Principal Engineer (AdTech)

Act as a key technical liaison between business and engineering teams, translating commercial goals into actionable technical solutionsEvaluate publisher technical environments and design scalable, maintainable architecturesPrepare client-ready solution proposals, including features, integrations, and toolsLead cross-functional delivery teams, including developers, designers, DevOps, and technical PMsProvide architectural oversight throughout the development lifecycle to ensure continuity and qualityManage distributed teams across multiple time zonesMentor engineers, conduct code reviews, and guide technical growthMake architectural decisions at component and plugin levels, balancing trade-offs and communicating choices clearlyAt least 6+ years of hands-on experience in JavaScript / TypeScript, Vue.js, and Node.jsExperience in microservices architecture and distributed systems integrationHands-on experience with AWS Lambda or similar serverless technologiesDeep understanding of plugin-based systems and extensibility pointsProven ability to customize and extend existing solutions without breaking core functionalityExperience in AdTech environments with evolving requirementsKnowledge of Vite, Cypress, and Vitest for modern development workflows and testingExperience with AWS S3 and CloudFront for scalable storage and content deliveryStrong commercial acumen and ability to translate business goals into technical infrastructureFluent English communication skills for enterprise stakeholder managementWILL BE A PLUSExperience with other serverless frameworks (e.g., Azure Functions, Google Cloud Functions)Familiarity with enterprise e-commerce platformsKnowledge of performance optimization and security best practicesPrior work in media publishing technology solutionsPERSONAL PROFILEProactive, solution-oriented mindsetStrong problem-solving skills and ability to unblock dependenciesComfortable working in fast-paced environments with evolving requirementsSystem-thinking approach — seeing beyond individual tasks to the bigger pictureAre you an experienced technical leader ready to shape the future of scalable AdTech platforms? We are seeking a Principal Engineer to drive architectural transformation and lead high-impact projects for a Sweden-based industry innovator.This is a senior-level role with full remote flexibility across Europe. At Sigma Software, we partner with global leaders to deliver cutting-edge technology solutions that automate and optimize revenue-focused operations. You will work on strategic initiatives, collaborate with cross-functional teams, and influence technical direction in a fast-paced, evolving domain.Why join us? You’ll have the opportunity to work on globally recognized platforms, contribute to architectural innovation, and enjoy a supportive culture with challenging projects.CUSTOMEROur Customer is a Swedish AdTech company that transforms the way publishers and advertisers interact. They provide state-of-the-art self-serve advertising platforms that enable seamless, direct transactions between advertisers and some of the world’s largest publishers. Their mission is to make advertising more accessible, automated, and efficient through innovative technology. Together, we serve globally recognized clients, including TripAdvisor, Bloomberg, The Washington Post, Opera, Dow Jones, etc. PROJECTThe project represents a strategic transition to a Platform-First, API-driven architecture. The company is moving away from monolithic, client-specific codebases to a standardized ecosystem. As a Senior TypeScript/Vue.js Developer, you will be the technical visionary for the platforms, ensuring the technology remains high-performing and scalable.Originally posted on Himalayas