Java Software Engineer Crypto Focused

We are a leading trading platform that is expanding to the four corners of the globe. Our top-rated products have won prestigious industry awards for their cutting-edge technology and seamless client experience. We deliver only the best, so we are always in search of the best people to join our ever-growing talent team . We are currently growing our Backend Team and looking for great Engineers with an interest in trading to join us Our Engineering team plays a pivotal role in ensuring the robustness, speed, and security of our product. Dedicated to enhancing performance, providing a best-in-class user experience, ensuring compliance, and safeguarding data, the team's efforts directly impact our ability to offer clients a seamless and secure trading journey.We believe great engineering talent not only delivers excellent code, but also lives our values. We are looking for someone who is eager to go fast , willing to innovate and grow , who knows how to listen, respect and support , strives to exceed client expectations , and takes full ownership to achieve real results .Core responsibilities:Design and build scalable, low-latency, and high-performance backend servicesDevelop distributed and asynchronous systems ensuring reliability and fault toleranceOptimise performance across JVM, databases, caching, and networking layersApply security best practices in handling client PII and financial transactionsUse event-driven architectures and modern messaging solutions (e.g. Kafka)Collaborate with cross-functional teams to align architecture with business needsMaintain high code quality through testing, code reviews, and CI/CD practicesLeverage AI tools to accelerate development, testing, and deliveryAdditional core responsibilities (crypto focused):Design and build backend systems for custody, wallet services, staking, and trading.Implement secure key-management and transaction-signing workflows (multisig, MPC, HSM).Integrate with blockchain nodes, custody providers, CEX/DEX APIs, and staking protocols.Support the integration of third-party staking service providers and manage the associated workflows, including delegation, monitoring, and reward distribution.What you will need:Experience & domain knowledge:Proven experience in FinTech, Banking, or related financial domainsStrong understanding of distributed systems architecture and the client–server modelAbility to design and maintain scalable, low-latency, high-performance systemsSolid knowledge of concurrency, multithreading, and asynchronous programmingAwareness of security best practices in handling PII and financial transactionsBasic understanding of network protocols and troubleshootingExperience working in a product-led fast-paced environment as a team playerAdditional experience & domain knowledge (crypto focused)Strong understanding of blockchain fundamentals: consensus, mempool, finality, gas mechanics, security considerations, and transaction lifecycles.Hands-on experience with major chains (e.g., Ethereum, Bitcoin, Solana, Cosmos, Polygon).Deep experience with wallet systems, key management, multisig/threshold signatures, hot/cold wallet architecture, and secure signing pipelines.Experience with custody platforms (Fireblocks, BitGo, Ledger Enterprise, Copper) or building custody-grade internal wallet infrastructure.Practical experience with staking/validator operations, including rewards, uptime, monitoring, and slashing mitigation.Technical skills:Java and Spring: Advanced knowledge of Java Core technologies and the Spring frameworkData Mastery: Proficiency with SQL databases, ensuring optimal performance, structure, and replicationConcurrency & Async programming: advanced understanding and hands-on experience in asynchronous programming methods.Events streaming: Understanding of the event driven architecture (Kafka or similar solutions).Operational Proficiency: Understanding and hands-on experience with Ops activities, Kubernetes, pipelines, Fit Flow and modern CI/CD patterns and strategiesAI tools: ability to effectively use AI technologies in engineering work e.g. applying AI for coding assistance, debugging, testing, documentation, and optimisation of workflowsSoft skills:Communication: Effective communication skills, especially with teams responsible for security, operations and productAnalytical thinking: Ability to tackle and investigate complicated problems and convert it to the taskAdaptability to Rapid Changes: Demonstrated capability to adjust to quick technological shifts and evolving business requirementsOwnership and Accountability: Readiness to take ownership of tasks, issues as well as demonstrate accountability of the results and outcomeNice to have:Performance: Knowledge of JVM performance optimization practicesNo-SQL: Experience working with no-SQL databases is a big plusIn-memory storage: Strong knowledge of in-memory cache solutionsFamiliarity with double-entry accountingUnderstanding of DeFi protocols, liquidity mechanisms, yield strategies, or governance systems.Exposure to MEV concepts, transaction simulation, or on-chain execution optimization.