The INFORMS Optimization Section was formed in the fall of 1995 and became a Society in 2004.

The Optimization Society has two goals:

  1. to promote the development and application of optimization methods and software tools for the solution of problems in Operations Research/Management Science, and
  2. to encourage the exchange of information among practitioners and scholars in the optimization area.


2020 INFORMS Optimization Society Conference is postponed. Read more here.

Optimization Society Prizes

The deadline for applying Optimization Society prizes are May 1st. Check the page for more details.

IOS Election Results

The INFORMS Optimization Society welcomes the new officers to the executive board:

Chair-Elect: Alper Atamturk, Chair-elect Term: 2020; Chair Term: 2021-2022.
Vice Chair, Computational Optimization and Software: Ruth Misener, Term: 2020-2021.
Vice Chair, Integer and Discrete Optimization: Merve Bodur. Term: 2020-2021.
Vice Chair for Network Optimization, Jose Walteros. Term: 2020-2021.
Vice Chair, Linear and Conic Optimization, Nathan Krislock. Term: 2020-2021.
Treasurer/Secretary: Andy Sun, Term: 2020-2021.
We congratulate the new officers but also thank everyone who ran for an officer position. Please note that all of the vice chairs will resume positions immediately in January 2020.

We thank all of the outgoing officers for their service and leadership.

Optimization Society Conference 2020

[POSTPONED] The INFORMS Optimization Society conference will take place on March 15-17, 2020 in Greenville, SC. See the conference page for details.

OS Newsletter issue is out

The Fall 2018 issue of the OS newsletter is now available. Check the newsletter page for the past editions.

Discussion platform

The INFORMS Optimization Society has a community web page. You are very welcome to join it and participate in its discussions.

Optimization Stories

The OS website has a page for Optimization stories: success stories of Optimization that are documented as videos and other easily shared formats.


  • Spokane, Washington, Job Description Avista is seeking an Operations Research (OR) Analyst to support, analyze, design and develop leading edge optimizations and analytics based decision support tools. This position works independently and with others in Energy Resources preparing complex modeling evaluations of electric resources. Our ideal candidate is familiar with and has theoretical background and practical experience in advanced optimization techniques, including linear, non-linear programming, and mixed integer program theory, including experience using commercial solvers. Has experience in applied operations research, including decision analysis, optimization, simulation, statistics, and stochastic modeling. Is able to architecture, develop, implement, and test software and models in these areas. Can program in Python and other software languages in support of software/model development. Is recognized as a highly productive and innovative contributor in the solution of multi-discipline problems. Prepare modeling studies for new resources, power contracts, upgrades, and redevelopment of existing electric generation resources. Evaluate the costs and benefits of resource alternatives and provide recommendations through written memorandums and oral presentations. Act as an internal consultant to various managers in modeling of business decisions, action plans, and improved operations. Architect, develop, implement, and test software and models supporting various Energy Resource objectives. Develop in-depth models for analysis of various resource acquisition and optimization strategies, including models developed in spreadsheets and industrial solver models such as Gurobi and CPLEX. Consult with the software development teams to derive the best solutions for business. Operate and maintain the Company’s Avista Decision Support System (e.g., ADSS) model. Coordinate work assignments with other sections and departments to bring about the completion of activities requiring the effort of multiple work groups. To Apply Applications must be submitted directly through our website. https://www.myavista.com/about-us/working-at-avista   Complete an online application and attach your resume and cover letter to your profile. All documents must be attached to your application at the time of submitting your application for review . No documents can be attached after you click "Submit". Pre-employment screening requirements Employment is contingent upon the successful completion of a drug test, background check and motor vehicle records review.    Avista’s Commitment to Equal Opportunity and Affirmative Action Avista is committed to the goal of Equal Opportunity Employment and Affirmative Action. All qualified applicants will be considered regardless of race, color, religion, national origin, sex, gender identity, sexual orientation, marital status, age, sensory, mental or physical disability (unless based upon a bona fide occupational qualification), Veteran status or any other classification protected by nondiscrimination law. Please view Equal Employment Opportunity Posters provided by OFCCP here . Avista will make reasonable accommodation to assist a qualified person with a disability in the job application, interview process, and to perform the essential functions of the job whenever possible, where undue hardship would not be created for Avista. Please let us know if you would like assistance. Requirements Requires a Bachelor’s degree from an accredited college or university with a focus in Industrial Engineering, Operations Research, Mathematics or related field. More than 5 years’ experience and significant growth as an Operations Research analyst or from another related field (a graduate degree may substitute for some of the experience requirement). Strong spreadsheet and database skills are expected. Strong capacity to work independently and bring new business concepts, analyses, and strategies to the peer group. Previous project management experience is preferred. Develops and maintains new models to support company business, is a thought leader in the department Excellent written, verbal and interpersonal skills. Ability to work efficiently and effectively in a fast paced environment is expected. Other combinations of experience and/or education may be considered Incentive Plan included with offer.
  • Toronto, Ontario, Canada, Employee Status: Regular Bargaining Unit: Non-Union Pay Range: $140,592 - $197,831 Location: 20 Bay Street, Toronto, ON Closing Date: 08-Mar-2021 Metrolinx is connecting communities across the Greater Golden Horseshoe. Metrolinx operates GO Transit and UP Express, as well as the PRESTO fare payment system. We are also building new and improved rapid transit, including GO Expansion, Light Rail Transit routes, and major expansions to Toronto’s subway system, to get people where they need to go, better, faster and easier. Metrolinx is an agency of the Government of Ontario. We embody our values in everything that we do. We Serve with Passion, Think Forward, and Play as a Team. If you can relate, we want to hear from you! Our GO Expansion Project Delivery group is seeking a Director to provide strategic leadership and direction for the design, development, and execution of capital infrastructure encompassing the GO rail corridors and stations. The objective of this position is to build a comprehensive regional rapid transit network to meet the corporate mandate and business objectives while adhering to Metrolinx’s highest standards for safety, efficiency, and legal/regulatory/policy compliance, while delivering excellent customer experience   What will I be doing?   Provides strategic and tactical leadership and direction to deliver large-scale, multi stakeholder capital infrastructure projects. Leads execution of project planning, design, staging, and tendering of commuter rail infrastructure that integrates and expands upon existing GO Transit and municipal services and operations; directs the creation of a phasing plan to identify optimal sequencing of infrastructure and service construction and deployment. Coordinates the delivery of infrastructure projects on behalf of the VP, encompassing construction, commissioning, and deployment into operational service (e.g. tracks, grade separations, stations, platforms, parking, train support facilities) in accordance with corporate project management standards, procedures, controls and environmental requirements to minimize the impact on service and to maintain a high level of customer service. Ensures strategic management of third party project requirements and dependencies including property, utility and stakeholder agreements. Provides senior leadership oversight and direction to employees and vendors engaged in interdependent project teams (e.g. defines team member roles, responsibilities, and expectations); delivers timely feedback to ensure a cohesive operational unit and the optimum use of team skills; manages staff and monitors work assignments for adherence to timelines; monitors the achievement of performance objectives; develops and implements action plans to address performance gaps What skills & qualifications do I need? Completion of a degree in Transportation or Civil Engineering, or a related discipline – or a combination of education, training and experience deemed equivalent. Valid Professional Engineering (P.Eng.) license recognized by the Professional Engineers of Ontario (PEO) would be considered an asset. Minimum 10 years’ progressively senior project management experience with direct involvement in providing senior leadership and direction in the design, project management, development, and execution of infrastructure projects . Knowledge of principles and practices of architecture, urban planning, engineering design and their application to the construction of infrastructure, facilities, and related works. Understanding of relevant legislation and codes (e.g. Metrolinx Act, Places to Grow Act, Planning Act, Revised Statutes of Ontario (RSO), Municipal Act, Employment Standards Act, Occupational Health & Safety Act, etc. ). Knowledge of legal/regulatory requirements, standards and operating rules governing passenger rail services,). Service-focused management, leadership, and influencing skills to provide senior technical and administrative leadership to an operating or functional unit is essential. Strong analytical and negotiation skills and experience with vendor management to manage development and delivery of externally provided products and services (e.g. negotiate contracts, interpret, compile, and administer contracts and memoranda of understanding (MOUs)). Proficiency in MS Office (e.g. Outlook, Word, Excel, PowerPoint, etc.) is required. Strong Project Management and communication skills required. Project Management Professional Certification (PMP) an asset. Excellent interpersonal, communication (oral/written/presentation) and negotiation skills are required to negotiate contracts, monitor legal, regulatory, and procedural compliance, direct construction activities, manage stakeholders and build internal and external relationships and participate in committees Accommodation: Accommodation will be provided throughout the hiring process, as required. Applicants must make their needs known in advance. Application Process: All applicants must be legally entitled to work in Canada. Metrolinx will be using email to communicate with you for all job competitions. It is your responsibility to include an updated email address that is checked daily and accepts emails from unknown users. As we send time sensitive correspondence, we recommend that you check your email regularly. If no response is received, we will assume you are no longer interested in pursuing the opportunity. Please be advised that a Criminal Record Check may be required of the successful candidate. Should it be determined that any background information provided be misleading, inaccurate or incorrect, Metrolinx reserves the right to discontinue with the consideration of your application. To apply for this position, please submit your resume online through the Current Opportunities page http://www.metrolinx.com/en/aboutus/careers/current_opportunities.aspx   We thank all applicants for their interest, however, only those selected for further consideration will be contacted.   AN EQUAL OPPORTUNITY EMPLOYER
  • Goshen, Indiana, StairSupplies is an organization of great people focused on excellence. Here, the industry’s best craftsmen are inventing the future of stair & railing products. We are currently seeking a Professional Engineer  to join our Engineering team. Position Requirements & Responsibilities : (These requirements are in addition to any and all StairSupplies employment requirements and policies.) Job Summary: The Professional Engineer will demonstrate structural engineering expertise, a high degree of attention to detail, and a willingness to explore and find optimal solutions to unique and often challenging design problems. He or she will be responsible for working in a multidisciplinary design team to produce construction documents. Responsibilities: Serve as a Professional Engineer on the design of residential and commercial stair projects. Pursue greater sphere of accreditation, with the goal of certifying products in all 50 states. Prepare, sign and seal, and submit engineering plans and drawings to a public authority for approval, or seal engineering work for public and private clients. Prepare on a to-order basis calculation packages where required. Communicate with clients or local code officials to address project-specific questions when required. Coordinate with R&D to specify, test, and validate new products and product revisions. Maintenance, standardization, and upkeep of all product testing data & documentation. Advise and assist in development of quality assurance measures related to product lifecycle stages. Ideal candidates would be open to being physically present for product testing and conduct site visits when needed. Required Skills: Bachelor's Degree in Mechanical Engineering or Civil Engineering with Structural emphasis required. Master's degree preferred. Professional Engineer (PE) Registration, with the ability to stamp projects in multiple states. 5+ years of relevant work experience. Building design experience using the International Building Code. Must have a high level of analytical skills. Work requires continual attention to detail with the ability to define problems, collect data, establish facts and draw valid conclusions.  Must be able to interact and communicate with clients at all levels. Must have knowledge of and experience with computer assisted engineering and design software, including CAD management systems.  Ability to read, analyze and interpret common scientific and technical reports or journals, financial reports and legal documents. Must possess an innovative mindset and be able to work in unconventional ways or on tasks that require creativity Must be adaptable and independent. Able to work with little direction and manage time accordingly. Desired Skills: Experience with FEA Analysis Familiarity with stair & railing building code Familiarity with Autodesk Inventor, and Autodesk Vault Licensure in the multiple states with priority given to: Indiana, California, Florida, New York, Texas, Colorado, Washington Experience developing & attaining evaluation reports for products & product systems Benefits & Incentives: Monthly Discretionary Bonus Paid Holidays Paid Time Off (PTO) 4% Matching 401K retirement savings plan Health, Dental, & Vision Insurance
  • Falls Church, Virginia, Position Background and Scope This position will lead of a small team to provide direct analytic support to regional decision makers within Navy Medicine. Each region has an independent team, but teams will coordinate with headquarters and across regions to ensure knowledge, learning, and best practices are shared across the organization. Analytic efforts may include modeling, statistical inference, machine learning, data visualization and dashboard development. Position Summary and Responsibilities TBE is seeking an analytics professional to lead a team supporting analytics efforts within Navy Medicine. Responsibilities include, but are not limited to: Work closely with customers, managers, and technical team to define program scope, goals, and deliverables Direct and work with a team to develop long term analysis products Direct and work with a team to respond to ad hoc requests for specific analysis (short term) Prepare and present project communications for customers and key stakeholders Provide leadership for multi-disciplinary teams in a collaborative environment Author technical reports and review team products for consistency and accuracy Qualifications This position requires the ability to obtain a DoD Security Clearance to the level of "Secret" Education and/or Experience Requires a B.S. degree in Industrial Engineering, Operations Research, Mathematics, Statistics, Economics, Data Science, Analytics, or related analytic field. Minimum fifteen (15) years of applicable professional experience, including minimum five (5) years in a supervisory position Superb communication skills with the ability to elicit goals, needs, and outcomes with leaders at all levels across different functions and organizations Highly Desirable Skills and Characteristics M.S. degree in Industrial Engineering, Operations Research, Mathematics, Statistics, Economics, Data Science, Analytics, or related analytic field Demonstrated experience leading analytic projects Demonstrated success in customer-facing roles with frequent stakeholder interactions at all levels 5+ years of direct experience applying operations research, statistics, or data science techniques to develop analysis products Solid foundational knowledge of analytic techniques (statistics, queueing theory, probability, mathematical optimization, machine learning, systems engineering, decision analysis, etc.) Proficiency in one or more programming languages commonly used in analytics (Python, R, Julia etc.) Advanced data visualization experience to clearly communicate relationships among complex data Familiarity with cloud environments (AWS, Azure) Familiarity with software development life cycles and principles Experience working within the Department of Defense Experience working within the Military Health System Citizenship Requirements Due to classified work at the facility and related access restrictions, successful applicants must maintain U.S. Citizenship to allow the person to hold a U.S. Government security clearance.
  • Washington, D.C., Two Tenure Track Positions for the Department of Decision Science, School of Business, The George Washington University The Department of Decision Sciences of The George Washington University's School of Business invites applications for two tenure track faculty positions, at the Assistant Professor level in the areas of Business Analytics and Operations Management, to begin as early as Fall 2021. The successful candidate will be expected to teach courses in operations management, optimization, machine learning, statistical modeling, conduct scholarly research leading to publications in top peer-reviewed journals and be actively involved in service to the university and the scholarly community. Qualifications:  Applicants must hold a PhD in management science / operations research, operations management, statistics, industrial engineering, computer science, or related interdisciplinary field by date of appointment. ABD applicants will be considered, but must complete all degree requirements for the PhD by date of appointment.  Applicants must also demonstrate the potential for outstanding scholarly research and excellence in teaching at both the undergraduate and graduate levels.  The City: GWU is located in the heart of Washington, DC.  The city is home to the Federal Government as well as a large variety of national and international institutions, such as federal agencies, the National Science Foundation, National Institutes of Health, the World Bank, the International Monetary Fund, the Smithsonian, etc. Application Procedure: Only complete applications will be considered. Review of applications will begin on March 29, 2021 and will continue until the position is filled. To apply, please complete an online faculty application at   { https://www.gwu.jobs/postings/81210 }   and submit a cover letter, an up-to-date curriculum vitae, a statement of research interest that includes objectives and aspirations in research and education, a statement of teaching interest that includes teaching experience and performance, and copies of representative publications.  Employment offers are contingent upon the satisfactory outcome of a background screening. Women and diverse candidates are strongly encouraged to apply.  For questions, please contact: Jade Abrams Administrative Manager, Department of Decision Sciences E-Mail:  jadej@gwu.edu   The university is an Equal Employment Opportunity/Affirmative Action employer that does not unlawfully discriminate in any of its programs or activities on the basis of race, color, religion, sex, national origin, age, disability, veteran status, sexual orientation, gender identity or expression, or on any other basis prohibited by applicable law. 


Log in to see this information

Either the content you're seeking doesn't exist or it requires proper authentication before viewing.

INFORMS Journal on Optimization Articles

Latest Discussions

There are no discussions to which you have access

Either the content you're seeking doesn't exist or it requires proper authentication before viewing.

Recent Shared Files

No Data Found

Either the content you're seeking doesn't exist or it requires proper authentication before viewing.


  • photo not available
    Gerhard Weber
    80 Points
  • Andre Cire
    Andre Cire
    32 Points
  • photo not available
    Tito Homem-de-Mello
    27 Points