Senior Blockchain Engineer - Digital Assets Platform

Job ID: 101307518320Posted: 2026-09-29Location: London, England, United KingdomCategory: Technology, Applications Development, ProfessionalCompany: CitiSenior Blockchain Engineer - Digital Assets PlatformDiscover your future at CitiWorking at Citi is far more than just a job. A career with us means joining a team of more than 230,000 dedicated people from around the globe. At Citi, you’ll have the opportunity to grow your career, give back to your community and make a real impact.Job OverviewAn Digital Assets Platform Senior Blockchain Engineer must be a highly motivated and proactive hands-on software engineer (Back End, Java Focus), have a proven ability and experience working with web applications in production. The successful candidate will be part of the core team continuing to build our Citi Integrated Digital Assets Platform (CIDAP). The ideal candidate will be a self-driven, proactive, strong enterprise developer and resourceful team player who can comfortably work with a large team of highly motivated individuals within Citi’s larger software engineering network.We are looking for candidates who understand how to build the backend of enterprise-grade web applications. The successful individual should understand the basics of web3 infrastructure, blockchain technology and digital assets, and must be a strong enterprise developer of web applications. Experience and knowledge of web3 application development is a plus.Key Responsibilities:In this role, you will be handling the following (but not limited to) responsibilities:To collaborate with team members in implementation approach of web applications leveraging blockchain technologyTo own and to delivery functional scope end-to-end of applications leveraging blockchain technology meeting our quality standardsTo solve solution engineering challenges to meet our stakeholders’ requirements and expectationsTo know and properly use best and common practices, and design patterns for enterprise web applicationsTo know and properly use best and common practices, and design patterns for web3 applicationsTo properly use collaborative tools to manage and deliver work in a distributed teamTo contribute and maintain tech documents for code and applications built and maintainedTo be a team player and properly communicate in a distributed teamHelp resolve/escalate issues as needed to successfully deliver projects on time, on budget and with qualityQualifications/ ExperienceBachelor’s degree in CS or Engineering; MS or PhD in computer science, or related discipline a plusExtensive experience in full software development and testing lifecycle. Experience from financial services industry is a plus.Proven experience and expertise with Backend web development with Java springProven experience in web3 application development is a plusSolid experience and expertise developing web applications using asynchronous programming and communicationExperience and expertise developing web applications adhering to best practices and patterns for reliability, scalability, and performanceFamiliarity with web3 libraries like Web3J and Web3JS is a plusFamiliarity with common and best practices for web3 applications is a plusFamiliarity of Solidity code and best practices is a plusFamiliarity of basics of DevOps and containerize applications is a plusFamiliarity of Agile Methodology and Scrum is a plusCompetencies/ SkillsEnjoy coding :)Strong team player with ability to communicate to technical / non-technical stakeholders at all levels and a start-up mindset.Proven history of delivering high-quality, increasingly complex, commercial software products.Strong engineering fundamentals (testing, code reviews, code structure, readable and maintainable code).Hands-on development experience as a full stack developer building enterprise-grade web applicationsExcellent computer science fundamentals: demonstrable command of data structures, algorithms, and design patterns along with capability to translate them into working, elegant code.Intricate knowledge of controls for consistent deployment and management of applications using best-in-class with toolsets such as git, Jira, Jenkins, Helm Charts, etc.Development Value:You will gain significant experience of the technologies and businesses and engineering groups across Citi, giving you exposure to new and existing methodologies and systems as well as the opportunity to work with multiple teams around the globe. As a member of the Citi Integrated Digital Assets Platform engineering team, you will have to opportunity to work with a team of highly motivated, T-shaped, smart individuals who think out of the box and look for disruptive opportunities for commercial benefit.Exposure to newly released and upcoming technologies and the ability to positively contribute to the strategies of the business. By working within the senior leadership team you will be highly visible across Citi and will have access to Citi’s executive management team.This job description provides a high-level review of the types of work performed. Other job-related duties may be assigned as required.What we’ll provide youBy joining Citi London, you will not only be part of a business casual workplace with a hybrid working model (up to 2 days working at home per week), but also receive a competitive base salary (which is annually reviewed), and enjoy a whole host of additional benefits such as:27 days annual leave (plus bank holidays)A discretional annual performance related bonusPrivate Medical Care & Life InsuranceEmployee Assistance ProgramPension PlanPaid Parental LeaveSpecial discounts for employees, family, and friendsAccess to an array of learning and development resourcesVisit our Global Benefits page to learn more.Alongside these benefits Citi is committed to ensuring our workplace is where everyone feels comfortable coming to work as their whole self, every day. We want the best talent around the world to be energized to join us, motivated to stay and empowered to thrive.#LI-AP2------------------------------------------------------Job Family Group: Technology------------------------------------------------------Job Family:Applications Development------------------------------------------------------Time Type:Full time------------------------------------------------------Most Relevant Skills Please see the requirements listed above.------------------------------------------------------Other Relevant Skills For complementary skills, please see above and/or contact the recruiter.------------------------------------------------------Citi is an equal opportunity employer, and qualified candidates will receive consideration without regard to their race, color, religion, sex, sexual orientation, gender identity, national origin, disability, status as a protected veteran, or any other characteristic protected by law.If you are a person with a disability and need a reasonable accommodation to use our search tools and/or apply for a career opportunity review Accessibility at Citi.View Citi’s EEO Policy Statement and the Know Your Rights poster.