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Senior Software Engineer with 8+ years delivering Full Stack products across industrial IoT, AI SaaS, and consulting domains using React, Node.js, APIs, and Cloud platforms. Strong experience building secure user flows, scheduling-oriented features, and third-party integrations, with practical ownership of scalable backend services, responsive interfaces, and production deployments. Hands-on background with Microservices, RESTful APIs, authentication, calendar and notification integrations, and automated testing for reliable MVP delivery in fast-moving environments. Recognized for product-focused execution, clear communication, and translating complex requirements into maintainable solutions that improve performance, release confidence, and user experience.…Senior Software Engineer with 8+ years delivering Full Stack products across industrial IoT, AI SaaS, and consulting domains using React, Node.js, APIs, and Cloud platforms. Strong experience building secure user flows, scheduling-oriented features, and third-party integrations, with practical ownership of scalable backend services, responsive interfaces, and production deployments. Hands-on background with Microservices, RESTful APIs, authentication, calendar and notification integrations, and automated testing for reliable MVP delivery in fast-moving environments. Recognized for product-focused execution, clear communication, and translating complex requirements into maintainable solutions that improve performance, release confidence, and user experience.

Artur Zawadka

Full Stack Developer, Web Developer, Front-End Developer, +3

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Senior Software Engineer with 8+ years delivering Full Stack products across industrial IoT, AI SaaS, and consulting domains using React, Node.js, APIs, and Cloud platforms. Strong experience building secure user flows, scheduling-oriented features, and third-party integrations, with practical ownership of scalable backend services, responsive interfaces, and production deployments. Hands-on background with Microservices, RESTful APIs, authentication, calendar and notification integrations, and automated testing for reliable MVP delivery in fast-moving environments. Recognized for product-focused execution, clear communication, and translating complex requirements into maintainable solutions that improve performance, release confidence, and user experience.…Senior Software Engineer with 8+ years delivering Full Stack products across industrial IoT, AI SaaS, and consulting domains using React, Node.js, APIs, and Cloud platforms. Strong experience building secure user flows, scheduling-oriented features, and third-party integrations, with practical ownership of scalable backend services, responsive interfaces, and production deployments. Hands-on background with Microservices, RESTful APIs, authentication, calendar and notification integrations, and automated testing for reliable MVP delivery in fast-moving environments. Recognized for product-focused execution, clear communication, and translating complex requirements into maintainable solutions that improve performance, release confidence, and user experience.

Available to hire

Senior Software Engineer with 8+ years delivering Full Stack products across industrial IoT, AI SaaS, and
consulting domains using React, Node.js, APIs, and Cloud platforms. Strong experience building secure user
flows, scheduling-oriented features, and third-party integrations, with practical ownership of scalable backend
services, responsive interfaces, and production deployments. Hands-on background with Microservices, RESTful APIs, authentication, calendar and notification integrations, and automated testing for reliable MVP
delivery in fast-moving environments. Recognized for product-focused execution, clear communication, and
translating complex requirements into maintainable solutions that improve performance, release confidence, and
user experience.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Work Experience

Senior Software Engineer at The Cervantes Group

September 1, 2025 - September 1, 2025

Led development of a large-scale e-commerce platform using Node.js, Express.js, MongoDB and ReactJS with Redux and Redux-Saga. Designed and optimized REST APIs for a microservices architecture, implemented Redis caching, and integrated RabbitMQ for real-time order processing and notifications. Collaborated in Agile sprints, performed code reviews and mentored junior developers on React, Redux, and Node.js. Translated wireframes into reusable UI components with Styled Components, TailwindCSS, and Material UI, and improved performance, reducing load times and API latency. Implemented unit/integration tests with Jest and Mocha to achieve high coverage and support CI/CD with GitLab.

Software Developer at Synerise

September 1, 2024 - September 1, 2024

Developed scalable web applications with Node.js, Express.js, MongoDB and ReactJS, implementing Redux and Redux-Saga for state management and asynchronous workflows. Built and optimized RESTful APIs for millions of users, using Redis caching and RabbitMQ messaging for performance and reliability. Designed server-side queries in PostgreSQL and MongoDB, achieving ~30% query improvement. Implemented microservices and containerized deployments with Docker and Kubernetes. Created reusable UI components with Styled Components, Material UI, and TailwindCSS and supported Agile practices, code reviews, and mentoring. Contributed to ELK-based observability, improving issue detection times, and supported GitLab-based CI/CD.

Junior Software Engineer at ELMODIS

June 1, 2019 - June 1, 2019

Assisted in development of web applications using Node.js, Express.js, and ReactJS; contributed to API development and database optimization in MongoDB and MySQL. Participated in Agile development, code reviews, and teamwork. Wrote unit tests with Jest and Mocha to ensure reliability and maintainability. Supported deployment and server management using Docker and AWS EC2 for production releases.

Senior Software Engineer at The Cervantes Group

October 1, 2024 - September 1, 2025

Led Full Stack delivery for an education services client, building a responsive React web application and Node.js APIs for tutor discovery, bookings, and profile workflows. Designed secure authentication and profile management using OAuth2, JWT, and role-based permissions, supporting separate student and tutor experiences with protected scheduling and messaging actions. Implemented booking, confirmation, rescheduling, and cancellation logic with timezone-aware rules, reducing scheduling conflicts by 40% across multi-region sessions coordinated through integrated calendar providers. Built tutor profile management tools covering subjects, availability windows, pricing metadata, and session preferences, enabling non-technical administrators to support marketplace onboarding and profile quality reviews. Integrated notification pipelines for reminders and session updates using email APIs, webhooks, and queue-based processing, improving successful session attendance rates by 25% during MVP r

Software Developer at Synerise

August 1, 2019 - September 1, 2024

Built and maintained customer-facing React interfaces and backend services for high-scale SaaS workflows, emphasizing reusable components, API consistency, and operational reliability across multiple product modules. Owned complex feature development from requirements through production support, coordinating with product and data teams to align UX decisions, data contracts, and backend implementation details. Designed service modules and integration patterns using Node.js, Python, and RESTful APIs, improving maintainability for rapidly evolving automation and engagement workflows within small cross-functional teams. Implemented secure user access controls and audit-friendly profile operations, aligning platform behavior with internal privacy practices and enterprise customer expectations for sensitive behavioral datasets. Optimized asynchronous jobs, database queries, and caching paths, reducing processing latency by 30% for user segmentation and campaign workflows serving large multi-

Junior Software Engineer at ELMODIS

May 1, 2017 - June 1, 2019

Developed end-to-end product features for industrial monitoring dashboards using React and backend APIs, delivering user-centric interfaces for machine insights, alerts, and operational configuration workflows. Implemented API integrations, data models, and scheduling-style background tasks for telemetry processing, improving reliability of periodic KPI updates and status notifications across monitored assets. Optimized dashboard data retrieval and query execution paths, reducing page response times by 40% for engineers reviewing equipment performance trends and maintenance planning signals. Wrote automated tests and integration checks for frontend and backend changes, improving release stability and accelerating troubleshooting during iterative product updates with cross-functional teammates. Collaborated with senior engineers and domain specialists in Agile delivery cycles, strengthening ownership, communication, and process improvement while shipping maintainable features for produc