CrawlJobs Logo

Senior Back-End Engineer, Trading Platform

blockchain.com Logo

Blockchain

Location Icon

Location:
France, Paris

Category Icon
Category:
IT - Software Development

Job Type Icon

Contract Type:
Not provided

Salary Icon

Salary:

Not provided
Save Job
Save Icon
Apply Position

Job Description:

Blockchain.com is connecting the world to the future of finance. As the most trusted and fastest-growing global crypto company, it helps millions of people worldwide safely access cryptocurrency. Since its inception in 2011, Blockchain.com has earned the trust of over 90 million wallet holders and more than 40 million verified users, facilitating over $1 trillion in crypto transactions. Blockchain is the world's leading software platform for digital assets. Founded in 2011, we provide the world’s largest and most trusted production blockchain platform, powering more than 75 million wallets. Together with our platform of liquidity and execution services, we share the passion to build an open, accessible and fair financial future, one piece of software at a time. We are looking to hire a Senior Software Engineer to join our Institutional team in our Paris office. Blockchain.com is a high-performance culture marked by fearlessness and hyper productivity. You are a hardworking team player with a desire to learn and grow with us, someone who can work harder, faster, and smarter to deliver tangible results and process improvements.

Job Responsibility:

  • Build low latency, scalable and highly performant trading services in RUST including Order Management System (OMS), exchange gateways, risk management systems, etc.
  • Enhance and maintain OMS functionality, ensuring efficient order execution, routing, and management in a high-frequency trading environment
  • Be a part of a fast-paced dedicated engineering team committed to constantly improving and iterating on cutting edge systems
  • Be at the forefront of the cryptocurrency exchange ecosystem building out a new set of financial services, systems and architecture
  • Gain exposure to an array of low latency, high throughput techniques and algorithms
  • Ensure security is at the forefront of everything you do, employing advanced encryption schemes to secure user and company data
  • Work closely with the other tech teams to seamlessly deliver the highest quality products and improve performance across the board

Requirements:

  • Extensive experience in C++ and/or Rust
  • Experience with Python and SQL
  • Experience in one or more of the following programming areas: Multithreading
  • Network programming, including multicast
  • Performance benchmarking and tuning
  • Extreme interest in delivering high quality software
  • Experience in trading systems architecture: Familiarity with Order Management Systems (OMS), exchange gateway connectivity, market data ingestion and processing, as well as high-throughput, low-latency systems
  • Basic understanding of algorithms, data structures, databases and distributed systems is must

Nice to have:

  • You possess an innate curiosity, and thrive on learning new technologies
  • You take a pragmatic approach to developing clean solutions to complex problems
What we offer:
  • Full-time salary based on experience and meaningful equity in an industry-leading company
  • Hybrid model working from home & our office in Paris
  • Work from Anywhere Policy: You can work remotely from anywhere in the world for up to 20 days per year
  • ClassPass
  • Budgets for learning & professional development
  • Unlimited vacation policy
  • work hard and take time when you need it
  • Apple equipment
  • The opportunity to be a key player and build your career at a rapidly expanding, global technology company in an emerging field
  • Flexible work culture

Additional Information:

Job Posted:
December 06, 2025

Employment Type:
Fulltime
Work Type:
Hybrid work
Icon
View All Jobs In This Company
Job Link Share:
Copy Link Icon
Facebook Icon Twitter Icon LinkedIn Icon

Looking for more opportunities? Search for other job offers that match your skills and interests.

Briefcase Icon

Similar Jobs for Senior Back-End Engineer, Trading Platform

Senior C# Developer – Pricing Engines

Join a fast-paced trading tech environment where your C# code powers real-time p...
Location
Location
Netherlands , Amsterdam
Salary
Salary:
Not provided
levy-professionals.com Logo
Levy Professionals
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • Extensive experience with C#/.NET in complex back-end or trading systems
  • Proven low-latency, high-throughput engineering expertise (ideally in pricing or market data)
  • Deep knowledge of concurrency, async IO, performance tuning, profiling, TCP/binary protocols
  • Strong understanding of financial markets: FX spot/forwards/swaps, bonds, IR swaps, curves, PV/DV01
  • Experience working with front-office stakeholders
  • Clear communication and the ability to simplify complex concepts
Job Responsibility
Job Responsibility
  • Build high-performance C# services on .NET Core for real-time pricing and risk
  • Refactor and migrate existing C# and Java components into a unified .NET Core platform
  • Optimise multithreading, memory, GC and network performance on bare-metal servers
  • Implement curve handling and curve location for FX, bonds and rates
  • Integrate with trading tools, market data feeds and external pricing/execution platforms
  • Ensure safe, efficient price distribution via internal messaging
  • Contribute to automated testing, CI/CD and observability in a 24/7 trading setup
  • Work in an agile DevOps team with shared support responsibilities
Read More
Arrow Right

Senior SDET

At Ledger, we’re proud to be the global platform for digital assets and Web3, wi...
Location
Location
France , Paris
Salary
Salary:
Not provided
https://www.ledger.com Logo
Ledger
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • Hands-on experience in developing test automation solutions using Typescript (Python is optional)
  • Proficiency using QA Automation Frameworks : Playwright, Detox or Selenium
  • Proficient in front-end and back-end testing tools and approaches
  • Good knowledge of development processes, design patterns and programming principles
  • Prior experience designing workflows and building CI/CD pipelines
  • Able to work effectively across multiple teams, build strong technical relationships, and operate in a highly collaborative environment
  • Curious, pragmatic, and innovative — you stay current with industry trends, challenge assumptions, and identify opportunities to improve quality and engineering efficiency
  • Strong communication and influence skills in spoken and written English, capable of explaining risks, trade-offs, and technical constraints clearly to both engineers and non-engineers
  • Broad technical awareness across different codebases, platforms, and testing approaches, with the ability to quickly understand new areas and guide teams toward better quality practices
  • Solid understanding of Bash/shell scripting and comfortable working with Kubernetes-based infrastructure (logs, pods, CI environments, debugging test environments, etc.)
Job Responsibility
Job Responsibility
  • Designing and improving tools, workflows, and processes that strengthen quality across the SDLC
  • Performing manual testing when automation is not practical or when deep exploratory validation is required
  • Building new and maintaining existing workflows for CI/CD pipelines
  • Maintaining automation frameworks and test tooling (primarily TypeScript
  • Python appreciated but optional)
  • Improving test coverage and helping teams integrate automated testing into their development routines
  • Integrating automated testing into Quality Assurance practices
  • Running workshops, coaching sessions, and pair-testing/pair-programming to raise automation maturity across teams
  • Communicating with product squads about the improvements following the strategy, sharing of experiences, best practices and lessons learnt
What we offer
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
Read More
Arrow Right
New

Bartender

What’s brewing in your future? If you’re striving for a glass half-full rather t...
Location
Location
United States , Mancos
Salary
Salary:
12.14 USD / Hour
Aramark
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • Previous experience as a bartender preferred
  • Knowledge of bartending principles and recipes and current trends
  • Able to obtain all Aramark and state/local required alcohol service certifications
  • Displays phenomenal hospitality, friendliness, and comprehensive beverage knowledge
  • Demonstrates organizational & multi-tasking skills, accuracy, and attention to detail
  • Requires occasional lifting, carrying, pushing, pulling of up to 25 lb
  • Enjoys working in a fast-paced fun work environment
  • Ideal candidate will be available to work a flexible schedule that includes evenings, weekends, and holidays
Job Responsibility
Job Responsibility
  • Greets guests and takes orders, processes cash and credit card transactions
  • Mixes and serves both alcoholic and non-alcoholic beverages
  • May include providing servers drinks from the service well
  • Adheres to all established alcohol service policies and safe drinking guidelines including checking patrons’ identification to ensure that they meet minimum age requirements for alcohol consumption
  • Adheres to cash handling policies
  • Sets up and breaks down workstations, including cleaning and sanitizing
  • Takes inventory counts and ensures product is stocked to appropriate levels
  • Provides excellent guest service, anticipating guests' needs and ensuring guest satisfaction
  • Maintains a positive demeanor towards guests, clients, co-workers, etc.
  • Ensures security of company assets
What we offer
What we offer
  • medical
  • dental
  • vision
  • work/life resources
  • retirement savings plans like 401(k)
  • paid days off such as parental leave and disability coverage
  • Fulltime
Read More
Arrow Right
New

Dishwasher

Here at Aramark, we take pride in the level of service and safety we provide. We...
Location
Location
United States , Mancos
Salary
Salary:
15.16 USD / Hour
Aramark
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • Demonstrates an understanding of basic sanitation procedures
  • Must be able to follow basic safety procedures due to exposure to hazardous chemicals
  • Must be available to work flexible hours including evenings and weekends
Job Responsibility
Job Responsibility
  • Ensure guest satisfaction by maintaining all dishes, pots, pans, silverware, glasses, equipment, and kitchen utensils are cleaned and sanitized
  • Maintains dishwashing station, three compartment sink and related areas cleaned
  • Ensures equipment is clean and in working condition
  • reports any issues to management
  • Performs other light maintenance and custodial tasks
  • Maintains excellent customer service and positive attitude towards guest, customers, clients, co-workers, etc.
  • Adheres to Aramark safety policies and procedures including proper food safety and sanitation
  • Ensures security of company assets
What we offer
What we offer
  • medical, dental, vision, and work/life resources
  • retirement savings plans like 401(k)
  • paid days off such as parental leave and disability coverage
  • Fulltime
Read More
Arrow Right
New

Dishwasher

Are you self-motivated and proud of the work you do? Here at Aramark, we take pr...
Location
Location
United States , Tampa
Salary
Salary:
Not provided
Aramark
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • Demonstrates an understanding of basic sanitation procedures
  • Must be able to follow basic safety procedures due to exposure to hazardous chemicals
  • Must be available to work flexible hours including evenings and weekends
Job Responsibility
Job Responsibility
  • Ensure guest satisfaction by maintaining all dishes, pots, pans, silverware, glasses, equipment, and kitchen utensils are cleaned and sanitized
  • Maintains dishwashing station, three compartment sink and related areas cleaned
  • Ensures equipment is clean and in working condition
  • reports any issues to management
  • Performs other light maintenance and custodial tasks
  • Maintains excellent customer service and positive attitude towards guest, customers, clients, co-workers, etc.
  • Adheres to Aramark safety policies and procedures including proper food safety and sanitation
  • Ensures security of company assets
Read More
Arrow Right
New

Lead Cook

The Lead Cook is responsible for cooking and preparing food using standard recip...
Location
Location
United States , Knoxville
Salary
Salary:
Not provided
Aramark
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • Previous supervisor experience in a related role preferred
  • Experience as a cook or related role required
  • Ability to work independently with limited supervision required
  • Proven knowledge of the basic principles of food preparation, various cooking methods, and food safety regulations such as proper food handling, sanitation, and storage
  • Food safety certification required
  • Demonstrates basic math and counting skills
  • Demonstrates effective interpersonal and communication skills, both written and verbal
Job Responsibility
Job Responsibility
  • Schedules and assigns daily work activities to staff and supervises the completion of tasks
  • Trains and guides staff on job duties, standard food safety and sanitation procedures, cooking methods, etc.
  • Cooks and prepares food following production guidelines and standardized recipes
  • Sets up workstation with all needed ingredients and equipment
  • Prepares ingredients by measuring, weighing, mixing, chopping, trimming, and peeling food items
  • Safely uses all food utensils including knives
  • Operates equipment such as ovens, stoves, slicers, mixers, etc.
  • Bakes, roasts, broils, steams, and uses a variety of cooking methods on meats, vegetables, and other foods
  • Arranges, garnishes, and portions food following established guidelines
  • Properly stores food by following food safety policies and procedures
  • Fulltime
Read More
Arrow Right
New

Human Resources Manager

The HR Manager is responsible for providing support to managers and employees re...
Location
Location
United States , Yosemite
Salary
Salary:
72000.00 - 80000.00 USD / Year
Aramark
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • 3+ years of experience in employee relations or related experience
  • Bachelor’s degree in HR or a equivalent experience required
  • Strong written and verbal communication skills
  • able to communicate with tact and diplomacy
  • Ability to influence others on policies, practices, and procedure
  • Effective at capturing and synthesizing information from multiple parties
  • Solid understanding of employment laws
  • Ability to handle sensitive and highly personal information daily and maintain confidentiality in a mature and insightful manner
  • Proficient in Microsoft Office and experience with case management technology preferred
  • Valid US Driver’s License and ability to operate a company vehicle
Job Responsibility
Job Responsibility
  • Resolve general employee relations issues
  • provide direction and recommendations to all levels of leadership, ensure fairness and consistency of policy and practice
  • Provide consultation to managers on policies and compliance regarding employment-related matters
  • Investigate and resolve employee complaints, issues, and concerns regarding employment practices originating from the employee hotline and other sources
  • Conduct interviews and prepare relevant documentation using investigation guidelines
  • Recommend appropriate resolution of complaints, develop action plans and follow up to ensure completion
  • Interact with internal (COs, Field HR) and external resources (vendors) to acquire needed information to lead work to completion
  • Coordinate all leave of absence cases to include general administration, comprehensive case management, and compliance with all related policies and employment laws
  • Review dashboard metrics daily to optimize efficiency and ensure work is completed in accordance with service level agreements (SLAs)
  • Assist with HR projects and initiatives as the need arises
What we offer
What we offer
  • medical
  • dental
  • vision
  • work/life resources
  • retirement savings plans like 401(k)
  • paid days off such as parental leave and disability coverage
  • Fulltime
Read More
Arrow Right
New

Human Resources Coordinator

The HR Generalist Coordinator is responsible for providing customer service to e...
Location
Location
United States , Yosemite National Park
Salary
Salary:
19.00 - 20.00 USD / Hour
Aramark
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • Experience working in a call center environment strongly preferred
  • Strong computer/technical skills
  • previous HRIS experience preferred
  • Bachelor’s degree in HR or related field strongly preferred
  • Knowledge of HR concepts and terminology
  • Effective verbal communication skills
  • Effective listening skills
  • Confirmed customer service orientation
  • Confident phone presence
  • Solid ability to grasp information quickly and probe optimally when required
Job Responsibility
Job Responsibility
  • Provide excellent customer service in response to phone and online inquiries from employees and managers
  • Resolve inquiries by accessing information in multiple HR systems
  • Triage general inquiries to ensure accurate work category is assigned
  • Raise more sophisticated issues to Tier 2 within myHR or the appropriate COE for advanced support and follow-up as the need arises
  • Process transactions by collecting required information or backup documentation from the employee, manager, or HR
  • Respond to phone or online help requests on navigating the HR Portal and other HR-related systems
  • Perform quality assurance reviews on electronic and manual transactions
  • Partner with Payroll and other COEs, as appropriate to resolve issues
  • Manage workload efficiently to fulfill commitments in accordance with established service level agreements (SLAs)
What we offer
What we offer
  • Medical
  • Dental
  • Vision
  • Work/life resources
  • Retirement savings plans like 401(k)
  • Paid days off such as parental leave and disability coverage
Read More
Arrow Right
Welcome to CrawlJobs.com –
Your Global Job Discovery Platform
At CrawlJobs.com, we simplify finding your next career opportunity by bringing job listings directly to you from all corners of the web. Using cutting-edge AI and web-crawling technologies, we gather and curate job offers from various sources across the globe, ensuring you have access to the most up-to-date job listings in one place.
Jobs by Category
Art and Entertainment Jobs Banking Jobs Call Center Jobs Construction Jobs Consulting Jobs Customer Service Jobs Education Jobs Energy Jobs Finance Jobs Gastronomy Jobs Health and Beauty Jobs Hospitality and Tourism Jobs Human Resources Jobs Insurance Jobs IT - Administration Jobs IT - Software Development Jobs Legal Jobs Logistics Jobs Manufacturing Jobs Marketing, Digital Marketing, SEO, SEM Jobs Media Jobs Nursing Jobs Office Administration Jobs Pharmacy Jobs Physical Work Jobs Public Relations Jobs Public Sector Jobs Purchasing Jobs Quality Control Jobs Real Estate Jobs Research and Development Jobs Sales Jobs
Job Positions Jobs by Country
United States Jobs United Kingdom Jobs India Jobs Australia Jobs Canada Jobs Poland Jobs Ireland Jobs Spain Jobs
Company
Blog About Us Contact
Follow Us
Facebook
X (Twitter)
LinkedIn
Instagram
© 2025 CrawlJobs Ltd. All Rights Reserved
Terms & Conditions Privacy Policy