# Anastasiya Nasevich > Staff Fullstack | AI | Staff Frontend Developer | Fintech | Team Lead Frontend | Engineering Manager Location: Warsaw Metropolitan Area, Poland Profile: https://flows.cv/anastasiyanasevich Staff Full-Stack & Frontend Engineer with 9+ years in engineering and 3+ years leading high-performing teams. I specialize in building scalable web platforms, designing complex payment architectures, and delivering products that move metrics and accelerate business growth. My background spans full-stack development (TypeScript / Python / Node.js), high-impact frontend engineering (React), and leading engineering teams through fast-paced product cycles. I’ve architected multi-provider payment systems (Stripe, Primer, Chargebee, PayPal, Apple/Google Pay, Adyen) and shipped platforms used at scale. I bring a mix of deep technical ownership, product thinking, and team leadership—and I love turning complex problems into clean, elegant solutions. Open to Staff Full-Stack, Senior Frontend, and Engineering Lead roles. Let’s connect: nastianosevich@gmail.com ## Work Experience ### Staff Fullstack Engineer| Forward Deployment Engineer @ devspace Jan 2025 – Present | Oslo, Norway * Led mobile–cloud integration using React Native, TypeScript, Firebase, GCP. * Built AI-augmented mobile features with LLM agents and automated decision layers. * Developed secure backend proxy with token validation and metadata injection. * Delivered AI-powered diagnostic tools for mobile ↔ cloud sync and anomaly detection. ### Staff Fullstack Engineer | Client Engagement Platform @ Mission Pet Health Jan 2025 – Jan 2025 | Alabama, United States * Architected the appointment-lifecycle platform using TypeScript, Node.js, Python, MongoDB. * Designed high-performance frontend systems using React/React Native and GraphQL/ Strawberry * Designed communication pipelines with Salesforce Marketing Cloud and Twilio SMS. * Added AI-driven platform capabilities, including LLM-based reconciliation and integration agents. * Improved reliability through CI/CD (YAML), structured logging, tracing, and AWS/Firebase ops ### Staff Architect Consultant | Technical Advisor for Scalable Web Solutions @ Unknown Jan 2024 – Jan 2025 * Built scalable platforms for leading tech companies on React, Next.js, TypeScript, Node.js, Python. * Designed high-performance frontend systems on React, TypeScript, and modern rendering patterns. * Developed multi-provider payment integrations (Stripe, Primer, Chargebee, Apple Pay). * Established CI/CD with GitHub Actions, Docker, Terraform, YAML pipelines, and AWS. * Delivered AI-driven enhancements LLMs, AI agents. ### Staff Payments Architect | Fullstack Engineer @ StellarTech Jan 2024 – Jan 2025 | New York, United States * Led a full-stack engineering team features with React, Node.js, Express, MongoDB. * Buildpayments platform with Stripe, Primer, Chargebee, PayPal, Apple Pay, Google Pay, Adyen. * Built checkout (3DS, subscriptions, webhooks) with PCI-DSS compliance and anti-fraud. * Delivered scalable payment architecture translating business needs into robust technical design. ### Frontend Team Lead | Fullstack Developer @ Palta Jan 2023 – Jan 2024 | London Area, United Kingdom * Led full-stack using Python, TypeScript, React, Node.js, MongoDB, building fintech products. * Architected payment flows integrating Stripe, Primer, PayPal, Apple Pay, Google Pay, Adyen * Designed fintech pipelines 3DS, tokenization, refunds, disputes, webhooks, PCI-DSS compliance. * Built payment orchestration & anti-fraud layers plus internal tools (e.g., Zendesk Extension). * Shipped fintech POCs validating new providers, routing logic, and scalable transaction models. ### Engineering Manager @ Novaspin Jan 2022 – Jan 2023 | Cyprus *Led end-to-end product development , building MVPs from scratch using TypeScript and Python. *Established scalable frontend standards, growing the team to five senior contributors across React. *Integrated CI/CD & Ops, improving deployment velocity, reliability, and cross-team workflows. *Managed strategic partnerships with enterprise clients and startups. ### Frontend Team Lead @ OrbitMI Inc Jan 2021 – Jan 2022 | New York, United States * Built real-time navigation UIs using React, Vue.js, TypeScript for vessel tracking and dashboards. * Designed GIS components with Mapbox GL, Leaflet, WebGL, raster & vector layers, heatmaps. * Impl geospatial computation (distance, ETA, weather overlays) with frontend algorithmic logic. * Led the Frontend team through Agile processes (sprint planning, task allocation, reviews). ### Frontend Developer @ PandaDoc Jan 2018 – Jan 2021 | San Francisco, California, United States * Built monetization & platform features using React, Next.js, TypeScript. * Developed Frontend components with TypeScript, JavaScript, React, Redux, Node.js, REST APIs. * Implemented analytics via Segment, Amplitude, Mixpanel, supporting A/B tests and funnels. * Improved performance with automation, CI pipelines, and frontend architecture patterns. ### Frontend Developer @ LeverX Group Jan 2016 – Jan 2018 | Miami, Florida, United States • Build new application for online consultation and arranging delivering doctors or healthcare workers at home. (JavaScript, React, Redux-thunk, HTML, Styled-components, Jest, Node.js) • FinTech (Vue.js, Vuex, Ruby on Rails, Continuous Integration and Continuous Delivery (CI/CD), Less, GraphQL, Apollo, REST API, jest, Mocha) ### Co Organizer @ Angular Minsk Jan 2016 – Jan 2017 Organizing speakers, helping with presentations, and promoting the community. ### Frontend Developer @ The Rolling Scopes School Jan 2015 – Jan 2016 | Warsaw, Mazowieckie, Poland Project: SongBird-React (JavaScript, React, HTML, CSS) Project: Piskel Clone  (JavaScript, React, HTML, CSS) Project: Fancy Weather  (JavaScript, React, HTML, CSS) ### Head of Department @ TransSolutions CZ Jan 2012 – Jan 2015 • Establishing an own team environment • Financial accounting and planning • Development of planning and strategy of the department • Work with major clients and sign contracts • Participation in tenders ## Education ### Bachelor's degree in Economics Belarusian State Economic University ### JavaScript / Front-End Development in JavaScript, React, Angular, HTML, CSS, Node, Testing... The Rolling Scopes School 2019Q3 ### JavaScript Web Programming ODO "Center for Educational Technologies Belhard" ## Contact & Social - LinkedIn: https://linkedin.com/in/anastasiya-nasevich --- Source: https://flows.cv/anastasiyanasevich JSON Resume: https://flows.cv/anastasiyanasevich/resume.json Last updated: 2026-04-05