Hire the Best Clojure Developers

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Wu C.

Qingdao, China

$20/hr
5.0
12 jobs

With 9+ years of experience, I help startups and product teams build production-ready frontend systems in React, Vue, Electron, and React Native. I use AI tools like Cursor and Codex to speed up development. Still, the real value is knowing how to keep AI inside safe engineering boundaries: clear requirements, practical architecture, automated tests, code review, and regression checks. My years of team-based development experience help me turn AI-generated output into reviewed, tested, maintainable production code. What I can help you with: ๐Ÿš€ Fast frontend delivery: from requirement to production with clear milestones ๐Ÿค– AI-assisted development: Cursor/Codex workflows for implementation, refactoring, documentation, and test generation ๐Ÿงช Testing systems: Playwright scenarios and regression checks for reliable, fast delivery ๐Ÿ’ณ Payments: Stripe onboarding, checkout, subscriptions, discounts, payouts, and billing management ๐Ÿ–ฅ๏ธ Complex frontend apps: Electron desktop apps, dashboards, internal tools, and admin systems โšก Performance optimization: smoother rendering for high-frequency data updates and large datasets Why clients work with me: โœ… Senior frontend experience across React, Vue, Electron, Nuxt, and React Native โœ… Practical AI-assisted workflow without losing control of code quality โœ… Strong testing mindset for critical flows such as payment, onboarding, and checkout โœ… Clear communication, clean code, useful documentation, and predictable handoff โœ… Business-focused mindset: I care about product outcomes, not just code Selected experience: - Built Stripe onboarding, checkout, payment method management, subscriptions, discounts, payouts, and billing interfaces for a production education platform. - Created Playwright test scenarios for critical onboarding and checkout flows. - Supported marketing teams with UTM strategy, GTM tracking, analytics events, and Looker Studio / Databox reporting. - Built and maintained a reusable HTML email template system with 80+ production templates and SendGrid migration support. - Led frontend architecture for a Linux Electron application with high-frequency sensor data rendering, large file uploads, map/tree interaction, and offline deployment constraints. - Mentored frontend developers, reviewed pull requests, selected practical libraries, and built shared UI components. If you need a senior frontend developer who can combine AI speed, test discipline, and production delivery, letโ€™s talk.

  • Clojure
  • JavaScript
  • React
  • Electron
  • CSS
  • HTML
  • ClojureScript
  • Vue.js
  • Redux
  • Mobx
  • Responsive Design
  • React Native
Varun B.

Amritsar, India

$20/hr
5.0
1 jobs

Hi, Iโ€™m a Senior Full Stack Developer with 8+ years of experience building scalable, secure, and high-performance web applications. I specialize in Java, Spring Boot, React, Angular, AWS, and modern cloud-native architectures, helping businesses transform ideas into reliable, production-ready software. Over the years, Iโ€™ve delivered enterprise applications across healthcare, finance, and business automation domains. My expertise spans backend development, modern frontend frameworks, cloud deployment, API integrations, and system architecture. Core Skills โ€ข Java, Spring Boot, Hibernate, JPA โ€ข React, Angular, TypeScript, JavaScript โ€ข REST APIs, Microservices, GraphQL โ€ข AWS (Cognito, EC2, S3), Docker, Kubernetes โ€ข MySQL, PostgreSQL โ€ข Spring Security, OAuth2, JWT Authentication โ€ข AI/LLM Integrations & Workflow Automation (n8n) โ€ข Xero, Sage & Third-Party API Integrations I have extensive experience designing scalable REST APIs, modernizing legacy applications, integrating cloud services, and building secure authentication systems. Iโ€™ve also led engineering teams, mentored developers, conducted code reviews, and driven technical decisions for enterprise-scale projects. I focus on writing clean, maintainable code, communicating clearly, and delivering high-quality solutions on time. Whether you need a complete full-stack application, backend APIs, frontend development, cloud integration, or ongoing technical leadership, Iโ€™m ready to help.

  • Java
  • Spring Boot
  • React
  • Angular
  • Full-Stack Development
  • RESTful API
  • Microservice
  • Amazon Web Services
  • SQL
  • PostgreSQL
  • MySQL
  • Docker
  • Kubernetes
  • Hibernate
  • Git
  • API Integration
  • Spring Security
  • Apache Kafka
  • Automated Workflow
  • JavaScript
Albert E.

Bogor, Indonesia

$8/hr
5.0
7 jobs

Hi there ๐Ÿ‘‹ I am a senior software engineer with more than 18+ years of experience in the industry with a can-do thinking in mind. As a fullstack developer heavy on the backend, I have a wide range of expertise in the backend, frontend, devops, and system design. I am proficient with Java Spring Boot and familiar with Spring Cloud, Spring AI, Spring Data, Micronaut, Hibernate, JUnit, Mockito, AssertJ, K6, Thymeleaf, React, Vue, Angular, Tailwind, Bootstrap, Docker, Kubernetes, Helm, GCP, AWS, Azure and VPS. Using various servers like Postgres, MySQL, Oracle DB, SQL Server, MongoDB, Redis, Elasticsearch, Vespa, Sqlite, BigQuery, Tomcat, Jetty, Undertow, Netty, Nginx, Apache, Node, ActiveMQ, RabbitMQ, Kafka, PubSub, Auth0, Keycloak, LDAP, Eureka, Consul, Vault, Sleuth, Resilience4j, Minio, S3, Alfresco, Jenkins, Stripe, Twilio, OpenAI, Azure AI, Gemini AI, and OpenRouter AI. Using applications like GitHub, GitLab, BitBucket, Jira, Redmine, Trello, Notion, Figma, SSH, TMux, Git, NVim, Copilot, ChatGPT, Gemini, Claude, Codex, VSCode, Cursor, Antigravity, IntelliJ, DBeaver, Insomnia, Postman, and Chrome. The most common projects I work with are API services, web applications, enterprise applications, and AI platform integration using architecture like monolith, modulith, and microservice, using protocols like REST, GraphQL, SOAP, gRPC, JSON-RPC, XML-RPC, WebSocket, Webhooks, Polling, OpenAPI, and AI Platform Integration API with HITL (Human in the loop) good practices. I am open to discussion and project work. Feel free to hire me. Thanks, Warmly Regard.

  • Java
  • Spring Boot
  • Python
  • FastAPI
  • C++
  • API
  • Back-End Development
  • Microservice
  • Artificial Intelligence
  • OpenAI API
  • PostgreSQL
  • MongoDB
  • Apache Kafka
  • React
  • Vue.js
Avneet S.

Regina, Canada

$15/hr
5.0
2 jobs

๐Ÿ“ข Available for New Projects ๐Ÿ“ข Hi, I'm ๐—”๐˜ƒ๐—ป๐—ฒ๐—ฒ๐˜, a Senior Java Developer and Technical Lead with ๐Ÿญ๐Ÿฐ+ years of experience building enterprise software for ๐—™๐—ผ๐—ฟ๐˜๐˜‚๐—ป๐—ฒ ๐Ÿฑ๐Ÿฌ๐Ÿฌ companies across ๐—ณ๐—ถ๐—ป๐˜๐—ฒ๐—ฐ๐—ต, ๐—ต๐—ฒ๐—ฎ๐—น๐˜๐—ต๐—ฐ๐—ฎ๐—ฟ๐—ฒ, ๐˜๐—ฒ๐—น๐—ฒ๐—ฐ๐—ผ๐—บ๐—บ๐˜‚๐—ป๐—ถ๐—ฐ๐—ฎ๐˜๐—ถ๐—ผ๐—ป๐˜€, ๐—ฎ๐—ป๐—ฑ ๐˜๐—ฎ๐˜… ๐˜๐—ฒ๐—ฐ๐—ต๐—ป๐—ผ๐—น๐—ผ๐—ด๐˜†. I specialize in designing scalable backend systems with Java and Spring Boot while also delivering modern full-stack applications using React and Angular. I currently work on Canada's online tax platform at ๐—›&๐—ฅ ๐—•๐—น๐—ผ๐—ฐ๐—ธ ๐—–๐—ฎ๐—ป๐—ฎ๐—ฑ๐—ฎ, where I design and develop cloud-native applications, microservices, secure APIs, authentication systems, and production-grade integrations used by thousands of users. I enjoy solving complex engineering problems, improving application performance, and building software that's easy to maintain and scale. I communicate clearly, take ownership of projects, and focus on writing clean, production-ready code rather than quick fixes. Whether you're launching a new product or improving an existing platform, I can help you deliver reliable software faster. ### ๐—ช๐—›๐—”๐—ง ๐—œ ๐—›๐—˜๐—Ÿ๐—ฃ ๐—ช๐—œ๐—ง๐—› โœ”๏ธ Enterprise Java Applications (Spring Boot, Microservices, REST APIs) โœ”๏ธ Full-Stack Development (React, Angular, TypeScript) โœ”๏ธ Legacy Application Modernization & Performance Optimization โœ”๏ธ Cloud-Native Development (Azure, AWS, Docker, Kubernetes) โœ”๏ธ Authentication & Security (OAuth2, JWT, Auth0) โœ”๏ธ Third-Party Integrations, Payment Systems & Enterprise APIs โœ”๏ธ System Design, Solution Architecture & Technical Leadership โœ”๏ธ AI-assisted Software Development using GitHub Copilot and ChatGPT Clients appreciate my ability to understand complex business requirements quickly, communicate proactively, and deliver maintainable solutions that continue performing long after deployment. ### ๐—ฆ๐—ฃ๐—˜๐—–๐—œ๐—”๐—Ÿ๐—ง๐—œ๐—˜๐—ฆ Java, Spring Boot, Microservices, REST APIs, React, Angular, TypeScript, PostgreSQL, Docker, Kubernetes, Azure, AWS, OAuth2, JWT, Auth0, System Design, Enterprise Architecture, Cloud Development, Full-Stack Development, AI-assisted Software Development. ### ๐— ๐—ฌ ๐—ฆ๐—ง๐—”๐—–๐—ž ๐—•๐—ฎ๐—ฐ๐—ธ๐—ฒ๐—ป๐—ฑ: Java, Spring Boot, Spring Security, Hibernate, REST APIs, Microservices ๐—™๐—ฟ๐—ผ๐—ป๐˜๐—ฒ๐—ป๐—ฑ: React, Angular, TypeScript, JavaScript ๐—–๐—น๐—ผ๐˜‚๐—ฑ & ๐——๐—ฒ๐˜ƒ๐—ข๐—ฝ๐˜€: Microsoft Azure, AWS, Docker, Kubernetes, Azure DevOps ๐——๐—ฎ๐˜๐—ฎ๐—ฏ๐—ฎ๐˜€๐—ฒ๐˜€: PostgreSQL, MySQL, SQL Server ๐—ง๐—ผ๐—ผ๐—น๐˜€ & ๐—œ๐—ป๐˜๐—ฒ๐—ด๐—ฟ๐—ฎ๐˜๐—ถ๐—ผ๐—ป๐˜€: Auth0, Stripe, Azure Service Bus, Git, CI/CD ###๐Ÿ’ก๐—ช๐—›๐—ฌ ๐—›๐—œ๐—ฅ๐—˜ ๐— ๐—˜ (๐—ช๐—›๐—”๐—ง ๐—ช๐—œ๐—Ÿ๐—Ÿ ๐—ฌ๐—ข๐—จ ๐—š๐—˜๐—ง?) โœ… Faster time-to-market โ†’ I deliver production-ready APIs, admin panels and integrations so you can start generating value sooner. โœ… Less risk, more reliability โ†’ solid architecture, clean code, and production-hardened practices. โœ… Real business integrations โ†’ payments, digital signing (Digio), PDF workflows (iText), analytics & notifications. โœ… Maintainable systems โ†’ I write code your team can extend, not hacky quick fixes youโ€™ll regret. โœ… Focus on ROI โ†’ features prioritized by impact, so every sprint moves business metrics. ### ๐—ฅ๐—˜๐—”๐——๐—ฌ ๐—ง๐—ข ๐—•๐—จ๐—œ๐—Ÿ๐——? Whether you need a senior engineer to architect a new platform, modernize an existing application, or solve difficult production issues, I'd be happy to help. Let's discuss your project and build software that's scalable, secure, and built to last.

  • Front-End Development
  • Back-End Development
  • React
  • MongoDB
  • Java
  • Spring Boot
  • Hibernate
  • Node.js
  • JavaScript
  • ExpressJS
  • API Integration
  • API Testing
  • PostgreSQL
  • MySQL
  • Redis
  • NoSQL Database
  • Apache Kafka
  • TestNG
  • Mockito
  • Azure DevOps
Sanjay Kumar G.

Kanpur, India

$4/hr
5.0
1 jobs

With 18+ years of experience, I specialize in building robust, scalable, and high-performance Java-Spring applications, as well as modernizing and optimizing existing systems. My expertise spans end-to-end development, architecture redesign, performance tuning and bug fixing. eCommerce Expert:ย 10+ years specializing inย SAP Hybris/Commerce Cloudย andย IBM WCS Technical Depth:ย Hands-on experience with Spring Microservices, Cloud architectures (GCP), and modular application design I deliver reliable, high-quality solutions with a focus on stability, client satisfaction, and lasting professional relationships. Hands-on experience with the following tools and frameworks: Languages & Frameworks - Java 8/11/17/21 - JSP, Servlet - Spring MVC, Spring Boot, Spring REST, Spring Batch, Spring JPA, Spring Security) - XML/XSL - Struts 1.2 - EJB 2.0 / 2.1 / 3.0 - JSF JPA - Hibernate - MyBatis Frontend - React Js - Angular eCommerce Platforms - IBM WebSphere Commerce (WCS) - SAP Hybris Commerce Messaging & Streaming - Apache ActiveMQ - Apache Kafka - Apache RabbitMQ Application Servers - WebLogic - JBOSS - Apache Tomcat Databases - Oracle - DB2 - MySQL - MongoDB - Postgres - SQL Server Reporting - iReport - JasperReports Search - Apache Solr - ElasticSearch Cache - Redis - Memcached Payment Integration - CyberSource Scheduling - Quartz Scheduler Build, Logging - ANT - Gradle - Maven - Log4j Code Quality - SonarQube - PMD - CheckStyle - FindBugs/SpotBugs - JaCoCo - Cobertura DevOps Tool - Git/GitHub - CVS - SVN - IBM ClearCase - Jenkins - Docker Web Services - Apache Axis - SOAP - WSDL API testing and collaboration tool - Postman - Swagger Testing Framework - JUnit - Groovy - Mockito Feature and Bug Tracking - Trackit Record - JIRA - Rally IDEs & Development Tools - Eclipse - IntelliJ - IBM RAD - TOAD - SQL Developer - Cygwin - Putty - JMX Console Looking forward to collaborating! Thanks & Regards, Sanjay

  • Java
  • Spring Boot
  • Microservice
  • Apache Solr
  • Elasticsearch
  • SQL
  • Full-Stack Development
  • Spring Security
  • Spring Batch
  • Redis
  • SAP Hybris
  • Commerce Cloud
  • JasperReports
  • EJB
  • IBM WebSphere
Dilshod F.

Tashkent, Uzbekistan

$15/hr
5.0
2 jobs

Build Scalable Enterprise Systems with a CTO Mindset | Java Spring Boot & Full-Stack Expert High-quality code is not an expenseโ€”itโ€™s an investment. I donโ€™t just write endpoints; I architect systems that scale with your business. With a deep focus on the Java ecosystem and modern web technologies, I help startups and established companies turn complex requirements into robust, production-ready solutions. Whether you are building an MVP or scaling a microservices-based platform, I ensure your backend is secure, fast, and maintainable. What I Bring to Your Project: โœ… Strategic Architecture: Designing scalable systems using Spring Boot, focusing on Clean Architecture and SOLID principles. โœ… Security First: Implementing industry-standard security with Spring Security and JWT to protect your data. โœ… Performance & Optimization: Leveraging PostgreSQL, Redis, and optimized query logic for high-load applications. โœ… Seamless Integration: Connecting your system with third-party APIs, payment gateways (like PayZo), and automated services. โœ… Mentorship & Leadership: As a CTO at heart, I ensure the development process follows best practices, making the code easy to handover or scale. Core Tech Stack: โ— Backend: Java, Spring Boot (Web, Security, Data JPA, Cloud), NestJS, Rust. โ— Frontend: React.js, TypeScript, Tailwind CSS. โ— Mobile & Desktop: Tauri. โ— Infrastructure: Docker, PostgreSQL, Redis, RESTful API Design. Recent Success: Successfully delivered a high-performance Bookstore Management system with complete API documentation (Swagger/Postman) and 100% client satisfaction on Upwork. If youโ€™re looking for a developer who understands business goals as well as they understand code โ€” let's have a chat and build something great together.

  • Java
  • Spring Framework
  • Spring Security
  • Spring Boot
  • PostgreSQL
  • MySQL
  • JavaScript
  • TypeScript
  • Apache Tomcat
  • React
  • RESTful API
  • RESTful Architecture
  • Microservice
  • OpenAPI
  • Prometheus
  • Telegram API
  • Clean Architecture
  • RabbitMQ
  • Spring Cloud
  • Apache NiFi

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Don't just take our word for it

Clojure Developers Hiring FAQs

What is Clojure?

Clojure is a dialect of Lisp for the Java Virtual Machine (JVM). Itโ€™s a general-purpose programming language designed from the bottom up to support immutable data structures, concurrency, and functional programming.ย 

Like other members of the Lisp family tree, Clojure code is a valid data structure. This makes Lisp great for metaprogramming, as its statements can be accessed and manipulated like any other data structure.ย 

How do you hire a Clojure developer?

You can source Clojure talent on Upwork by following these three steps:

  • Write a project description. Youโ€™ll want to determine your scope of work and the skills and requirements you are looking for in a Clojure developer.
  • Post it on Upwork. Once youโ€™ve written a project description, post it to Upwork. Simply follow the prompts to help you input the information you collected to scope out your project.
  • Shortlist and interview Clojure developers. Once the proposals start coming in, create a shortlist of the professionals you want to interview.ย 

Of these three steps, your project description is where you will determine your scope of work and the specific type of Clojure developer you need to complete your project.

How much does it cost to hire a Clojure developer?

Rates can vary due to many factors, including expertise and experience, location, and market conditions.

  • An experienced Clojure developer may command higher fees but also work faster, have more-specialized areas of expertise, and deliver higher-quality work.
  • A contractor who is still in the process of building a client base may price their Clojure development services more competitively.ย 

Which one is right for you will depend on the specifics of your project.ย 

How do you write a Clojure development job post?

Your job post is your chance to describe your project scope, budget, and talent needs. Although you donโ€™t need a full job description as you would when hiring an employee, aim to provide enough detail for a contractor to know if theyโ€™re the right fit for the project.

Job post title

Create a simple title that describes exactly what youโ€™re looking for. The idea is to target the keywords that your ideal candidate is likely to type into a job search bar to find your project. Here are some sample Clojure development job post titles:

  • Full-stack Clojure engineer needed for a fintech application
  • Seeking a Clojure developer for a web app (MongoDB, PostgreSQL, Angular)
  • Need help with a big data analytics pipeline (Apache Spark and Clojure)

Project description

An effective Clojure job post should include:ย 

  • Scope of work: From applications to data processing pipelines, list all the deliverables youโ€™ll need.ย 
  • Project length: Your job post should indicate whether this is a smaller or larger project.ย 
  • Background: If you prefer experience with certain industries, technologies, or developer tools, mention this here.ย 
  • Budget: Set a budget and note your preference for hourly rates vs. fixed-price contracts.

Clojure developer job responsibilities

Here are some examples of Clojure job responsibilities:

  • Build and deploy functional, highly scalable, secure applications
  • Write performant, well-documented, testable code
  • Collaborate with a team of developers and designers to carry products through the software development lifecycle (SDLC)

Clojure developer job requirements and qualifications

Be sure to include any requirements and qualifications youโ€™re looking for in a Clojure developer. Here are some examples:

  • Working knowledge of Clojure
  • Functional programming
  • Application development
  • Project-specific technologies (e.g., Kafka and Spark for high-throughput data streaming)