Digital Assets Senior Backend Engineer Job at Citi (Tel Aviv)

Blockchain Senior Backend Engineer

Join Citi's Innovation Labs and leverage cutting-edge blockchain technology to r...

Location

Israel , Tel Aviv

Salary:

Not provided

Citi

Expiration Date

Until further notice

Requirements

A Bachelor's degree in Computer Science, Engineering, or a related discipline
8+ years of extensive experience in full software development and testing lifecycle, with deep expertise in Backend web development using Java Spring
An understanding of web3 infrastructure, blockchain technology, and digital assets, with a proven ability to develop web applications leveraging these technologies – advantage
Demonstrated experience developing high-performance web applications, adhering to best practices and patterns for reliability, scalability, and performance
Excellent computer science fundamentals, including data structures, algorithms, and design patterns, translated into elegant, working code
Familiarity with Agile Methodology and Scrum, and proficiency with collaborative tools for distributed team environments
Love coding and creating things, especially when people actually use your builds

Job Responsibility

Collaborate with a visionary team to implement next-generation web applications, harnessing the power of blockchain technology
Own and deliver end-to-end functional scope for applications leveraging blockchain, ensuring unparalleled quality and performance
Tackle complex engineering challenges, delivering innovative solutions that meet and exceed stakeholder expectations in the rapidly evolving digital assets landscape
Champion and apply best practices and cutting-edge design patterns for both enterprise and web3 applications, ensuring architectural excellence
Drive the proper use of collaborative tools and methodologies to manage and deliver high-impact work within a distributed, agile team
Contribute to and maintain high-quality technical documentation, fostering knowledge sharing and ensuring the longevity of our innovative solutions

What we offer

Competitive base salary and a comprehensive benefits package, including generous holiday allowance, private medical insurance, and employee assistance programs
A business-casual workplace with a hybrid working model (up to 2 days working at home per week)
A workplace where everyone feels comfortable coming to work as their whole self, where the best talent is energized to join, motivated to stay, and empowered to thrive

Fulltime

Senior Software Engineer - Ads

Rockbot is building the future of streaming media in businesses, and this role w...

Location

United States

Salary:

150000.00 - 205000.00 USD / Year

Rockbot

Expiration Date

Until further notice

Requirements

Broad knowledge of ad tech and the advertising landscape, programmatic advertising, and digital marketing trends
Good product sense and prior experience designing and launching product features
Exceptional ability to work with and refactor legacy code effectively, adapting to frequent requirement changes
Exceptional skill in debugging production issues, especially for ad impressions on remote devices
Exceptional familiarity with distributed backend systems in cloud environments, including databases, caching, and application code
Proficiency with integrating third-party software and REST APIs, even with challenging documentation or systems
Proficiency in JavaScript across legacy and modern Chromium browsers
Proficiency with SQL, data warehousing concepts, query optimization, data streaming, and role-based access control
Strong algorithmic thinking ability, particularly for developing ad fill optimization strategies
Ability to rapidly translate high-level product requirements into concrete full-stack prototypes and solutions

Job Responsibility

Architect and implement scalable solutions to support a growing number of users and advertising campaigns
Develop and maintain high-performance ad-serving systems to ensure reliable ad delivery
Build innovative ad products to simplify ad operations and streamline sales workflows
Collaborate with internal data platform teams to prototype and validate in-house tools for data analysis, algorithm automation, and data-driven decision-making
Collaborate with other teams and third-party services to seamlessly integrate the ad serving pipeline with relevance, targeting, bidding, and asset serving systems
Develop scalable data pipelines and systems to support ad measurement, ROI analysis, and revenue attribution
Continuously monitor and optimize system performance to identify and address bottlenecks, enhancing ad delivery efficiency

What we offer

equity
benefits

Fulltime

Senior Engineering Manager, Payments

Polygon Labs is a global blockchain payments company building and operating infr...

Location

United States

Salary:

Not provided

Polygon Labs

Expiration Date

Until further notice

Requirements

10+ years of experience in payments engineering, ideally spanning both traditional finance and digital assets
Proven experience managing senior engineering teams and building high-throughput, low-latency, mission-critical transaction systems
Deep expertise in designing microservices-based architectures, including service mesh and event-driven systems (e.g. Kafka, Axon, cloud-native pub/sub)
Proficient in one or more backend languages (Java, Go, Python) and frameworks like Spring Boot, with strong understanding of active thread management for synchronous flows
Experience with both synchronous and asynchronous integration patterns (REST, gRPC, pub-sub) for enterprise-scale partner integrations
Strong architectural understanding of cloud-native systems on AWS and/or GCP, including edge networking (e.g. CDN, API gateways) through to internal subnet topology
Hands-on experience with database and caching technologies including PostgreSQL, MongoDB, ElasticSearch, Redis, and Hazelcast
Solid understanding of data architecture patterns, including data lakes, data warehouses (e.g. Snowflake, Databricks) and event-based ingestion pipelines
Strong understanding of both centralized and decentralized payment infrastructure, including traditional rails (ACH, SEPA, card networks) and blockchain-based flows (wallets, custody, stablecoins)
Track record of delivering compliant, secure systems in regulated environments, with an understanding of KYC, AML, and other key controls

Job Responsibility

Lead the buildout of a modern payments application from the ground up, working closely with the Head of Payments Engineering
Manage and mentor engineers and DevOps teams focused on delivering scalable and reliable payment capabilities
Collaborate cross-functionally with Product, Compliance, and Infrastructure teams to define and deliver enterprise-grade payment solutions
Drive architecture and development across both fiat and blockchain-based payment systems
Instill a strong engineering culture focused on automation, ownership, security, and operational excellence
Stay ahead of the curve on blockchain innovation in the payments space and integrate emerging standards into the product roadmap

What we offer

Remote first global workforce
Industry-leading Medical, Dental and Vision health insurance
Company matching 401k with 3% match
$1,500 Home Office Set Up Allowance (lifetime max)
$75 Monthly internet or phone reimbursement
Flexible Time Off
Company issued laptop
Egg freezing, mental health, and employee wellness benefits

Fulltime

Senior Java Engineer

We are looking for high-performing Java Backend Developers with strong expertise...

Location

Philippines , Makati City

Salary:

Not provided

Avaloq

Expiration Date

Until further notice

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

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

Annual bonus
Flexible working
Instant recognition
Access to Udemy for professional and personal learning

Fulltime

Senior Software Engineer - Java and NodeJS

The Backend Developer will be part of the Digital Technology Team. They are resp...

Location

United States , Irving

Salary:

Not provided

7-Eleven, Inc

Expiration Date

Until further notice

Requirements

Bachelors/ master’s degree in computer science or equivalent
Must have 8+ years of API / Server-side development experience (Programmer, Backend Services developers, Middleware developers, JavaScript(must), NodeJS, Java (Must), C#, Backend Services Developer, AWS, Lambda, ECS, Serverless, MongoDB, Document Storage modeling, RDBMS Storage modeling.)
Must have 4 years of experience in cloud platforms (preferable AWS: both traditional EC2 and serverless Lambda), developing micro-services, CI/CD solutions (including Docker), message queue systems and background task management
Must have 4 years of experience in developing NoSQL databases, designing data models and proficient in querying document stores (preferably MongoDB)
Knowledge in API security frameworks, token management and user access control including OAuth, JWT, Open API, etc
Must demonstrate strong programming skills in JavaScript and Java
Experience working with API Gateway, CDNs, API Performance testing, CI/CD pipelines and monitoring tools
Ability to work in an Agile / SCRUM environment
Self-directed with a start-up/entrepreneur mindset
Ravenous about learning technology and problem solving

Job Responsibility

Design APIs, develop shippable code, documentation and unit test new features for digital products
Works with fellow API Developers, Team Leads, Architects to deliver features through the creation of re-usable RESTful APIs
Collaborate with Quality, Product and Cloud Engineering teams to keep digital assets fully functional, secure and up to date with business needs
Perform pair programming, effectively communicate ideas with the team, assist in systems integration, performance testing and product releases
Implement policies, roles, data access controls, monitoring events, resolve system and data issues for continuous functioning of APIs

Fulltime

Director of Financial Services, Industry Lead

Blockstream was founded in 2014 by Dr. Adam Back and a group of fellow cryptogra...

Location

Switzerland , Zurich

Salary:

Not provided

Blockstream

Expiration Date

Until further notice

Requirements

10+ years of experience in technology leadership, banking, or financial services transformation
Proven leadership in building and managing high-performing teams, stakeholder management, and decision-making capabilities
Proven experience in senior client-facing roles such as Director of Architecture, Principal Solutions Architect, or equivalent within banking, fintech, payments, or capital markets
Demonstrated ability to operate at executive and board level, advising on strategy, architecture, and transformation initiatives
Deep domain expertise in banking and financial services, including exposure to: Core banking platforms (Avaloq or similar preferred)
Custody, treasury, payments, or capital markets environments
Strong track record of translating market needs and business strategy into scalable technology architectures
Broad hands-on architectural experience across: Front-end and back-end systems
Cloud platforms, preferably AWS
DevOps practices, CI/CD pipelines, and containerization (Docker, Kubernetes)

Job Responsibility

Build, mentor, and lead a high-performing team responsible for translating market demand and complex financial-services client challenges into scalable, secure, and compliant architectural solutions
Own the identification, analysis, and prioritization of market needs across banking, custody, payments, tokenization, and digital assets
Define and lead industry solution and architecture strategy, ensuring alignment with market demand, regulatory requirements, and company growth objectives
Act as the senior-level trusted advisor and architectural authority for clients, guiding strategic technology and architecture decisions
Lead executive client engagements, architectural discovery sessions, and solution strategy workshops to define future-state architectures
Set architectural direction for end-to-end solutions, covering front-end, back-end, integration, cloud infrastructure, DevOps, and security
Drive customer solutions strategy within the Service and Enterprise Products organization, identifying product utility, efficiencies, and architectural synergies
Translate market insights and client requirements into standardized solution patterns, architectural principles, and reference architectures
Elevate the Enterprise Team’s competitive positioning by simplifying complex architectures and accelerating enterprise adoption
Demonstrate deep expertise in banking architectures and processes, including core banking platforms (e.g. Avaloq or equivalent) and integration of blockchain technologies into regulated financial systems

Fulltime

Director of Financial Services, Industry Lead

We are seeking a Director of Financial Services, Industry Lead, a senior leaders...

Location

Switzerland , Zurich

Salary:

Not provided

Blockstream

Expiration Date

Until further notice

Requirements

10+ years of experience in technology leadership, banking, or financial services transformation
Proven leadership in building and managing high-performing teams, stakeholder management, and decision-making capabilities
Proven experience in senior client-facing roles such as Director of Architecture, Principal Solutions Architect, or equivalent within banking, fintech, payments, or capital markets
Demonstrated ability to operate at executive and board level, advising on strategy, architecture, and transformation initiatives
Deep domain expertise in banking and financial services, including exposure to: Core banking platforms (Avaloq or similar preferred)
Custody, treasury, payments, or capital markets environments
Strong track record of translating market needs and business strategy into scalable technology architectures
Broad hands-on architectural experience across: Front-end and back-end systems
Cloud platforms, preferably AWS
DevOps practices, CI/CD pipelines, and containerization (Docker, Kubernetes)

Job Responsibility

Build, mentor, and lead a high-performing team responsible for translating market demand and complex financial-services client challenges into scalable, secure, and compliant architectural solutions
Own the identification, analysis, and prioritization of market needs across banking, custody, payments, tokenization, and digital assets
Define and lead industry solution and architecture strategy, ensuring alignment with market demand, regulatory requirements, and company growth objectives
Act as the senior-level trusted advisor and architectural authority for clients, guiding strategic technology and architecture decisions
Lead executive client engagements, architectural discovery sessions, and solution strategy workshops to define future-state architectures
Set architectural direction for end-to-end solutions, covering front-end, back-end, integration, cloud infrastructure, DevOps, and security
Drive customer solutions strategy within the Service and Enterprise Products organization, identifying product utility, efficiencies, and architectural synergies
Translate market insights and client requirements into standardized solution patterns, architectural principles, and reference architectures
Elevate the Enterprise Team’s competitive positioning by simplifying complex architectures and accelerating enterprise adoption
Demonstrate deep expertise in banking architectures and processes, including core banking platforms (e.g. Avaloq or equivalent) and integration of blockchain technologies into regulated financial systems

Fulltime

New

Healthcare Assistant & Lead Healthcare Assistant

Are you passionate about supporting older people and making a meaningful differe...

Location

Ireland , Cork

Salary:

Not provided

360 Resourcing Solutions

Expiration Date

Until further notice

Requirements

Experience in elderly care is desirable but not essential (training may be provided)
QQI Level 5 in Healthcare Support or equivalent is an advantage
A caring, patient and respectful approach to supporting older people
Ability to work flexible shifts including days, nights, and weekends
Strong commitment to resident safety, dignity and wellbeing
Applicants must have legal entitlement to work in Ireland

Job Responsibility

Deliver person-centred care to residents with dignity and respect
Support residents with activities of daily living where required
Encourage independence and social engagement
Maintain a clean, safe and comfortable living environment
Build positive relationships with residents, families, and colleagues
Follow all health, safety and safeguarding procedures
Assist with compliance processes, inspections, and quality standards
Lead Healthcare Assistants will also assist in guiding care teams, supporting best practice, and helping maintain high standards of care delivery

What we offer

Flexible working hours to support work–life balance
Local employment opportunities within the Douglas, Cork area
Competitive rates of pay in line with experience and role
Supportive team environment with ongoing training and development
Employee wellbeing initiatives
Uniform provided
Free on-site parking
Meals provided while on duty

Digital Assets Senior Backend Engineer

Citi

Location:
Israel , Tel Aviv

Category:
IT - Software Development

Contract Type:
Not provided

Salary:

Job Description:

Job Responsibility:

Requirements:

Nice to have:

Additional Information:

Job Posted:
September 17, 2025

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Digital Assets Senior Backend Engineer

Citi

Location:Israel , Tel Aviv

Category:IT - Software Development

Contract Type:Not provided

Salary:

Job Description:

Job Responsibility:

Requirements:

Nice to have:

Additional Information:

Job Posted:September 17, 2025

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Job Posted:
September 17, 2025