Top Tech Jobs & Startup Jobs

Global Quantitative Researchers at Citadel leverage advanced statistical and quantitative techniques to drive investment strategies and optimize portfolios.

Quantitative Researchers at GQS leverage advanced statistical techniques and machine learning for investment strategies, portfolio optimization, and innovative research.

Develop and deploy advanced machine learning models across asset classes, focusing on deep learning, sequence/time-series modeling, NLP/LLMs, pre-training, fine-tuning, and reinforcement learning. Design and optimize models for performance, scalability, and robustness to model price formation, market behavior, and risk while collaborating with researchers, engineers, and traders.

The Manager of Customer Support will lead the team, manage escalated cases, drive operational excellence, and coach team members to improve customer outcomes.

Lead company-wide commission calculations, analytics, financial modeling, forecasting, budgeting, and accruals. Improve commission processes, logic, and reporting while partnering cross-functionally to implement compensation plans, educate Sales, identify trends, optimize performance, and support strategic decisions.

Own end-to-end data science projects: data ingestion, feature engineering, modeling, validation, deployment, monitoring, and retraining. Design experiments, troubleshoot models and data issues, collaborate with product and engineering, mentor junior scientists, and improve team practices and tooling.

Develop business intelligence and revenue reporting tools, automate Finance reporting processes, perform ad hoc and quantitative analyses, and translate complex data into actionable insights. The analyst will support company initiatives, present findings to technical and non-technical stakeholders, and provide decision-making guidance across the organization.

Own the full sales cycle for SMB merchants, converting inbound leads and generating outbound opportunities. Qualify prospects, conduct demos, close deals, provide consultative solutions, maintain accurate Salesforce forecasts, collaborate cross-functionally, and consistently achieve revenue targets.

Manage merchant onboarding from discovery through activation, ensuring sellers are properly scoped, configured, trained, and launched on Square’s platform. Coordinate with Sales, Account Management, Customer Success, Engineering, and Product to resolve obstacles and accelerate timelines. Lead multi-merchant projects, create training materials, perform data entry and migration, configure accounts and menus, and conduct remote and onsite consultations, training, and hardware installations.

Own the complete outbound sales cycle for mid-market merchants, including prospecting, pipeline development, discovery, product demonstrations, negotiations, and closing. Develop tailored multi-product solutions across Square’s ecosystem, acquire net-new customers, collaborate with business development and cross-functional teams, maintain accurate Salesforce forecasting, and consistently achieve revenue targets.

Design, build, and maintain scalable Android applications using Kotlin and modern Android frameworks. Lead end-to-end feature delivery, including API design, data modeling, backend integration, testing, and deployment. Collaborate with product, design, and engineering teams to deliver high-quality mobile experiences. Improve code quality, architecture, observability, performance, and incident resolution while safely integrating AI/ML-enabled capabilities. Mentor engineers and drive architectural improvements across Android applications.

Own Expedia’s strategy and roadmap for AI-powered proactive traveler resolution across journeys, communications, decision experiences, servicing operations, AI agents, and platform capabilities. Lead zero-to-one product strategy, cross-functional execution, KPI measurement, responsible AI governance, architecture decisions, and senior leadership communication. Partner with engineering, design, data science, and operations to create scalable, trusted, increasingly autonomous traveler resolution experiences.

Lead development of scalable econometric and causal-inference methods (DiD, RDD, IV, synthetic controls, panel data) to measure long-term marketplace impact. Integrate causal insights into production ML systems, influence product strategy, present findings to executives, and mentor data scientists and economists.

Lead financial processes, reporting, budgeting, forecasting, and risk management for internal firm services. Provide strategic financial advice, validate outcomes with stakeholders, monitor trends, and optimize performance. Direct and coach teams through complex scenarios, enforce professional and independence standards, and communicate clear financial narratives to support business decisions and improve financial operations.

Performs deal valuation engagements for mergers, acquisitions, and other financial transactions. Supports client projects, analyzes business entities and intangible assets, applies valuation methodologies, builds financial models, and assesses derivatives and impairment testing. Develops client relationships, expands technical knowledge, adapts to changing project requirements, and contributes to team and engagement quality.

Develop and customize insurance applications on the Guidewire platform (PolicyCenter, BillingCenter, ClaimCenter). Design, code, test solutions using OOP and Guidewire technologies, manage system configurations, mentor junior staff, build client relationships, and apply firm methodologies to deliver high-quality insurance technology solutions.

Develop and enhance payment products and transaction systems using Java and Kotlin. Design and build microservice components, evaluate emerging technologies, and recommend architectural improvements. Mentor less-experienced engineers on software practices and coding standards. The role focuses on highly available, distributed, high-concurrency risk and payment platforms, including fraud detection and risk decisioning infrastructure.

Advise on payments and financial-services regulatory matters across the Americas, including licensing, money transmission, payment flows, product launches, filings, and regulatory developments. Partner with legal, compliance, risk, product, strategy, and commercial teams; translate complex requirements into practical guidance; manage external counsel; support government-relations work; and contribute to regulatory projects across the US, Canada, Mexico, and Brazil.

Advise on payments and financial-services regulations across the Americas, including licensing, money transmission, product launches, regulatory filings, and payment flows. Research regulatory developments, provide practical guidance to cross-functional teams, manage external counsel, support regulator and government-relations work, and help improve legal workflows using AI and other tools. The role focuses primarily on US regulation, with opportunities involving Canada, Mexico, and Brazil.

Manages Buick and GMC dealership relationships across an assigned territory. Responsibilities include consulting dealers to achieve sales goals, analyzing sales and market data, supporting marketing and product launches, monitoring training and compliance, managing vehicle and parts inventory, improving customer satisfaction, resolving customer issues, and increasing vehicle and accessory sales. The role is field-based, requires frequent travel, dealership engagement, regular vehicle operation, and relocation or residence within the approved territory.

Lead and grow a team executing display integration across concept, sourcing, engineering, validation, launch, and production support. Drive cross-functional alignment on architecture, packaging, interfaces, supplier accountability, DFMEA/PFMEA, issue resolution, cost optimization, and launch readiness across multiple vehicle platforms and display configurations.

Design and develop cellular software for a Linux-based vehicle communication system, collaborating with hardware teams to ensure reliability and performance.

Design and build scalable, reliable, observable, and well-tested backend and distributed systems. Work in AI-assisted development workflows by decomposing problems, validating AI-generated outputs, and using tools such as Claude and code assistants. Contribute to architecture, data modeling, APIs, service boundaries, documentation, and technical direction while mentoring peers and collaborating across Product, UX, and Engineering.

Design, build, and maintain scalable backend and distributed systems while operating in AI-augmented workflows. Validate AI-generated outputs, contribute to architecture and system evolution, produce technical documentation and prompts, mentor peers, and collaborate with Product, UX, and Engineering teams to ensure reliability, observability, and engineering quality.

Leads advanced cyber threat intelligence analysis, including threat actor, malware, campaign, and geopolitical assessments. Develops strategic intelligence objectives, analytical models, methodologies, and tools; produces executive briefings and reports; cultivates intelligence-sharing networks with internal and external partners; and provides cybersecurity thought leadership. Acts as a subject matter expert, mentors analysts, supports critical incidents, and anticipates emerging threats to improve organizational security posture.

Designs, builds, and supports DAM/MAM content supply chain workflows, API integrations, metadata ETL processes, automations, and AI/ML-enabled operational solutions. The role translates stakeholder requirements into scalable media workflows spanning ingest, enrichment, QC, transcoding, delivery, and archival. It partners with engineering, product, operations, clients, and vendors; supports integrations and platform upgrades; creates documentation and training; and troubleshoots workflow issues in a deadline-driven environment.

Manages enterprise compliance initiatives focused on data governance, regulatory change, control implementation, policy adherence, and operational processes. Partners with legal, technology, product, compliance, and business stakeholders to translate requirements into scalable controls. Maintains governance frameworks, procedures, metrics, dashboards, and reporting; supports audits, assessments, training, and change management. Facilitates cross-functional work, manages risks and vendors, researches regulations, and contributes to strategic compliance projects and process improvements.