CrawlJobs Logo
Citi Logo Citi · IT - Software Development

Senior Blockchain Engineer - Team Lead

Israel, Tel Aviv · Job Posted March 19, 2026
Apply Position
Job Link Share

Job Description

The Citi Integrated Digital Assets Platform Engineering Team Lead must be a highly motivated and proactive hands-on software team leader (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.

Job Responsibility

  • Collaborate with team members in implementation approach of web applications leveraging blockchain technology
  • Own and deliver functional scope end-to-end of applications leveraging blockchain technology meeting our quality standards
  • Solve solution engineering challenges to meet our stakeholders’ requirements and expectations
  • Know and properly use best and common practices, and design patterns for enterprise web applications
  • Know and properly use best and common practices, and design patterns for web3 applications
  • Properly use collaborative tools to manage and deliver work in a distributed team
  • Contribute and maintain tech documents for code and applications built and maintained
  • Be a team player and properly communicate in a distributed team
  • Help resolve/escalate issues as needed to successfully deliver projects on time, on budget and with quality

Requirements

  • Bachelor’s degree in CS or Engineering
  • 7 to 10 years of experience in full software development and testing lifecycle
  • 5 to 7 years of experience and expertise with Backend web development with Java spring
  • 1 to 3 years of experience in web3 application development is a plus
  • 1 to 3 years of experience and expertise developing web applications using asynchronous programming and communication
  • Experience and expertise developing web applications adhering to best practices and patterns for reliability, scalability, and performance
  • Familiarity with web3 libraries like Web3J and Web3JS is a plus
  • Familiarity with common and best practices for web3 applications is a plus
  • Familiarity of Solidity code and best practices is a plus
  • Familiarity of basics of DevOps and containerize applications is a plus
  • Familiarity of Agile Methodology and Scrum is a plus
  • 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 applications
  • Excellent 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.

Nice to have

  • MS or PhD in computer science, or related discipline
  • Experience from financial services industry
  • 1 to 3 years of experience in web3 application development
  • Familiarity with web3 libraries like Web3J and Web3JS
  • Familiarity with common and best practices for web3 applications
  • Familiarity of Solidity code and best practices
  • Familiarity of basics of DevOps and containerize applications
  • Familiarity of Agile Methodology and Scrum
Citi - All Job Offers

Looking for more opportunities?

Search for other job offers that match your skills and interests.

Suggested Tags: Frontend Developer Secretary Talent Manager Salesforce Administrator Data Analyst
Similar Jobs for

Senior Blockchain Engineer - Team Lead

8 matching positions

Senior Engineer - Stablecoin

We are looking for a passionate Senior Engineer to join our growing Tech team, h...
Location
Location
Serbia , Belgrade
Salary
Salary:
Not provided
sokin.com Logo
Sokin
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • 7+ years of software engineering experience, with 3+ years working directly with blockchain technology, infrastructure, exchanges, wallets
  • Deep understanding of major stablecoin mechanisms: fiat-collateralized (USDC, USDT), crypto-collateralized (DAI), and algorithmic models
  • Deep understanding of blockchain transactions, wallet, addresses, smart contract integrations and yield mechanics
  • Hands-on experience integrating with stablecoin APIs from 3rd party providers
  • Strong knowledge of EVM-compatible blockchains, TRON, Solana
  • A track record building and deploying production smart contracts
  • Senior-level proficiency in backend development (Nest.js/Node.js - must, Go, Rust – would be a plus)
  • Experience in creating basic smart contracts, integrating of smart contracts, testing frameworks (Hardhat, Foundry, Truffle), and security auditing
  • Deep understanding of cryptographic primitives, key management (HSMs, MPC), and wallet infrastructure
  • Proficiency with event-driven architectures and distributed systems
Job Responsibility
Job Responsibility
  • Implement robust, scalable stablecoin infrastructure supporting multiple blockchains
  • Design and implement cross-chain bridge solutions and settlement mechanisms across Ethereum, Polygon, Stellar, Solana, and other Layer 1/Layer 2 networks
  • Build and maintain integrations with leading stablecoin protocols and their APIs using infrastructure providers like Infura, Alchemy, Quicknode, etc.
  • Develop and support integrations with EVM, Solana, Tron blockchains, smart contracts, DeFi protocols
  • Implement multi-signature wallet solutions and secure key management systems
  • Design and build integrations for real-time price feeds and reserves verification
  • Create automated monitoring and alerting systems for on-chain and off-chain stablecoin operations
  • Develop integrations with providers, traditional payment protocols and card systems
  • Build robust reconciliation and settlement connecting blockchain and banking rails
  • Implement transaction routing and fee optimization strategies
  • Fulltime
Read More
Arrow Right

Java Microservices Application Lead-Senior Vice President

The Applications Development Technology Senior Lead Analyst is a senior level po...
Location
Location
India , Pune
Salary
Salary:
Not provided
https://www.citi.com/ Logo
Citi
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • 10+ years of relevant experience
  • Experience in implementing projects
  • Experience in systems analysis and programming of software applications
  • Demonstrated Subject Matter Expert (SME) in area(s) of Applications Development
  • Demonstrated knowledge of client core business functions
  • Demonstrated leadership, project management, and development skills
  • Relationship and consensus building skills
  • Bachelor's degree/University degree or equivalent experience
  • Master's degree preferred
  • 12+ years of relevant experience
Job Responsibility
Job Responsibility
  • Lead integration of functions to meet goals, deploy new products, and enhance processes
  • Analyze complex business processes, system processes, and industry standards to define and develop solutions to high level problems
  • Provide expertise in area of advanced knowledge of applications programming and plan assignments involving large budgets, cross functional project, or multiple projects
  • Develop application methodologies and standards for program analysis, design, coding, testing, debugging, and implementation
  • Utilize advanced knowledge of supported main system flows and comprehensive knowledge of multiple areas to achieve technology goals
  • Consult with end users to identify system function specifications and incorporate into overall system design
  • Allocate work, and act as an advisor/coach developers, analysts, and new team members
  • Influence and negotiate with senior leaders and communicate with external parties
  • Appropriately assess risk when business decisions are made, demonstrating particular consideration for the firm's reputation and safeguarding Citigroup, its clients and assets, by driving compliance with applicable laws, rules and regulations, adhering to Policy, applying sound ethical judgment regarding personal behavior, conduct and business practices, and escalating, managing and reporting control issues with transparency
  • Fulltime
Read More
Arrow Right

Senior Rust Engineer

As a Senior Rust Core Engineer at Raiku, you will spearhead our engineering effo...
Location
Location
Salary
Salary:
Not provided
raiku.com Logo
Raiku
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • A bachelor's or master's degree in Computer Science, Engineering, or a related technical field, coupled with practical experience in blockchain systems
  • At least 3 years of experience in distributed systems, with a deep technical understanding of L1 and L2 architectures
  • Strong proficiency in Rust, with at least 2-3 years of Rust experience
  • Strongly emphasising writing performant and secure code
  • Demonstrated experience in designing, developing, and deploying scalable distributed systems
  • An analytical mindset with the ability to anticipate and mitigate emerging security threats, leveraging a comprehensive understanding of the blockchain landscape
Job Responsibility
Job Responsibility
  • Highly motivated to contribute to our mission and be part of something bigger. Excited to work on projects that are ground-breaking and complex
  • Refactor, improve and lead software design implementation
  • Communicate effectively with the team and document your code. It is also expected that founding engineers mentor less experienced engineers
  • Read and understand protocol specifications and be able to break them into issues and turn them into Rust code
  • Maintaining a large codebase with many components and keeping it well-designed, future-proofed, modular and highly performant
  • Automate security testing processes and benchmarks, creating innovative tools and frameworks for continuously improving our systems
What we offer
What we offer
  • Competitive remuneration packages based on iterative market research, including tokens
  • Remote-first and self-initiating with flexible hours
  • Work with team players who are genuinely excited about their impact and projects
  • A dynamic and collaborative work environment that fosters innovation and recognises individual contributions to collective success
  • Opportunities for professional growth and advancement within a rapidly growing technological frontier
  • Fulltime
Read More
Arrow Right

Senior Validator Engineer

As a Senior Validator Engineer at Raiku, you will spearhead our engineering effo...
Location
Location
Salary
Salary:
Not provided
raiku.com Logo
Raiku
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • A bachelor's or master's degree in Computer Science, Engineering, or a related technical field, coupled with practical experience in blockchain systems
  • At least 3 years of experience in blockchain and distributed systems, with a deep technical understanding of L1 and L2 architectures. Ideally Solana
  • Experience in writing efficient low-level code
  • Strong proficiency in Rust, with at least 2-3 years of Rust experience
  • Demonstrated experience in designing, developing, and deploying scalable distributed systems
  • An analytical mindset with the ability to anticipate and mitigate emerging security threats, leveraging a comprehensive understanding of the blockchain landscape
Job Responsibility
Job Responsibility
  • Highly motivated to contribute to our mission and be part of something bigger. Excited to work on projects that are ground-breaking and complex
  • Refactor, improve and lead software design and implementation
  • Communicate effectively with the team and document your code. It is also expected that senior engineers mentor less experienced engineers
  • Read and understand protocol specifications and be able to break them into issues and turn them into code
  • Maintaining a large codebase with many components and keeping it well-designed, future-proofed, modular and highly performant
  • Automate security testing processes and benchmarks, creating innovative tools and frameworks for continuously improving our systems
What we offer
What we offer
  • Competitive remuneration packages based on iterative market research, including tokens
  • Remote-first and self-initiating with flexible hours
  • Work with team players who are genuinely excited about their impact and projects
  • A dynamic and collaborative work environment that fosters innovation and recognises individual contributions to collective success
  • Opportunities for professional growth and advancement within a rapidly growing technological frontier
  • Fulltime
Read More
Arrow Right

Senior Software Engineer, Frontend

Phantom is the modern money app used by tens of millions around the world. Our p...
Location
Location
Salary
Salary:
180000.00 - 220000.00 USD / Year
phantom.app Logo
Phantom
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • Bachelors degree in Computer Science or related technical field or equivalent practical experience
  • 5+ years full-time software engineering experience with some of the following technologies: React / Typescript / React-Query
  • Solana web3.js / ethers.js
  • Demonstrated interest in open and community-driven platforms
  • English language proficiency
Job Responsibility
Job Responsibility
  • Feature development: You will be owning features on our web platforms – currently the Phantom Extension and our website
  • New initiatives and products: You will be leading initiatives to add support for other blockchains to Phantom, and to launch new complementary products or infrastructure
  • Interfacing with users: You will be interfacing directly with end-users and developers building on Phantom – supporting them and collecting feedback to inform the direction of the product
  • Team building: You will be working with the team to create and foster a culture of raising the bar with each new hire
What we offer
What we offer
  • Competitive salary and equity
  • Comprehensive insurance (medical/dental/vision) — 100% covered
  • Stipend for your ideal remote / WFH set-up: laptop, headphones, and any other work gear you may need
  • Flexible hours and a long-standing, supportive remote environment
  • Unlimited vacation: Take time when you need it (and we really mean it!)
  • 401(k) retirement plan
  • Wellness benefit
  • Daily lunch benefit
  • Fulltime
Read More
Arrow Right

Senior Data Engineer

Senior Data Engineer role at Blockworks, an information platform at the center o...
Location
Location
United States , New York
Salary
Salary:
160000.00 - 200000.00 USD / Year
blockworks.co Logo
Blockworks
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • Significant knowledge of the crypto industry (crypto native)
  • At least 4 years of hands-on experience with data modeling, schema design, data operations, and data warehousing
  • Experience building backend systems at scale with a focus on data processing and ingestion
  • Expertise in Typescript, Go, and/or Python
  • Strong expertise in SQL (ideally Postgres, dbt, and Hypertables)
  • Deep experience creating data warehouses using Timescale, Snowflake, and/or BigQuery
  • Experience using DevOps tools and solutions like Docker, CI/CD, and AWS
Job Responsibility
Job Responsibility
  • Own Data Sourcing Pipelines: architect data warehousing, ingestion and sourcing strategy, working with multiple SDKs to aggregate data from various sources into Blockwork's own data warehouse
  • Design and Implement ETL Solutions: implement overall ETL approach, including accessing & setting up blockchain nodes to pull from, sourcing data from 3rd parties, and modeling internal schemas across PostgreSQL database(s)
  • Grow Shared Knowledge: provide technical leadership, guidance, and assistance to the team in the implementation of established architectures and designs
  • Drive Operational Efficiency: improve data workflows and reliably automate routine tasks
  • Cross-Functional Collaboration: work with other teams across Blockworks, including Research, Product, and Engineering, to lead initiatives and move collaborations forward
What we offer
What we offer
  • Remote-first organization with an office in NYC
  • 100% medical coverage for employee (close to fully paid medical, dental, and vision insurance)
  • Significant portion of medical coverage covered for dependents
  • Flexible PTO policy without limits on vacation days
  • 14 weeks of fully paid parental leave for all team members
  • Hardware stipend to purchase tools and technology
  • Learning & Growth stipend for skill growth and professional development
  • Career growth prioritization with clear, documented structure for development and progression
  • Global & Diverse Team committed to open, inclusive, and diverse work culture
  • Fulltime
Read More
Arrow Right

Senior Java Engineer

We are looking for high-performing Java Backend Developers with strong expertise...
Location
Location
Philippines , Makati City
Salary
Salary:
Not provided
avaloq.com Logo
Avaloq
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • 5+ years of development experience preferred with a Bachelors degree in Software Engineering
  • Full-stack Java development experience (java 17+) including knowledge of common tooling such as Spring Boot and JPA, GraphQL, Liquibase, and Spring Security
  • Advanced proficiency RESTful API building
  • Knowledge of traditional software development processes and tools, including Git, Gradle and Jenkins CI tool, JIRA, Confluence, Code Reviews
  • Hands-on experience developing microservices using modern technologies such as Apache Kafka, REST APIs, containerization ( Kubernetes), and cloud-based infrastructure (AWS, Azure)
  • Testing frameworks: Junit, Mockito
  • Basic Linux operating system knowledge
  • Authentication and security over REST protocol
Job Responsibility
Job Responsibility
  • Develop and implement scalable and secure backend services for banking and digital assets
  • Collaboration with the Product Owner and Architect for specifications and design
  • Contribute to high-performance architecture and establish software design patterns
  • Lead development team, supporting individual grows and ensuring high quality of delivered solutions
  • Drive best coding practices and maintain high code quality through Unit and Integration tests
  • Conduct code reviews and mentor junior team members
  • Take ownership of key backend components and deliver robust solutions
  • Stay informed about emerging trends in banking technology, digital assets, and blockchain
What we offer
What we offer
  • Annual bonus
  • Flexible working
  • Instant recognition
  • Access to Udemy for professional and personal learning
  • Fulltime
Read More
Arrow Right

Senior Frontend Engineer - Stablecoin

We are looking for a passionate Senior Engineer who wants to join our growing te...
Location
Location
Serbia , Belgrade
Salary
Salary:
Not provided
sokin.com Logo
Sokin
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • Prior fintech/regtech product exposure with understanding all the vocabulary, tooling, objects and user journeys and transaction flows together with understanding that UX correctness is as critical as system correctness
  • Expert in Angular (TypeScript-first) for large-scale applications: architecture, performance, state management, complex forms, routing/guards, and building reusable UI systems
  • React.js knowledge: able to design, implement, and review production React codebases (modern hooks patterns, performance, component architecture) even if Angular is the primary stack
  • Good proficiency in backend development (Nest.js (or Node.js) - must)
  • Experience with blockchain integrations and transaction types
  • ability to contribute across services that power the frontend workflows
  • Event-driven/distributed systems mindset
  • strong SQL + NoSQL skills
  • familiarity with Docker/Kubernetes and CI/CD
  • Understanding of payment systems architecture (clearing, settlement, and recs)
Job Responsibility
Job Responsibility
  • Own the frontend architecture for a stablecoin platform supporting multiple currencies and blockchains, with a focus on scalability, reliability, and maintainability
  • Lead the technical strategy for custody, treasury management, and liquidity optimization experiences—turning complex workflows into clear, safe, fast UIs
  • Establish and enforce frontend security standards and best practices across development, deployment, and monitoring (especially for high-risk financial workflows)
  • Build UI foundations: shared component patterns, state management conventions, API contract standards, performance budgets, accessibility, and observability
  • Build and maintain end-to-end integrations surfaced through the product—stablecoin rails, blockchain infrastructure, and related APIs—with robust UX for failure modes and reconciliation
  • Participate in backend/smart-contract-adjacent work where needed (e.g., shaping flows for escrow/settlement), while keeping ownership of the customer/operator UI quality bar
  • Build frontend experiences for reconciliation and settlement across blockchain + banking rails, including transparency into statuses, exceptions, and recoveries
  • Create operator tooling for transaction routing, fee optimization, and continuity (failover/DR visibility and controls)
  • Implement compliance-facing workflows and admin consoles for transaction monitoring, screening, AML/CFT controls, sanctions screening, and address allow/deny lists
  • Integrate transaction monitoring, screening, and compliance controls for AML/CFT requirements
Read More
Arrow Right