Hire expert
Spring Data Experts
for any job

Millions of people use Freelancer to turn their ideas into reality.

Hire a top Spring Data Expert now

Trusted by leading brands and startups

Hire Spring Data Experts

DataForge Analytics

4.8

156

7.7

93%

Lahore, Pakistan

$20 USD per hour

I help startups, enterprises, and growing businesses build secure, scalable, AI-powered software solutions—from modern web and mobile applications to cloud infrastructure, DevOps automation, and enterprise integrations. With 7+ years of experience and hundreds of successful projects delivered worldwide, I specialize in designing production-ready applications, cloud-native architectures, AI automation, and business systems that improve performance, security, and operational efficiency. Core Expertise • AI-Powered Applications & Automation (OpenAI, Claude, LangChain) • Full-Stack Development (Laravel, PHP, .NET, Node.js, React, Next.js, Vue) • Mobile App Development (Flutter, React Native, Android & iOS) • Cloud Infrastructure (AWS, Azure, Google Cloud Platform) • DevOps & CI/CD (Docker, Kubernetes, GitHub Actions, GitLab CI/CD) • REST APIs, GraphQL & Third-Party Integrations • Shopify, WordPress & Custom SaaS Development • Microservices & Enterprise Software Architecture • Database Design (MySQL, PostgreSQL, MongoDB, Redis) • Google Workspace, Microsoft 365 & Zoho Email Migrations • Email Deliverability & DNS (SPF, DKIM, DMARC, BIMI, Cloudflare) • Server Administration (Linux, Windows, Apache, Nginx) Why Clients Hire Me ✔ End-to-end software development—from idea to deployment ✔ AI integration for modern business applications ✔ Production-ready cloud infrastructure & DevOps automation ✔ Secure, scalable, and maintainable code ✔ Expert in complex email migrations and deliverability optimization ✔ Strong communication, fast turnaround, and long-term support Whether you need an AI-powered SaaS platform, enterprise web application, mobile app, cloud migration, DevOps automation, API integration, or secure email infrastructure, I deliver solutions built for reliability, scalability, and business growth. Let's build innovative software that scales with your business.

Spring Data PHP Perl ASP C Programming

View Profile

Toriqul Global Solutions

4.9

123

6.5

80%

NATORE, Bangladesh

$40 USD per hour

Toriqul Global Solutions is a professional web design and development company dedicated to building modern, high-performance, and user-friendly digital solutions. Founded by Engineer Md. Toriqul Islam, a Computer Science & Engineering graduate from RUET, the company brings over 10 years of experience in delivering scalable and visually appealing websites. Web Design & development: We are a full-stack web developer with more than 10 years of experience. Our design approach is always Modern and simple, which attracts people towards it. We have built websites for a wide variety of industries. We have worked with a lot of companies and built astonishing websites. All Clients have good reviews about me. Client Satisfaction is my first Priority. Technologies We Use: Custom Websites Development Using ======>Full Stack Development. 1. HTML5 2. CSS3 3. Bootstrap4 4. jQuery 5. JavaScript 6. Angular JS 7. React JS 8. Node JS 9. WordPress 10. PHP 11. Ruby on Rails 12. MYSQL 13. Laravel 14. .Net 15. CodeIgniter 16. React Native 17. SQL / MySQL 18. Mobile app development 19. Python 20. MongoDB and many other skills Why Choose Us: * Modern, clean, and user-focused design approach * Fully responsive across all devices * Scalable and reusable code structure * Clean, optimized, and well-documented code * On-time delivery with strict commitment to deadlines * Clear and professional communication * 100% client satisfaction is our priority We have successfully worked with clients across different industries, delivering high-quality websites that meet both business goals and user expectations. Let’s Build Something Great Together. Contact us today to discuss your project and turn your ideas into reality. Best Regards, Toriqul Global Solutions

Spring Data PHP Perl ASP C Programming

View Profile

Nitesh K.

4.8

118

7.6

91%

VAISHALI, India

$25 USD per hour

More than 08 years of experience in Software development, huge experience in building mobile app & web solution. I delivered more than 300 Mobile apps and Web solutions base on Java/J2EE related stacks to various client across the world. I am very strong in developing REST API using Spring Boot, JAX-RS or Jboss REST Easy. I worked as back-end engineer for many web/mobile app project so know well FCM/APNS push notification services, Twilio SMS API and collaborating with Front-end/Mobile app developer. I worked for Android(Java/Kotlin), iOS, Hybrid app (Flutter/React native), PHP(Laravel, Codeigniter) , Java, Java Swing, JavaFX, Spring Boot, REST, C# with APS .NET . Cloud platform like Google, Azure, Digital Ocean, AWS and many local hosting provider. Integrating various hardware devices to Mobile or Desktop app eg. RFID, NFC Reader, Bar code reader, Receipt printer, Bluetooth keyboard . I also work on customising Unicenta POS system. Apart form that I have also strong hands on Android (Java.Kotlin) Based Mobile apps with Hybrid experience Flutter or React Native. These are not limitation I am open for any new project with any tech-stack.

Spring Data Java Python Mobile App Development J2EE

View Profile

Md Ruhul A.

4.1

5.9

65%

NATORE, Bangladesh

$10 USD per hour

Top Rated Freelancer ⭐⭐⭐⭐⭐ 5 Star Developer ⭐⭐⭐⭐⭐ 100% Job Success Hello and welcome! I'm a skilled full-stack developer with a passion for delivering high-quality work to my clients. With over 10 years of experience in web development, I specialize in building dynamic and engaging web applications using various technologies. I am an expert in web development and Mobile app development. I have worked on a wide variety of projects including CRM, Educational Platforms, Dashboards, Chat apps, Delivery apps, and more. My skills include: • HTML/CSS • JavaScript • Bootstrap • Tailwind CSS • JQuery • VueJS • ReactJS • PHP • Laravel • Python • Swift • C# • Rust • Perl • Ruby on Rails • Livewire • REST APIs • Payment integration • Database Design • SQL databases • Linux • SEO • Sopify • Docker • Laravel Forge • Objective-C • Java • Kotlin • React Native As a freelancer, I am committed to providing excellent communication and delivering top-notch work within your deadline. Whether you need a brand new web application developed from scratch or an existing one improved, I have the skills and experience necessary to get the job done. Some of the services I can provide include: ✅ Front-end web development ✅ Back-end web development ✅ Full-stack web development ✅ Converting design to HTML & CSS ✅ Custom API development ✅ Third-party API integration ✅ Database design and implementation ✅ Web application optimization and performance tuning My clients have described me as excellent developer and perfect communicator, and I strive to maintain this level of excellence in all my work. If you are looking for a dedicated and skilled full-stack web developer who can deliver exceptional work, please don't hesitate to contact me. I am confident that I can help you achieve your goals and exceed your expectations.

Spring Data PHP Perl ASP C Programming

View Profile

Rajit R.

4.8

5.7

94%

Bngalore, India

$70 USD per hour

I am a Software Architect with 14+ years of experience I have worked mostly with early stage start-ups in which I was involved in the end to end product development cycle. Co-founded an AI based interview platform for initial screening of candidates. I tried creating a platform for group buying of NFTs from opensea. It was shortlisted for YC Summer 2022. I have also created an app for small shops to manage their inventory and billing which works offline as well. I am strong in algorithms and data structures and have solved a few complex real life problems at my work using algorithms Languages and Frameworks - BackEnd - Java (SpringBoot, Micronaut, Vert.x) - GoLang (Beginner) - Node.js - NoSQL and SQL - Elastic Search, Redis - Kafka, SQS, NATS - Docker - Kubernates - AWS - Prometheus/Victoria Metrics - Grafana Thanks Rajit

Spring Data Java J2EE Algorithm NoSQL Couch & Mongo

View Profile

Safi U.

4.8

4.6

100%

Faisalabad, Pakistan

$30 USD per hour

I'm an experienced Full Stack Developer with over five years of success in freelancing, specializing in building robust backend systems using the Spring Boot framework in Java. I hold several certifications across diverse technical areas, showcasing my commitment to excellence and continuous learning. Currently, I work full-time as a Spring Boot Java Developer, which keeps my skills sharp and up-to-date with industry best practices. My clients span various countries, and I'm proud to consistently deliver high-quality, reliable solutions that meet their unique needs and earn their trust and satisfaction. I bring a strong expertise in designing and developing microservices-based projects, offering scalable and efficient solutions that are tailor-made for complex applications. If you're looking for a dedicated, skilled developer to turn your ideas into reality, please don’t hesitate to reach out. I'm just a message away and would love to discuss how I can add value to your project.

Spring Data PHP Java JavaScript Website Design

View Profile

Raeed A.

4.9

4.4

89%

Amman, Jordan

$15 USD per hour

Hello, I'm Raeed Welcome to my profile As a Java developer with three years of experience and 18 perfect reviews. I possess expertise in multitasking, problem-solving, and ensuring client satisfaction. committed to excellence, transparency, and delivering beyond expectations. To ensure client satisfaction, I offer milestone payments and a 100% refund policy. I'm your trusted partner for top-notch backend development solutions.

Spring Data Java JSP JavaScript Data Processing

View Profile

Anurag S.

4.7

4.8

95%

Pune, India

$70 USD per hour

Around 14 years of experience as an Java developer. Experienced in all phases of system development life cycle including Analysis, Design, Development, Debugging, Support, Integration, Maintenance and Enhancements of Java applications. Expertise in understanding and adapting core and enterprise design patterns while implementing the applications. o Strong Experience in making the application deployments into the Server(Glass- fish, Apache tomcat& IBM Web-sphere). o Easiness to become familiar with new technologies and paradigms. o Good experience of Migration process. o Web based user interface solutions provider according to the different environment. o Module testing regarding to the functional and technical aspects. o Possess good communication skills ✔Fast , Accurate & On time Delivery its my commitment. ✔Give 100% for Work ✔Your Trust is My Reward ✔Available 24/7 ✔Client Satisfaction is my "MOTTO".

Spring Data Java JSP Linux J2EE

View Profile

Pentabay Softwares Inc

4.9

6.4

100%

Milton, Canada

$35 USD per hour

Most Reviewed Companies by The Manifest in the Software Development category. Our team consists of seasoned professionals with a wealth of expertise, offering a diverse range of digital services to elevate your business: ✅ Custom Logo Design to establish a unique brand identity. ✅ Creative Graphics Design to captivate and engage your customers. ✅ Comprehensive Website Design & Development that tells your brand’s story while boosting your global reach. ✅ Mobile App Design & Development bringing your business to your customers’ fingertips. ✅ CRM Development to manage customer relations and streamline your workflow. ✅ SaaS Design & Development for scalable, cloud-based solutions to enhance operational efficiency. ✅ ERP Solutions Design & Development to unify and optimize business processes across departments. ✅ Blockchain Development including decentralized platforms, decentralized applications (dApps), and smart contracts using Ethereum, BNB Smart Chain, Solana, Polygon, and other blockchain technologies. At Pentabay, we understand that a robust online presence is key to business success. That’s why we adopt a holistic approach to all our services, ensuring that your digital presence is fully optimized and resonates with your target audience. Whether it's crafting an eye-catching logo or developing feature-rich, user-friendly websites and mobile applications, we’ve got you covered. Our Promise to You: ✅ 100% Client Satisfaction Rate ✅ 200+ Years of Combined Experience in IT services across our team ✅ 1000+ Happy Clients from various industries ✅ 100+ In-House Experts ready to serve your needs ✅ Our clientele spans 42+ Countries ✅ Quick Response Time (Under 2-3 hours) ✅ 5-Star Rated Profile across all platforms ✅ Dedicated Project Managers with fluency in English ✅ Support Availability 5 days a week across EST, PST, MST, and GMT time zones ✅ Physical Presence in the UK, USA, UAE, and Pakistan Let's connect! Start a conversation here on Freelancer.com so we can discuss your project requirements in detail and share our innovative ideas with you. Thanks for visiting our profile!

Spring Data PHP Java JSP JavaScript

View Profile

See more Spring Data Experts

Clients rate our Spring Data Experts

5 out of 5

from 694 reviews

How to hire a great freelance Spring Data Expert

A Spring Data expert is a backend developer who specializes in building data access layers for Java applications using the Spring Data framework, integrating relational and NoSQL databases through repositories, JPA, and query abstractions. Hiring a Spring Data freelancer gives your project a specialist who can design persistence layers that are clean, testable, and production-ready, whether you are building a new microservice or refactoring a legacy monolith.

What does a Spring Data freelancer deliver

A Spring Data developer designs and implements the persistence tier of Java and Kotlin applications. They translate domain models into entities, define repository interfaces, write derived and custom queries, and tune database access for performance. Their work sits at the heart of any Spring Boot application that reads or writes data, which is why their decisions affect transaction integrity, latency, and long-term maintainability.

Typical deliverables from a Spring Data specialist include:

JPA entity models with correctly mapped relationships, cascading rules, and fetch strategies

Repository interfaces using Spring Data JPA, Spring Data MongoDB, Spring Data Redis, Spring Data R2DBC, or Spring Data Elasticsearch

Custom queries written with JPQL, native SQL, Querydsl, or the Criteria API

Pagination, sorting, and projection support for REST endpoints

Database migrations with Flyway or Liquibase

Transactional service layers using @Transactional with appropriate propagation and isolation

Performance tuning of N+1 queries, lazy loading issues, and connection pool configuration with HikariCP

Integration tests using Testcontainers, H2, or embedded Mongo

Tools, frameworks, and technologies

A capable Spring Data consultant works fluently across the broader Spring ecosystem and the database technologies it integrates with. Expect proficiency with:

Spring Boot, Spring Framework, and Spring Security for the surrounding application stack

Hibernate ORM as the default JPA provider, including second-level caching with Ehcache or Caffeine

Relational databases including PostgreSQL, MySQL, Oracle, and SQL Server

NoSQL stores including MongoDB, Cassandra, Redis, and Elasticsearch

Reactive data access with Spring Data R2DBC and Project Reactor

Build tools such as Maven and Gradle, with dependency management for Spring Boot starters

Observability tools including Micrometer, Prometheus, and Spring Boot Actuator for query metrics

Containerization with Docker and orchestration with Kubernetes for deployment of data-bound services

Industries and use cases

Spring Data is the dominant persistence framework in enterprise Java, which means Spring Data experts are hired across nearly every sector that runs JVM workloads. Common engagements include:

Fintech platforms requiring transactional integrity, audit trails, and reliable batch processing

E-commerce backends with complex catalog, order, and inventory models

Healthcare systems handling patient records with strict consistency and security requirements

SaaS products built on microservice architectures with polyglot persistence

Logistics and supply chain platforms aggregating data from multiple sources

Telecom and IoT systems writing high-volume event data into time-series or document stores

How to evaluate a Spring Data candidate

Strong Spring Data developers usually have several years of Java backend experience and a working command of database internals, not just the framework. Look for portfolio evidence of production Spring Boot applications, contributions to repository layers in open-source projects, and clear answers on transaction management and query performance. Certifications such as VMware Spring Professional are a positive signal but not a substitute for demonstrated work.

Useful interview questions you can use directly:

How do you decide between using a derived query method, a JPQL @Query, and a native SQL query in Spring Data JPA?

Walk me through how you would diagnose and fix an N+1 select problem in a Hibernate-backed repository.

When would you choose Spring Data MongoDB over Spring Data JPA, and what trade-offs does that introduce?

How do propagation and isolation levels in @Transactional affect behavior, and when have you needed to change the defaults?

How do you structure integration tests for a repository layer, and why do you favor that approach?

Why hire Spring Data experts on Freelancer.com

Freelancer.com gives you access to a global pool of Java backend developers with deep Spring ecosystem experience, from independent specialists to small teams that have shipped production systems. You can post a project on Freelancer.com, receive competitive bids within hours, and compare candidates by portfolio, ratings, completion rate, and verified reviews from past clients. Clients set their own budgets, and Milestone Payments hold funds in escrow so payment is only released when work is approved. Whether you need a short consultation on a query performance issue or a long engagement to build a microservice from scratch, you can hire on Freelancer.com with confidence in the vetting signals available on every profile.

Post a project on Freelancer.com today and connect with skilled Spring Data experts ready to design, build, and tune the data layer your application needs.

What are the steps to hiring a freelance Spring Data expert?

Hiring a Spring Data developer is straightforward when you treat the brief as a technical specification rather than a wishlist. The clearer you are about your stack, your data model, and your performance expectations, the more accurate the bids you receive will be. The process below walks through how to go from a project idea to an awarded engagement on Freelancer.com.

Step 1: Post your project on Freelancer.com

Your project post is the single biggest determinant of bid quality. A precise brief filters out generic Java developers and attracts freelancers with genuine Spring Data experience. Head to the post project page , where you fill in the brief, scope, timeline, and budget before publishing the project for freelancers to bid on.

The Spring Boot version and Java or Kotlin version your project uses

The databases involved (for example PostgreSQL, MongoDB, Redis) and whether the access pattern is reactive or blocking

The deliverables expected: entities, repositories, migrations, tests, documentation

Any existing code, ERDs, or API contracts the freelancer should work against

Performance or compliance constraints, expected timeline, and budget range

Step 2: Review bids from freelancers

Bids are short proposals, not just price quotes. Read each one carefully to see how the freelancer interprets your brief, what approach they propose, and whether their suggested timeline is realistic. A strong Spring Data proposal usually demonstrates that the candidate has thought about transaction boundaries, query strategy, and testing rather than promising a quick fix.

Look for specific references to Spring Data modules relevant to your stack (JPA, MongoDB, R2DBC, Redis)

Check whether the bid asks intelligent clarifying questions about your data model or constraints

Assess whether the proposed timeline aligns with the scope you described

Note any sample repositories, GitHub links, or code snippets attached to the bid

Use Freelancer.com chat to ask each shortlisted freelancer one or two technical questions before committing

Step 3: Evaluate freelancers and award the project

The final decision combines proposal quality with profile evidence. For a Spring Data engagement you want to see consistent delivery on Java backend work, not just a single impressive project. Weigh portfolio depth, written client reviews, and completion rate together rather than focusing on any one metric.

Portfolio depth and relevance, especially production Spring Boot or Java EE work

Star ratings and the volume of completed projects

Written reviews from past clients describing code quality, communication, and reliability

Verified payment method, on-time delivery rate, and overall completion rate

Any visible contributions to open-source Spring projects or technical writing

Award the project and fund Milestone Payments so funds are held in escrow and released only as agreed deliverables are approved

What is the difference between Spring Data JPA and Hibernate?

Hibernate is a JPA implementation that handles object-relational mapping, while Spring Data JPA is an abstraction layer on top of JPA that removes boilerplate by generating repository implementations at runtime. In a typical Spring Boot project you use both: Hibernate as the underlying ORM and Spring Data JPA as the developer-facing API.

Can I hire a Spring Data freelancer for a one-off project?

Yes. Many engagements are short, scoped pieces of work such as building a repository layer, migrating from raw JDBC to Spring Data, fixing performance issues, or adding a new database integration to an existing Spring Boot service. You can post a project on Freelancer.com with a clear brief and receive bids tailored to that scope.

Do I need a Spring Data specialist or a general Java developer?

If your project is mostly persistence design, query tuning, or integrating multiple data stores, a Spring Data specialist will move faster and avoid common pitfalls. For broader backend work that includes APIs, security, and business logic, a Spring Boot generalist with strong Spring Data experience is usually the better fit.

How long does a Spring Data project typically take?

Timelines vary with scope. A focused task such as adding pagination, writing custom Querydsl queries, or fixing a transactional bug can take a few days, while building a full data access layer for a new microservice with migrations and tests usually runs several weeks. Freelancers will propose realistic timelines in their bids based on your brief.

What should I provide before the freelancer starts?

Share your domain model or ERD, the target database technologies, the existing codebase or repository structure if any, and any non-functional requirements such as expected throughput, data volumes, or compliance constraints. The clearer the inputs, the faster the freelancer can deliver a working persistence layer.