Дмитро

Dmytro Kornieiev
S E N I O R F U L L S T A C K DE V ELO P ER
[відкрити контакти](див. вище в блоці «контактна інформація») | [відкрити контакти](див. вище в блоці «контактна інформація»)

SUMMARY
Results-driven Senior Full Stack Developer with 4+ years of experience building scalable web applications
across Cybersecurity, PropTech, and enterprise domains. Expertise in modern JavaScript/TypeScript
ecosystems including React.js, Next.js, NestJS, and Node.js. Proven track record of delivering cloud-native
solutions on AWS infrastructure with containerized deployments using Docker and Kubernetes. Strong focus
on code quality, test-driven development, and CI/CD automation. Experienced in architecting RESTful and
GraphQL APIs, implementing secure authentication systems, and optimizing application performance.

SKILLS
Programming Languages: JavaScript (ES6+), TypeScript, SQL
Frontend Technologies: React.js, Next.js, Redux, Zustand, Material-UI, Tailwind CSS, HTML5, CSS3,
Responsive Design
Backend Technologies: NestJS, Node.js, Express.js, REST APIs, GraphQL, WebSockets, Microservices
Architecture
Databases: PostgreSQL, MongoDB, MySQL, Redis
Testing & Quality Assurance: Jest, Cypress, Playwright, React Testing Library, Unit Testing, Integration
Testing, E2E Testing
DevOps & Cloud: AWS (EC2, S3, Lambda, RDS, CloudFront, ECS), Docker, Kubernetes, Terraform
CI/CD & Version Control: GitHub Actions, Jenkins, GitLab CI, Git, GitHub
Authentication & Security: JWT, OAuth2, Auth0, bcrypt, HTTPS/SSL, CORS, Security Best Practices
Other Tools: Webpack, Vite, npm, Yarn, Postman, Swagger, Jira, Agile/Scrum

EXPERIENCE
BN-Digital | Senior Full Stack Developer | November 2024 – October 2025
Project: InsurePro Claims Processing System
A digital claims management platform automating insurance claim submissions, assessment, and
approval workflows while integrating with third-party verification services and payment gateways.
Technologies Used: React.js, Redux, Material-UI, Formik, Yup, Node.js, Express.js, REST APIs,
PostgreSQL, MongoDB, JWT, Two-Factor Authentication, Jest, Cypress, AWS (EC2, S3, RDS, SES), Docker,
GitHub Actions
Key Responsibilities & Accomplishments:
Developed multi-step claim submission form with React.js, Redux, and Formik supporting complex
validation logic, photo uploads, and real-time form state management
Built RESTful API with Express.js and NestJS implementing claim workflows, status tracking,
automated notifications, and business rule engine for processing 5,000+ claims monthly
Implemented document management system with secure access controls, versioning, and
automatic backup strategies supporting multiple file formats
Created automated email notification system and integrated third-party APIs for identity
verification, damage assessment, and fraud detection reducing fraudulent claims by 55%
Developed comprehensive admin dashboard with Material-UI featuring claim review interfaces,
approval workflows, analytics dashboards, and real-time reporting capabilities
Deployed application on AWS EC2 with Docker containerization, configured load balancing, and
established CI/CD pipeline with GitHub Actions achieving 95% E2E test coverage using Cypress
Ciklum | Full Stack Developer | 2023 – August 2024
Project: PropConnect Real Estate Management System
An end-to-end property management platform connecting landlords, tenants, and property managers
with features including lease management, maintenance tracking, payment processing, and document
storage.
Technologies Used: React.js, TypeScript, Redux Toolkit, Tailwind CSS, React Hook Form, Node.js,
Express.js, REST APIs, NestJS, MongoDB, PostgreSQL, JWT, OAuth2, Jest, React Testing Library, Cypress,
AWS (EC2, S3, RDS, CloudFront), Docker, Jenkins
Key Responsibilities & Accomplishments:
Developed responsive dashboard using React.js, TypeScript, and Tailwind CSS serving 15,000+
active users monthly with intuitive navigation and seamless mobile experience
Built comprehensive REST API with Express.js handling property listings, lease agreements,
maintenance requests, tenant communications, and financial transaction processing
Implemented real-time notification system for maintenance requests using WebSockets enabling
instant communication between tenants and property managers
Created automated rent payment reminder system reducing late payments by 40%, integrated
Stripe API for secure payment processing with PCI compliance and recurring billing support
Optimized MongoDB aggregation pipelines and implemented intelligent caching strategies
reducing property search query time by 70% and improving overall application performance
Deployed application on AWS EC2 with Docker containers, implemented CI/CD using Jenkins, and
wrote comprehensive unit and integration tests achieving 85% code coverage

Project: CropAnalytics Precision Farming Platform
An IoT-integrated platform providing farmers with data-driven insights for crop management,
including soil analysis, weather forecasting, irrigation scheduling, and yield prediction.
Technologies Used: Next.js, React.js, TypeScript, Zustand, Material-UI, Chart.js, NestJS, Node.js,
GraphQL, REST APIs, PostgreSQL, MongoDB, JWT, OAuth2, Jest, Playwright, AWS (Lambda, EC2, S3,
RDS, API Gateway), Docker, Kubernetes, GitHub Actions
Key Responsibilities & Accomplishments:
Built interactive data visualization dashboard with Chart.js and Material-UI displaying real-time
sensor data from 1,000+ IoT devices with customizable views, time-range filters, and alerting
system for critical parameters
Developed GraphQL API using NestJS with optimized resolvers, DataLoader pattern for batch
loading, and field-level caching reducing over-fetching by 60% and improving mobile app
performance significantly
Implemented IoT data ingestion pipeline handling 10M+ data points daily from temperature,
humidity, soil moisture, and pH sensors with data validation and anomaly detection
Created predictive models integration layer consuming ML APIs for yield forecasting, pest
detection, optimal harvest timing, and disease prevention achieving 85% accuracy rate across
multiple crop types
Designed responsive mobile-first interface with offline-first architecture using service workers,
IndexedDB for local data persistence, and background sync ensuring accessibility in rural areas
with limited connectivity
Built automated irrigation scheduling system with smart algorithms analyzing weather forecasts,
soil moisture data, crop water requirements, and historical patterns reducing water usage by 30%
Developed field mapping feature with geolocation integration allowing farmers to visualize crop
zones, track field boundaries, and associate sensor data with specific locations using interactive
maps
Deployed Kubernetes cluster on AWS EKS with horizontal pod auto-scaling, implemented
serverless data processing using Lambda for real-time analytics, and established comprehensive
testing strategy achieving 88% backend code coverage with Jest
Secure Locks | Full Stack Developer | August 2021 – September 2022
Project: CyberShield Identity Access Management Platform
A comprehensive identity and access management (IAM) solution designed for enterprise clients to
secure their digital infrastructure and manage user permissions across multiple cloud environments.
Technologies Used: Next.js 14, React.js, TypeScript, Zustand, Material-UI, React Query, NestJS,
Node.js, GraphQL, REST APIs, Express.js, PostgreSQL, Redis, OAuth2, JWT, Multi-Factor Authentication
(MFA), Jest, Playwright, Cypress, AWS (ECS, RDS, ElastiCache, CloudFront, S3), Docker, Kubernetes,
GitHub Actions
Key Responsibilities & Accomplishments:
Architected and developed microservices-based authentication system with NestJS handling 500K+
daily authentication requests with 99.9% uptime and sub-100ms response times
Implemented role-based access control (RBAC) with granular permissions management, policy
engine, and attribute-based access control supporting hierarchical organizational structures
across 50+ enterprise clients
Built real-time audit logging system using WebSockets and GraphQL subscriptions for security
compliance tracking with ISO 27001 and SOC 2 standards, generating detailed forensic reports
Optimized database queries with PostgreSQL indexing strategies and implemented Redis caching
for session management reducing authentication response time from 400ms to 85ms
Developed secure API gateway with rate limiting, request validation, automated threat detection,
and anomaly detection algorithms preventing 10,000+ suspicious login attempts monthly
Deployed containerized services on AWS ECS with auto-scaling, integrated OAuth2 providers
(Google, Microsoft Azure AD, Okta) for enterprise SSO, and implemented comprehensive E2E
testing with Playwright

EDUCATION
Lutsk National Technical University
Management of innovation activity (Master Degree)

LANGUAGES
English - B2
Ukrainian - Native
Russian - Native
Polish - A2