You will get A Secure Spring REST API with JWT Auth & Flexible DB Integration

5.0

Let a pro handle the details

Buy Web Application Programming services from Emmanuella , priced and ready to go.
5.0

Let a pro handle the details

Buy Web Application Programming services from Emmanuella , priced and ready to go.

Project details

You'll receive a secure and high-performance Spring REST API, complete with robust JWT authentication and seamless database integration. With over 4 years of hands-on experience in Java, Spring Boot, and RESTful services I’ll design and implement a tailored solution that ensures data security and flexibility. My deep knowledge of database management and API security ensures that you'll get a scalable and efficient system. I’m committed to delivering top-quality work and ensuring your complete satisfaction.
Programming Languages
Java
Coding Expertise
Cross Browser & Device Compatibility, Performance Optimization, Security
What's included
Service Tiers Starter
$150
Standard
$250
Advanced
$500
Delivery Time 1 day 3 days 3 days
Number of Revisions
223
Number of Pages
2
Design Customization
Content Upload
-
Responsive Design
-
-
Source Code
Optional add-ons You can add these on the next page.
Fast Delivery
+$100 - $150
Additional Revision
+$25
5.0
12 reviews
100% Complete
1% Complete
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1% Complete
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1% Complete
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1% Complete
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VG

Vali G.
5.00
Jan 25, 2026
Java Developer Needed for MoneyMentor Console Application

VG

Vali G.
5.00
Sep 30, 2025
Java Developer Needed for MoneyMentor Console Application

JF

Johan F.
5.00
Aug 3, 2025
CLI GUI with command handling and parsing in java (education and example) It has been really fun to work with Emmanuella with this CLI-based system and I really recommend here. She is good in coding java and kotlin and understands the problems and can build a workable system in short time and suggests good improvments.

TD

Tuan D.
4.65
Mar 9, 2025
N8n automation - image analyze for title, description, tags to a csv table Did a good job on the project. Just a slight communication issue on understanding each other but overall got the job done at the end.

JO

Jason O.
5.00
Jan 28, 2025
Transfer workflows from make.com to n8n.
Emmanuella C.Status: Offline

About Emmanuella

Emmanuella C.Status: Offline
Java Software Engineer | Spring Boot | JavaScript | TypeScript
100% Job Success
5.0  (12 reviews)
Lekki, Nigeria - 2:06 am local time
I’m a Senior Software Engineer with over 4 years of experience delivering secure, scalable, and high-performance software solutions for startups, SMEs, and enterprises across industries such as e-commerce, fintech, blockchain, edtech, and food & beverage. My core focus is on backend development, API engineering, cloud-native applications, workflow automation, and AI-powered solutions, but I also bring full-stack expertise to deliver complete, production-ready systems.

I hold a Bachelor’s degree in Computer Science and specialize in building robust, maintainable, and efficient backend architectures using Java, Spring Boot, Node.js, and TypeScript, integrated with high-performance databases like PostgreSQL, MySQL, MongoDB, and Redis. I’m highly skilled in RESTful API development, microservices architecture, asynchronous processing, and secure authentication (JWT, OAuth2, SSO).

Core Technical Skills:
Backend Development: Java, Spring Boot, Spring MVC, Jakarta EE, JavaFX, Node.js, Express.js, Python, Golang
Frontend Development: React, Angular, Next.js, Thymeleaf, JSP/JSTL, Bootstrap, HTML5, CSS3, JavaScript, jQuery
Databases: MySQL, PostgreSQL, MongoDB, Redis (NoSQL & SQL database design, query optimization, indexing, caching)
Cloud & DevOps: AWS (EC2, S3, RDS, Lambda), Google Cloud Platform (GCP), Microsoft Azure, Docker, Kubernetes, CI/CD pipelines
Messaging & Integration: RabbitMQ, Kafka, WebSockets, API Gateway integrations, GraphQL
Automation & AI: n8n, Make (Integromat), Apify, PhantomBuster, OpenAI API, AI model integration, workflow orchestration
Version Control & Collaboration: Git, GitHub, GitLab, Bitbucket, Agile/Scrum methodologies

Achievements & Project Highlights:
✔ Built an e-commerce platform capable of handling 500+ daily transactions, reducing load times by 30% and lowering infrastructure costs by 15% through database optimization and caching strategies.
✔ Led a cloud migration project from legacy infrastructure to AWS, reducing operational costs by 25% while improving scalability and uptime.
✔ Developed an AI-powered study assistant for neurodivergent students, winning the AI for Social Good hackathon and improving engagement and retention rates.
✔ Created a data automation pipeline that processed and scored 1,300+ startup applications for Pitch2Win, enabling quick finalist selection and improving investor matching efficiency.
✔ Engineered a grant-winning platform for Babcock University’s community health project, helping secure $80K in funding.

What I Bring to Your Project:
✔ Expert in API-first development, secure authentication, and microservices architecture
✔ Strong track record with data enrichment, web scraping, and workflow automation tools like n8n and Apify
✔ Proven ability to design cloud-native, fault-tolerant, and cost-optimized applications
✔ Deep experience in AI integration for lead generation, data analysis, and personalized user experiences
✔ Commitment to clear communication, on-time delivery, and scalable, future-proof code

If you’re looking for a results-driven software engineer who can handle everything from custom backend architecture to AI-driven automation systems, I’d love to collaborate. Let’s discuss how I can turn your requirements into a solution that’s efficient, secure, and built for growth.

Steps for completing your project

After purchasing the project, send requirements so Emmanuella can start the project.

Delivery time starts when Emmanuella receives requirements from you.

Emmanuella works on your project following the steps below.

Revisions may occur after the delivery date.

Project Initialization

I start by setting up the project blueprint on spring initializr, where I modify the project metadata and add the necessary building dependencies

Building and Testing The Project

I move to IntelliJ IDEA, where I start building the project, connecting it to the data source and writing the APIs, I test each endpoint after I write them.

Review the work, release payment, and leave feedback to Emmanuella .