Available to hire
Senior Fullstack Engineer with 8+ years of experience building scalable web applications
using React and Node.js. Expert in modern JavaScript/TypeScript ecosystems, RESTful and
GraphQL API design, and cloud-native architectures.
Proven track record of delivering high-impact features end-to-end across data-intensive
applications, financial platforms, and AI-powered enterprise tooling. Recognized for
combining strong frontend engineering with pragmatic backend architecture.
Trusted to lead fullstack strategy, modernize legacy systems, and implement operational
practices that improve reliability, observability, and performance at scale.
Skills
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Work Experience
Senior Software Engineer at Zalando
July 1, 2025 - August 21, 2025Built React/TypeScript user interfaces for merchant dashboards, improving engagement by 30% and reducing UI load times by 40%. Developed Node.js backend services focused on data aggregation and analytics, reducing API latency by 25%. Delivered full features from frontend to backend within Agile cycles, maintaining architectural stability. Integrated internal microservices through REST APIs to ensure transactional integrity. Collaborated with UX and product teams to translate wireframes into consistent, production-ready features. Established clean code standards enhancing maintainability and team velocity. Participated actively in product planning, communicating technical limitations clearly. Managed and resolved complex bugs affecting frontend and backend within 24 hours, boosting production reliability.
Full Stack Developer at Vuffy
August 1, 2022 - August 21, 2025Implemented reusable React components to accelerate UI development by 50% for internal CRM tools. Designed and maintained Node.js APIs for booking workflows, evolving systems from MVPs to customer-ready solutions. Built robust service integrations to enable real-time pricing and booking flows. Delivered well-documented and maintainable codebases with clear separation of concerns. Aligned technical solutions with product requirements and anticipated edge cases. Optimized development lifecycle via build pipelines and automated testing. Promoted strong communication and paired programming to ensure frontend-backend alignment. Quickly investigated and resolved production performance regressions to minimize customer impact.
Full Stack Developer at Hyland
June 1, 2019 - August 21, 2025Developed data management features using React and Node.js supporting end-to-end business workflows. Enforced best practices for HTML, CSS, and JS to ensure cross-browser compatibility and responsiveness. Created reusable UI modules improving team consistency and code reuse. Expanded backend APIs centralizing data operations and simplifying system interactions. Authored detailed technical documentation to aid knowledge sharing across teams. Collaborated effectively with design and product teams for cohesive feature delivery. Delivered polished, user-friendly software by focusing on detail and problem-solving. Responded to production incidents and implemented preventive fixes to improve reliability.
Senior Software Engineer at Amazon
November 1, 2022 - December 1, 2025Architected and delivered intelligent internal platform combining high-performance Python services, Next.js interfaces, and AI-powered workflows used by global operations teams. Designed a service-oriented architecture using FastAPI to support high-throughput internal apps handling millions of transactional records. Built AI-assisted tools leveraging LLM APIs to automate reporting, explain anomalies, and recommend workflows. Led development of a Next.js + TypeScript frontend with server-side rendering and edge optimizations, reducing page load times by 45%. Implemented streaming AI responses on the frontend for real-time interaction with intelligent assistants. Created reusable backend modules for prompt orchestration, structured outputs, and context injection. Built background processing pipelines using Celery and Redis for long-running AI inference. Optimized PostgreSQL queries and indexing strategies, reducing critical endpoint latency by 60%. Introduced semantic search backed by ve
Full Stack Developer at Vuffy
September 1, 2019 - August 1, 2022Architected the core backend using Django + FastAPI, separating synchronous business logic from high-performance async endpoints. Developed AI-powered personalization features increasing user retention by 30%. Built a Next.js application with hybrid rendering strategies for optimal SEO and performance. Integrated LLM services to generate contextual health insights, reducing support load significantly. Designed a modular AI integration layer enabling rapid experimentation with emerging models. Implemented vector-based retrieval systems to ground AI responses in verified medical datasets. Built secure multi-tenant architectures with strict data isolation. Reduced infrastructure costs by introducing intelligent caching and query optimization. Created event-driven workflows to trigger AI enrichment after key user actions. Developed real-time notification systems using WebSockets. Implemented feature flags to safely roll out AI-driven capabilities. Strengthened platform security to meet GDP
Full Stack Developer at Hyland
July 1, 2016 - June 1, 2019Developed Django-based APIs powering mission-critical document management systems. Built dynamic React interfaces prior to migration to SSR patterns. Designed workflow engines capable of orchestrating complex multi-step processes. Introduced intelligent document parsing using early ML services to reduce manual processing. Implemented scalable file ingestion pipelines handling large batch uploads. Optimized database performance for high-volume enterprise workloads. Containerized legacy services to modernize deployment workflows. Improved authentication flows with OAuth-based identity providers. Built audit-friendly logging systems for compliance-heavy customers. Reduced defect rates by expanding automated test coverage. Collaborated with solution architects on multi-region deployment strategies. Played a key role in evolving engineering culture toward DevOps practices.
Senior Fullstack Engineer at Zalando
April 1, 2024 - January 1, 2026Led fullstack development of AI-powered operational tooling for thousands of enterprise users. Built a React SPA with TypeScript, applied Redux Toolkit, and achieved 96 Lighthouse accessibility. Designed and deployed Node.js/Express microservices handling 2M+ daily requests with p99 latency under 80ms. Integrated OpenAI API and LangChain to create an AI assistant, reducing task time by 35%. Architected a RAG pipeline with vector search and Node.js orchestration; delivered 91% relevance. Implemented real-time dashboards with Socket.io and Redis pub/sub for sub-200ms updates. Built a GraphQL API layer (Apollo Server) unifying data across 8 microservices, reducing frontend API calls by 60%. Migrated frontend/backend to TypeScript. Established testing (Jest, RTL, Cypress) achieving 85% code coverage and cutting production bugs by 55%. Reengineered data access with Sequelize and Redis caching, reducing p99 latency by 60%. Introduced LaunchDarkly feature flags and championed production readi
Senior Fullstack Engineer at Vuffy
January 1, 2022 - March 1, 2024Senior fullstack engineer on a large-scale financial platform with React frontend and Node.js backend. Architected core financial services, built interactive data visualizations with React and D3.js, and designed a real-time ledger service with deterministic ordering. Introduced event sourcing for auditability, improved API response times via multi-layer caching and data access optimization, and led a large-scale refactor to modular services with zero-downtime migrations. Collaborated with data engineering to design streaming pipelines; strengthened security with structured secrets management and token-based auth; expanded automated testing across the stack.
Fullstack Engineer at Hyland
February 1, 2019 - December 1, 2021Helped evolve frontend and backend powering a major e-commerce ecosystem, focusing on scalability, resilience, and developer productivity. Built UI and backend services for catalog ingestion, pricing engines, and merchant workflows. Designed Redis/Bull-based background job queues to absorb traffic spikes; optimized PostgreSQL workloads with partitioning and indexing; implemented rate-limiting and traffic shaping; containerized legacy services for Kubernetes adoption; established structured logging; collaborated with SREs to define SLIs/SLOs; advocated for robust API design standards.
Fullstack Developer at Ralabs
July 1, 2016 - January 1, 2019Developed fullstack features for hospitality platforms, including multi-tenant REST APIs with data isolation, complex booking domain modeling, caching, webhook infrastructure, and improved performance. Implemented domain boundaries and service objects to improve maintainability; strengthened error handling and cross-team safety; documented service contracts.
Education
Bachelor of Computer Science at University of Tartu, Estonia
January 1, 2012 - January 1, 2016Bachelor's Degree in Computer Science at University of Tartu
January 1, 2012 - January 1, 2016Bachelor's Degree in Computer Science at University of Tartu, Estonia
January 1, 2012 - January 1, 2016Qualifications
Industry Experience
Software & Internet, Retail, Professional Services, Financial Services
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