You will get Java Spring Boot Microservices Development
Rising Talent
Rising Talent
Project details
I am a Senior Java Developer with 12+ years of experience building secure and scalable backend systems.
I design and develop Spring Boot microservices that are easy to maintain, cloud-ready, and capable of handling high traffic.
Whether you need a new microservice architecture, an API layer for web/mobile apps, or an upgrade of an existing Java backend, I deliver clean code, strong security, and detailed documentation.
What You Get
Microservices design using Spring Boot & Spring Cloud
RESTful or GraphQL APIs
Database integration (MySQL, PostgreSQL, MongoDB, etc.)
Authentication & Authorization with JWT or OAuth2
Docker containerization & Kubernetes readiness
CI/CD pipeline setup (GitHub Actions, Jenkins, etc.)
Unit and integration testing
Deployment to AWS, Azure, or GCP
I design and develop Spring Boot microservices that are easy to maintain, cloud-ready, and capable of handling high traffic.
Whether you need a new microservice architecture, an API layer for web/mobile apps, or an upgrade of an existing Java backend, I deliver clean code, strong security, and detailed documentation.
What You Get
Microservices design using Spring Boot & Spring Cloud
RESTful or GraphQL APIs
Database integration (MySQL, PostgreSQL, MongoDB, etc.)
Authentication & Authorization with JWT or OAuth2
Docker containerization & Kubernetes readiness
CI/CD pipeline setup (GitHub Actions, Jenkins, etc.)
Unit and integration testing
Deployment to AWS, Azure, or GCP
Programming Languages
JavaCoding Expertise
Localization, Security, DesignWhat's included
| Service Tiers |
Starter
$150
|
Standard
$300
|
Advanced
$500
|
|---|---|---|---|
| Delivery Time | 2 days | 5 days | 14 days |
Number of Revisions | 0 | 1 | 2 |
Design Customization | - | - | - |
Content Upload | - | - | - |
Responsive Design | - | - | - |
Source Code | - | - | - |
22 reviews
(18)
(2)
(0)
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(1)
This project doesn't have any reviews.
EM
Enric M.
May 12, 2026
PKI Implementation Specialist Needed
SA
Sami A.
Mar 14, 2026
Entrust PKI and Thales HSM infrastructure
SD
Semone D.
Feb 13, 2026
Java Card Developer Needed for Secure Smart Card Application
Excellent Java Card developer. Delivered the project efficiently with strong technical expertise and clear communication throughout. Highly recommended.
SK
Sheela K.
Dec 4, 2025
React.js + node.js project, debug current bugs and continue develop for long term
Not recommend. before start contract very friendly, once start this cannot that cannot, need add extra money, and delivery time delay seriously, wont work with him anymore, totally not recommended
FS
Felipe S.
Oct 2, 2025
Cryptographic Design & CP/CPS
Again, this freelancer is very profesional, hight knowledge about the PKI matter, I hope to continue working with him in the future.
About Sanawer
Expert Java, SpringBoot, PKI & Digital/eSignature, CA/RA, HSM's
100%
Job Success
Sheikhupura, Pakistan - 3:12 pm local time
🧩𝐂𝐫𝐲𝐩𝐭𝐨𝐠𝐫𝐚𝐩𝐡𝐲 & 𝐏𝐊𝐈 𝐒𝐩𝐞𝐜𝐢𝐚𝐥𝐢𝐬𝐭
✍️𝐃𝐢𝐠𝐢𝐭𝐚𝐥 𝐒𝐢𝐠𝐧𝐚𝐭𝐮𝐫𝐞 & 𝐒𝐞𝐜𝐮𝐫𝐞 𝐒𝐲𝐬𝐭𝐞𝐦𝐬 𝐄𝐱𝐩𝐞𝐫𝐭
☁️𝐇𝐒𝐌𝐬 (𝐀𝐖𝐒, 𝐓𝐡𝐚𝐥𝐞𝐬, 𝐒𝐚𝐟𝐞𝐍𝐞𝐭)
💳𝐒𝐦𝐚𝐫𝐭 𝐂𝐚𝐫𝐝𝐬 & 𝐉𝐚𝐯𝐚 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐞𝐫
I am Sanawer, a 𝗦𝗲𝗻𝗶𝗼𝗿 𝗖𝗿𝘆𝗽𝘁𝗼𝗴𝗿𝗮𝗽𝗵𝘆 𝗮𝗻𝗱 𝗣𝗞𝗜 𝗘𝗻𝗴𝗶𝗻𝗲𝗲𝗿 with over 12 years of professional experience in developing secure, scalable, and high-performance software solutions. My expertise covers a wide range of areas, including Public Key Infrastructure (PKI), Digital and e-Signatures, Cryptographic Protocols, Cloud HSMs, Secure Smart Card Integration, and Java Enterprise Systems.
I specialize in building and integrating end-to-end secure systems, from certificate authorities (CA/RA) to signing servers and hardware-backed key management solutions. I’ve worked extensively with Cloud HSMs (AWS, Thales, SafeNet) and digital signing standards (PAdES, CAdES, XAdES, S/MIME) — ensuring compliance, integrity, and authenticity across digital ecosystems.
My focus is always on security, reliability, and performance, helping organizations protect data, strengthen identity management, and implement cryptography-based solutions that scale seamlessly across cloud and enterprise environments.
⚙️ Technical Expertise:
🔑 Cryptography, PKI, and Certificate Lifecycle Management
✍️ Digital Signatures (PAdES, CAdES, XAdES, S/MIME)
☁️ Cloud HSMs: AWS CloudHSM, Thales, SafeNet
💳 Smart Cards, USB Tokens, and Secure Key Storage
☕ Java, Spring Boot, RESTful APIs
🌐 AWS Services (EC2, S3, RDS, Route53, KMS)
🔒 Authentication Systems: Auth0, SAML, SSO, WSO2, Keycloak
📄 XML/PDF Signing & Verification
🐳 DevOps & CI/CD (Jenkins, Docker)
📱 Android Native App Development
I’m passionate about secure software design, digital trust solutions, and modern cryptographic systems that protect organizations and users in today’s connected world.
Let’s work together to build strong, secure, and future-ready digital solutions.
Steps for completing your project
After purchasing the project, send requirements so Sanawer can start the project.
Delivery time starts when Sanawer receives requirements from you.
Sanawer works on your project following the steps below.
Revisions may occur after the delivery date.
Please contact me before placing the order