Certified Full Stack Developer | Java, SpringBoot , React, AWS, GCP
I specialize in building scalable, cloud-native applications using Java, Spring Boot, React, and Angular. With hands-on experience architecting microservices on AWS and GCP, I deliver robust solutions for global clients. At ReArck Solutions, I design and deploy enterprise-grade systems, integrating modern DevOps tools like Docker, Maven, and CI/CD pipelines.
Tech Stack Highlights:
Backend: Java, Spring Boot, REST APIs, Microservices , Nodejs,Python .
Frontend: React.js, Angular, JavaScript, TypeScript ,Bootstrap ,Tailwind.
Cloud & DB: AWS & GCP (Certified), DynamoDB, PostgreSQL, MongoDB, SQL,Nosql
DevOps: Docker, Maven, CI/CD , Github Actions , Terraform ,Jenkins
Let’s connect if you need reliable, high-impact software development with a cloud-first mindset.
Web Development
Back-End Development
Front-End Development
Full-Stack Development
Java
SQL
NoSQL Database
AWS Lambda
React
Angular
Spring Boot
Google Cloud Platform
Amazon Web Services
NodeJS Framework
Python
Arun kumar S.
Indore, India
$25/hr
4.9
18 jobs
Java + AWS + Data Engineering
Technical Architect/Solution Architect
15 Years of experience working with Databricks, Spark, BigData, Java, JSP, Springboot, Microservices and Mifos Installation
Understanding of software development workflows and toolchains like Kubernetes, Microsoft Azure, and Jenkins
Knowledge of how to use tools to monitor operations and enhance performance
Familiarity with security and compliance procedures
Experience with open-source software provisioning with Ansible
Proficiency in container frameworks like Docker and Kubernetes
Mastery in the use of infrastructure as code (IaC) tools like Terraform and Ansible
Technology Stack on which I have worked
Java Frameworks: Spring, Struts, Hibernate, JPA, Spring Security, Spring MVC, Spring Boot.
Java EE Stack: Web services, XML, JAXB, JavaFX
Web Technologies: HTML, CSS, JQuery, JSON , Angular 5/6/7/8, ReactJS
Application Servers: Tomcat, JBoss, Glassfish, AWS, AWS Lambda, Microsoft Azure, Google Cloud
Database: Oracle, MySQL , Postgres ,MongoDB, N0sqlcouch DB
Operating System: Ubuntu, Linux, Windows
Apache Kafka
Amazon Web Services
Azure DevOps
DevOps
Kubernetes
Docker
Jenkins
Terraform
Ansible
Spring Boot
RESTful API
AngularJS
Microservice
Java
J2EE
Punit Kumar B.
Indore, India
$15/hr
4.9
26 jobs
Experience & Track Record:
✅ 10+ Years of Experience — Delivering end-to-end digital products that scale
🏆 100+ Projects Delivered — 20 on Upwork, 80+ for global clients
💯 100% Job Success Rate — Consistent client satisfaction & repeat business
⏰ 2,400+ Hours on Upwork — Trusted by teams across the US, Europe & APAC
🌍 Strong Portfolio — Websites, Mobile Apps & Enterprise Platforms
I specialize in building scalable SaaS products and full-stack applications that are fast, reliable, and easy to maintain. My work spans product architecture, cloud development, API design, data engineering, and AI integration across web and mobile platforms.
What I Do Best:
⚙️ Solution Architecture & Technical Planning
💻 Full-Stack Web & Mobile Development
🔗 API Design & Third-Party Integrations
📊 Data Engineering & Analytics Enablement
☁️ Cloud-Native Development & DevOps Automation
⚡ Performance, Scalability & Optimization
Domain Expertise:
💡 SaaS & Multi-Tenant Platforms
💳 Fintech & FinOps Workflows (billing, reconciliation, subscriptions)
🛒 E-Commerce & Marketplaces
📈 Data Integration & BI Dashboards
🤖 Process Automation for Ops, Sales & Support
✉️ CRM, MarTech & Internal Tools
Tech Stack:
✅ Languages & Frameworks: JavaScript, TypeScript, React, Next.js, Node.js (Express, NestJS), Python (FastAPI, Django), Java (Spring Boot)
✅ SQL Databases: PostgreSQL, MySQL
✅ NoSQL: MongoDB, Redis, Elasticsearch
✅ Cloud: AWS, GCP, Azure
✅ Containers & IaC: Docker, Kubernetes, Terraform
✅ CI/CD: GitHub Actions, GitLab CI, CircleCI
✅ Data Tooling: Airflow, dbt, Kafka
✅ Analytics Warehouses: Snowflake, BigQuery, Redshift
✅ Messaging & Queues: SQS, RabbitMQ, Kafka
✅ Testing: Jest, PyTest, Cypress, Playwright
✅ Monitoring & Logging: Prometheus, Grafana, ELK, Datadog
✅ Auth: OAuth2, OpenID Connect, JWT, Auth0
✅ Payments: Stripe
✅ Mobile: React Native
💼 Why Clients Hire Me
I bridge business context with engineering depth, translating ideas into robust architectures that evolve with growth. From MVPs to full-scale systems, I deliver clean, maintainable solutions that perform.
💬 Ready to discuss your next build or migration?
Let’s talk about your goals and map the smartest path forward.
Search me with below keyword:
[SaaS Development, Full-Stack Developer, Software Architect, Product Engineering, API Development, Web Application Development, Cloud Application Development, MVP Development, Software Modernization, System Design, Microservices Architecture, DevOps Engineer, Backend Development, Frontend Development, JavaScript, TypeScript, React, Next.js, Node.js, Express, NestJS, Python, FastAPI, Django, Java, Spring Boot, PostgreSQL, MySQL, MongoDB, Redis, Elasticsearch, REST APIs, GraphQL, React Native, Stripe API, OAuth2, Auth0, JWT]
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