Java Backend Developer

Responsibilities:Design innovative solutions and implement requirements for systems including trading, risk control, asset management, and clearing and settlement on our Digital Asset Management platform.Maintain, upgrade, transform, and optimize the performance of existing systems.Employ a holistic architectural design approach to enhance local modules while continuously anticipating future challenges.Lead critical projects and address complex technical challenges effectively.Requirements:Bachelor's degree or higher in Computer Science or related fields, with a minimum of 5 years of relevant experience.Expertise in at least one programming language such as Go, C/C++, or Java; willingness to learn Go if not already familiar.Strong understanding of network programming and Linux environments, alongside a solid grasp of data structures and algorithms.Proficient in commonly utilized databases and components, including MySQL, Redis, and Kafka.Demonstrate strong analytical and problem-solving skills, with a commitment to learning, teamwork, and responsibility.Familiarity with distributed system design and experience in building high-concurrency, high-availability systems.Prior development experience within the financial sector is highly desirable.Preferred Qualifications:Experience in engineering within the financial products or digital asset domain is a plus.Fluency in both English and Chinese; experience in supporting global business operations is advantageous.

Design and implement cutting-edge Digital Asset Management trading systems.Maintain, upgrade, transform, and optimize the performance of existing systems.Oversee the overall architecture design and future-proofing of the trading system.Lead pivotal projects and collaborate in overcoming technical challenges.

Design and implement the risk control system for our cutting-edge Digital Asset Management platform.Oversee the maintenance, upgrades, transformation, and performance optimization of the existing systems.Lead the architectural design and strategic vision for the risk control asset system.Drive key projects and collaborate on overcoming technical challenges.

Lead the design and optimization of critical trading infrastructure, including matching engines and order management systems. Spearhead code development ensuring the platform can handle high-concurrency trading operations and deliver low-latency responses at millisecond precision. Conduct performance tuning for high-frequency trading scenarios, employing advanced technologies such as lock-free queues, memory pools, and zero-copy networking to enhance throughput and minimize latency.Create cohesive architectural solutions to facilitate the rapid development of products such as spot, perpetual contracts, and options, eliminating redundant workflows. Possess an in-depth understanding of derivative mechanisms to guarantee the precise implementation of complex product logics and effective risk management.Oversee troubleshooting and performance enhancements in production settings to maintain optimal system availability. Develop comprehensive end-to-end monitoring systems for real-time alerts on key metrics and performance insights.Keep pace with industry advancements, advocate for the integration of innovative technologies, and persistently refine the architecture of the trading system.

As a Senior Backend Developer specializing in Payments at fuku, you will play a vital role in designing, developing, and scaling high-performance payment systems that facilitate millions of transactions worldwide. Our payment infrastructure supports a diverse range of solutions, including international card networks, real-time QR payments, and high-volume switching platforms, ensuring optimal performance in both retail POS and e-commerce settings.In this impactful role, you will:- Architect and implement robust backend systems to integrate with major payment networks such as Visa, Mastercard, Amex, and UPI.- Develop secure, scalable solutions across the entire payment lifecycle, including authorization, clearing, settlement, and merchant onboarding.- Lead modernization efforts to transition legacy payment platforms to Linux RHEL or cloud environments.- Optimize switching systems to handle ultra-high transaction volumes, minimizing latency, ensuring resilience, and maintaining consistent uptime.- Collaborate with cross-functional teams, including product management, quality assurance, and business units, to deliver reliable, production-ready payment capabilities on a global scale.What you bring to the role:- Over 8 years of backend development experience, particularly within payment systems and transaction processing environments.- Strong expertise in C++, Linux, and scripting languages (e.g., Korn Shell) in high-availability production settings.- Proven experience with Base24, international card scheme integrations, and contemporary QR payment systems.- In-depth knowledge of databases (PostgreSQL/MySQL), messaging frameworks (IBM MQ), and performance tuning in distributed systems.- Familiarity with POS/EDC, ATM systems, and the broader payment infrastructure for both physical and digital transactions.This position offers an exceptional opportunity to influence real-world transactions, enhancing customer experiences and driving business growth. Join us at fuku, where you will face complex challenges in performance, security, and the evolution of payment solutions in a high-scale environment.

About Us:DOHE is a pioneering global leader in the EdTech sector, based in Singapore with a branch in the United Kingdom. Our mission is to revolutionize education by responsibly harnessing technology to enhance the quality of learning and drive significant societal advancement.We are in the process of creating EdTech Hub, a worldwide ecosystem designed to empower startups, promote collaboration, and boost innovation in the education sector globally. Through our Go-Together Accelerator Programme, we assist EdTech founders in transforming their visions into realities with tailored coaching and strategic guidance. Utilizing our proprietary Navigator methodology, we establish clear and effective pathways to success for education innovators.In the next decade, we aim to accelerate the growth of over 5,000 EdTech startups worldwide.Every initiative we undertake is committed to supporting EdTech startups to positively impact society and fulfill our mission.As part of the EdTech Hub IT Team, you will help power the digital infrastructure of our ecosystem. We are responsible for designing, building, and maintaining secure, scalable, and reliable technology that facilitates seamless collaboration among startups, partners, and stakeholders.From platform development and data management to cybersecurity and system optimization, our team ensures that innovation is underpinned by robust, future-ready technology. By merging technical expertise with a thorough understanding of the EdTech landscape, we create an environment where startups can concentrate on growth while we handle the technology that propels it.

As we embark on an exciting expansion journey, Coinhako is seeking dynamic and driven individuals with a strong passion for the cryptocurrency sector.Key Responsibilities: 70% Product Management & DeliveryCollaborate closely with the CEO on roadmaps/OKRs; draft concise PRDs with clear acceptance criteria; manage backlog, sprint rituals, and vendor SLAs.Ensure quality through technical acceptance (API contracts, error handling, security/privacy); oversee UAT and release management processes (flags, canaries, rollback).Monitor product KPIs (activation, transaction success rate, custody approval SLAs, KYT false-positive rate) and spearhead improvement initiatives.30% Platform OperationsCoordinate EKS patching/upgrades; manage autoscaling, quotas, and FinOps.Maintain an organized Terraform setup (PR reviews, state/backends, drift prevention) and ensure GitHub Actions are efficient and reliable.Administer Cloudflare ZTNA (Access policies, tunnels, certificate rotation, WAF rules); uphold least-privilege IAM; confirm backup/DR strategies meet RPO/RTO standards.Manage Fireblocks policies/approvals/whitelists and Chainalysis rules; oversee webhook/integration monitoring.Ensure observability (CloudWatch/Grafana/alerts), define SLOs/error budgets, and lead incident response with precise RCAs.Desired Qualifications:Minimum of 5–8+ years in software/platform roles; demonstrated product delivery with vendors alongside hands-on experience with AWS/EKS/Terraform/GitHub Actions.Solid understanding of practical security measures: ZTNA (Cloudflare or similar), IAM, KMS/secrets management, backup/DR, logging/alerts.Familiarity with custody/KYT processes (Fireblocks/Chainalysis or equivalent) and their integration within product workflows.Experience managing Google Workspace IAM, Slack, Notion; knowledge of SSO/SAML/SCIM; maintaining good JML hygiene.Exceptional written communication skills; ability to make decisive, documentation-driven decisions.Advanced knowledge or experience in Cryptocurrency/Blockchain/Fintech/Finance Trading sectors is preferred.

Join our innovative team at fuku as a Senior Backend Engineer, where you will play a pivotal role in designing, developing, and scaling our backend services to support a rapidly growing platform. You will be at the forefront of creating reliable and efficient systems that enhance user experience and operational efficiency.Responsibilities:- Architect, develop, and maintain backend services with a strong emphasis on reliability and scalability.- Create and manage APIs to facilitate seamless communication between services.- Improve service reliability, observability, and overall performance.- Collaborate closely with product and infrastructure teams to deliver exceptional solutions.- Optimize and enhance microservices architecture in a distributed systems environment.

Join fuku as a Senior Backend Engineer, where you will play a pivotal role in developing and maintaining scalable distributed systems that power our innovative products and services. As a key member of our engineering team, your responsibilities will include:- Designing and implementing backend services using Go and/or Python.- Creating and maintaining APIs to facilitate smooth integrations and communications across services.- Enhancing system performance and reliability through optimization techniques and proactive monitoring.- Collaborating closely with product and infrastructure teams to deliver robust and efficient solutions.

About BitMEXAs a premier global exchange for cryptocurrency derivatives, BitMEX provides a robust and professional trading platform for traders around the world. Established in 2014, we pride ourselves on an exceptional security record, with a commitment of “no coin lost, ever!”Our platform is designed for cryptocurrency derivatives trading, offering low latency, deep liquidity, and maximum uptime. We currently provide over 100 derivatives contracts, 16 pairs for spot trading, and a seamless conversion feature across more than 30 different cryptocurrencies.In 2015, we transformed the trading landscape by introducing the Perpetual Swap, which has become the most traded crypto product globally. Demonstrating our commitment to transparency, we have been pioneers in regularly publishing our on-chain Proof of Reserves and Proof of Liabilities since 2021, ensuring that available funds exceed total client balances.For more insights about BitMEX, our initiatives, and products, please visit the BitMEX Blog or www.bitmex.com. You can also connect with us on LinkedIn, Discord, Telegram, and X.Role OverviewIn your capacity as a Senior Software Engineer specializing in Full Stack Web Development, you will be tasked with designing and implementing high-performance, real-time web applications. Our platform utilizes React.JS, finely tuned for optimal performance. To excel in this role, a thorough understanding of just-in-time (JIT) compilers is required alongside substantial experience in full-stack development.

Join our innovative team at fuku as a Senior Backend Engineer, where you will play a critical role in building and optimizing the distributed systems that drive our commerce platform. In this position, you will:Take ownership of developing and managing core distributed systems.Design and implement scalable and reliable microservices using Go or Python.Create high-throughput APIs that enhance platform scalability and performance.Work closely with product managers and Site Reliability Engineering (SRE) teams to deliver robust and effective solutions.Mentor junior engineers, fostering their professional growth and development.Enhance and streamline CI/CD workflows to improve development and deployment processes.Continuously seek ways to improve system performance, reliability, and scalability.

Join fuku as a Senior Backend Engineer and play a pivotal role in designing and managing scalable, distributed systems and microservices that power our innovative platform. You will leverage your expertise in Go or Python to develop robust backend solutions, ensuring that our service architecture remains both reliable and efficient. If you are passionate about creating resilient backend services and have a minimum of 3 years of experience in backend development, we want to hear from you!

Join fuku as a Senior Backend Engineer and take the lead in designing and developing robust backend services for our high-performance distributed platform. You will be responsible for ensuring the reliability, performance, and observability of backend systems, while delivering production-grade services that emphasize resilience. Collaborate closely with cross-functional teams, including product and infrastructure, to create effective solutions and mentor fellow engineers to foster their growth.

- Position: Senior Backend Engineer - Location: SingaporeResponsibilities:- Take ownership of designing and developing robust, high-performance backend services.- Collaborate closely with product and infrastructure teams to architect and implement APIs.- Automate deployment processes to guarantee efficient and reliable software releases.- Provide mentorship and support to fellow engineers within the team.Requirements:- A minimum of 3 years of experience in developing systems using Go or Python.- Deep understanding of distributed systems and their complexities.- Demonstrated success in working with microservices architecture.- Knowledge of cloud platforms, service meshes, and observability tools is highly desirable.This position offers the chance to tackle challenging backend engineering problems, work collaboratively across diverse teams, and play a key role in the growth and technical excellence of fuku.

Join Substance, a forward-thinking technology firm, as an API Web Developer. We are in search of a creative and meticulous developer who will play a pivotal role in crafting, developing, and sustaining high-performance APIs that facilitate seamless communication between diverse systems and applications. Your contributions will enhance user experience and promote effective data exchange.Key Responsibilities: Design and create high-performance RESTful APIs tailored to meet the requirements of both internal and external clients. Work closely with front-end developers and other stakeholders to ensure seamless integration of APIs with user-facing components. Guarantee API security, performance, and reliability through comprehensive testing and detailed documentation. Monitor and enhance API performance utilizing analytics and feedback from users. Engage in architectural discussions, contributing to the development of our technology stack and best practices. Identify and resolve issues in API applications, overseeing bug fixes and updates as needed. Stay updated with emerging technologies and industry trends to maintain cutting-edge APIs that deliver business value. Requirements: Bachelor's degree in Computer Science or a related discipline. Minimum of 2 years of experience in API development, particularly in designing and building RESTful services. Proficient in programming languages such as Node.js, Python, Ruby, or Java. Solid understanding of API design principles and best practices, with emphasis on security and versioning. Familiarity with API documentation tools like Swagger or Postman is a plus. Experience with both relational (MySQL, PostgreSQL) and NoSQL (MongoDB) database systems. Ability to thrive in an Agile environment and actively participate in sprint planning and development cycles. Exceptional problem-solving abilities and meticulous attention to detail. Strong communication skills, capable of collaborating effectively with cross-functional teams. Benefits:At Substance, we prioritize action and meaningful connections. If your skills align with our needs, expect to hear from us within 1-2 weeks. We appreciate your interest and will keep your profile in mind for future opportunities that align with your expertise.

Empowering Your Future with AvePoint AvePoint stands as a global frontrunner in data management and governance, with over 21,000 clients worldwide relying on us to enhance their digital environments across platforms like Microsoft, Google, Salesforce, and others. Our extensive global channel partner program boasts more than 3,500 managed service providers, value-added resellers, and systems integrators, with our offerings available in over 100 cloud marketplaces. For more insights, visit www.avepoint.com. At AvePoint, we are committed to nurturing our talent. Our culture, characterized by agility, enthusiasm, and collaborative spirit, empowers you to steer your career, make a meaningful difference, and take control of your future. Join us and discover how you can unlock your true potential! Job Summary: We are on the lookout for a proficient Backend Developer to oversee and enhance the Master Data Manager (MDM) system, ensuring data integrity and optimizing backend services for seamless functionality. The ideal candidate should possess experience in crafting robust systems utilizing Java and managing databases with Postgres/Oracle RDBMS.

As a Backend Developer at fuku, you will play a pivotal role in the design, development, and maintenance of robust backend systems and APIs utilizing Golang. Your work will be essential in supporting scalable and high-performance applications. You will collaborate closely with cross-functional teams, including frontend developers, product managers, and designers, to ensure seamless user experiences. Your responsibilities will include writing clean, efficient, and well-documented code, while adhering to industry best practices and coding standards.In this role, you will optimize application performance, ensuring system reliability, scalability, and security. You will participate in code reviews, provide constructive feedback, and mentor junior developers as necessary. Additionally, you will troubleshoot and resolve technical issues, bugs, and performance bottlenecks promptly. You will also contribute to the design and implementation of database schemas and data storage solutions, while staying informed about the latest industry trends, tools, and technologies to continuously enhance development processes.

Join Accion Labs as a Front End Web Developer and be a pivotal part of our dynamic team in Singapore. We are looking for innovative individuals who are passionate about building high-quality web applications that enhance user experience. You will collaborate closely with designers and backend developers to create seamless and responsive interfaces.

Join Our Team at AirwallexAirwallex stands out as the only all-in-one payments and financial platform tailored for businesses operating on a global scale. Our unique blend of proprietary technology and software empowers more than 200,000 businesses worldwide—including industry leaders like Brex, Rippling, Navan, Qantas, and SHEIN—to manage everything from business accounts, payments, and spend management to treasury and embedded finance effectively.Founded in Melbourne, our dynamic workforce of over 2,000 talented individuals spans 26 offices across the globe. With a valuation of US$8 billion and support from prestigious investors such as T. Rowe Price, Visa, and Mastercard, we are at the forefront of revolutionizing the future of global payments and finance. If you’re prepared to embark on an ambitious journey that shapes your career, we invite you to join us.