Senior Software Developer, Web3 Job at Robinhood (Toronto)

Senior Software Engineer, Web3

Join us in building the future of finance. Our mission is to democratize finance...

Location

United States , Menlo Park; New York

Salary:

187000.00 - 220000.00 USD / Year

Robinhood

Expiration Date

Until further notice

Requirements

5+ years of software development experience working in a fast paced environment
3+ years experience writing low latency, large scale distributed systems
Proficiency in Go or Python, with exceptional technical grasp with problem-solving and production debugging skills
Strong ownership and experience building and operating high-scale, distributed systems across the full software lifecycle
Excellent communication skills and the ability to work well within a team and across engineering teams
Experience mentoring junior developers and leading the team technically on new initiatives and system improvement

Job Responsibility

Build scalable systems and components, making the right tradeoffs to account for stability and long-term maintainability
Design, write, test, and release critical technical solutions with high engineering rigor
Collaborate with multi-functional teams and deliver large-scope technical quality projects
Mentor junior developers on the team and lead project of large complexity
Find opportunities to improve system performance, team efficiency, and minimize risks

What we offer

Performance driven compensation with multipliers for outsized impact, bonus programs, equity ownership, and 401(k) matching
100% paid health insurance for employees with 90% coverage for dependents
Lifestyle wallet - a highly flexible benefits spending account for wellness, learning, and more
Employer-paid life & disability insurance, fertility benefits, and mental health benefits
Time off to recharge including company holidays, paid time off, sick time, parental leave, and more
Exceptional office experience with catered meals, events, and comfortable workspaces

Fulltime

Scala Backend Software Engineer, Senior / Lead

To sustain the company's growth, Ledger is looking for new talents. You will sta...

Location

France , Paris

Salary:

Not provided

Ledger

Expiration Date

Until further notice

Requirements

Experienced engineer and continuous learner with 6+ years of relevant engineering experience
2+ years of technical leadership experience, including effective communication of complex concepts and cross-team coordination to ship critical products
Advanced Scala proficiency
expert-level proficiency, and advanced mastery of a second backend language (e.g., Rust, Java, Python, PHP) is a plus
Excellent collaboration and communication skills
Experience collaborating closely with QA, product management, and key stakeholders to develop and deliver on a shared vision
Led development of complex, high-performance interactive browser applications, including architecture, infrastructure, and optimization
Experience with various web architecture patterns (e.g., Microservices, Event-Driven, P2P)
Ability to apply and adapt software engineering best practices to the engineering environment
Experience in the Web3 ecosystem and in a project involving blockchain fundamentals

Job Responsibility

Develop and maintain high-performance, resilient microservices and APIs to power Ledger's products, including integrations with staking, yield, DeFi services, and blockchain explorers
Contribute to the architecture, design, and implementation of scalable solutions, proactively identifying and addressing technical challenges
Ensure software quality through testing, documentation, and performance optimization, including monitoring and alerting systems
Enhance and maintain CI/CD pipelines to secure and streamline deployment workflows
Provide technical leadership and mentorship, collaborating across teams to deliver impactful projects and improve engineering standards
Drive innovation by identifying opportunities for improvement, contributing to a shared knowledge base, and participating in technical outreach
Manage projects effectively, respecting deadlines, priorities, and deliverables.

What we offer

Equity: Employees are the foundation of our success, and we award stock options so you can share in that success as we grow
Flexibility: A hybrid work policy
Social: Annual company outing for Ledgerdary Days, plus frequent social events, snacks and drinks
Medical: Comprehensive health insurance policy offering extensive medical, dental and vision care coverage
Well-being: Personal development, coaching & fitness with our dedicated partners
Vacation: Five weeks of paid leave per year, in addition to national holidays and rest & relaxation (RTT) days
High tech: Access to high performance office equipment and gadgets
Transport: Ledger reimburses part of your preferred means of transportation
Discounts: Employee discount on all our products.

Fulltime

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

Digital Assets Senior Backend Engineer

Senior Backend Engineer role at Citi's Innovation Labs working on the Citi Integ...

Location

Israel , Tel Aviv

Salary:

Not provided

Citi

Expiration Date

Until further notice

Requirements

Bachelor's degree in Computer Science, Engineering, or related discipline
8+ years of experience in full software development and testing lifecycle
Deep expertise in Backend web development using Java Spring
Understanding of web3 infrastructure, blockchain technology, and digital assets
Experience developing high-performance web applications
Excellent computer science fundamentals including data structures, algorithms, and design patterns
Familiarity with Agile Methodology and Scrum
Proficiency with collaborative tools for distributed team environments

Job Responsibility

Collaborate with team to implement next-generation web applications using blockchain technology
Own and deliver end-to-end functional scope for blockchain applications
Tackle complex engineering challenges in digital assets landscape
Apply best practices and cutting-edge design patterns for enterprise and web3 applications
Use collaborative tools and methodologies in distributed agile team
Contribute to and maintain high-quality technical documentation

What we offer

Competitive base salary
Comprehensive benefits package
Generous holiday allowance
Private medical insurance
Employee assistance programs
Hybrid working model (up to 2 days working at home per week)
Inclusive workplace environment

Fulltime

Senior Front-end Engineer

We're making the world of digital assets accessible and secure for everyone. Joi...

Location

France , Paris

Salary:

Not provided

Ledger

Expiration Date

Until further notice

Requirements

Engineer profile with at least 5 years of experience in software development
Good knowledge of UI/UX practices in software development
Proficient with JavaScript and TypeScript
Strong experience in React.js development, tools and libraries
Good knowledge of testing strategies

Job Responsibility

Own from a technical standpoint the desktop and mobile development of Ledger Live Applications
Collaborate with our devs, QA, designers, and product within Ledger Live teams
Take initiative and offer technical solutions
Develop features using best practices from unit to e2e testing
Participate in code reviews
Be responsible for the quality of Ledger’s UI/UX framework
Mentor and promote tech growth within the team, helping to set high standards for the team
Work 100% on Open Source projects all gathered in our monorepo: ledger-live
Share knowledge within Ledger and beyond

What we offer

Equity: Employees are the foundation of our success, and we award stock options so you can share in that success as we grow
Flexibility: A hybrid work policy
Social: Annual company outing for Ledgerdary Days, plus frequent social events, snacks and drinks
Medical: Comprehensive health insurance policy offering extensive medical, dental and vision care coverage
Well-being: Personal development, coaching & fitness with our dedicated partners
Vacation: Five weeks of paid leave per year, in addition to national holidays and rest & relaxation (RTT) days
High tech: Access to high performance office equipment and gadgets, including Apple products
Transport: Ledger reimburses part of your preferred means of transportation
Discounts: Employee discount on all our products

Fulltime

Senior Scala Backend Engineer

To sustain the company's growth, Ledger is looking for new talents. You will sta...

Location

France , Paris

Salary:

Not provided

Ledger

Expiration Date

Until further notice

Requirements

Experienced engineer and continuous learner with 6+ years of relevant engineering experience
2+ years of technical leadership experience, including effective communication of complex concepts and cross-team coordination to ship critical products
Advanced Scala proficiency
expert-level proficiency, and advanced mastery of a second backend language (e.g., Rust, Java, Python, PHP) is a plus
Excellent collaboration and communication skills
Experience collaborating closely with QA, product management, and key stakeholders to develop and deliver on a shared vision
Led development of complex, high-performance interactive browser applications, including architecture, infrastructure, and optimization
Experience with various web architecture patterns (e.g., Microservices, Event-Driven, P2P)
Ability to apply and adapt software engineering best practices to the engineering environment
Experience in the Web3 ecosystem and in a project involving blockchain fundamentals

Job Responsibility

Develop and maintain high-performance, resilient microservices and APIs to power Ledger's products, including integrations with staking, yield, DeFi services, and blockchain explorers
Contribute to the architecture, design, and implementation of scalable solutions, proactively identifying and addressing technical challenges
Ensure software quality through testing, documentation, and performance optimization, including monitoring and alerting systems
Enhance and maintain CI/CD pipelines to secure and streamline deployment workflows
Provide technical leadership and mentorship, collaborating across teams to deliver impactful projects and improve engineering standards
Drive innovation by identifying opportunities for improvement, contributing to a shared knowledge base, and participating in technical outreach
Manage projects effectively, respecting deadlines, priorities, and deliverables

What we offer

Equity: Employees are the foundation of our success, and we award stock options so you can share in that success as we grow
Flexibility: A hybrid work policy
Social: Annual company outing for Ledgerdary Days, plus frequent social events, snacks and drinks
Medical: Comprehensive health insurance policy offering extensive medical, dental and vision care coverage
Well-being: Personal development, coaching & fitness with our dedicated partners
Vacation: Five weeks of paid leave per year, in addition to national holidays and rest & relaxation (RTT) days
High tech: Access to high performance office equipment and gadgets
Transport: Ledger reimburses part of your preferred means of transportation
Discounts: Employee discount on all our products

Fulltime

Senior Software Architect, Blockchain & DeFi

This is a hands-on position for a Senior Software Architect to join the Engineer...

Location

France , Paris

Salary:

Not provided

Ledger

Expiration Date

Until further notice

Requirements

10+ years of experience in technical design, development, execution, testing and delivery
Deep expertise/interest in backend system architecture, algorithm development, and optimization for high-throughput, high-reliability transactional services
Profound, hands-on knowledge of how various blockchain technologies (e.g., Ethereum, EVMs, non-EVMs) work under the hood, and a curiosity to investigate deeply complex, distributed systems
Ability to work effectively with internal teams to define scope, goals, project plans and deliverables
Team player with excellent interpersonal skills and ability to work cross-functionally
Excellent presentation and written communication
Engineering degree
Expert knowledge of backend development and architecting scalable, secure web services (e.g., Node.js, Python, Scala)
Experience with advanced software development practices and patterns for distributed, fault-tolerant systems
Deep understanding of smart contract security, token standards (ERC-20, ERC-721, etc.), and the architecture of common DeFi primitives (DEXs, Lending Protocols, Yield Farming)

Job Responsibility

Lead the technical scoping, design, and architecture for integrating new blockchain protocols and tokens into the Ledger ecosystem
Drive the research, understanding, and integration of complex Decentralized Finance (DeFi) protocols (e.g., DEXs, lending, staking) with Ledger services, ensuring security and scalability
Collaborate closely with engineering leads, product managers and delivery managers to ensure design on most important initiatives are properly done and of good quality
Partner with product teams to define, develop and implement development requirements for new product features
Help Engineering managers identify, tackle and prioritize most critical technical debt in our transactional services stack
Contribute hands on to the development activities of the squads being supported
Become a Ledger solution expert to thoroughly understand all use-case scenarios, especially on areas identified in this job description
Be involved in our open source projects and foster our developer community by contributing and maintaining key Open Source software, and helping build our platform strategy
Help build visibility on the roadmap by contributing to gross estimates of implementation difficulty
Help contribute to Ledger visibility by presenting in conferences or in front of customers our technology know-how

What we offer

Flexible work options - Our hybrid policy allows employees to work from home up to 3 times per week
Health & Wellness support - Health and Life Insurance
Financial growth opportunities - Employees can become shareholders in Ledger as well as other financial benefits depending on your country of work
Commuter allowance - Ledger offers a commuter allowance to contribute to your preferred means of transportation
Learning & Development - A comprehensive suite of training solutions providing a personalised learning experience for every employee

Fulltime

New

Digital Assets Senior Quality Engineer, Innovation Labs - VP

An Innovation Labs Digital Assets Senior Quality Engineer must be a highly motiv...

Location

United States , New York; Jersey City

Salary:

142320.00 - 213480.00 USD / Year

Citi

Expiration Date

January 28, 2026

Requirements

Bachelor’s degree in CS or Engineering
MS or PhD in computer science, or related discipline
10 or more years of experience in enterprise and web application quality assurance
Experience assessing and testing for functional and non-functional requirements
Experience with types of testing like unit testing, acceptance testing, regression testing, etc.
Experience automating tests for different interfaces (e.g., UI, API, Messaging)
Experience with testing data tools and testing data attributes (e.g., diversity)
Experience with applications developed using Java (Backend), AngularJS (Frontend)
Experience with testing frameworks such as Selenium, JUnit and/or TestNG
Experience with common automation and CI/CD tools for Java

Job Responsibility

To create comprehensive test strategies, detailed test plans, and specific test cases to validate software functionality and performance
To conduct manual and automated testing for different interfaces (e.g., UI, API, Messaging) to find defects, ensuring software functions as intended and meets quality standards
To identify, document, and track software defects, ensuring clear communication of issues and their resolutions to the development team
To develop, maintain and manage automated test scripts and test frameworks improve testing efficiency and coverage (happy and unhappy paths)
To develop, maintain and manage automated synthetic transactions to validate and monitor functionality to identify issues before users do
To know and properly use best and common practices, and design patterns for web3 applications
To work closely with software developers, product managers, and other team members to understand requirements, discuss test findings, and resolve issues
To contribute to the ongoing enhancement of quality assurance processes, methodologies, and tools to boost the effectiveness and efficiency of testing
To monitor the software development lifecycle to ensure quality is maintained at every stage, from design to delivery
To properly use collaborative tools to manage and deliver work in a distributed team

What we offer

medical, dental & vision coverage
401(k)
life, accident, and disability insurance
wellness programs
paid time off packages, including planned time off (vacation), unplanned time off (sick leave), and paid holidays
discretionary and formulaic incentive and retention awards

Fulltime

!

Senior Software Developer, Web3

Robinhood

Location:
Canada , Toronto

Category:
IT - Software Development

Contract Type:
Not provided

Salary:

Job Description:

Job Responsibility:

Requirements:

Additional Information:

Job Posted:
December 11, 2025

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