![Cristian Daniel Dumitrescu](https://jobicy.com/react/themes/app/images/avatar.jpg) Cristian Daniel Dumitrescu # Senior Full Stack Engineer Actively looking · Member since 30 Oct 2025 [Message](https://jobicy.com/dashboard-page.md) ShareLocationRomaniaDesired salaryfrom 30 USD/hourlyWork preferenceFull TimeExperience levelNot set * [Overview](#overview) * [Portfolio 0](#portfolio) * [Services 0](#services) ## About Professional summaryI build things that work — from Java and Node.js backends to React and Angular frontends to AI-powered automation. With over 8 years of experience, I deliver platforms that scale, automate workflows, and integrate with ERP, CRM, and e-commerce systems. I connect engineering, product strategy, and business impact, helping organizations in finance, tax compliance, and retail industries achieve efficiency, accuracy, and operational excellence. In my current role as a Senior Software Engineer at Qualysoft, I lead the design and development of microservices-based SaaS platforms, focusing on AI-powered document processing for financial services and tax compliance. I have successfully improved system performance, user experience, and operational efficiency by implementing modern frontend frameworks, APIs, and cloud-native technologies. Previously, I worked at Concept24 where I developed cloud-based e-commerce integration platforms and internal business analytics tools. I have extensive experience with Java/Spring Boot microservices, Angular and React dashboards, and integrating ERP and CRM systems. My work has consistently enhanced transaction speed, data accuracy, and deployment reliability. I am skilled in containerization, orchestration, and infrastructure automation using Docker, Kubernetes, Terraform, and AWS services. I also emphasize quality through comprehensive testing strategies and mentoring team members on best practices in software design and architecture. I am passionate about leveraging AI and automation to improve workflows and reduce manual effort, demonstrated by my use of ChatGPT APIs and RAG vector search to enhance document classification and processing accuracy. I thrive in collaborative environments, working closely with product managers, QA, and DevOps teams to deliver impactful solutions on time. My technical expertise spans multiple programming languages, frameworks, databases, cloud platforms, and DevOps tools. I continuously seek to expand my knowledge and contribute to scalable, maintainable, and secure software systems that drive business success. ## Skills 27 capabilities[Agile](https://jobicy.com/talent/agile.md)[Angular](https://jobicy.com/talent/angular.md)[Apache Maven](https://jobicy.com/talent/apache-maven.md)[AWS S3](https://jobicy.com/talent/aws-s3.md)[Bootstrap](https://jobicy.com/talent/bootstrap.md)[CI CD](https://jobicy.com/talent/ci-cd.md)[Cypress](https://jobicy.com/talent/cypress.md)[Docker](https://jobicy.com/talent/docker.md)[Git](https://jobicy.com/talent/git.md)[GitHub](https://jobicy.com/talent/github.md)[Grafana](https://jobicy.com/talent/grafana.md)[Java](https://jobicy.com/talent/java.md)[Jira](https://jobicy.com/talent/jira.md)[Junit](https://jobicy.com/talent/junit.md)[Mentoring](https://jobicy.com/talent/mentoring.md)[Microservices](https://jobicy.com/talent/microservices.md)[MySQL](https://jobicy.com/talent/mysql.md)[NoSQL](https://jobicy.com/talent/nosql.md)[OOP](https://jobicy.com/talent/oop.md)[PostgreSQL](https://jobicy.com/talent/postgresql.md)[React](https://jobicy.com/talent/react.md)[Redis](https://jobicy.com/talent/redis.md)[Redux](https://jobicy.com/talent/redux.md)[SaaS](https://jobicy.com/talent/saas.md)[Spring Boot](https://jobicy.com/talent/spring-boot.md)[TDD](https://jobicy.com/talent/tdd.md)[TypeScript](https://jobicy.com/talent/typescript.md) ## Experience Career history ### Senior Software Engineer · Qualysoft Jan 2022 – PresentLed the design and development of a microservices-based SaaS platform for banks, accounting, and tax firms, processing 100,000+ documents/month including invoices, tax forms, and contracts. Built Angular 18 and React frontends with advanced state management, lazy loading, and responsive UI, improving load times by 8% and enhancing user adoption. Implemented REST and GraphQL APIs, reducing response latency by 25% and enabling modular service scaling. Developed AI-assisted workflows using ChatGPT APIs and RAG vector search, improving document classification accuracy by 30% and reducing manual review effort by 20%. Migrated legacy monolithic services into microservices, cutting maintenance costs by 30% and accelerating CI/CD deployment cycles. Containerized services with Docker/Kubernetes and automated deployments with Terraform/CloudFormation, ensuring cloud consistency and reliability. Optimized system throughput with Redis caching and Kafka queues, improving data retrieval performance by 40%. Mentored engineers on Java design patterns, microservices architecture, cloud-native development, and AI integration, boosting team efficiency by 12%. Partnered with product managers, QA, and DevOps teams to define roadmaps, prioritize features, and deliver releases on time. Implemented security best practices, including input validation, role-based access control, and secure API design, improving compliance for enterprise clients. ### Software Engineer · Concept24 Jul 2016 – Dec 2021Developed Java/Spring Boot microservices supporting 50,000+ monthly transactions, integrating ERP (SAP) and CRM (Salesforce) systems. Built dynamic Angular and React dashboards with TypeScript, improving page load times by 12% and enabling real-time analytics for operational teams. Designed REST and GraphQL APIs and modular services, improving maintainability and enabling rapid feature expansion. Implemented caching and message queues with Redis and Kafka, improving throughput by 25% and reducing latency. Optimized MySQL/PostgreSQL databases and queries, improving transaction speed and scalability. Integrated AI-assisted document parsing and automated data extraction, improving invoice/order accuracy by 18% and reducing manual review effort. Automated deployments and managed cloud infrastructure with Docker, Kubernetes, and AWS, decreasing deployment errors by 40% and improving uptime to 99.5%. Implemented logging, monitoring, and error-handling frameworks, ensuring operational reliability. Developed backend services to collect, aggregate, and analyze sales, inventory, and order data from multiple sources for retail and wholesale clients. Built interactive dashboards in Angular and React, with charting and reporting tools for business users, improving decision-making speed by 20%. Developed data pipelines and ETL processes, integrating transactional data into reporting modules, improving data reliability and consistency. Applied unit, integration, and end-to-end testing with JUnit, Mockito, and Cypress, increasing test coverage and reducing production defects. Collaborated with product owners and stakeholders to define requirements, prioritize features, and deliver 6 major releases on schedule. ## Education Learning history ### University of Bucharest Oct 2012 – Jul 2016Bachelor of Computer Science This professional hasn’t added portfolio projects yet. This professional hasn’t listed any services yet.