Senior Software Engineer, Meta

We Are Looking For Strong experience building and shipping production software as a backend or full-stack engineer. Professional experience with TypeScript and Node.js. Practical experience with relational databases, APIs, cloud infrastructure, and distributed systems. Experience designing, operating, and scaling production services with demanding reliability, performance, and availability requirements. Ability to make thoughtful technical decisions in ambiguous situations and balance quality, speed, and long-term maintainability. Experience collaborating across functions and contributing to technical discussions that shape product and engineering outcomes. Strong written and verbal communication skills in English. Curiosity about emerging AI capabilities and willingness to explore opportunities to improve products, workflows, and developer productivity through AI. Ability to work effectively in a hybrid setup, including three days per week in our Helsinki office. Relevant technologies for this team include TypeScript, Node.js, PostgreSQL, React, Playwright, Jotai, Kafka, BullMQ, Kubernetes, distributed tracing and observability tooling, and modern testing frameworks. We don’t expect experience with every technology listed, but we value engineers who enjoy learning new technologies and working across different parts of the stack. 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 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. The processing of your information is described in our Candidate Privacy Notice .