Hi, I'm Valentin

Full Stack Developer

I build high-performance web applications that help businesses scale and improve operational efficiency. Bridging the gap between complex technical challenges and seamless user experiences.

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About Me

Valentin Ispas - Full Stack Web Developer

With 5 years of full-stack engineering experience, I partner with companies to solve complex technical challenges and deliver robust, scalable software. Whether it involves optimizing backend performance, designing seamless frontend architectures, or untangling complex business logic, I focus on building reliable solutions that drive true business value and operational efficiency.

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Featured Projects

E-Commerce Cloud Platform

A German software company providing ERP solutions for small and medium-sized businesses, with a strong focus on eCommerce integration, order management, accounting and logistics.

  • ✦Architected an asynchronous processing pipeline to mitigate external API quota limits, reducing rate-limit errors by 100% and enabling reliable processing of 50k+ operations/day
  • ✦Designed and implemented event-driven workflows using RabbitMQ and AWS SQS, ensuring reliable message delivery and preventing loss of critical business events
  • ✦Increased system throughput by 2–3x by transitioning to async workflows and leveraging Node.js parallel processing patterns
  • ✦Reduced external API calls by ~40% using Redis caching while improving response times and overall system stability
  • ✦Improved data consistency and performance by implementing database transactions and indexing strategies, reducing failed processes by ~50% and query response times by ~30–50%
JavaScriptTypeScriptNode.jsNestJSReactPostgreSQLRabbitMQRedisDockerKubernetesGrafanaJestAWS LambdaSQSGitLab

Government Data Management Platform (Frontend)

Platform for processing and managing official company publications data.

  • ✦Developed and maintained complex Angular components for visualizing and managing large datasets of Swiss company publications
  • ✦Improved UI performance and responsiveness when handling high-volume data by optimizing change detection and implementing efficient state management patterns
  • ✦Built data-driven interfaces enabling users to filter, search, and process large sets of company records, improving usability and operational efficiency
  • ✦Integrated frontend with backend APIs for real-time data processing workflows, ensuring accurate and consistent data representation
  • ✦Enhanced user experience by reducing load times and improving interaction speed across key application flows
AngularTypeScriptRxJSGraphQL

My Skills

Here are a few technologies I've been working with recently.

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Languages

JavaScript
TypeScript
🎨

Frontend

Angular
React
Tailwind CSS
⚙️

Backend

Node.js
Express
REST
GraphQL
🗄️

Databases

PostgreSQL
MongoDB
Redis
☁️

Cloud & DevOps

Docker
Kubernetes
AWS Lambda
GitLab
Git
📡

Messaging & Testing

SQS
RabbitMQ
Grafana
Jest

Get In Touch

I'm currently open to new opportunities. Whether you have a technical challenge, a project proposal, or just want to connect, I'd love to hear from you!

Not a fan of forms? Grab 15 minutes on my Calendly or connect on LinkedIn.