Senior Software Engineer, Meta

Smartly; Helsinki; Hybrid; EUR 60,000 - 90,000; Full time

Benefits offered by this job

Healthcare packages

Mental health services

Paid holidays

Flexible hybrid workplace

Equity options

Career development opportunities

Job summary

Smartly in Helsinki is seeking a Senior Software Engineer to design and evolve systems for high-volume advertising workflows. You will collaborate closely with cross-functional teams to deliver impactful features. The role requires strong experience in backend or full-stack development, primarily using TypeScript and Node.js.

Smartly offers a hybrid work environment, focusing on your well-being and providing a competitive compensation package. Join them and help shape the future of advertising technology!

Qualifications

• Strong experience building and shipping production software.
• Professional experience with TypeScript and Node.js.
• Experience with APIs, cloud infrastructure, and distributed systems.
• Ability to make thoughtful technical decisions.

Responsibilities

• Design, build, and maintain backend services.
• Collaborate with various teams to turn business needs into solutions.
• Mentor other engineers on operational excellence.
• Develop systems that process high volumes of advertising operations.

Skills

TypeScript

Node.js

Relational databases

APIs

Cloud infrastructure

Distributed systems

AI capabilities

Strong communication skills

Tools

PostgreSQL

React

Playwright

Kafka

BullMQ

Kubernetes

Distributed tracing tools

Job description

Meta Workspaces is a core product area at Smartly, helping advertisers manage, automate, and scale campaigns on Meta through Smartly. The team builds customer-facing experiences, automation capabilities, and integrations with the Meta Marketing API, enabling customers to access platform capabilities efficiently and operate at scale.

As a Senior Software Engineer, you will help design and evolve systems that power high-volume advertising workflows used by customers around the world. You will work across the full stack, own significant technical initiatives, and help shape the architecture of reliable, high-performance systems. You will collaborate closely with product managers, designers, and engineers to deliver features that directly impact how customers manage and automate their advertising operations.

What You Will Do

• Design, build, and maintain backend services and full-stack product capabilities at the core of Smartly’s Meta Workspaces.
• Build and maintain integrations with the Meta Marketing API, enabling customers to access new platform capabilities and manage advertising workflows through Smartly.
• Develop and operate systems that process high volumes of advertising operations and data while maintaining strong reliability, performance, and scalability characteristics.
• Own high-impact features from product discovery and API design through implementation, testing, rollout, and iteration.
• Collaborate with product, design, infrastructure, data, and engineering teams to turn business needs into reliable technical solutions.
• Improve the scalability, reliability, performance, and observability of services operating under real production load.
• Design robust APIs, service boundaries, and integrations that support complex automation and workflow-driven products.
• Explore practical ways to use AI-enabled tools to improve engineering workflows, developer productivity, and the quality of team delivery.
• Mentor other engineers and help raise the bar for testing, monitoring, code quality, and operational excellence.

What 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

TypeScript, Node.js, PostgreSQL, React, Playwright, Jotai, Kafka, BullMQ, Kubernetes, distributed tracing and observability tooling, and modern testing frameworks.

What We Offer You

• An Inclusive Global Culture: Join a team of over 750 Smartlies, representing more than 60 nationalities across 24 locations in 13 countries.
• 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.

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