Execution Quantitative Researcher

Department: TechnologyLocation: Chicago, ILDescriptionFind the edge. Build the algo. Win the execution. The mission is simple: deliver best-in-class execution — for our strategies and our customers'. You’ll study market microstructure, analyze execution performance, and build models that improve how orders are routed and filled — refining both our internal algorithms and collaborating with clients to enhance theirs.This is a high-ownership role in a rapidly growing execution business. You’ll work with large trading datasets and complex market behavior to identify opportunities that improve execution quality, while helping shape the research agenda and where we invest next. Working closely with traders, sales, engineers, and researchers, you’ll turn those insights into production improvements and see the results quickly.If you enjoy applying rigorous quantitative research to real market problems and want the autonomy to shape how a business executes – we want to talk to you.What You’ll DoResearch and model market microstructure and execution behaviorAnalyze transaction costs, slippage, and fill quality across strategies and venuesDevelop and refine execution algorithms — VWAP, TWAP, liquidity-seeking, and beyondBuild models to estimate market impact, fill probability, and optimal order placementPartner with engineers to move models into production trading systemsDesign Python and SQL workflows for analyzing large-scale trading datasetsIdentify new areas of opportunity and drive the research direction as the business growsWhat We’re Looking ForStrong quantitative background in statistics, mathematics, computer science, or a related fieldExperience working with large, complex datasetsProficiency in Python and SQLStrong analytical thinking and a bias toward solving real problems end-to-endAbility to communicate findings clearly and collaborate across trading, engineering, and research teamsExperience building dashboards or visualizations (Tableau or similar) is a plusNice to have:Experience working with financial or market dataFamiliarity with electronic trading or market microstructureBackground applying statistics or machine learning to real-world problemsWhy Join UsOur flat organizational structure promotes teamwork across the Firm and offers easy access to senior staff. While we work exceptionally well as a team in the office, our bonds are further strengthened through company events, activities and giving back. Volleyball, soccer, hockey, 5K runs, picnic, parties, and trivia nights provide friendly competition and build better relationships. By getting out of our usual environment and doing out-of-the-ordinary things together, we foster creativity and broaden our imaginations to accomplish new challenges.BenefitsHighly competitive salary & bonus opportunityGenerous paid time off and flexible scheduling100% coverage of medical, dental, vision, life, and disability benefits for single coverageGenerous Paid Parental LeaveRetirement Plans: 401K and Roth 401KProfit sharing planLong- and short-term disabilityAdditional Perks:Free breakfast and lunch from our in-house kitchen with rotating menus (including snacks!)On-site gym with a subsidized membershipFrequent company outingsOpportunity to give back to organizations that help individuals in need in the Chicagoland areaProfessional Development:In-house education team – classes and resources are offered for continuous learning opportunitiesMentorship Program through your first six months of employmentThe base compensation range for this role is approximately $100,000-$140,000 contingent on experience. WEX's total compensation model includes base salary and an annual discretionary bonus.