Senior Software Engineer, Campaign Automation & Optimization

Responsibilities

• Design, build, and maintain backend services and frontend applications that power campaign automation and optimization features.
• Contribute to technical and architectural decisions that improve scalability, reliability, and developer experience.
• Develop and evolve services such as Triggers, Ad Rotation, Smartly Actions, and Action Router.
• Collaborate with product managers, designers, and engineers across teams to deliver solutions that address customer needs.
• Own projects from planning through implementation, balancing short-term requirements with long-term maintainability.
• Improve system quality through automated testing, monitoring, and continuous improvement of engineering practices.
• Mentor engineers through code reviews, knowledge sharing, and technical collaboration.
• Help shape Smartly's target architecture by contributing to cross-team initiatives and platform improvements.

Requirements

• Strong experience building backend services with TypeScript and Node.js.
• Experience developing modern React applications using TypeScript.
• Solid understanding of distributed systems, APIs, microservice architectures, and cloud-native development practices.
• Experience writing and maintaining unit, integration, and end-to-end tests using tools such as Jest.
• Ability to independently drive projects from problem definition through delivery.
• Strong communication and collaboration skills, with experience working across multiple teams and functions.
• A mindset focused on customer value, pragmatic problem solving, and continuous improvement.
• Interest in mentoring and supporting the growth of other engineers.
• Ability and willingness to work from our Helsinki office three days per week.
• 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.
• Apply Now and Build Your Future with Smartly!
• Curious what it's like to work at Smartly? Visit our Careers page to see how we grow, collaborate, and make impact together.
• #LI-HYBRID
• About Smartly

Benefits

Additional Information

As a Senior Fullstack Engineer in Team Autopsy, you will build automation and optimization capabilities that help our customers save time, improve campaign performance, and reduce the manual work required to manage advertising campaigns at scale. Team Autopsy owns several core services at the heart of the Smartly platform, including Triggers, Ad Rotation, Smartly Actions, and Action Router. These systems enable customers to automate campaign management, optimize advertising performance, and reliably execute changes across multiple media platforms. As an independent fullstack team operating in the middle of the Smartly product ecosystem, we work closely with product managers, designers, and engineering teams across the company to deliver scalable solutions that create customer value. Our technology stack includes TypeScript, Node.js, NestJS, Koa, PostgreSQL, Redis, Kubernetes, and React. We are a data-heavy team and rely extensively on strong typing and shared TypeScript definitions that support development across Smartly.

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