Jobs at Simpson Thacher & Bartlett LLP

Leads global client development for funds practices at an international law firm. Responsibilities include strategic pitches, proposals, client plans, market intelligence, event strategy, sponsorships, budgets, process improvements, CRM and database initiatives, and cross-functional collaboration. Advises partners and practice leaders on growth, positioning, and relationship development while supervising and mentoring CDE team members.

Performs staff-level accounting activities, including journal entries, general ledger analysis, balance sheet and bank reconciliations, disbursement processing, escrow accounting, online banking transactions, cash reporting, and monthly close activities. The role requires communication with accounting teams, accuracy, organization, and deadline management.

Supports capital projects across planning, design, procurement, construction, and closeout. Coordinates schedules, budgets, invoices, meetings, documentation, vendors, contractors, and cross-functional stakeholders. Tracks risks, issues, dependencies, action items, and project governance materials while assisting with reporting, data analysis, and executive presentations. Ensures projects comply with firm policies, procedures, and design standards.

Designs, deploys, and maintains secure enterprise network and cloud infrastructure. Manages Palo Alto, Cisco, and Fortinet firewalls, policies, VPNs, SD-WAN, Prisma Access, SASE, security zones, audits, and compliance. Identifies vulnerabilities, leads firewall migrations and upgrades, collaborates with IAM and service delivery teams, and provides technical guidance and troubleshooting support to junior engineers. Requires advanced network security expertise and 7+ years of experience.

Leads firm-wide pricing strategy, fee proposals, alternative fee arrangements, matter budgeting, financial modeling, profitability analysis, and pricing performance reporting. Advises partners and senior leadership, supports client negotiations and RFPs, manages a pricing team, oversees pricing tools and databases, and drives process improvements, technology adoption, training, and best-practice implementation across the firm.

Supports strategic client development and business growth for the firm’s Energy and Infrastructure Practice. Responsibilities include leading pitches, proposals, RFPs, credentials, directory submissions, market research, go-to-market initiatives, client materials, events, and cross-practice coordination. The role manages business development projects, maintains sector resources, supports partner meetings, and coaches junior team members while delivering high-quality work under tight deadlines.

Develops and supports pricing strategy through fee proposals, financial modeling, matter budgeting, variance analysis, reporting, and partner support. Maintains pricing databases and tools, improves workflows, and supports RFPs and client negotiations. Builds AI-enabled pricing workflows using Claude and Harvey, validates AI outputs, and promotes responsible adoption. Requires strong financial analysis, communication, process management, legal-services pricing knowledge, and cross-functional collaboration.

Leads cross-functional brand and communications initiatives from planning through implementation. The role coordinates teams, timelines, resources, risks, governance, campaigns, content, brand standards, tools, and process improvements. It prepares leadership updates, supports change management, strengthens operational effectiveness, and helps ensure consistent brand execution across a global law firm. The position requires strong project management, communication, organizational, stakeholder-influence, and presentation skills.

Lead the enterprise AI Security Program by designing and implementing security standards, controls, guardrails, governance, automation, and monitoring for LLMs, AI platforms, agents, gateways, and AI-enabled applications. Partner with application security, engineering, privacy, compliance, and operations teams to address threats such as prompt injection, jailbreaks, data exposure, excessive agency, and adversarial attacks. Provide technical leadership, threat modeling, security architecture guidance, and maturity reporting.

Analyzes conflicts of interest and new-business intake requests for a global law firm. The role researches prospective clients and matters, applies ethical and firm rules, prepares waivers, verifies party information, assesses risks, and coordinates with attorneys and staff to resolve conflicts accurately and efficiently.

Coordinates training, orientations, onboarding, meetings, events, and administrative operations for a legal Research and Insights department. The role develops training materials, promotes research resources, maintains intranet and document repositories, supports workflow improvements, and collaborates with attorneys, researchers, professional development staff, and administrative teams. It requires strong organization, communication, project management, digital technology, and confidentiality skills, with legal or professional services experience preferred.

Leads strategy, operations, transformation, technology, and talent management across a Legal Talent function. Responsibilities include strategic planning, process improvement, project and vendor management, budgeting, data reporting, executive communications, AI and technology transformation, recruiting, onboarding, training, job architecture, and change management. The role partners with senior leaders and cross-functional teams to improve efficiency, standardize processes, and drive continuous improvement in a complex professional services environment.

Manages staffing, utilization, workload allocation, performance management, professional development, recruiting, onboarding, and daily operations for litigation and corporate paralegal teams. Partners with attorneys, practice directors, human resources, and other stakeholders to balance workloads, improve workflows, coordinate reporting and budgets, and support team effectiveness. Leads process improvement and adoption of automation and AI tools while addressing performance, communication, training, and engagement needs.

Assists attorneys with private fund formation, fundraising, subscription documents, investor onboarding, fund closings, secondary transfers, side letters, AML/KYC reviews, and ongoing fund compliance. Drafts and reviews fund-related agreements, tracks investor documentation, coordinates with clients and investors, and compiles key fund records. Requires a J.D. from an ABA-accredited law school and admission to the local bar.

Designs, builds, deploys, and operationalizes enterprise generative AI solutions, including LLM applications, RAG architectures, autonomous agents, MCP servers, and AI integrations. Partners with stakeholders, engineering, infrastructure, security, and data teams to deliver secure, governed, scalable AI systems. Develops AI tools and workflows, optimizes data processes, provides architectural guidance, and supports high-impact business use cases.

Supports the Legal Talent Department through attorney review processes, onboarding, leave administration, relocations, immigration processing, flexible work arrangements, and personnel reporting. Coordinates with attorneys, partners, immigration counsel, Benefits, and Workday support teams while maintaining confidential records, tracking charts, and department databases. The role also assists with orientations, reporting improvements, inter-office communications, and related administrative activities.

Leads the architecture, development, and optimization of production-grade machine learning infrastructure on Azure. Designs scalable training and inference environments, implements MLOps practices, automates ML workflows, and establishes reusable deployment frameworks. Partners with data science, DevOps, and platform engineering teams to productionize models, strengthen security and observability, and ensure reliable, compliant systems. Mentors junior engineers and drives ML infrastructure strategy across multiple use cases.

Designs, builds, and operates full-stack software, infrastructure, and AI-powered legal technology systems. Responsibilities include developing applications and integrations, managing cloud infrastructure and CI/CD, implementing observability and reliability practices, contributing to AI/LLM solutions, establishing frontend design systems, and collaborating with attorneys, data scientists, IT, and other stakeholders.

Develops statistical, machine learning, deep learning, and NLP solutions for legal and administrative teams. Responsibilities include building regression and classification models, fine-tuning language models, creating RAG pipelines, designing AI workflows, analyzing structured and unstructured data, producing visual reports, and deploying reproducible production systems. The role collaborates with lawyers, business departments, and technical teams to advance the firm’s AI capabilities and deliver actionable insights.

Conduct qualitative and quantitative UX research for attorneys and clients across digital products. Lead recruitment, study design, data collection, analysis, and reporting; create personas, journey maps, service blueprints, and user flows; maintain research repositories; translate insights into business requirements; collaborate on AI product adoption and analyze usage data.