CrawlJobs Logo

Numerical optimization specialist

France, Paris · Job Posted December 06, 2025
Apply Position
Job Link Share

Job Description

As a member of our R&D teams, you will apply your digital skills in the field of operations research to design and develop cutting-edge optimization solvers. You will often have the opportunity to work on various types of digital libraries developed by Artelys: continuous and mixed nonlinear programming (Artelys Knitro), constraint programming (Artelys Kalis), optimization of energy systems (Artelys Crystal Optimization Engine). You will be responsible for developing new algorithmic features combining mathematics and computer science, while striving to maintain a high level of software robustness and performance.

Job Responsibility

  • Apply digital skills in the field of operations research to design and develop cutting-edge optimization solvers
  • work on various types of digital libraries developed by Artelys
  • develop new algorithmic features combining mathematics and computer science
  • maintain a high level of software robustness and performance
  • develop solutions for numerical and combinatorial optimization software, computation modules for clients, or prototypes within research projects

Requirements

  • Holder of a PhD in applied mathematics or operations research, or have equivalent experience of at least 3 years after obtaining an engineering degree or higher education qualification
  • proficiency in Python or C/C++ programming language
  • expertise in various optimization methods: graph theory, continuous optimization algorithms, combinatorial optimization algorithms, nonlinear optimization, etc.
  • proficiency in designing and optimizing algorithms for high performance computing (HPC) environments
  • fluency in English

Nice to have

  • French is a plus
  • additional knowledge in software programming (Spring, BDD, NoSQL, REST/Microservices, Message queuing, etc.) and in compilation
  • proficient in other programming languages (MATLAB, R, Julia, Java, C#)
  • proficient in linear algebra tools (especially methods for solving linear systems)
  • previous contributions to open source projects related to numerical optimization, simulation, or computational science
  • active participation in relevant communities and networks

What we offer

  • Flexible working hours
  • offices located in the city center

Looking for more opportunities?

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

Similar Jobs for

Numerical optimization specialist

8 matching positions

New

Team Banker

Citi Global Wealth at Work is one of the core pillars of Citi’s Wealth strategy,...
Location
Location
United Kingdom , London
Salary
Salary:
Not provided
https://www.citi.com/ Logo
Citi
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • A good track record of experience in a similar role
  • Extensive and proven experience in Private Banking having covered the UHNW market / Extensive experience in working with and/or leading client teams and transactions / Demonstrated track record in relationship selling
  • Demonstrates extensive knowledge of all Citi Private Bank banking and product systems, platforms, tools and capabilities
  • Pro-active, initiative and driven / Excellent communication skills, written and verbal / Excellent relationship building skills (with clients, and across hierarchical levels and other functions)
  • Numerate, analytical mind, with strong problem-solving skills / Ability to challenge status quo and continuously optimize processes and tasks in own area of responsibility / Ability to build effective working relationships across hierarchal levels
  • Regulated role with applicable/mandatory qualifications and/or licenses / RDR compliant, where relevant
  • Investment Advisory Diploma Level 4 or CFA
Job Responsibility
Job Responsibility
  • Work in partnership with the Private Bankers on the team, predominantly the team leader, to provide excellent client service and prospecting support
  • The role works closely with clients, prospects and Private Bankers as well as all product partners, to provide a high level of sales and product experience and support the banker in all aspects of marketing, prospecting, presentation preparations, reporting and regulatory requirements
  • Solid knowledge of bank products and regulatory requirements as well as excellent contact and communication skills are critical
  • Assist bankers and clients in all related matters with a particular focus on: Work in partnership with the Private Banker team to address the financial needs and expectations of the client
  • Exceed client expectations by thoroughly understanding problems and providing creative solutions
  • Maintain close contact with clients in conjunction with the Private Bankers
  • Provide direct and indirect sales support to the Private Bankers through joint calls and work closely with product specialists to implement client decisions as well as ensuring after-sales follow-up
  • Partner with Private Bankers to develop comprehensive understanding of client needs and to assist the Private Bankers in formulating and executing specific account strategies, proposing solutions and negotiating standard transactions
  • Provide innovative support in marketing strategies
  • Assist the Private Bankers in executing sales strategies for formulating strategies, if required
  • Fulltime
Read More
Arrow Right
New

Senior Director, North America Marketing

It's fun to work in a company where people truly believe in what they're doing! ...
Location
Location
United States , Los Angeles
Salary
Salary:
224000.00 - 280000.00 USD / Year
blackline.com Logo
BlackLine
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • 15+ Years Of Experience In B2B SaaS Marketing, Including 5+ Years In Regional Leadership Roles
  • Deep Understanding Of Pipeline Contribution Models, Account-Based Marketing, And Intent-Based Strategies
  • Executive Presence And Experience Influencing C-Level Stakeholders
  • Strong Operational And Analytical Skills
  • Able To Define And Measure Marketing Impact
  • Demonstrated Ability To Build And Lead High-Performing Teams
  • Excellent Communication And Storytelling Capabilities, Both Written And Verbal
  • Experience With Tools Such As Salesforce, Marketo, 6Sense, Tableau, And Event/Engagement Platforms
  • Experience Training And Managing People
  • Significant Experience In Event And Trade Show Management
Job Responsibility
Job Responsibility
  • Strategy development and implementation of a comprehensive marketing plan that aligns with the overall business objectives and drives revenue growth in the North America
  • Lead a team of marketing managers and/or specialists. Provide guidance, support and mentorship to ensure the team's success
  • Own and manage all elements of the Beyond the Black North America event and numerous trade shows and sponsored events
  • Collaborate with cross-functional teams, including sales, product marketing, solutions marketing and corporate marketing, to execute global integrated marketing campaigns that effectively target key accounts in the territories
  • Cultivate strong relationships with key stakeholders, including regional sales teams, channel partners, and industry influencers, to drive collaboration and ensure marketing efforts are aligned with sales goals
  • Develop and manage regional marketing budget including events, field marketing, and customer marketing, ensuring optimal allocation of resources to achieve maximum return on investment
  • Define key performance indicators (KPIs) for events, field and customer marketing activities, track and analyze campaign performance, and provide regular reports and insights to senior leadership
  • Collaborate with other regional marketing leaders and contribute to the development and sharing of best practices, marketing tools, and processes to enhance overall marketing effectiveness
What we offer
What we offer
  • short-term and long-term incentive programs
  • robust offering of benefit and wellness plans
  • Fulltime
Read More
Arrow Right
New

Sourcing Specialist

We are looking for a Sourcing Specialist to support and execute sourcing project...
Location
Location
Canada , Montréal
Salary
Salary:
Not provided
https://www.randstad.com Logo
Randstad
Expiration Date
July 18, 2026
Flip Icon
Requirements
Requirements
  • 1–2 years’ experience in a procurement or sourcing role, preferably in an FMCG environment
  • Basic understanding of Canadian supply markets and procurement principles
  • Exposure to supplier negotiation and supplier relationship management
  • Demonstrated interest in procurement strategy and business operations
  • Some experience working cross-functionally or in project support roles
  • Analytical thinker with problem-solving skills
  • Excellent interpersonal and communication skills
  • Foundational understanding of procurement concepts such as budget, savings, RFx, supplier relationship management
  • Ability to handle supplier negotiation independently to drive savings and efficiency
  • Familiar with procurement contracts and able to design commercial structure and terms
Job Responsibility
Job Responsibility
  • Lead and manage sourcing projects (including RfI, RfQ, RfP) from initiation to award on assigned category, with support from the Sourcing Manager
  • Negotiate with suppliers to drive cost savings, improve commercial terms, and secure value-added services
  • Work closely with stakeholders to define sourcing strategies that align with business needs and procurement goals
  • Collaborate in the development and implementation of cost optimization initiatives across key indirect spend categories
  • Monitor and track team compliance with procurement policies, sourcing processes, and governance frameworks
  • Ensure proper documentation and approvals are in place for sourcing projects and contract activities
  • Maintain and update compliance reports to flag deviations and drive corrective actions
  • Maintain and update different reports for data-driven decision making and overall tracking on spend and savings
  • Participate in supplier onboarding, contract reviews, and performance tracking to ensure full lifecycle management
What we offer
What we offer
  • Weekly insurance benefit of $10
  • Affordable insurance starting from the first day of employment
  • Employees have access to a cafeteria within the office premises
  • The office provides a gym facility for employees to use
  • Employees have access to an on-site clinic
  • Enjoy a two-week vacation with an additional 5 paid sick days
  • Fulltime
Read More
Arrow Right

Fulfilment Integration Specialist

Customer Fulfilment (CFF) is a fundamental part in making IKEA multichannel reta...
Location
Location
China , Beijing
Salary
Salary:
Not provided
https://www.ikea.com Logo
IKEA
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • University degree (Logistics, Economics, Business Administration or related) or equivalent working experience in retail/home furnishing/supply chain/customer service.
  • Very good computer skills and high proficiency in Microsoft Office
  • Proven analytical and numeric skills and the ability to identify and address required actions
  • Experience in problem-solving and process improvement
  • Confident and clear communication in English both written and verbal
Job Responsibility
Job Responsibility
  • Contributing to the planning and execution of Commercial activation, local, country, and global.
  • Contributing to the execution of Operational Forecasting in the unit in co-operation with commercial partners, by proactively monitoring and highlighting deviations and securing high quality in the operational forecast.
  • Contributing to securing correct range management in the unit by proactively monitoring and taking needed actions.
  • Contributing to securing correct stock accuracy in the unit by proactively monitoring and taking needed actions.
  • Contributing to securing optimal Stock structure by proactively working to reduce Avoidable stock, resulting in healthy capacity utilization and low costs.
  • Fulltime
Read More
Arrow Right

Billing Specialist

This Billing Specialist role offers rare stability with fixed daytime hours from...
Location
Location
Belgium , Mouscron
Salary
Salary:
Not provided
https://www.randstad.com Logo
Randstad
Expiration Date
July 15, 2026
Flip Icon
Requirements
Requirements
  • You are proficient in English or Dutch
  • Your Excel skills enable you to process numerical data with speed and accuracy
  • Your team spirit and strong interpersonal skills
Job Responsibility
Job Responsibility
  • Ensure the issuance and auditing of transport-related invoices with high precision
  • Collaborate closely with operational departments to validate billing data
  • Manage client files while ensuring compliance with deadlines and internal quality procedures
  • Handle specific client inquiries regarding billing to ensure seamless service
  • Use IT tools daily to optimize the processing of administrative records
  • Fulltime
Read More
Arrow Right

Service Fulfilment Operations Specialist

Hej! You are in control of your cookies... (full text above)
Location
Location
Belgium , Zaventem
Salary
Salary:
Not provided
https://www.ikea.com Logo
IKEA
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • University degree (Logistics, Economics, Business Administration or related) or 1-2 years’ experience in the area of expertise
  • Retail/home furnishing/supply chain/customer service experience and interest
  • Confident and clear communication on English both written and verbal
  • Excellent computer skills and high proficiency on Microsoft Office
  • Proven analytical and numeric skills and ability to identify required actions
  • Experience in problem solving and improving ways of working
Job Responsibility
Job Responsibility
  • Responsible for creating performance reports from IT solutions
  • Responsible to secure excellence in operations and quality under the scope of Service Fulfilment
  • Contribute to short-, and mid-term development of existing service partners through trainings
  • Responsible to define and maintain short and mid-term service and capacity parameters
  • Responsible for securing accurate reporting of service costs
  • Contribute to securing efficiency and implementing improvements on the market
  • Contribute with both knowledge and expertise to optimal multichannel development and tendering activities
  • Contribute to the implementation of the Customer Fulfilment sustainability agenda for Service Fulfilment
What we offer
What we offer
  • Competitive salary
  • Extended insurance package
  • Staff discount
  • IKEA staff restaurant with delicious healthy food
  • Eco-vouchers
  • IKEA bonus based on commercial results of our stores
  • Reward for loyalty (TACK pension saving program)
  • Motivating extra for flexibility in early and late hours
  • Fulltime
Read More
Arrow Right

Fulfilment Integration Specialist

We’re the team behind the scenes that make the IKEA products available to the ma...
Location
Location
India , New Delhi
Salary
Salary:
Not provided
https://www.ikea.com Logo
IKEA
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • Good understanding of retail, logistics, fulfilment, and customer service operations
  • Understand customer needs, market expectations, and operational excellence standards
  • Comfortable working with KPIs, operational data, and forecasting tools
  • Strong analytical and numerical skills with the ability to identify gaps and solve problems
  • Proficient in Microsoft Office and relevant operational systems/tools
  • Proactive and tactical in handling operational challenges and business opportunities
  • Strong collaboration and stakeholder management skills across teams and functions
  • Experience in process improvement and driving operational efficiency
  • University degree in Logistics, Economics, Business Administration, or related field, or equivalent work experience in retail/supply chain/customer service
Job Responsibility
Job Responsibility
  • Support and drive customer-centric fulfilment operations with focus on performance and efficiency
  • Contribute to planning and execution of commercial activations at local and market levels
  • Support operational forecasting by monitoring trends, identifying deviations, and improving forecast accuracy
  • Ensure high stock accuracy through proactive monitoring and corrective actions
  • Help maintain optimal stock structure to reduce avoidable stock and operational costs
  • Ensure goods flow processes are executed as per standard operating procedures, including safety and quality measures
  • Collaborate with fulfilment, distribution, and commercial teams for smooth forward and reverse flow of goods
  • Support replenishment processes, waste management, and click-and-collect operations
  • Work closely with commercial teams to ensure proper resource planning based on forecast and commercial calendar
  • Contribute to continuous improvement initiatives for better availability, lead times, operational efficiency, and customer experience across sales channels
  • Fulltime
Read More
Arrow Right

Fulfilment Integration Specialist

Location
Location
South Korea , Gangdong
Salary
Salary:
Not provided
https://www.ikea.com Logo
IKEA
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • Interest in home furnishing, people’s life at home, and the IKEA product range
  • Passion for developing people and talent
  • Good knowledge of IKEA processes (retail and logistics processes), tools, and working methods
  • Good understanding of customers’ needs, demands, and expectations in the local market
  • Good knowledge and understanding of KPIs used as success measures for your function
  • Good knowledge of relevant IKEA systems, solutions, and tools
  • Good knowledge of the IKEA Concept, the IKEA Brand Identity, and the IKEA Culture Values
  • Ability to build trustful relationships across the organization
  • Good communication and influencing skills
  • High proficiency in Microsoft Office (advanced Excel skills are a plus)
Job Responsibility
Job Responsibility
  • Enable efficient operations by supporting supply integration, cooperating with supply chain partners, and securing correct unit replenishment
  • Enable preconditions, secure availability, and ensure efficient execution of replenishment and customer order fulfilment processes in the fulfilment unit
  • Contribute to planning and execution of commercial activation at local, country, and global levels
  • Contribute to operational forecasting in cooperation with commercial partners by proactively monitoring deviations and ensuring high-quality forecasts
  • Contribute to securing correct range management in the unit by proactively monitoring and taking necessary actions
  • Contribute to securing accurate stock levels in the unit by proactively monitoring and taking necessary actions
  • Contribute to securing an optimal stock structure by reducing avoidable stock, ensuring healthy capacity utilization and low costs
  • Fulltime
Read More
Arrow Right