Senior Java Developer About the OpportunityWe are seeking a Senior Java Developer to join an impactful international project. This position is 100% in Spanish, offered as a contractor role and is fully remote from LATAM. Role ObjectiveTo design, develop, and implement robust and scalable backend solutions in Java, ensuring quality, performance, and adherence to best practices in enterprise environments. Main ResponsibilitiesDevelop and maintain backend applications in JavaDesign and implement RESTful APIsParticipate in architecture design and technical decision-makingApply best practices such as clean code and SOLID principlesConduct unit and integration testingEngage in code reviews and mentorshipCollaborate with teams using agile methodologiesResolve incidents in production environments

We are seeking talented Mid/Senior Java Developers to join our client's team on a full-time basis. The ideal candidates should be able to start as soon as possible. Project Overview: Government project The system is being developed from scratch and is currently in the mid-implementation phase The most intensive phase is expected to last until May, with the project planned to continue at least until August, with potential for extension. Technologies Used: Java (Spring Framework) Camunda Angular Kafka Keycloak Docker, Kubernetes, OpenShift eUI ECL Solution Logic (Brief Overview): Processes are orchestrated via Camunda Tasks are assigned to employees through API Utilizes JSON, Form.js, and Angular (eUI components) Business logic is implemented through both Camunda workers (Java) and portal modules The system consists of: an internal employee portal a citizen self-service portal Integrations: document management system, VIISP, Entra ID, with additional integrations planned. Conditions: Hourly rate between €40 - €55 Fully remote or hybrid work options available. • • Start date – ASAP

joinready seeks a Java Backend Developer to join its remote technical team. This position focuses on building backend systems and providing technical support to colleagues. Candidates should be comfortable with hands-on coding and have a solid understanding of backend development principles. What you will do Design and implement backend services using Spring Boot. Handle service discovery and configuration management with Eureka and Config Server. Develop solutions in environments that use OpenShift and Kubernetes (OSE). Apply design patterns like Circuit Breaker and Bulkhead to strengthen system resilience. Write and maintain unit tests with Mockito. Incorporate design patterns and hexagonal architecture into daily work. Assist team members in solving technical challenges. Contribute insights from previous team leadership experience. Requirements Experience with Java backend development and Spring Boot. Familiarity with Eureka, Config Server, OpenShift, and Kubernetes (OSE). Knowledge of design patterns, especially Circuit Breaker and Bulkhead. Ability to write unit tests using Mockito. Understanding of hexagonal architecture. Strong problem-solving skills and a collaborative approach. Background in team leadership is valued.

Senior Java Backend Developer (DB2 / Oracle) | Remote LATAM | USD About the OpportunityWe are seeking a highly skilled Senior Java Developer with a strong focus on database technologies (DB2 and Oracle) for a demanding international project.This position is 100% in Spanish, contract-based, and fully remote from LATAM. Role ObjectiveTo develop and optimize backend solutions in Java, emphasizing enterprise database performance, integrity, and scalability. Main ResponsibilitiesDevelop backend applications in Java integrated with DB2 and OracleDesign and optimize complex SQL queriesImplement database logic (procedures, functions, triggers)Analyze and enhance query performanceParticipate in data-oriented architecture designEnsure data integrity and efficiencyCollaborate with multidisciplinary technical teams

Senior Java Backend Developer (DB2 / Oracle) | Remote LATAM | USD About the OpportunityWe are on the lookout for a Senior Java Backend Developer with a strong focus on databases (DB2 and Oracle) for a high-demand international project.This role is 100% in Spanish, contractor modality, and fully remote from LATAM. Role ObjectiveTo develop and optimize backend solutions in Java, emphasizing enterprise database performance, integrity, and scalability. Main ResponsibilitiesDevelop backend applications in Java integrated with DB2 and OracleDesign and optimize complex SQL queriesImplement database logic (procedures, functions, triggers)Analyze and enhance query performanceParticipate in data-oriented architecture designEnsure data integrity and efficiencyCollaborate with multidisciplinary technical teams

At Rekluti, we believe that code is merely a means to an end, and our goal is to achieve engineering excellence. We are in search of technical strategists who can contribute their insights to enhance our clients' legacy. Your mission will involve spearheading the governance of distributed architectures in large-scale projects, where resilience and mastery of the Software Development Life Cycle (SDLC) are the cornerstones of every international solution we create.This role demands a comprehensive understanding of the software development lifecycle (SDLC), where your technical expertise will serve as the foundation for managing distributed architectures and ensuring the resilience of critical enterprise systems in international environments.

Senior Java Backend Developer (DB2 / Oracle) | Remote LATAM | USD About the OpportunityWe are seeking a Senior Java Backend Developer with a strong focus on database systems (DB2 and Oracle) for a high-demand international project.This position is 100% in Spanish, contractor-based, and fully remote from LATAM. Role ObjectiveTo develop and optimize backend solutions in Java, emphasizing enterprise databases while ensuring performance, data integrity, and scalability. Main ResponsibilitiesDevelop backend applications in Java integrated with DB2 and Oracle.Design and optimize complex SQL queries.Implement database logic (procedures, functions, triggers).Analyze and enhance query performance.Participate in data-oriented architecture design.Ensure data integrity and efficiency.Collaborate with multidisciplinary technical teams.

AI Trainer - Expert Java Developers About ProlificAt Prolific, we are not just another name in the AI realm; we are on a mission to create the largest repository of quality human data worldwide.With over 35,000 AI developers, researchers, and organizations leveraging Prolific to gather insights from a diverse pool of paid study participants, we are revolutionizing the landscape of data collection.The OpportunityWe are currently seeking skilled Java Developers to assist in training and evaluating state-of-the-art AI models. If you possess the requisite experience, you will receive an assessment to evaluate your capabilities for AI-related tasks. Successful candidates will be invited to join Prolific as Domain Expert participants, where you will be compensated for training and evaluating powerful AI models.Typically, researchers offer $40/hour for each completed AI task. Please be prepared to undertake paid tasks that require one hour of uninterrupted focus, with many tasks being shorter in duration. Your QualificationsProven Java development skills with verifiable professional experience in the field.Willingness to take our skills verification test to assess your fit for our Domain Expert participant pool.Meticulous attention to detail and the ability to focus on complex tasks for up to an hour at a time.A reliable and high-speed internet connection along with access to a computer.Willingness to self-report your earnings, as our participants are classified as self-employed.A PayPal account to facilitate payments from our clients.Your ResponsibilitiesCompleting AI training tasks that include analyzing, editing, and programming in Java.

At Rekluti, we believe that while code is the medium, engineering excellence is the ultimate goal. We are on the lookout for technical strategists who can contribute their vision to enhance our clients' legacy. Your mission will involve leading the governance of distributed architectures in large-scale projects, where resilience and mastery of the Software Development Life Cycle (SDLC) serve as the cornerstones of every international solution we create.In this role, you will need a comprehensive understanding of the software development lifecycle (SDLC), where your technical experience will be pivotal for the governance of distributed architectures and the resilience of critical enterprise systems in international environments.

AI Trainer for Advanced Java Developers About ProlificAt Prolific, we are not just another name in the AI industry; we are on a mission to create the largest repository of high-quality human data globally.Over 35,000 AI developers, researchers, and organizations utilize Prolific to collect data from compensated study participants who possess a diverse array of experiences, knowledge, and skills.The RoleWe are seeking skilled Java Developers to assist in training and evaluating state-of-the-art AI models. If you meet the qualifications, we will provide you with an assessment to evaluate your skills and fit for AI tasks. Successful candidates will be welcomed as Domain Expert participants, where you will be compensated for training and assessing powerful AI models.Researchers typically offer $40/hour for each AI task completed. You should be prepared to undertake paid tasks that require a full hour of undistracted work, although many tasks may take less time. QualificationsProficient Java developer skills with verifiable professional experience in Java development.Willingness to complete our skills verification test to determine eligibility for our Domain Expert participant pool.Meticulous attention to detail and the capacity to focus on complex tasks for up to an hour at a time.Dependable and high-speed internet connection along with access to a computer.Willingness to self-report earnings, as our participants are classified as self-employed.A PayPal account to facilitate payment from our clients.Your ResponsibilitiesCompleting AI training tasks that encompass analyzing, editing, and coding in Java.

Join Binance, the premier global blockchain ecosystem that powers the world’s largest cryptocurrency exchange by trading volume and user base. With a trusted community of over 300 million users across more than 100 countries, we pride ourselves on our industry-leading security measures, transparency in user funds, rapid trading engine performance, and extensive liquidity. Our diverse range of offerings spans trading, finance, education, research, payments, institutional services, Web3 features, and beyond. At Binance, we harness the transformative potential of digital assets and blockchain technology to create an inclusive financial ecosystem that enhances monetary freedom and improves global financial accessibility.Become a key member of the Exchange Service team at Binance, where we strive to deliver an exceptional trading experience to over 250 million users worldwide. As a Senior Java Developer, you will play a vital role in developing and maintaining our core trading platform, ensuring its operational efficiency and reliability. Your contributions will help reinforce Binance’s position as the top choice for cryptocurrency enthusiasts globally.

Are you an experienced software engineer with a passion for Java and a deep understanding of infrastructure and systems? Join us in transforming how artificial intelligence comprehends large-scale software architectures. As AI models are increasingly utilized in enterprise settings, the need for expert guidance in performance, reliability, and cloud architecture is paramount. This is where your expertise comes into play. We are looking for Software Infrastructure Specialists who are fluent in Java and possess comprehensive knowledge in systems thinking, architectural design, performance engineering, and quality assurance. In this role, you'll engage with advanced AI models, addressing complex infrastructure scenarios that involve JVM-based services, distributed systems, cloud-native environments, and enterprise-grade architectures. You will also document the challenges these models face regarding correctness, scalability, and operational behavior. Your typical responsibilities will include engaging with the model on Java-focused infrastructure and platform engineering tasks, verifying architectural decisions concerning concurrency, latency, throughput, and resource utilization. You will assess testing strategies at both the infrastructure and application levels, analyze deployment and reliability risks, capture reproducible failure modes, and provide structured feedback to enhance model evaluation and reasoning frameworks. A bachelor's, master's, or PhD in computer science, software engineering, or a related field is preferred. Hands-on experience with enterprise Java systems, cloud infrastructure, platform engineering, or roles adjacent to Site Reliability Engineering (SRE) and DevOps is highly regarded. Exceptional written communication skills and the ability to clearly articulate system behaviors and design decisions are essential for this role. Are you ready to leverage your engineering skills to build the knowledge base for the AI of tomorrow? Apply now and become a part of the team that will shape future technology.

Join Binance, the world's foremost blockchain ecosystem that powers the largest cryptocurrency exchange by trading volume and user base. Trusted by over 300 million individuals across more than 100 countries, we prioritize industry-leading security, transparency of user funds, rapid trading engine performance, deep liquidity, and an exceptional array of digital asset products. Our diverse offerings encompass trading, finance, education, research, payments, institutional services, Web3 functionalities, and much more. At Binance, we harness the potential of digital assets and blockchain technology to foster an inclusive financial ecosystem, enhancing monetary freedom and improving financial accessibility globally.About the TeamThe Binance Cloud team provides a comprehensive exchange infrastructure solution that allows qualified entities to seamlessly launch and operate a cryptocurrency exchange. By leveraging Binance's state-of-the-art technology, Binance Cloud ensures top-tier liquidity, robust regulatory compliance, and reliable system stability, with extensive customization options available.We are in search of a mid to senior-level Java Engineer who possesses a strong background in developing trading systems. The ideal candidate will have a proven track record in designing systems that prioritize high concurrency and high availability.

About the RoleWe are seeking an experienced and motivated Senior Backend Engineer (generalist) with a robust background in Java and preferably Kotlin to join our dynamic team. In this remote position, you will play a pivotal role in developing our product from the ground up. Your responsibilities will include integrating with enterprise systems, scraping and analyzing large datasets, and creating systems that empower users to utilize LLMs for generating scalable sales insights—extracting critical information from millions of public documents.You could be the ideal candidate if you: Are an accomplished developer with experience in Enterprise B2B SaaS or Big Data processing within the JVM ecosystem, with Kotlin as a plus.Have a history of impactful engineering experience in a startup or smaller organization.Are enthusiastic about engaging in all aspects of backend development and have experience collaborating within small teams in fast-paced startup environments.Possess familiarity with the following technologies: Kotlin (Backend)Google Cloud Platform (GCP)Google Cloud SQL for PostgreSQLFirebasePythonHave experience with any of the following (not mandatory):Natural Language GenerationEnterprise API integrationsPrompt EngineeringLarge Scale Web Scraping & ParsingAre proficient in both written and spoken English.Our Work CultureCustomer-Centric Approach - We pride ourselves on putting customers at the heart of everything we do.Rapid Execution - We operate with a sense of urgency and decisiveness, always striving to gain momentum.Joy in the Journey - We intentionally create an environment that is both energizing and enjoyable, fostering camaraderie and resilience within our teams.Hands-On Engagement - We believe that the best ideas emerge from close engagement with our work, embracing challenges and complexities.

Join Binance, the foremost global blockchain ecosystem and the world’s largest cryptocurrency exchange, serving over 300 million users across 100+ countries. Renowned for our exceptional security, transparency in user funds, rapid trading engine, and extensive digital asset offerings, we are at the forefront of building an inclusive financial ecosystem. Our diverse services span trading, finance, education, research, payments, institutional solutions, and Web3 innovations, all aimed at advancing financial freedom and access worldwide.We are on the lookout for a talented Backend Java Engineer to join our Global Payment Card, Fiat team. This role is ideal for a seasoned professional with around 5 years of experience in backend development, specifically with Java technologies. You will be instrumental in architecting and developing robust, scalable, and secure payment solutions. If you possess a solid foundation in payment systems or fintech and are passionate about Web3 and AI technologies, this is a remarkable opportunity to be part of our innovative global payment initiatives.

Join Us in Shaping the Future of Video CommerceYour RoleAt Axonista, an award-winning video technology leader, we empower the world’s most innovative media companies and brands to create and launch dynamic interactive video experiences. Our platform supports everything from shoppable videos to streaming services, serving clients like QVC, HSN, WaterBear, Virgin Media, and the Irish Film Institute.We are seeking a skilled Developer Advocate to enhance our Developer Experience on our platform. In this role, you will enable our Customers, Partners, and internal App teams to swiftly create impactful video-first applications across Web, Mobile, Smart TVs, and Set Top Boxes.This position is fully remote, welcoming applications from Ireland, Croatia, or Spain.Your Responsibilities Develop and manage our Developer Hub, producing a variety of content including how-tos, articles, whitepapers, videos, blogs, and newsletters.Gather and analyze feedback from partners, customers, and internal App Development teams.Collaborate closely with the product team to enhance our platform features.Assess developer platform and API/SDK usage to identify improvement opportunities.Partner with Platform and App Dev teams to define new and upgraded SDKs.Utilize friction logging and dog-fooding to drive forward the developer platform.Act as a liaison for our developer community, offering technical support and guidance.Work alongside our App Dev teams to produce best-practice sample code and applications to streamline the development of new apps on our platform.Your QualificationsAs you join our multi-functional, multi-country teams with expertise in Web, Mobile, and OTT applications, you should ideally possess:5+ years of experience in a technical role.Proven experience as a Developer Advocate, DevRel, or Sales Engineer.Familiarity with REST APIs and API integrations, along with knowledge of GraphQL.Understanding of mobile app development methodologies.Exceptional ability to write clear and impactful technical documentation.A proactive approach to onboarding new developers.Strong communication and interpersonal skills to engage with developers effectively.

Join Binance, the forefront of the global blockchain revolution, and be part of the team driving innovation in the world’s largest cryptocurrency exchange, recognized for its unparalleled trading volume and user base. With over 300 million users across 100+ countries, we are committed to providing industry-leading security, transparency in user funds, rapid trading engine capabilities, and a vast array of digital asset products. Our offerings encompass trading, finance, education, research, payments, institutional services, Web3 functionalities, and more. Our mission is to harness the potential of digital assets and blockchain technology to create an inclusive financial ecosystem, advancing monetary freedom and enhancing financial access for individuals globally.We are actively seeking a Senior Java Backend Engineer (Web3 Data) to spearhead the design and development of cutting-edge on-chain data processing and computation pipelines. In this pivotal role, you will architect high-performance, scalable, and reliable backend systems that efficiently parse, transform, and analyze blockchain data in real-time across multiple chains.This position demands a robust background in Java microservices, distributed systems, and data-intensive computation, coupled with a deep understanding of Web3 ecosystems and on-chain data analytics. You will collaborate closely with blockchain researchers, data engineers, and backend teams to deliver low-latency APIs and generate large-scale data insights that power our DeFi and on-chain analytics products.

Join Uploadcare, a premier file upload and delivery platform that empowers developers globally to manage digital content effortlessly through our advanced suite of APIs. Founded in 2011 by passionate web development and image processing experts, we recognized the challenges of file management and created a scalable, all-in-one solution. Over the last 13 years, Uploadcare has rapidly expanded and proudly serves esteemed clients such as PandaDoc, Buffer, and Zapier.As a proud member of Tiugo Technologies, we are part of a leading suite of API-first platforms dedicated to content creation and digital collaboration, which includes CKEditor, TinyMCE, and ButterCMS. Our tools have facilitated millions of software applications and websites, powering communication and content creation for organizations ranging from Microsoft to NASA. While our name might not always be recognized, our technology is widely used.Discover more about Uploadcare at uploadcare.comYour Role:As a pivotal member of our globally distributed backend team, you will enjoy the freedom to innovate and the support to thrive. Your skills will be crucial in developing and maintaining robust APIs for file uploading and management, ensuring our platform leads in efficiency and reliability.If you are enthusiastic about crafting cutting-edge solutions and excel in a dynamic, collaborative environment, we are eager to connect with you.Key Responsibilities:Design and sustain our file platform to uphold our high standards for performance and reliability.Integrate with third-party services to enhance functionality and user experience.Develop and support APIs for file uploading and management, ensuring efficient and secure data handling.Build infrastructure for webhooks and events to guarantee our platform can efficiently process and respond to external signals.Collaborate closely with fellow developers, product managers, and stakeholders across the organization to meet project goals and contribute to the overall success of our initiatives.

Join Our Team!Welcome to Xebia, where innovation meets expertise! For almost 20 years, we've been at the forefront of crafting digital solutions for a diverse range of clients globally, including renowned brands such as UPS, McLaren, Aviva, and Deloitte. Our passion for Cloud-based technologies drives us to maintain strong partnerships with industry giants like Amazon Web Services (AWS), Microsoft Azure, and Google Cloud Platform (GCP). Notably, we proudly hold the title of the first AWS Premier Consulting Partner in Poland.Previously known as PGS Software, we became a part of the Xebia Group in 2021, joining a collective of companies dedicated to making a significant impact in the tech world. At Xebia, we embody innovation and excellence, consistently earning global recognition and leading in thought leadership—offering our teams the chance to engage in groundbreaking projects.Our mission is encapsulated in one word: Authority. We aspire to be acknowledged as the foremost authority in our field. What sets us apart? It’s our commitment to details, a culture of knowledge, and a belief in everyone's potential, all aimed at fostering personal and professional growth. We invite you to experience this firsthand!We’re eager to learn about you!Send us your resume to begin your journey with #Xebia.Your Role:Design, develop, and maintain robust and scalable backend services and APIs utilizing Node.js and TypeScript, ensuring optimal performance and dependability.Architect and implement RESTful and/or GraphQL APIs, alongside microservices-based solutions tailored to meet intricate business needs.Collaborate with cross-functional teams to define and implement technical solutions, enhance system architecture, and advocate for engineering best practices.Optimize database schemas and queries, ensuring data integrity, security, and performance across both relational and non-relational databases.Support DevOps and cloud initiatives by engaging with CI/CD pipelines, containerization, monitoring, and cloud infrastructure, to ensure seamless deployments and system observability.