Hire the Best Groovy Developers & Programmers
Mumbai, India
I am a senior software developer and architect (Total- 21 Yrs.) in Java/J2ee, Python, Rest API, SOAP API, javascript, OAuth, SSO, React, Redux, Angular, Kafka, SpringBoot, JPA, Cloud, AWS, Azure, Private cloud, JBPM, n8n, Oracle BPM, JMS, Hibernate, Struts, Spring Batch, ESB, Base44, Playwright, Selenium, JavaFX, Lisp, Prolog, Weka , OpenAI, Different Web as well as Application Servers, different Operating Systems and DBMS Tools, SQL, NoSQL, PostgreSQL, Mongo, Cassandra, MYSQL, Oracle, Supabase, AI, NLP, OpenAI, agent development, Wordpress, php , CI/CD, Agile and various open-source tools, technologies and frameworks. Some of the domains I have worked on are Banking, finance, Trade, Crypto, HR, Insurance, Learning, NLP, Healthcare, System architecture, Developers Tooling, Document management, AI, DevOps, Cloud, GCP, Hubspot, Quickbook, PandaDoc, etc. ********************************************************************* Experience Summary: Freelancing || Freelancing || Present Toyow, Mumbai || Solution Architect || Sep 24 to JAN 25 JPMorgan, Mumbai || Vice President || Jun 15 to July 24 and May 10 to Jun 13 || (Around 12 Yrs.) Deloitte, Mumbai || Senior Consultant/Specialist Senior || Jun 13 to Jun 15 HCL Technologies || Onsite/Offshore Dev lead || Sep 06 to May 10 Birla Soft Ltd || Software Engineer || Jan 06 to Sept 06 GIIT, Gr. Noida || Developer || Feb 05 to Oct 05 ************************************************************************* Some of the applications are as below which I have developed/contributed. - Document generation system - Online translation system using NLP - Library management system - HRMS System - Networking system - Tools for Developer and Operate to build and deploy their applications. - Workflow as a service - Workflow Platform for Mutual Fund NAV processing (Fund accounting) - Prediction analysis for SLA miss. - A real time dashboard for fund processing - Messaging Platform supporting MQ, SFTP, REST, Kafka, FIX, - Trade instruction manager - Customer support system for Bank operators - Platform for Tokenization Assets using Blockchain - A social Media application - A insurance management Platform - Applications developed on Base44 - Loan record reports - OCR for healthcare reports and data processing. - ChatBot for Patient enquiry - Coin analysis using AI (openAPI integration)
- Java
- Spring Framework
- Python
- Apache Kafka
- Cloud Computing
- AWS Application
- Spring Boot
- REST API
- React
- Angular
- jBPM
- Microservice
- PHP
- Next.js
- Drools
- Mule
- Solution Architecture
- Web Application Development
- Full-Stack Development
- Back-End Development
Surat, India
🚀 Technical Lead & Senior Engineer | 2,200+ Upwork Hours | 100% Job Success I don't just write code; I design clean architectures and take total technical ownership of your product. I am a Technical Lead and Senior Full-Stack Engineer with over 6 years of experience building high-performance web applications and complex API networks. With a flawless 100% Job Success Rate across 2,200+ hours on Upwork, I specialize in bridging heavy enterprise backend ecosystems with modern, intelligent automation. ⚡ Core Architecture & Integration Expertise: • 🤖 AI & LLM Integration: Embedding OpenAI, Anthropic, or Gemini APIs for secure context retrieval, automated data workflows, and intelligent feature layers. • 🔌 Custom API Architecture: Designing secure, high-throughput RESTful and GraphQL API gateways from scratch using Java (Spring Boot) and Node.js/Express. • 🔄 Resilient Third-Party Systems: Orchestrating fault-tolerant integrations with webhooks, external CRMs, and payment gateways (Stripe, PayPal) with clean failover handling. • 📊 Real-Time Streams & UI: Leveraging WebSockets for live, low-latency data dashboards built on high-performance Angular and React.js frontends. 🛠️ The Technical Toolkit: • Backend: Java, Spring Boot, Node.js, Express.js, Groovy Grails, Gradle, WebSockets • Frontend: Angular, React.js, JavaScript (ES6+), HTML5, CSS3, SASS/LESS, Bootstrap • Databases & Tools: MySQL, MongoDB, PostgreSQL, Git, Postman, Jira 💎 The Senior Standard I Bring: • Logic-UI Separation: I isolate core computations from the front-end components, ensuring your platform remains secure, stable, and effortless to scale. • AI-Native Velocity: I utilize an optimized, AI-native development workflow to build, test, and audit production-grade code at twice the speed of traditional timelines. • Product Ownership: I proactively review specifications to optimize API data costs, eliminate bottlenecks, and ensure rapid, clean delivery. If you need an autonomous Technical Lead who can take total ownership of your technical blueprint and execute flawlessly, let’s connect!
- Java
- Grails
- MySQL
- HTML
- JavaScript
- Node.js
- CSS
- React
- HTML5
- CSS 3
- Software Debugging
- Linux
Hanoi, Vietnam
💡 Whether you need a new product built from scratch, help with cloud infrastructure, or expertise in digital signatures and security, I can help you deliver results. I bring together strong backend development skills with solid DevOps and cloud expertise, so you don’t just get code — you get a solution that’s ready for real-world growth. What I Can Do for You 💻 Software Development - Build robust back-end systems using Java or Python, Golang - Deliver production-ready APIs with Spring Boot, Django, Flask, FastAPI - Develop and customize enterprise platforms — including Warehouse Execution Systems (WES) and Warehouse Control Systems (WCS) at Fortna, covering order orchestration, inventory management, and integration with conveyors, sortation, and robotics in automated fulfillment centers 🤖 AI Agents & Automation - Design and build AI agent workflows that automate real business processes — data extraction, document processing, customer support, internal tooling, and reporting - Use AI tools (Claude, Cursor, Codex, LangChain-style orchestration) to ship products faster and reduce manual workload - Build custom integrations connecting AI agents to your existing systems (databases, APIs, internal dashboards) so automation actually fits into your workflow, not bolted on top of it 🗄 Databases & Data Engineering - Design and optimize databases (MySQL, MongoDB, Neo4j, Redis) - Build ETL pipelines and data warehouses (on-premise or cloud) - Web scraping & data processing with Selenium, BeautifulSoup, Scrapy, Airflow, Dagster, Playwright, ... ☁️ Cloud & DevOps - Deploy and manage apps on AWS and GCP - Automate infrastructure with Terraform - Ensure scalability with Kubernetes (K8s) - Set up monitoring dashboards with Prometheus & Grafana 🔐 Security & Digital Signatures - Implement digital signature workflows (PDF signing, PKI, CSC API) - Expertise with tools like iText, PDFBox, pyHanko, DSS Framework - Integrate cryptography & HSM solutions for compliance and security Why Clients Choose Me ✅ I don’t just code — I design, implement, and maintain full solutions. ✅ Strong focus on scalability, reliability, and security. ✅ Experience across product development, infrastructure, and consulting. ✅ Flexible: can work as a hands-on engineer or a technical consultant/partner.
- Docker
- Apache Kafka
- Python
- Spring Boot
- API Integration
- Scrapy
- PostgreSQL
- MongoDB
- Automation
- AWS Lambda
- AWS Application
- Big Data
- Google Cloud Platform
- Kubernetes
- Apache Airflow
Abu Dhabi, United Arab Emirates
I build production AI systems that actually ship — multi-agent workflows, LLM pipelines, and the backend to run them reliably under load. Most "AI developers" stop at a prototype; I bring a decade of production engineering plus an MBA, so what I deliver holds up in production and ties to a business outcome you can measure. What I build for clients: • Multi-agent systems — orchestration layers that coordinate specialized agents to automate real workflows, not toy demos • LLM & RAG pipelines — retrieval, grounding, evaluation, and the guardrails that keep outputs reliable • AI-powered backends — Kotlin/Spring Boot and Next.js services, APIs, queues, and CDN delivery built to scale • End-to-end AI features integrated into existing products and data Background: 12+ years across enterprise platforms and ad-tech real-time bidding (high-throughput, low-latency systems), an MBA with Distinction from Bayes Business School, and current founder of an AI product company where I design and run the full stack myself. I work AI-native — an orchestrated multi-agent development setup — which means I move faster and ship more than a typical solo contractor. If you have a clearly scoped AI build and want it done right the first time, send me the details, and I'll tell you exactly how I'd approach it.
- MySQL
- Linux System Administration
- Microservice
- Grails
- MongoDB
- Java
- Spring Framework
- API
- Spring Boot
- Kotlin
- RESTful Architecture
- API Integration
- Apache Kafka
- Database Design
- Rust
- Mobile Advertising
Panchkula, India
Ex-Walmart Global Tech Engineer (Fortune #1 Company) | Backend, Full Stack & Cloud Engineer 5+ years of software engineering experience delivering scalable backend systems, SaaS platforms, cloud-native applications, workflow automation solutions, AI-powered products, and production-grade APIs. I've worked across enterprise and startup environments, delivering 20+ projects involving microservices, workflow orchestration, cloud infrastructure, DevOps automation, AI integrations, marketplace platforms, analytics systems, and large-scale business applications. At Walmart Global Tech, I built scalable backend services, APIs, workflow systems, and data platforms supporting enterprise-scale operations. My work focused on performance optimization, workflow automation, system reliability, cloud-native development, and large-scale data processing. I specialize in turning complex business requirements into reliable, scalable, and maintainable software solutions. 🚀 Backend Engineering ⭐ Java & Spring Boot ⭐ Node.js & Express.js ⭐ Python (FastAPI, Django) ⭐ PHP & Laravel ⭐ REST APIs & Microservices ⭐ OpenAPI / Swagger ⭐ Apache Kafka ⭐ Event-Driven Architecture ⭐ Camunda BPM & Workflow Automation ⭐ Apache Airflow ⭐ Third-Party API Integrations ⭐ Distributed Systems ⭐ System Design & Scalability Key Impact: ✔ Developed 100+ production APIs and integrations ✔ Improved API response times by 20–30% through performance optimization ✔ Built scalable systems processing millions of records ✔ Automated business workflows reducing manual effort by 50%+ 🎨 Frontend Development ⭐ React.js ⭐ Next.js ⭐ JavaScript ⭐ TypeScript ⭐ HTML5 & CSS3 ☁️ Cloud & DevOps ⭐ AWS Cloud Infrastructure ⭐ Docker & Containerization ⭐ Kubernetes ⭐ Jenkins ⭐ GitHub Actions ⭐ GitLab CI/CD ⭐ Infrastructure Automation ⭐ Deployment Automation ⭐ Linux Administration ⭐ Monitoring & Production Support ⭐ DevOps & Release Engineering Key Impact: ✔ Reduced deployment effort by 80% through CI/CD automation ✔ Improved release reliability through automated deployment pipelines ✔ Supported highly available production environments with strong observability practices 🗄️ Databases & Data Technologies ⭐ PostgreSQL ⭐ MySQL ⭐ MongoDB ⭐ Redis ⭐ SQL Server ⭐ Oracle Database ⭐ Elasticsearch 🤖 AI & Automation ⭐ OpenAI APIs ⭐ AI Integrations ⭐ Workflow Automation ⭐ AI-Assisted Development (Cursor, Claude, ChatGPT, GitHub Copilot) Key Impact: ✔ Built AI-powered workflow automation platforms ✔ Integrated AI services into production applications ✔ Automated content processing and operational workflows 🏆 Recent Project Highlights ✔ AI-Powered Workflow Automation Platform * Reduced manual processing effort by 50%+ * Integrated AI-driven automation into business workflows ✔ Enterprise SaaS Management Platform * Built scalable backend architecture and APIs * Improved operational efficiency through workflow automation ✔ Marketplace & Matching Platform * Implemented provider matching, notifications, and transaction workflows * Designed scalable backend architecture supporting future growth ✔ Enterprise Data & Analytics Platform * Processed millions of records through automated ingestion pipelines * Reduced reporting turnaround time significantly through automation ✔ DevOps Automation & CI/CD Platform * Reduced deployment effort by 80% * Improved release quality and deployment consistency ✔ Cloud-Native Backend Infrastructure * Designed scalable microservices and API-driven architectures * Implemented monitoring, observability, and production support workflows ✔ WiCAN / OBD Diagnostic Platform * Built backend integrations and CAN communication workflows * Developed hardware-to-cloud communication systems Why Clients Work With Me ⭐ Ex-Walmart Global Tech Engineer ⭐ 4+ Years of Professional Experience ⭐ 20+ Successfully Delivered Projects ⭐ Strong Backend, Full Stack & Cloud Expertise ⭐ Fast Execution & Ownership Mindset ⭐ Clean, Scalable & Maintainable Code ⭐ Enterprise + Startup Experience ⭐ Production-Grade Cloud Infrastructure Experience ⭐ Strong Debugging & Root Cause Analysis Skills ⭐ End-to-End Product Delivery Whether you need a scalable backend, workflow automation platform, AI-powered application, cloud-native architecture, marketplace platform, enterprise dashboard, SaaS product, DevOps automation, or complex system integration, I can help transform requirements into reliable, production-ready solutions.
- C
- C++
- NodeJS Framework
- HTML
- Apache Kafka
- Java
- Python
- JavaScript
- AWS Application
- Linux
- RESTful API
- Ansible
- Docker
- Google Cloud Platform
- MongoDB
- Laravel
- Redis
- GitLab
- CI/CD
- Angular
Dubai, United Arab Emirates
💡 I help you fix backend issues fast, stabilize live systems, and build reliable APIs that work under real-world load. 💡 I also work on Java + Angular/TypeScript full-stack bugs, especially issues involving existing codebases, state handling, API flows, auth, and cross-platform app behavior. 💡 I fix rough MVPs and broken code produced by Claude, Codex, Cursor, and other AI agents: fragile flows, messy handoffs, weak auth, API bugs, browser-extension issues, and code that works in a demo but breaks in real use. 💡 I can also build focused MVPs/prototypes in hours when the scope is clear, then clean them up so they are maintainable. With 15+ years of hands-on experience, I’ve worked across enterprise systems, production debugging, high-availability applications, and government-grade Java/Spring Boot platforms. I’m not just building features; I’m usually the person called when something is already live, complex, slow, or broken. What I can do for you: * Debug and fix backend issues quickly (APIs, async flows, database problems) * Fix frontend issues in Angular, TypeScript and JavaScript (UI bugs, API integration issues, state handling) * Fix AI-generated / Claude / Codex / Cursor code before handoff * Clean up fragile MVPs and turn them into maintainable software * Debug browser extension issues and extension-to-backend connection problems * Optimize slow queries and improve performance (MySQL, SQL Server, Oracle) * Build and improve REST APIs (Java Spring Boot, Node.js) * Integrate third-party APIs (OAuth, OIDC, secure integrations) * Stabilize production systems and reduce recurring issues * Build focused MVPs and internal tools using Java, Node.js, Angular, APIs, and AI-assisted development * Automate workflows using scripts and AI agents where it makes sense * Set up and troubleshoot Linux-based environments (dev tools, services, remote access) * Configure browser-based dev environments (code-server / VS Code in browser) * Secure access using Cloudflare Tunnel or similar approaches (no port forwarding / VPN) * Fix and enhance C# desktop applications, including UI controls and small DevExpress tasks * I also handle structured document and data transformation work, including XML/schema-based outputs, PDF/Word-to-structured-data conversion, validation-driven formatting, and automation around repetitive document workflows. My approach is practical: understand the target schema, convert carefully, validate the output, and deliver clean files that are easy to review and maintain. Tech I work with regularly: * Backend: Java, Spring Boot, Node.js, Python (automation/scripts) * Frontend: Angular, TypeScript, JavaScript, HTML/CSS * Databases: MySQL, SQL Server, Oracle, Redis * APIs: REST, SOAP, API integrations, authentication flows * Reporting: JasperReports / Jaspersoft Experience highlights: * 6+ years at Upland Software on PowerSteering PPM, delivering 20+ product features and fixing 100+ defects in a mature enterprise product * Lead Java/full-stack work on Dubai Government projects, including DubaiNow integrations and the Dubai Police Rain and Waterlogging Forecast System * Architected or contributed to 20+ telecom and financial transaction systems before moving fully into remote enterprise product work * Strong focus on debugging, performance tuning, and understanding complex existing systems quickly I’m not here just to write code. I focus on solving problems, especially in systems that are already live and need careful handling. If your system has an issue, your AI-built MVP needs cleanup, or you need someone who can jump in, understand it fast, and fix it properly, I can help.
- Java
- Angular
- Software Debugging
- Software Architecture & Design
- Software Development
- Spring Boot
- NodeJS Framework
- MySQL
- Performance Optimization
- Microsoft SQL Server
- Oracle Database
- API
- TypeScript
- REST API
- SQL
- Web Application
- XML
- Document Conversion
- Database Design
- Web Development
How it works
Post a job for free Post a job
Tell us what you need. Create your own job post or generate one with AI then filter talent matches.
Hire top talent fast
Consult, interview, and hire quickly, so you can meet the freelancers you're excited about.
Collaborate easily
Use Upwork to chat or video call, share files, and track project progress right from the app.
Payment simplified
Manage payments in one place with flexible billing options. Only pay for approved work, hourly or by milestone.
Don't just take our word for it
“Upwork provides an umbrella-level of security. I can see a talent’s work history and ratings. I can hold payments in escrow. I can communicate through Upwork Messages instead of working through my email address.”
Kim Darling
Emerald Tiger
“Upwork is the best platform to hire skilled professionals when we're not looking for a full-time employee. All the companies in our portfolio use Upwork to find talent across a wide range of fields.”
David Merry
Kinetic Investments
“Our very specific requirements can be a challenge—With Upwork, we’re able to access a bigger community to ensure the success of our projects.”
Katja Krohn
Summa Linguae
How do I hire a Groovy Developer & Programmer on Upwork?
You can hire a Groovy Developer & Programmer on Upwork in four simple steps:
- Create a job post tailored to your Groovy Developer & Programmer project scope. We’ll walk you through the process step by step.
- Browse top Groovy Developer & Programmer talent on Upwork and invite them to your project.
- Once the proposals start flowing in, create a shortlist of top Groovy Developer & Programmer profiles and interview.
- Hire the right Groovy Developer & Programmer for your project from Upwork, the world’s largest work marketplace.
At Upwork, we believe talent staffing should be easy.
How much does it cost to hire a Groovy Developer & Programmer?
Rates charged by Groovy Developers & Programmers on Upwork can vary with a number of factors including experience, location, and market conditions. See hourly rates for in-demand skills on Upwork.
Why hire a Groovy Developer & Programmer on Upwork?
As the world’s work marketplace, we connect highly-skilled freelance Groovy Developers & Programmers and businesses and help them build trusted, long-term relationships so they can achieve more together. Let us help you build the dream Groovy Developer & Programmer team you need to succeed.
Can I hire a Groovy Developer & Programmer within 24 hours on Upwork?
Depending on availability and the quality of your job post, it’s entirely possible to sign up for Upwork and receive Groovy Developer & Programmer proposals within 24 hours of posting a job description.
Find more freelancers
Similar Groovy Developer & Programmer Skills
- Core Java Developers
- Import.io Developers
- Lisp Developers & Programmers
- Asynchronous I/O Developers
- AutoHotkey Developers
- JRuby Developers
- ANSI C Developers
- Akka Specialists
- C++ Programmers & Developers
- Basic Programmers
- Hadoop Developers & Programmers
- Java Servlets Developers
- Scala Developers
- ANTLR v4 Professionals
- Bash Developers
- Embedded C Programmers & Developers
Top Countries for Groovy Developers & Programmers
- Groovy Developers & Programmers in Armenia
- Groovy Developers & Programmers in Russia
- Groovy Developers & Programmers in India
- Groovy Developers & Programmers in Ukraine
- Groovy Developers & Programmers in the United Kingdom
- Embedded C Programmers & Developers in Vietnam
- Embedded C Programmers & Developers in Kenya
- Embedded C Programmers & Developers in Tunisia
- Embedded C Programmers & Developers in Portugal
- Embedded C Programmers & Developers in Poland
- Embedded C Programmers & Developers in Georgia
- Embedded C Programmers & Developers in France
- Embedded C Programmers & Developers in Ireland
- Embedded C Programmers & Developers in Latvia
- Embedded C Programmers & Developers in Hong Kong
- Embedded C Programmers & Developers in Greece