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Java React Developer Jobs

3,601 active opportunities · Updated for October 2026

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Explore current java react developer jobs. Use filters to narrow by work mode, employment type, experience and date posted.

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YipitData
📍 United Kingdom; Remote, United States• Remote
19mo ago

About Us: YipitData is the leading market research and analytics firm for the disruptive economy and most recently raised $475M from The Carlyle Group at a valuation of over $1B. Every day, our proprietary technology analyzes billions of alternative data points to uncover actionable insights across sectors like software, AI, cloud, e-commerce, ridesharing, and payments. Our data and research teams transform raw data into strategic intelligence, delivering accurate, timely, and deeply contextualized analysis that our customers—ranging from the world’s top investment funds to Fortune 500 companies—depend on to drive high-stakes decisions. From sourcing and licensing novel datasets to rigorous analysis and expert narrative framing, our teams ensure clients get not just data, but clarity and confidence. We operate globally with offices in the US (NYC, Austin, Miami, Mountain View) APAC (Hong Kong, Shanghai, Beijing, Guangzhou, Singapore), and India. Our award-winning, people-centric culture—recognized by Inc. as a Best Workplace for three consecutive years—emphasizes transparency, ownership, and continuous mastery. What It’s Like to Work at YipitData: YipitData isn’t a place for coasting—it’s a launchpad for ambitious, impact-driven professionals. From day one, you’ll take the lead on meaningful work, accelerate your growth, and gain exposure that shapes careers. Why Top Talent Chooses YipitData: Ownership That Matters : You’ll lead high-impact projects with real business outcomes Rapid Growth : We compress years of learning into months Merit Over Titles : Trust and responsibility are earned through execution, not tenure Velocity with Purpose : We move fast, support each other, and aim high—always with purpose and intention Who Thrives Here? We hire sprinters, not coasters—people who: Choose growth over comfort Lead through challenges Are energized by high expectations It’s not for everyone, and that’s intentional. If your ambition is matched by your work ethic—and you'

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About Appier Appier is a software-as-a-service (SaaS) company that uses artificial intelligence (AI) to power business decision-making. Founded in 2012 with a vision of democratizing AI, Appier’s mission is turning AI into ROI by making software intelligent. Appier now has 17 offices across APAC, Europe and U.S., and is listed on the Tokyo Stock Exchange (Ticker number: 4180). Visit www.appier.com for more information. About the role We are seeking skilled and motivated Senior Software Engineer, Backend Development(BotBonnie) to join our dynamic team. As a Senior Backend Development (BotBonnie), you will play a crucial role in designing, developing, and maintaining the server-side applications that power our web. Responsibilities Develop efficient and scalable backend services using Node.js, Express.js, and other relevant technologies. Collaborate with cross-functional teams, including frontend developers, product managers, and designers, to design and implement robust APIs and web services. Ensure the performance, security, and reliability of server-side applications, identifying and resolving bottlenecks and bugs as necessary. Integrate with databases and data storage solutions, such as MongoDB, MySQL, Redis, RedShift or other NoSQL databases. Implement unit tests and conduct code reviews to maintain high code quality and foster a collaborative development environment. Participate in architectural discussions and contribute innovative ideas to improve system architecture and performance. Stay up-to-date with the latest trends and advancements in Node.js and backend technologies to propose suitable improvements to existing systems. Troubleshoot and debug production issues, providing timely resolutions and minimizing downtime. Optimize applications for maximum speed and scalability, considering factors like caching, load balancing, and distributed systems. Continuously improve development processes and best practices to ensure efficient and reliab

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Hyreo
📍 Bengaluru• Full-time
23mo ago

Software Engineer Job Description About the Role: We are seeking a talented and motivated Software Engineer to join our dynamic team. As a Software Engineer, you will play a crucial role in designing, developing, and maintaining high-quality software solutions. You will collaborate with cross-functional teams to deliver innovative products that meet the needs of our users. Responsibilities: Design, develop, and implement software solutions using various programming languages and technologies. Write clean, efficient, and well-documented code. Conduct thorough testing and debugging to ensure software quality. Collaborate with other team members to brainstorm ideas and solve problems. Stay up-to-date with the latest technologies and industry trends. Participate in code reviews and provide constructive feedback. Troubleshoot and resolve technical issues. Qualifications: Bachelor's degree in Computer Science, Engineering, or a related field. Strong programming skills in at least one of the following languages: Java, Python, C++, or JavaScript. Experience with software development methodologies (Agile, Scrum, etc.). Knowledge of database systems (SQL, NoSQL). Excellent problem-solving and analytical skills. Strong communication and teamwork abilities. Experience with cloud platforms (AWS, Azure, GCP) is a plus. What We Offer: Competitive salary and benefits package. Opportunities for professional growth and development. A collaborative and supportive work environment. The chance to work on cutting-edge projects. If you are passionate about technology and want to contribute to innovative projects, we encourage you to apply. To Apply: Please submit your resume and cover letter to [email protected] Please note that this is a general job description and may vary based on the specific requirements of the company and role.

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Hyreo
📍 Bengaluru• Full-time
23mo ago

Software Engineer Job Description About the Role: We are seeking a talented and motivated Software Engineer to join our dynamic team. As a Software Engineer, you will play a crucial role in designing, developing, and maintaining high-quality software solutions. You will collaborate with cross-functional teams to deliver innovative products that meet the needs of our users. Responsibilities: Design, develop, and implement software solutions using various programming languages and technologies. Write clean, efficient, and well-documented code. Conduct thorough testing and debugging to ensure software quality. Collaborate with other team members to brainstorm ideas and solve problems. Stay up-to-date with the latest technologies and industry trends. Participate in code reviews and provide constructive feedback. Troubleshoot and resolve technical issues. Qualifications: Bachelor's degree in Computer Science, Engineering, or a related field. Strong programming skills in at least one of the following languages: Java, Python, C++, or JavaScript. Experience with software development methodologies (Agile, Scrum, etc.). Knowledge of database systems (SQL, NoSQL). Excellent problem-solving and analytical skills. Strong communication and teamwork abilities. Experience with cloud platforms (AWS, Azure, GCP) is a plus. What We Offer: Competitive salary and benefits package. Opportunities for professional growth and development. A collaborative and supportive work environment. The chance to work on cutting-edge projects. If you are passionate about technology and want to contribute to innovative projects, we encourage you to apply. To Apply: Please submit your resume and cover letter to [email protected] Please note that this is a general job description and may vary based on the specific requirements of the company and role.

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Instawork
📍 Bengaluru• Full-time
31mo ago

Instawork is on a mission to create meaningful economic opportunities for skilled hourly professionals in communities around the globe. Our AI-powered labor marketplace helps local businesses scale, and enables global technology companies to push the frontiers of robotics and AI. Backed by world-class investors like Benchmark, Spark Capital, Craft Ventures, Greylock, Y Combinator, and others, we’re looking for exceptional talent to reimagine the way the world works. At our labor marketplace tech company, we believe that even in the age of AI, the core of success comes down to good people doing honest work. We're seeking a detail-oriented and automation-savvy Product Operations Analyst to help us optimize our operational processes and ensure data accuracy across our platforms. This is a fantastic opportunity to grow your career at the intersection of operations, data, and intelligent automation. Who You Are: Automation Enthusiast: You're passionate about eliminating manual work through automation. You've built workflows using tools like n8n, Zapier, or Make.com, and you're always looking for the next process to optimize. AI-Powered Problem Solver: You actively leverage AI tools like ChatGPT, Claude, or other LLMs to enhance your productivity, solve complex problems, and generate insights. You see AI as a powerful co-pilot in your daily work. Data-Driven & Analytical: You're comfortable diving into databases using SQL, analyzing trends in Excel or Google Sheets, and creating dashboards to visualize operational metrics. You use data to drive decisions and measure impact. Technical Tinkerer: You enjoy building solutions using no-code/low-code platforms like Replit, Retool, or similar tools. You're not afraid to write simple scripts or work with APIs to connect systems and automate workflows. Process Optimizer: You have a natural instinct for identifying inefficiencies and redesigning processes. You're organized, detail-oriented, and obsessed with creating scalable,

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Palantir
📍 Washington• Full-time• Hybrid• $135K – $200K/yr
37mo ago

A World-Changing Company Palantir builds the world’s leading software for data-driven decisions and operations. By bringing the right data to the people who need it, our platforms empower our partners to develop lifesaving drugs, forecast supply chain disruptions, locate missing children, and more. The Role We’re looking for Forward Deployed Infrastructure Engineers who can help us build, operate, and maintain high-performance, scalable, and reliable services for Palantir platforms, products, and deployments. You'll get to use your creativity to develop novel solutions to evolving challenges and automate processes wherever possible, using whichever tools are best for the job including industry-leading LLM and AI technology! As a Forward Deployed Infrastructure Engineer, every day is different! You will be developing software and owning reliability and operations for software systems that are critical to solving our government’s greatest challenges. We strongly believe in engineering teams being responsible for the operations of their services in production. As such, you’ll work closely with both forward deployed teams and product teams to participate in sensible, scalable, systems design and share responsibility with them in diagnosing, resolving, and preventing production issues. Core Responsibilities Handle support and operations of Palantir software, including monitoring and alerting, configuration management, and upgrades Deploy new Palantir products across many production environments and perform migrations to the latest infrastructure types Debug, improve, and optimize Palantir’s services and infrastructure with a focus on long-term reliability and scalability Reduce manual operations and automate workflows, processes, and/or runbooks where possible Provide technical troubleshooting support for production issues, ensuring timely resolution and minimal impact on operations. Participate in a support on-call schedul

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Palantir
📍 United States• Full-time• Hybrid• $135K – $200K/yr
37mo ago

A World-Changing Company Palantir builds the world’s leading software for data-driven decisions and operations. By bringing the right data to the people who need it, our platforms empower our partners to develop lifesaving drugs, forecast supply chain disruptions, locate missing children, and more. The Role We’re looking for Forward Deployed Infrastructure Engineers who can help us build, operate, and maintain high-performance, scalable, and reliable services for Palantir platforms, products, and deployments. You'll get to use your creativity to develop novel solutions to evolving challenges and automate processes wherever possible, using whichever tools are best for the job including industry-leading LLM and AI technology! As a Forward Deployed Infrastructure Engineer, every day is different! You will be developing software and owning reliability and operations for software systems that are critical to solving our government’s greatest challenges. We strongly believe in engineering teams being responsible for the operations of their services in production. As such, you’ll work closely with both forward deployed teams and product teams to participate in sensible, scalable, systems design and share responsibility with them in diagnosing, resolving, and preventing production issues. Core Responsibilities Handle support and operations of Palantir software, including monitoring and alerting, configuration management, and upgrades Deploy new Palantir products across many production environments and perform migrations to the latest infrastructure types Debug, improve, and optimize Palantir’s services and infrastructure with a focus on long-term reliability and scalability Reduce manual operations and automate workflows, processes, and/or runbooks where possible Provide technical troubleshooting support for production issues, ensuring timely resolution and minimal impact on operations. Participate in a support on-call schedul

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Palantir
📍 United States• Internship• Hybrid• From $10.5K/mo
51mo ago

A World-Changing Company Palantir builds the world’s leading software for data-driven decisions and operations. By bringing the right data to the people who need it, our platforms empower our partners to develop lifesaving drugs, forecast supply chain disruptions, locate missing children, and more. The Role Information Security's mission is to secure Palantir, and by extension, protect our customers and the critical data they trust us with. We want someone whose technical skill is matched by integrity and genuine curiosity about security. You'll thrive here if you're self-motivated, collaborative, and energized by hard problems with no manual. Much of our work is ambiguous by design; if chasing clear outcomes down unclear paths excites you more than it unsettles you, you'll fit right in. This internship comes with real impact, real autonomy, and the resources to make meaningful security improvements across Palantir. Backgrounds vary. What matters is curiosity, tenacity, and a drive to become a world-class security engineer. You'll be treated like a full-time engineer, given real ownership, trusted with real projects, and accountable for outcomes our customers depend on. Core Responsibilities Impact: We address meaningful and exciting projects that change the security of Palantir for the better. Ownership: We see projects through from beginning to end, working through any obstacles we may encounter. We trust each other to effectively handle time and priorities and give people the space to think for themselves. Collaboration: We work internally with people from a variety of backgrounds. We also work externally with our customers, to understand and tackle their problems. Growth: We believe experiential learning is one of the best teachers and encourage ourselves and our peers to seek new challenges and opportunities for growth, as well as find new ways to innovate and share knowledge. What We Value Strong desire to own i

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Palantir
📍 Washington• Full-time• Hybrid• $125K – $185K/yr
79mo ago

A World-Changing Company Palantir builds the world’s leading software for data-driven decisions and operations. By bringing the right data to the people who need it, our platforms empower our partners to develop lifesaving drugs, forecast supply chain disruptions, locate missing children, and more. The Role We’re looking for Site Reliability Engineers who can help us build, operate, and maintain high-performance, scalable, and reliable services for our production infrastructure, across both cloud & on-prem environments. Site Reliability Engineers combine engineering experience and an innate drive to improve existing systems and processes, with the creativity to develop novel solutions to evolving challenges. Our team strives to automate processes wherever possible, using whichever tools are best for the job. You’ll be the experts for the environments that you operate infrastructure in, helping partner teams build & configure their software to operate reliably within. We strongly believe in engineering teams being responsible for the operations of their services in production. In this role, you’ll work closely with engineers to advocate and participate in sensible, scalable, systems design and share responsibility with them in diagnosing, resolving, and preventing production issues. Core Responsibilities Maintaining availability of cloud & physical Linux servers that power the Palantir platform in air-gapped production environments Design, deploy, and operate infrastructure to support customer & product requirements via modern orchestration & monitoring platforms. Collaborate closely with product teams on requirements & SLOs for deploying software into air-gapped environments. Identifying, troubleshooting, and solving network & systems issues Scripting to automate away routine operational tasks Provide technical troubleshooting support for production issues, ensuring timely resolution and m

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Palantir
📍 Denver• Full-time• Hybrid• $95K – $142K/yr
96mo ago

A World-Changing Company Palantir builds the world’s leading software for data-driven decisions and operations. By bringing the right data to the people who need it, our platforms empower our partners to develop lifesaving drugs, forecast supply chain disruptions, locate missing children, and more. The Role As a Security Systems Engineer at Palantir, you are responsible for implementing, designing, and maintaining the physical security systems that ensure the protection of Palantir’s people, assets, intellectual property, and reputation. You lead research and evaluations for the latest technology, security infrastructure, policies, procedures, systems, and applications, looking for easy-to-use capabilities that reduce button clicks and ultimately give time back to the operator. You will be collaborating with technical teams to develop and maintain end-to-end project plans and ensure on-time delivery. Your technical expertise is second only to your integrity and genuine passion for security and technology. As a member of the Global Security and Investigations team, you work with security professionals, architects, lawyers, and software and network engineers to deliver a safe and secure environment for your fellow employees. Palantir is a global company, so you'll lead physical security projects all over the world. You'll work hard to break down barriers between teams by communicating your knowledge and goals effectively across time zones and other physical and virtual barriers. *Please note this role is NOT for cyber security or information security positions* Core Responsibilities Design and oversee the technical aspects of your projects from conception to full deployment. Systems naturally break and need maintenance. You'll work with vendors and end users to find the best solutions for a problem, in the shortest possible time. Leverage both system and software engineering skills in order to address the needs of all teams within Globa

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Palantir
📍 United States• Full-time• Hybrid• $95K – $142K/yr
99mo ago

A World-Changing Company Palantir builds the world’s leading software for data-driven decisions and operations. By bringing the right data to the people who need it, our platforms empower our partners to develop lifesaving drugs, forecast supply chain disruptions, locate missing children, and more. The Role As a Security Systems Engineer at Palantir, you are responsible for implementing, designing, and maintaining the physical security systems that ensure the protection of Palantir’s people, assets, intellectual property, and reputation. You lead research and evaluations for the latest technology, security infrastructure, policies, procedures, systems, and applications, looking for easy-to-use capabilities that reduce button clicks and ultimately give time back to the operator. You will be collaborating with technical teams to develop and maintain end-to-end project plans and ensure on-time delivery. Your technical expertise is second only to your integrity and genuine passion for security and technology. As a member of the Global Security and Investigations team, you work with security professionals, architects, lawyers, and software and network engineers to deliver a safe and secure environment for your fellow employees. Palantir is a global company, so you'll lead physical security projects all over the world. You'll work hard to break down barriers between teams by communicating your knowledge and goals effectively across time zones and other physical and virtual barriers. *Please note this role is NOT for cyber security or information security positions* Core Responsibilities Design and oversee the technical aspects of your projects from conception to full deployment. Systems naturally break and need maintenance. You'll work with vendors and end users to find the best solutions for a problem, in the shortest possible time. Leverage both system and software engineering skills in order to address the needs of all teams within Globa

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Palantir
📍 Palo Alto• Full-time• Hybrid• $95K – $142K/yr
120mo ago

A World-Changing Company Palantir builds the world’s leading software for data-driven decisions and operations. By bringing the right data to the people who need it, our platforms empower our partners to develop lifesaving drugs, forecast supply chain disruptions, locate missing children, and more. The Role As a Security Systems Engineer at Palantir, you are responsible for implementing, designing, and maintaining the physical security systems that ensure the protection of Palantir’s people, assets, intellectual property, and reputation. You lead research and evaluations for the latest technology, security infrastructure, policies, procedures, systems, and applications, looking for easy-to-use capabilities that reduce button clicks and ultimately give time back to the operator. You will be collaborating with technical teams to develop and maintain end-to-end project plans and ensure on-time delivery. Your technical expertise is second only to your integrity and genuine passion for security and technology. As a member of the Global Security and Investigations team, you work with security professionals, architects, lawyers, and software and network engineers to deliver a safe and secure environment for your fellow employees. Palantir is a global company, so you'll lead physical security projects all over the world. You'll work hard to break down barriers between teams by communicating your knowledge and goals effectively across time zones and other physical and virtual barriers. *Please note this role is NOT for cyber security or information security positions* Core Responsibilities Design and oversee the technical aspects of your projects from conception to full deployment. Systems naturally break and need maintenance. You'll work with vendors and end users to find the best solutions for a problem, in the shortest possible time. Leverage both system and software engineering skills in order to address the needs of all teams within Globa

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Alcumus
📍 Montreal• Full-time• Hybrid
Just now

At Veriforce, we build innovative technology that helps create safer workplaces. Our software supports a global network of responsible hiring clients, suppliers, contractors and partners. We take the complexity out of compliance for more than 50,000 organisations worldwide, helping them protect their people, their operations and the planet. As a Junior Software Development Engineer in Test (SDET), you will support the delivery of reliable, high-quality software by performing manual testing and contributing to automated testing. Working alongside developers, product team members and more experienced quality engineers, you will help identify defects, validate new functionality and continuously improve our testing processes. This is an excellent opportunity for someone early in their software testing career who wants to develop their technical skills in test automation, API testing and continuous delivery. Testing and Quality Assurance Collaborate with developers, product team members and Scrum teams to understand requirements and acceptance criteria. Create, document and maintain clear test cases and test scenarios. Perform manual functional, regression, integration and exploratory testing. Validate new features, enhancements, customisations and system integrations. Identify, document and track software defects, providing clear steps for reproduction. Retest resolved defects and complete regression testing before releases. Support User Acceptance Testing by helping business stakeholders validate new functionality. Maintain accurate documentation of test cases, test results and identified defects. Test Automation Develop and maintain automated test scripts with guidance from experienced team members. Use tools such as Playwright or Cypress to automate repeatable application tests. Review automated test results and investigate failures. Help improve automated test coverage across key user journeys. Learn and apply test automation standards and development best practices

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OKX
📍 Central, Singapore
Just now

OKX will be prioritising applicants who have a current right to work in Singapore, and do not require OKX's sponsorship of a visa. Who We Are At OKX, we believe that the future will be reshaped by crypto, and ultimately contribute to every individual's freedom. OKX is a leading crypto exchange, and the developer of OKX Wallet, giving millions access to crypto trading and decentralized crypto applications (dApps). OKX is also a trusted brand by hundreds of large institutions seeking access to crypto markets. We are safe and reliable, backed by our Proof of Reserves. Across our multiple offices globally, we are united by our core principles: We Before Me , Do the Right Thing , and Get Things Done . These shared values drive our culture, shape our processes, and foster a friendly, rewarding, and diverse environment for every OK-er. OKX is part of OKG, a group that brings the value of Blockchain to users around the world, through our leading products OKX, OKX Wallet, OKLink and more. About The Team The SRE team is dedicated to deeply integrating large language models (LLMs), AI Agents, and engineering platform capabilities to build an intelligent application system for R&D, operations, stability, and business scenarios. By creating an AI application architecture that is observable, evaluable, governable, and continuously evolving, the team is driving the company's shift from "tool-assisted" to "intelligent collaboration," improving R&D efficiency, system stability, fault diagnosis efficiency, and the quality of business decisions. What You’ll Be Doing Design and build AI Harness capabilities for SRE / DevOps scenarios, including fault detection, change analysis, capacity risk identification, automated inspection, drill evaluation, and recovery recommendations. Drive the development of an automated RCA (Root Cause Analysis) system, combining logs, metrics, distributed tracing, events, changes, topology, and other data to achieve root ca

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Humana
📍 United States• Remote• $80.9K – $110.3K/yr
Just now

Become a part of our caring community The Automation Engineer identifies and implements solutions (hardware and software) for improvement of the high-quality automation infrastructure. The Automation Engineer work assignments are varied and frequently require interpretation and independent determination of the appropriate courses of action. The Automation Engineer designs, programs, simulates, and tests automated processes, and is responsible for detailed design specifications and other documents. Understands department, segment, and organizational strategy and operating objectives, including their linkages to related areas. Makes decisions regarding own work methods, occasionally in ambiguous situations, and requires minimal direction and receives guidance where needed. Follows established guidelines/procedures. Use your skills to make an impact Required Qualifications Bachelor's degree or relevant and equivalent years of experience in lieu of degree requirement. 4&#43; years of technical experience related to automation. Strong knowledge and understanding of Claude code Experience using AI coding assistants such as Claude code, Github, Copilot, or similar developer productivity tools. Hands-on experience leveraging Claude Code for test automation development, debugging, script generation, and software quality engineering. Experience developing automation using Java, Python, or JavaScript. Experience with Selenium, Playwright, Cypress, or equivalent frameworks. Experience testing REST APIs and backend services. Experience with CI/CD pipelines and automated deployments. 2&#43; years of experience in Software QA testing in a SAFe Agile environment. Strong experience with black box, web-service integration and server back-end testing.</

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