Available to hire
I am a Senior Software Engineer with over 10 years of experience specializing in scalable web application development using PHP frameworks such as Laravel, Symfony, and Slim, alongside Vue.js and other modern frontend technologies. I thrive on optimizing backend performance, building secure APIs, and integrating cloud-native services to deliver impactful solutions.
My career highlights include significantly improving application speed and deployment efficiency for high-traffic platforms, mentoring junior engineers to boost team productivity, and leveraging cloud solutions like AWS to reduce costs and increase reliability. I am passionate about cross-team collaboration and delivering maintainable, business-driven software.
Skills
Experience Level
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
Intermediate
Intermediate
Language
English
Fluent
Italian
Intermediate
Work Experience
Senior Full Stack Engineer (React.js / Next.js / Node.js / AWS) at NHS, England
April 30, 2025 - July 11, 2025Functioned as a Senior JavaScript/TypeScript Developer and Scrum Master for a team of 10 engineers, optimizing development cycles and project delivery. Architected scalable full-stack systems using React.js and Next.js for SSR and SSG, reducing page load times by 60% and improving SEO performance. Engineered reusable React components with drag-and-drop functionality, improving performance by 40%. Spearheaded migration of legacy Node.js APIs into modular microservices with Nest.js. Designed GraphQL APIs with Apollo Client, accelerating response speeds. Built serverless backend systems on AWS Lambda and DynamoDB, ensuring 99.9% uptime and processing 50K+ records per second. Collaborated with design teams for pixel-perfect, responsive UIs. Automated CI/CD pipelines, introduced testing best practices achieving 92%+ unit test coverage. Key achievements include a 32% increase in user adoption for analytics dashboard and reducing AWS infrastructure costs by 15%.
Senior Full Stack Developer (React / Angular / Node.js) at Geek-Solutions LLC, Belarus
October 31, 2020 - July 11, 2025Revamped Angular-based dashboards with RxJS for scalable state management and custom UI components. Managed AngularJS to React.js migration using strangler pattern, reducing technical debt by 45%. Introduced micro-frontend architecture with Webpack Federation for improved deployment efficiency. Built multi-step workflow forms using Formik and Yup for 100K+ users. Designed scalable Node.js APIs and transitioned RESTful services to Apollo GraphQL, reducing latency. Containerized workloads with Docker and deployed on Azure Kubernetes Service ensuring resilience. Automated regression testing with Cypress and Playwright, accelerating test cycles. Key achievements include increasing conversion rates by 18% through A/B testing and developing SSO with OAuth2.0, enhancing security and reducing login time by 40%.
Mid-Level Full Stack Developer (Vue.js / React / Node.js) at Notime AG, Switzerland
March 31, 2016 - July 11, 2025Built Single Page Applications using Vue.js with real-time analytics dashboards. Designed and implemented REST APIs with Node.js/Express.js improving performance. Led development of offline-first React Native apps with IndexedDB and geolocation for Android/iOS. Integrated Redis caching layers, improving data performance by 300%. Delivered containerized transaction processing systems on Google Kubernetes Engine for seamless staging and production scaling. Key achievements include building a Progressive Web Application with offline functionality increasing user engagement by 20%, and enhancing backend reliability for marketing platforms.
.NET Lead Full Stack Developer at NHS, England
April 30, 2025 - July 18, 2025Led the development of scalable ASP.NET MVC web applications and RESTful APIs, optimizing performance and reducing latency by 30%. Built dynamic front-end interfaces using HTML5, CSS3, Bootstrap, and AngularJS. Designed and implemented highly robust ASP.NET Core Web API to streamline workflows and reduce downtime by 25%. Improved SQL database performance by 40% and designed/deployed Azure CI/CD pipelines for Kubernetes, minimizing deployment time by 30%. Integrated multiple Azure Services to reduce infrastructure costs by 15% and automated resource creation with ARM templates and PowerShell scripts. Delivered high-performance messaging using Kafka and optimized React SPA performance. Migrated monolithic APIs into microservices, improving modularity and deployment by 45%. Worked with Agile teams and strengthened cloud security via OAuth and Azure Key Vault integration. Achieved 40% login time reduction with SSO module and managed real-time Azure IoT streams with 99.5% uptime.
Sr .NET Developer with Technical Lead at Geek-Solutions LLC, Estonia
October 31, 2020 - July 18, 2025Developed ASP.NET Core microservices and REST APIs processing sensitive financial data, achieving 99.9% secure transaction success rate. Created scalable front-end apps with React.js and JWT authentication for 100,000+ daily users. Automated workflows using Azure Functions and Service Bus Queues. Built CI/CD pipelines with Azure DevOps and Docker, cutting release cycles by 50%. Designed React SPA modules optimizing rendering by 25%. Leveraged Kubernetes for scalable containerized deployments. Collaborated with SRE/DevOps to resolve production bottlenecks under 2 hours. Enhanced business intelligence via SSIS packages and SSRS reports used by executives. Increased conversion rates by 18% following UX redesign and migrated workloads to Azure, saving 20% on infrastructure.
.NET Developer at Notime AG, Switzerland
March 31, 2016 - July 18, 2025Designed and developed ASP.NET MVC applications using C#, AJAX, LINQ, and SQL resulting in 30% faster user experience. Implemented Oracle PL/SQL triggers, packages and procedures managing 75K daily transactions with 99.9% reliability. Built SQL optimization solutions accelerating queries by 40%. Automated ETL with SSIS for patient benefits tracking. Developed React.js components supporting 80K+ active users. Resolved over 100 escalated production incidents monthly with 95% success. Streamlined API calls to WCF services to reduce response time by 20ms. Supported high-traffic enterprise systems with network routing and DNS management. Delivered new EDMX and LINQ ORM systems improving efficiency by 25% and boosted system uptime through PowerShell-based log management.
Senior Software Engineer at NHS
April 30, 2025 - July 23, 2025Designed and developed 15+ microservices in Java Spring Boot and Python, processing over 5 million patient records daily. Built RESTful and GraphQL APIs used by over 120K healthcare professionals. Integrated Kafka for real-time event streaming, reducing communication latency by 45%. Deployed containerized services on AWS EKS maintaining 99.95% uptime and handling traffic peaks of 10K requests per minute. Set up Prometheus and Grafana dashboards to improve incident detection and recovery. Improved CI/CD pipelines reducing deployment time from 25 to 12 minutes and increasing weekly releases by 50%. Achievements include reducing backend API response time by 30ms and frontend load time by 60%, and achieving 20% AWS cost savings through optimization.
Senior Full Stack Developer at Geek-Solutions LLC
October 31, 2020 - July 23, 2025Migrated enterprise AngularJS applications to Angular 9+, reducing technical debt and improving developer velocity. Developed backend microservices in Java and Python integrated with Kafka to process 1.2 million financial events daily. Optimized PostgreSQL and MongoDB databases to reduce query latency and increase throughput. Managed Dockerized deployments on Azure Kubernetes Service across multiple regions enhancing resilience and reducing downtime. Automated test cases improving coverage and cutting manual QA time. Partnered with product owners to deliver fintech features for 80K+ active users. Achievements include increasing platform throughput by 25% and boosting conversion rates by 18%, plus delivering OAuth2.0-based SSO.
Mid-Level Full Stack Developer at Notime AG
March 31, 2016 - July 23, 2025Built Vue.js SPAs supporting 75K+ daily logistics users with real-time updates. Developed backend APIs with Java Spring Boot and Node.js alongside Python scripts for batch processing over 500K daily transactions. Integrated Redis caching, boosting API response times by 300% and reducing DB load by 40%. Deployed Docker microservices on Google Kubernetes Engine with auto-scaling to manage traffic surges. Delivered offline-first PWAs improving mobile engagement. Integrated 10+ third-party logistics APIs expanding delivery partners. Achievements include improving backend transaction speeds by 35ms and reducing cloud hosting costs by 15%.
Senior Mobile Engineer (iOS / Flutter / React Native / Swift) at NHS
April 30, 2025 - July 25, 2025Developed a suite of 6+ mobile applications for clinicians and staff, targeting both iOS and Android platforms using Swift, SwiftUI, and Flutter to ensure coverage across 120+ UK healthcare facilities. Designed and implemented scalable mobile architectures using MVVM and Clean Architecture patterns to improve development speed by 30% and reduce long-term tech debt. Integrated over 20 secure healthcare APIs with Alamofire, enabling real-time patient data access while maintaining GDPR and NHS security standards. Built offline data storage with Realm and Core Data, improving data availability in low-connectivity environments by 98%. Used Combine and RxSwift to manage asynchronous data streams for responsive UI across critical workflows. Managed release pipelines with GitHub Actions and Fastlane automating versioning and App Store submissions. Collaborated with designers and backend developers to ensure consistency across 80+ UI screens. Performed performance audits and memory optimization
Mobile Developer (Flutter / React Native / Android) at Geek-Solutions LLC
October 31, 2020 - July 25, 2025Built and maintained 7 mobile applications for finance and productivity sectors using Flutter and React Native with React and Redux, serving 200,000+ users monthly. Engineered multi-step onboarding and payment flows, increasing first-session completion rate from 62% to 86%. Integrated third-party services such as Stripe, Firebase, and custom REST APIs. Refactored monolithic Android features into Flutter modules, cutting app size by 22% and speeding feature releases by 40%. Implemented 250+ automated tests achieving 90% test coverage and reducing production bugs by 70%. Set up CI/CD with Bitrise and GitHub Actions, increasing deployment frequency and reducing rollback incidents. Analyzed user tickets to prioritize UX fixes, boosting retention by 20%.
Mobile Developer (React Native / Android / iOS Hybrid) at Notime AG
March 31, 2016 - July 25, 2025Designed and developed delivery and logistics apps using React Native with React and Redux supporting 75K+ daily orders across Android and iOS. Implemented offline capability using IndexedDB and local caching ensuring 100% task reliability in low-signal areas. Integrated GPS tracking and geofencing enabling real-time driver monitoring and predictive ETAs. Built 20+ modular UI components with React Native and bridged native Swift/Java code for better animation and hardware access. Collaborated with backend engineers to develop mobile-first APIs reducing payload size by 35% and improving response times. Conducted QA testing with Postman and real devices to ensure cross-platform compatibility. Managed app deployments with certificate renewal and phased rollouts for 100K+ users. Conducted design sprints and field trials collecting feedback to enhance UX.
Senior Mobile Engineer (iOS / Flutter / React Native / Swift) at NHS, England
April 30, 2025 - July 25, 2025Developed a suite of 6+ mobile applications for clinicians and staff on iOS and Android using Swift, SwiftUI, and Flutter, servicing 120+ UK healthcare facilities. Designed scalable architectures using MVVM and Clean Architecture, improving development speed by 30% and reducing technical debt. Integrated 20+ secure healthcare APIs maintaining GDPR and NHS security standards. Built robust offline data storage with Realm and Core Data, achieving 98% availability in low-connectivity environments. Managed over 15 asynchronous data streams via Combine and RxSwift for responsive UIs. Automated release pipelines using GitHub Actions and Fastlane with a 95% success rate. Collaborated with cross-functional teams to ensure UI/UX consistency across 80+ screens. Improved app performance, reducing startup time by 1.5 seconds and crash rates by 40%. Key achievements include launching a patient tracker app used by 10K+ clinicians, increasing workflow efficiency by 35%, and elevating user satisfaction
Mobile Developer (Flutter / React Native / Android) at Geek-Solutions LLC, Estonia
October 31, 2020 - July 25, 2025Built and maintained 7 finance and productivity mobile applications using Flutter and React Native, catering to over 200,000 monthly active users. Engineered complex onboarding and payment flows, boosting first-session completion from 62% to 86%. Integrated Stripe payments, Firebase analytics and notifications, and custom REST APIs. Refactored Android features into 14+ Flutter modules, reducing app size by 22% and improving feature release speed by 40%. Implemented 250+ automated tests, achieving 90% test coverage and reducing bugs by 70%. Created scalable folder structures and design systems, halving onboarding time for new developers. Led CI/CD integration with Bitrise and GitHub Actions, increasing deployment frequency to weekly with fewer rollbacks. Collaborated with support teams to analyze 1,000+ user tickets and prioritize UX fixes, increasing app retention by 20%. Key achievements include increasing daily engagement by 28% and achieving 99.4% crash-free sessions across platform
Mobile Developer (React Native / Android / iOS Hybrid) at Notime AG, Switzerland
March 31, 2016 - July 25, 2025Designed and developed delivery and logistics apps using React Native, supporting 75K+ daily orders on iOS and Android. Implemented full offline capabilities with IndexedDB and local caching, ensuring 100% task reliability in low-signal areas. Integrated GPS tracking and geofencing enabling real-time driver monitoring with 15m accuracy. Built 20+ modular UI components and bridged Swift/Java native code to improve animation and hardware access. Worked with backend engineers on mobile-first APIs reducing payload size by 35% and improving response time by 200ms. Conducted comprehensive QA and real-device testing across multiple OS versions. Participated in design sprints and live field trials to iterate on UX. Managed app deployments including provisioning, certificate renewal, and phased rollout for a user base exceeding 100K. Key achievements include boosting delivery completion rates by 22% and reducing onboarding times by 30% through guided setup flows.
Senior Mobile Engineer (iOS / Flutter / React Native / Swift) at NHS, England
April 30, 2025 - July 25, 2025Developed a suite of more than 6 mobile applications for clinicians and staff supporting both iOS and Android platforms, covering 120+ UK healthcare facilities. Designed scalable architectures using MVVM and Clean Architecture to boost development speed by 30% and reduce tech debt. Integrated 20+ secure healthcare APIs with Alamofire, ensuring GDPR and NHS security compliance. Built offline data storage with Realm and Core Data to increase data availability by 98% in low-connectivity scenarios. Leveraged Combine and RxSwift for managing asynchronous data streams for responsive UIs. Managed release pipelines using GitHub Actions and Fastlane with a 95% success rate. Collaborated daily with designers and backend developers using Figma across 80+ UI screens. Conducted performance audits and memory optimization, reducing startup time by 1.5 seconds and cutting crash rates by 40%. Key achievements include launching a patient tracker app used by over 10,000 clinicians, improving workflow eff
Mobile Developer (Flutter / React Native / Android) at Geek-Solutions LLC, Estonia
October 31, 2020 - July 25, 2025Built and maintained 7 mobile applications for finance and productivity sectors using Flutter and React Native, with 200,000+ monthly active users. Engineered multi-step onboarding and payment flows, improving first-session completion from 62% to 86%. Integrated Stripe for payments, Firebase for analytics and notifications, and custom REST APIs. Refactored Android features into 14+ Flutter modules, reducing app size by 22% and boosting feature release time by 40%. Implemented 250+ automated tests achieving 90% coverage and reduced production bugs by 70%. Created scalable folder structures and shared design systems, doubling collaboration efficiency and halving new developer onboarding time. Led CI/CD setup with Bitrise and GitHub Actions, increasing deployment frequency from monthly to weekly with fewer rollbacks. Analyzed 1,000+ user tickets with support teams to enhance UX, increasing app retention by 20% over 6 months. Key achievements include increasing daily engagement by 28% with
Mobile Developer (React Native / Android / iOS Hybrid) at Notime AG, Switzerland
March 31, 2016 - July 25, 2025Designed and developed delivery and logistics apps using React Native with React and Redux, handling 75,000+ daily orders across both Android and iOS. Implemented full offline capability via IndexedDB and local caching, ensuring 100% task reliability in low-signal areas. Integrated GPS tracking and geofencing with 15-meter accuracy for real-time driver monitoring and predictive ETAs. Built 20+ modular UI components and bridged native Swift/Java code to improve animations and hardware access. Collaborated with backend engineers to create mobile-first APIs, reducing average payloads by 35% and improving response times by 200ms. Conducted thorough QA with Postman and device testing across 12 OS versions. Participated in design sprints and live field trials for UX improvements based on delivery staff feedback. Managed app deployment processes including provisioning, certificates, and phased rollouts for a user base exceeding 100,000. Key achievements include boosting delivery completion ra
Senior PHP Engineer at NHS, England
April 30, 2025 - August 13, 2025Led the redevelopment of the main patient portal with PHP 8 and Laravel, boosting system performance by 50% to support over 1.5 million daily users. Enhanced frontend with Vue.js, reducing page load times by 35%. Optimized MySQL database queries, cutting report generation from 10 to 3 minutes. Developed secure RESTful APIs enabling 30% more third-party integrations. Established CI/CD pipelines with GitLab CI and Docker, reducing deployments by 70% and achieving 99% uptime. Implemented automated data backups and AWS S3 migration, lowering storage costs and improving retrieval speed. Mentored junior engineers, increasing team velocity by 40%. Achieved 99% system availability and saved £200K annually through cloud optimizations.
Senior PHP Developer at Geek-Solutions LLC, Estonia
October 31, 2020 - August 13, 2025Developed high-performance e-commerce platforms using Symfony and Magento, handling over 120K transactions daily across Europe. Improved caching with Redis, decreasing checkout load times from 4 to 1.5 seconds. Built GraphQL APIs with Laravel Lighthouse to reduce data overfetching by 50%. Integrated payment gateways like Stripe and Klarna with 99% success rate. Designed scalable multi-tenant SaaS architecture for 50+ enterprise clients. Increased PHPUnit test coverage from 45% to 90%, lowering bugs by 35%. Implemented Elasticsearch, cutting search latency from 1.2s to 300ms. Automated Jenkins CI/CD pipelines, enabling bi-weekly near-zero downtime deployments. Scaled SaaS user base 5x with 99% uptime and boosted revenue by £1M annually through optimizations.
Senior PHP Backend Engineer at Notime AG, Switzerland
March 31, 2016 - August 13, 2025Created logistics backend systems using PHP 7 with Slim Framework and Vue.js dashboards, improving user interactions and visibility. Developed REST APIs for better dispatch coordination, reducing delivery delays by 25%. Built real-time notification system via PHP WebSocket, enhancing update accuracy by 40%. Optimized PostgreSQL queries to reduce report times from 8 to 2 minutes. Integrated courier APIs to expand service coverage by 10 cities within a year. Automated invoice generation, saving finance team 10 hours weekly. Reduced deployment errors by 60% with Capistrano and Bitbucket Pipelines automation. Led backend refactoring, cutting legacy code by 20% and improving maintainability. Enabled expansion to 10+ cities and cut support tickets by 40% through real-time tracking and frontend improvements.
Senior PHP Engineer at NHS, England
July 1, 2025 - August 22, 2025Led redevelopment of the main patient portal using PHP 8 (Laravel) and Vue.js, achieving a 50% performance boost and supporting over 1.5 million daily users. Optimized MySQL databases, cutting report generation time drastically. Developed secure RESTful APIs enabling 30% more third-party integrations. Implemented CI/CD pipelines reducing deployment times by 70%, and mentored six junior engineers to increase team velocity by 40%. Also managed cloud migration to AWS S3, resulting in significant cost reductions and faster data retrieval.
Senior PHP Developer at Geek-Solutions LLC, Estonia
October 1, 2020 - August 22, 2025Built high-performance e-commerce platforms with Symfony and Magento to handle over 120K transactions daily across Europe. Improved Redis caching to lower page load times. Designed GraphQL APIs and integrated multiple payment gateways, ensuring a 99% payment success rate. Constructed scalable multi-tenant SaaS architecture for 50+ clients. Automated testing with PHPUnit, raising code coverage and reducing bugs. Implemented Elasticsearch to improve product search latency and managed Jenkins CI/CD pipelines for bi-weekly deployments with near-zero downtime.
Senior PHP Backend Engineer at Notime AG, Switzerland
March 1, 2016 - August 22, 2025Developed logistics backend systems and customer/admin dashboards using PHP 7 (Slim Framework) and Vue.js, boosting user interaction and visibility. Created REST APIs that improved dispatch coordination and reduced delivery delays by 25%. Built PHP WebSocket-based real-time notifications enhancing delivery updates. Optimized PostgreSQL queries and integrated courier APIs expanding city coverage. Automated invoice generation and deployed with Capistrano and Bitbucket Pipelines, lowering deployment errors and refactoring legacy codebase for maintainability.
Education
Bachelor of Computer Science at National University of Singapore
January 1, 2010 - December 31, 2014Bachelor of Computer Science at National University of Singapore
January 1, 2010 - December 31, 2014Bachelor of Computer Science at National University of Singapore
April 1, 2010 - September 30, 2014Bachelor of Computer Science at National University of Singapore
April 1, 2010 - September 30, 2014Bachelor of Computer Science at National University of Singapore
April 1, 2010 - September 30, 2014Bachelor of Computer Science at National University of Singapore
April 1, 2010 - September 30, 2014Bachelor of Computer Science at National University of Singapore
April 1, 2010 - September 1, 2014Bachelor of Computer Science at National University of Singapore
April 1, 2010 - September 1, 2014Qualifications
Industry Experience
Healthcare, Software & Internet, Government, Professional Services, Financial Services, Transportation & Logistics, Retail
Skills
Experience Level
Expert
Expert
Expert
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Intermediate
Intermediate
Intermediate
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