Andersen is hiring a Software Architect / Tech Lead to design and drive a scalable e-commerce architecture, translating business strategy into modern, high-performance technical solutions. The customer is a digital solutions provider focused on building scalable, high-performance platforms. It leverages modern architectures and data-driven approaches to deliver measurable business outcomes across various industries. The project is focused on building and evolving a modern e-commerce ecosystem by translating business strategy into scalable technical architecture. It involves leading framework-agnostic decisions around modern meta-frameworks (such as Next.js or Nuxt) and guiding the team through implementation to ensure technical excellence and long-term scalability. Responsibilities: Defining and evolving the technical architecture for our e-commerce platform, with a focus on migrating from monolithic systems to a modern headless architecture. Leading the technical strategy for replatforming from a complex legacy system to a modern commerce platform, ensuring minimal business disruption and maintaining feature parity where needed. Contributing to framework selection decisions, evaluating Next.js vs. Nuxt based on project requirements, team expertise, platform integration capabilities, and long-term scalability. Making and justifying architectural decisions based on business constraints, scalability requirements, and long-term maintainability. Designing architecture with cost efficiency in mind, leveraging platform capabilities to reduce infrastructure complexity and operational overhead. Translating architectural vision into actionable tasks, mentoring developers in modern web practices, establishing coding standards and design patterns. Serving as the primary technical liaison between business stakeholders and the development team, ensuring alignment between technical solutions and business objectives. Working closely with Project Managers to break down complex initiatives into deliverable milestones and ensure timely execution. Leading discovery and planning sessions for new features, including SSR/ISR strategies, edge computing approaches, and performance optimization. Must-haves: Experience with production-scale Next.js, Nuxt, or comparable modern meta-frameworks (Remix, SvelteKit), including deep expertise in SSR, ISR, routing strategies, and caching patterns – 3+ years. Experience building production applications with React or Vue using modern JavaScript/TypeScript, with a focus on depth rather than a specific library – 5+ years. Proven experience leading migrations from legacy/custom-built e-commerce systems to modern headless platforms. Experience architecting within platform constraints and designing integrations with third party services (payments, fulfillment, marketing tools, etc.). Strong proficiency with TypeScript, modern build tools (Vite, Turbopack, Webpack), and utility-first CSS frameworks (Tailwind CSS). Experience with modern edge platforms (Vercel, Netlify, Cloudflare) including deployment, configuration, and Core Web Vitals optimization. Track record leading technical teams through complex migrations and mentoring developers. Level of English – from Upper-Intermediate and above. Nice-to-haves: Experience with both React and Vue ecosystems, demonstrating framework-agnostic thinking and adaptability. Experience evaluating and choosing frameworks based on business requirements, team capabilities, and long-term maintainability. Deep expertise with routing strategies, caching patterns, React Server Components or Vue Server Components, and streaming patterns. Experience designing and implementing serverless functions and edge computing solutions. Ability to quickly understand unfamiliar codebases, extract business logic from legacy systems, and translate requirements into modern architecture patterns. Experience with phased rollout approaches, feature flags, parallel-run strategies, and rollback planning to ensure business continuity during platform transitions. Expertise modern state management patterns and libraries (Zustand, Jotai, Pinia, React Query/TanStack Query). Hands-on experience with enterprise e-commerce platforms. Demonstrated success improving Core Web Vitals and page performance in production environments. Experience using generative AI tools to accelerate development workflows. Implementation experience with NextAuth.js, Nuxt Auth, or similar frameworks, including understanding of OAuth2 flows, session management, and secure token handling. Strong testing practices (Jest, Vitest, Playwright) and experience with CI/CD pipelines. Experience designing and implementing and securing RESTful and GraphQL APIs. Reasons why this job would be interesting to you: Experience in teamwork with leaders in FinTech, Healthcare, Retail, Telecom, and others. Andersen cooperates with such businesses as Samsung, Siemens, Johnson & Johnson, BNP Paribas, Ryanair, Mercedes, TUI, Verivox, Allianz, T-Systems, etc.. The opportunity to change the project and/or develop expertise in an interesting business domain. Job conditions – you can work both fully remotely and from the office or can choose a hybrid variant. Guarantee of professional, financial, and career growth! The company has introduced systems of mentoring and adaptation for each new employee. The opportunity to earn up to an additional 1,000 USD per month, depending on the level of expertise, which will be included in the annual bonus, by participating in the company's activities. Access to the corporate training portal, where the entire knowledge base of the company is collected and which is constantly updated. Bright corporate life (parties / pizza days / PlayStation / fruits / coffee / snacks / movies). Certification compensation (AWS, PMP, etc). Referral program. English courses. Private health insurance and compensation for sports activities. Your personal data is protected in accordance with GDPR regulations. Learn more: https://andersenlab.com/privacy-policy/pl Join us!