Johan Stephen Raj
Chelmsford
Summary
Experienced Software Engineer with over 6 years in full-stack development, specialising in React, Flutter, React Native, Next.js, and Angular for building high-performance, responsive applications. Skilled in TypeScript, GraphQL, Node.js, ASP.NET, C#, Django, and Java. Proficient in microservices architecture with Docker and Kubernetes, and scalable cloud services using AWS, Azure, and GCP Functions. Expertise in CI/CD pipelines with Azure DevOps, Jenkins, and GitHub Actions, alongside infrastructure provisioning with Terraform.
Strong background in automation, delivering enterprise-scale process improvements with Blue Prism RPA to streamline workflows and reduce manual effort.
Founder and lead developer of “UrbizFlow”, an end-to-end SaaS platform designed, architected, and deployed independently — covering everything from AI-powered proposal and invoice generation to UI/UX design, architecture, automation, and deployment — showcasing full lifecycle ownership and product delivery.
Passionate about agile methodologies, DevSecOps, and mentoring peers, with a proven track record of improving performance, reducing downtime, and staying ahead of evolving tech trends.
Overview
8
8
years of professional experience
Work History
Senior Application Developer
NHS Foundation Trust
02.2024 - Current
Delivered healthcare solutions for NHS NNUH, enhancing patient care and boosting application efficiency. Achieved a 30% reduction in deployment time and improved system performance by 25%. Spearheaded automation of critical processes using Blue Prism, streamlining workflows and reducing manual intervention by 35%. Demonstrated technical proficiency in Azure DevOps, ASP.NET, VB.NET, Node.js, WordPress, PHP, C#, JavaScript, SQL, and Blue Prism RPA. Created optimized CI/CD pipelines, enhancing deployment speed by 40%. Focused on quality and performance, reducing downtime by 20% and increasing response times by 15%. Consistently developed clean code with 95%+ quality scores. Expanded expertise across multiple languages and frameworks, increasing team productivity by 10%, and leading feature deployment to enhance user experience and system reliability by 20%.
Software Engineer
Globaldata
03.2023 - 02.2024
Spearheaded front-end automation, optimising development using HTML, CSS, and JavaScript. Led in-house projects like an automated localhost system, enhancing delivery time. Developed an AI-driven project tracking system, integrating front-end and back-end technologies. Leveraged AI for dynamic web optimization, increasing page views by 30%, and implemented adaptive SEO strategies. Introduced ML-based code analysis tools to improve code quality. Enhanced server-side logic with Node.js, developing scalable APIs for improved efficiency.
Front-end Engineer
New Statesman Media Group
10.2021 - 03.2023
- Worked in an Agile environment, optimizing timelines and resources. Designed usability-focused layouts, ensured cross-browser compatibility, and developed reusable components from Figma designs. Built HTML Emailing web apps with React and WordPress, integrated Google SDKs, and developed custom plugins. Collaborated internationally on News media solutions and created a newsletter app using Pardot.
Front End Developer
247.sk
11.2019 - 10.2021
- Designed and updated layouts to enhance usability and performance. Collaborated with client services, sales, and design teams to align projects with business goals. Recommended new technology integrations to improve system capabilities. Followed SDLC best practices in an Agile environment for rapid and iterative solutions. Developed user-friendly web forms with validation and error handling. Provided user support and training to improve proficiency. Conducted unit testing for browser functionality, and coordinated content updates with the digital content manager.
Junior Front-end developer
Emerald Infotech
09.2017 - 10.2019
- Developed responsive websites with CSS, HTML, Vue.js, and React Bootstrap, ensuring optimal cross-device experiences. Created front-end solutions with React, Axios, and JavaScript for dynamic interfaces. Built an inventory application for multiple stores using HTML, JavaScript, and SQL. Collaborated with clients on UI design and wireframes, aligning with project goals. Reviewed program specifications and applied Python and Django for MVC-based web applications. Enhanced web design skills using HTML, CSS, Python, and JavaScript to create comprehensive and visually appealing sites.
Education
Bachelor of Science - Electronics and communication
06-2018
Master of Science - Informatics
05-2021
Skills
Front-End Development
- Proficient in HTML5, CSS3, SCSS, and JavaScript (ES6)
- Experienced with modern frameworks and libraries: React, Angular, Vuejs, Nextjs, React Native, Flutter
- Skilled in responsive design, cross-browser compatibility, accessibility standards (WCAG), and UI/UX best practices
- Familiar with front-end build tools and bundlers: Webpack, Vite, Babel, and modern state management (Redux, MobX, Zustand)
Back-End Development
- Strong expertise in server-side technologies: Nodejs, ASPNET Core, VBNET, Django, Ruby on Rails, Java (Spring Boot), PHP, Dart
- Deep understanding of RESTful API design, GraphQL, gRPC, and microservices architecture
- Hands-on experience with authentication/authorization (OAuth2, JWT, SAML, OpenID Connect) and API security
Automation & RPA
- Designed and deployed automation of enterprise workflows using Blue Prism RPA and UI/Process Automation
- Integrated automation into legacy and non-API systems, improving efficiency and reducing manual work
- Knowledge of Power Automate, UiPath, and scripting with Python/JavaScript for automation
Testing & Quality Assurance
- Experienced with unit, integration, and end-to-end testing using Jest, Mocha, Jasmine, NUnit, xUnit, Cypress, Playwright, Puppeteer, and Selenium
- Knowledge of TDD/BDD practices (Cucumber, SpecFlow) ensuring high-quality, maintainable code
- Performance testing (JMeter, k6) and security testing (OWASP ZAP)
Database Management
- Skilled in relational databases: SQL Server, MySQL, PostgreSQL, Oracle
- Proficient with NoSQL databases: MongoDB, Redis, Cassandra, Firestore
- Strong knowledge of database design, indexing, optimization, stored procedures, and transactions
- Experience with data warehousing (Snowflake, BigQuery) and ETL pipelines
DevOps & Cloud Engineering
- Proficient in CI/CD pipelines using Azure DevOps, Jenkins, GitHub Actions, GitLab CI
- Hands-on with containerization and orchestration: Docker, Kubernetes, Helm
- Cloud expertise in AWS, Azure, and GCP (IaaS, PaaS, SaaS)
- Skilled in Infrastructure as Code (Terraform, CloudFormation, Ansible)
- Monitoring & logging: Prometheus, Grafana, ELK Stack, Splunk
Architecture & Design
- Expertise in designing scalable, distributed, event-driven, and serverless architectures
- Strong grasp of design patterns, SOLID principles, Domain-Driven Design (DDD), and Clean Architecture
- Knowledge of messaging systems (Kafka, RabbitMQ, Azure Service Bus)
- Familiar with enterprise architecture frameworks (TOGAF, Zachman)
Version Control & Collaboration
- Advanced Git workflows (feature branching, trunk-based development, GitFlow)
- Experienced with GitHub, GitLab, Bitbucket, and code review practices
- Strong understanding of Agile methodologies (Scrum, Kanban, SAFe) and collaboration tools (Jira, Confluence, Azure Boards)
Security & Compliance
- Understanding of application security (OWASP Top 10, SAST, DAST)
- Experience implementing secure coding practices, encryption, and compliance (GDPR, HIPAA, ISO27001)
- Knowledge of identity and access management (IAM) and zero-trust security
Leadership & Mentoring
- Led cross-functional teams to deliver enterprise-scale projects
- Mentored junior developers, conducted code reviews, and established coding standards
- Experience in technical interviews, recruitment, and knowledge-sharing sessions
Accomplishments
- Completed courses in React Design Patterns, JavaScript, Node.js, Java, SpringBoot, Python, Django, Selenium, UI/UX designs, PHP and ASP.NET from LinkedIn, Udemy, hackerrank and Microsoft. Skilled in React Redux and Flutter development. Documented and resolved UI issues, enhancing user experience, and improved performance by adopting a modular JavaScript approach resulting in award for best employee of the month. Contributed actively to projects on GitHub.
Timeline
Senior Application Developer - NHS Foundation Trust
02.2024 - Current
Software Engineer - Globaldata
03.2023 - 02.2024
Front-end Engineer - New Statesman Media Group
10.2021 - 03.2023
Front End Developer - 247.sk
11.2019 - 10.2021
Junior Front-end developer - Emerald Infotech
09.2017 - 10.2019
Sathyabama University - Bachelor of Science, Electronics and communication
Technical University of Kosice - Master of Science, Informatics