonomy in the face of technical hurdles.
- Ambition and eagerness to excel and commitment to continuous growth
- Excellent spoken and written communication skills in English
- Strong analytical skills to translate a broad product vision into actionable technical tasks.
- Motivation for solving customers' problems and delivering value to customers at a fast pace
- Ability to work in a hybrid capacity from our Helsinki office 3 days a week.
What We Offer You:
- Inclusive Culture: Join a team of over 850 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.
Smartly is committed to being the best place to work for growth-minded individuals to thrive - explore more in our Culture Handbook!
What to Expect from Our Recruitment Experience:
- Meet your Recruiter: Get to know each other and learn about working at Smartly.
- Meet the Team Lead: Gain deeper insights into your future team.
- Meet the Team in Technical Interviews: Engage in an interactive coding interview followed by a discussion around Systems Design and Architecture.
- Meet the Leadership in a Final Meeting: A brief discussion with our VP of Engineering.
Apply Now and Shape Your Future with Smartly!
Smartly's standard text
Curious what it’s like to work at Smartly? Visit our Careers page to see how we grow, collaborate, and make impact together
#LI-JF2 #LI-Hybrid
About Smartly
Smartly's standard text
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.
Smartly's standard text
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.
The processing of your information is described in our Candidate Privacy Notice.
What this role asks for
Particular to this role
HTML
Rare in Smartly's other 29 open postings.
In most of Smartly's ads
TypeScript
Named in most of its open postings, whatever the role.
86% of this description is written for the role. The rest is Smartly's standard text, folded away below.
Compared with Smartly's other open jobs.
The team: Research & Development HIRES STEADILY
This role is one of 23 open in Research & Development. 3 were posted in the last 30 days and the oldest in February: a team that hires all year rather than one being built.
WHAT THE TEAM WORKS WITH, ACROSS ITS POSTINGS
TypeScript (18 of 23), PostgreSQL (16 of 23), Kubernetes (13 of 23), Node.js (13 of 23), JavaScript (12 of 23), React (11 of 23), Kafka (9 of 23)
OTHER ROLES ON THIS TEAM
- Early Interest - Senior Fullstack Engineer, Mexico posted Oct 28
- Senior Software Engineer (Autopsy) posted Oct 19
- Senior Software Engineer - AI Platform posted Oct 6
- Senior Software Engineer - AI Platform posted Oct 6
- Senior Software Engineer - Reporting Platform posted Sep 9
- Senior Software Engineer (TikTok) posted Aug 25
- Senior Data Platform Engineer posted Aug 25
- Senior Fullstack Engineer (Creative & Asset Library) posted Aug 14
- Senior Engineering Manager, Ad Performance Recommendation posted Aug 10
- Senior Engineering Manager, Ad Performance Recommendation posted Aug 10
- Early Interest - Senior Fullstack Engineer, Helsinki posted Jul 31
- Senior Quality Engineer posted Jul 3
- Principal Engineer, Platform posted Jun 26
- Senior Software Engineer, Meta posted Jun 12
- Senior Machine Learning Engineer, AI Platform posted Jun 11
- Senior Machine Learning Engineer, AI Platform posted Jun 11
- Software Engineer, Large-Scale Data Systems posted Jun 5
- Senior Engineering Manager posted Apr 10
- Senior Software Engineer (Rendering) posted Apr 8
- Senior Software Engineer - Authorisation posted Mar 11
- Senior Backend Engineer posted Feb 26
- Engineering Manager posted Feb 25
From the team and dates on Smartly's own job board.
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