Java Backend Engineer - Web3 Data

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 …

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.

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

Join Binance, the world's premier blockchain ecosystem and the largest cryptocurrency exchange by trading volume and registered users. Trusted by over 230 million individuals across 100+ countries, we pride ourselves on our industry-leading security measures, transparency in user funds, rapid trading engine capabilities, deep liquidity, and an unparalleled range of digital asset products. Our offerings encompass trading, finance, education, research, payments, institutional services, Web3 features, and much more. At Binance, we harness the transformative power of digital assets and blockchain technology to create an inclusive financial ecosystem that champions monetary freedom and enhances financial access for people globally.About the Binance Accelerator ProgramThe Binance Accelerator Program is a unique, fixed-term opportunity tailored for early career talent to immerse themselves in the fast-paced Web3 landscape. You'll gain firsthand insight into the operations of Binance and uncover the intricacies of the world’s foremost blockchain ecosystem. In addition to your core responsibilities, the program emphasizes networking and professional development, helping you expand your professional connections while acquiring transferable skills that will advance your career trajectory. For more details, click here: HERE Who Can Apply We welcome current university students and recent graduates to apply.

Backend EngineerJoin Turnkey as we transform key management in the Web3 ecosystem with our innovative API focused on security, flexibility, and user experience. Our founders led the growth of Coinbase Custody to over $100M ARR, and now we are on a mission to rebuild crypto infrastructure from the ground up, tackling key security challenges to empower developers.Our vision is akin to how AWS revolutionized computing; we are developing the trustless and decentralized infrastructure that will facilitate the next generation of mass-market crypto applications, addressing the significant challenge of secure and adaptable key management.We seek passionate engineers who believe in the transformative power of crypto. As versatile engineers, we embrace diverse challenges across technologies. While we utilize Go, Typescript, and Rust in production, we value strong foundational skills and experience in creating scalable infrastructure.

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.

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.

Join Trust Wallet as a Senior Frontend Engineer in the exciting realm of Web3 trading! We are looking for talented individuals to help us build a seamless and efficient trading experience for our users. You will play a pivotal role in designing and implementing user-friendly interfaces that meet the needs of our global user base.

Join Binance, the world's leading blockchain ecosystem and largest cryptocurrency exchange by trading volume and registered users. We empower over 300 million users across more than 100 countries with our commitment to security, transparency in user funds, rapid trading engine performance, deep liquidity, and a comprehensive array of digital asset products. Our offerings span trading, finance, education, research, payments, institutional services, Web3 functionalities, and more, as we harness the potential of digital assets and blockchain technology to create an inclusive financial ecosystem that enhances the freedom of money and broadens financial access globally.We are seeking a Senior Software Engineer with 5-7 years of robust experience in Spring Boot development to architect, build, and sustain high-performance, resilient distributed systems. The ideal candidate will possess a strong foundation in Java programming, demonstrate familiarity with microservices architecture, and thrive in a dynamic and fast-paced work environment. If you are passionate about cutting-edge technology and eager to make an impact in the financial sector, we would love to hear from you!

Join Upwork, the world’s leading work marketplace, where we empower a diverse range of clients from innovative startups to over 30% of Fortune 100 companies. Our platform fosters collaboration between companies and talented professionals, unlocking their full potential.Last year, our vibrant community of skilled professionals facilitated over $3.8 billion worth of work through Upwork, allowing them to take charge of their careers by pursuing work they are passionate about.You will be part of Upwork’s Hybrid Workforce Solutions (HWS) Team, a global network of experts dedicated to supporting Upwork’s business initiatives. We are proud to have our HWS team members distributed across various locations worldwide.We are seeking a passionate and experienced Senior Backend Engineer with a strong background in Python, JavaScript, and server-side development, along with SQL skills and AWS expertise, to contribute to the Upwork Data Platform Backend.The Intelligent Data Platform team is looking for a Senior Backend Engineer to enhance the Snowflake Data Platform. This is a hands-on individual contributor role, focused on constructing, managing, and automating backend services that facilitate data ingestion, orchestration, governance, cost optimization, and compliance for a platform utilized by hundreds of internal users.

Join pod network in revolutionizing blockchain performance with groundbreaking innovations. If you have experience in optimizing systems for nanosecond-level precision and are eager to contribute to a global decentralized exchange ecosystem, this opportunity is designed for you.About the Role:We are in search of talented engineers skilled in high-frequency trading (HFT) or ultra-low-latency systems to architect and refine our execution and matching infrastructure. You will engage with the core runtime and networking stack that enables sub-millisecond order propagation and deterministic settlement across a distributed validator network.What You’ll Do:Develop and implement latency-sensitive components for the pod L1 and order book engine.Enhance network pipelines, serialization processes, and state access for optimal deterministic performance.Contribute to the development of new protocol primitives for timestamped execution and atomic batch auctions.Collaborate with researchers on incentive structures and cross-domain settlement methodologies.Qualifications:Proven experience in building or optimizing HFT systems, exchange matching engines, or low-latency trading infrastructure.Strong programming skills in systems languages such as Rust, C++, or Go.Comprehensive understanding of concurrency, networking, and performance profiling techniques.(Bonus) Familiarity with blockchain technology, consensus mechanisms, or distributed systems.What We Offer:Attractive salary packages.A high-impact role within a dynamic, growth-oriented startup.Opportunities for travel and visibility in thought leadership within the crypto community.About pod:Pod is an ambitious, early-stage Web3 startup focused on creating an innovative layer-1 protocol aimed at delivering a Web2-like experience within Web3 environments. Our team is designing a chainless, blockless, leaderless protocol that challenges traditional consensus paradigms. Discover more about pod network here.Backed by a16z crypto, 1kx, BBF, and Lemniscap, we are on the lookout for exceptional engineers to help shape the future of decentralized systems.

Join Trust Wallet as a Senior Full Stack Engineer and be at the forefront of Web3 product innovation. We are seeking an experienced engineer who is passionate about building cutting-edge solutions in the decentralized finance space. You will collaborate with a diverse team of experts to design, develop, and implement scalable applications that enhance user experience.Your role will involve working with both front-end and back-end technologies, ensuring seamless integration of various components. You will also have the opportunity to contribute to open-source projects and engage with the community to drive innovation.

About Trust WalletTrust Wallet stands as the premier non-custodial cryptocurrency wallet, earning the trust of over 200 million users worldwide in securely managing and expanding their digital assets. Our vision is to empower individuals with the freedom to own their assets, confidently engage in the evolving economy, and seize opportunities that enrich their lives. We aim to be a trusted personal companion for users, guiding them through the realms of Web3, the on-chain economy, and the emerging AI-enhanced landscape. Supporting over 10 million assets across more than 100 blockchains, Trust Wallet delivers a seamless, multi-chain experience, backed by top-tier self-custody technology, an active community, and a thriving ecosystem of partners.Job OverviewDesign and enhance user flows, wireframes, and high-fidelity mockups for Trust Wallet's innovative products and features.Conduct user research to uncover insights into user needs, behaviors, and preferences, utilizing this knowledge to drive design strategies.Partner with product managers to define and prioritize features, ensuring alignment with user expectations and business goals.Guide and mentor junior designers, offering constructive feedback and support to foster their professional growth.Collaborate closely with engineering teams to ensure the flawless implementation of design solutions while upholding high standards of quality and consistency.Engage in design critiques to contribute to the ongoing enhancement of the team's design methodologies and outputs.

About the RoleAs the Team Lead for our software development team, you will be instrumental in shaping the architecture, development, and delivery of top-tier software solutions. You will guide a talented group of developers, fostering collaboration, driving technical innovation, and ensuring robust delivery outcomes. Your role will blend hands-on coding with team leadership, empowering the team to excel in a dynamic environment.Our Tech StackLanguage: Java 17Frameworks: Spring Boot (Tomcat, Netty), Spring Data, Spring CloudArchitecture: Microservices, REST API, Message QueuesDatabase: MySQL, MyBatis, MongoDBCaching: Redis (AWS ElastiCache), ElasticSearchMessage Queue: RocketMQCloud: Kubernetes, AWSMonitoring: Grafana, Prometheus, Loki, Tempo, AWS CloudWatch, OpenTracingCI/CD: Jenkins, ArgoCDKey ResponsibilitiesLead and mentor a skilled development team across Europe, cultivating a culture of high-performance collaboration.Provide technical guidance and uphold best practices in software development, code quality, and system architecture.Engage in high-level architectural and design discussions for complex software systems.Oversee the entire development lifecycle from requirements gathering to deployment, guaranteeing timely delivery of high-quality solutions.Conduct regular code reviews, offering constructive feedback to enhance team skills and productivity.Manage team performance and support career development initiatives.Promote continuous improvement within development processes, tools, and techniques.Qualifications8+ years of software development experience, particularly in backend technologies (e.g., Java, Node.js, Python, Go, etc.).2+ years in a leadership capacity, with experience in mentoring, performance evaluations, and task allocation.Strong background in software architecture and designing scalable, reliable systems.Proven hands-on experience in backend development, with an emphasis on APIs and microservices.Exceptional communication skills in English, with the ability to manage and collaborate effectively within a diverse remote team.A passion for technology and innovation, coupled with a desire to tackle complex technical challenges.

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

About RemoteRemote is tackling one of the most pressing challenges for modern organizations – navigating global employment compliance effortlessly. We empower businesses of all sizes to hire, compensate, and manage global teams seamlessly. Guided by our core values and a forward-thinking work culture, our team is dedicated to solving ambitious problems asynchronously from around the globe. You can find Remoters working from six continents (Antarctica is the final frontier!), and all of our job openings are fully remote.Innovation is at the heart of our values, and we have integrated Automation and AI capabilities into the requirements for every role.We invite every member of the Remote team to contribute their unique talents, experiences, and cultures to help us create a best-in-class HR platform. If you are dynamic, inquisitive, driven, and ambitious, we encourage you to join us and shape the future of work! Apply today!The RoleYou will be part of a diverse team of engineers specializing in Frontend, Backend, SRE, and QA, organized into cross-functional development teams focused on specific verticals.This position is available for multiple teams, and we will determine the exact team you will join during the interview process based on business requirements and your preferences.Regardless of the specific team, you will be responsible for developing tools, APIs, and integrations for one of our products.Our backend technology stack includes Elixir and Phoenix, supported by a Postgres database. We utilize React and Next.js for our frontend development. GitLab serves as our version control and CI/CD tool, while our applications are hosted on AWS. We rely on continuous integration for our deployments, allowing multiple deployments each day. You can explore our Engineering Rulebook for further insights.What You Can Expect from This RoleEngaging and meaningful challenges that empower individuals and businesses to operate globally.An opportunity to significantly influence our business as we are still early in our journey, meaning your contributions will have a lasting impact as the company grows.A great deal of flexibility in your work environment.

#PoweringYourIngenuity At Ekumenlabs, our mission is to connect world-class technology companies with exceptional engineering talent from every corner of the globe. With a strong presence in LATAM, the USA, and Europe, we empower businesses by assembling remote engineering teams tailored to each project's unique requirements.Our teams are driven by a passion for technology and are eager to tackle challenges head-on. We value technical expertise along with a commitment to continuous learning. Each development is customized to meet project needs, and our culture encourages the exploration of new languages, tools, and frameworks. Our software engineering teams prioritize best coding practices to ensure that our system designs and developments are readable, reusable, and scalable.We are currently seeking a talented and motivated Data Engineer to join our dynamic team. In this role, you will contribute to maintaining and enhancing a critical data ingestion pipeline that supports essential decision-making processes and ensures our teams work with reliable, high-quality data.You will collaborate closely with data scientists, engineers, and various stakeholders, ensuring smooth data flow, enhancing observability, and continuously seeking ways to improve efficiency.

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.

Twindo is pioneering the transformation of the remodeling, architecture, and interior design sectors through innovative AI and computer vision technologies. Our LiDAR-enabled iPhone and iPad scans generate accurate 3D representations of homes in mere minutes, delivering interactive models with precise measurements. Our proprietary technology converts these scans into detailed, editable as-built files in industry-standard formats. Our groundbreaking technology was showcased during Apple's keynote event when the LiDAR sensor was launched, and we are currently modeling millions of square feet every month.As a globally distributed, virtual-first organization, our team spans across various regions, with significant representation in the US and Europe.We are in search of a Senior Backend Engineer to contribute to the development and maintenance of our internal platform and tools, promoting business scalability and engineering efficiency. Reporting to the Platform Team Lead, this position involves a dynamic blend of foundational backend development and DevOps responsibilities, making it perfect for individuals who thrive on diverse projects. Collaboration with our iOS, Computer Vision, Visualization & Tooling, Web, Infrastructure, and Data engineering teams, as well as other departments, will be crucial.