Simpson Thacher & Bartlett LLP

Network Engineer

• Fortify Simpson Thacher’s network and security infrastructure
• Architect, design, deploy, and maintain secure network solutions across on-premises and cloud environments
• Manage firewall rules and policies, optimize rule bases, and establish security zones
• Conduct system audits to assess security risks and regulatory compliance
• Identify network vulnerabilities and recommend security enhancements
• Collaborate with IAM and Service Delivery teams on firewall management and operational strategies
• Provide technical support and guidance on network security issues
• Monitor emerging security threats and firewall technologies
• Lead firewall migration projects and oversee hardware/software upgrades
• Provide technical guidance, training, and troubleshooting support to junior network and security engineers
• Perform other duties as needed

Network Engineer III

Full-stack Engineer

• Design, develop, and maintain custom software solutions supporting Knowledge & Innovation initiatives, including AI-powered tools, internal platforms, and integrations with existing Firm systems
• Contribute to architectural decisions with the Director of Engineering, balancing speed, reliability, and maintainability
• Build and extend integrations across SaaS platforms, internal systems, data sources, and AI/LLM services used in legal workflows
• Develop polished frontend experiences, including component libraries and design system foundations
• Own and evolve CI/CD pipelines, deployment automation, infrastructure-as-code, and development environment tooling
• Establish monitoring, logging, alerting, and other observability practices for production systems
• Partner with IT on security protocols, cloud resources, and deployment targets
• Ensure systems are reliable, secure, and aligned with Firmwide technology standards
• Contribute to AI-powered retrieval-augmented systems, document analysis platforms, search tools, and workflow automation
• Translate complex legal and business requirements into practical software with attorneys, knowledge management professionals, data scientists, and practice solutions teams
• Demo tools, gather feedback, and help legal staff adopt solutions
• Evaluate and prototype tools, frameworks, and approaches; share successful experiments with the team
• Help establish the engineering culture and ways of working for a new function

Senior Software Engineer

AI Engineer

• Design, develop, and deploy enterprise Generative AI solutions using commercial and open-source foundation models
• Build and maintain AI agents, agent orchestration frameworks, and multi-agent systems to automate complex business processes
• Develop and implement Retrieval-Augmented Generation (RAG) architectures using enterprise knowledge repositories and structured/unstructured data sources
• Design and develop custom AI tools, hooks, skills, and integrations to extend agent capabilities and improve business outcomes
• Build and maintain MCP servers and related infrastructure to securely integrate AI systems with enterprise applications and services
• Develop AI-powered applications using Python, APIs, and cloud-native services
• Monitor, optimize, and scale data workflows to improve performance and cost-efficiency
• Develop best practices for data engineering processes, documentation, and governance
• Partner with infrastructure and security teams to implement scalable, secure, and compliant AI solutions
• Collaborate with stakeholders to identify, prioritize, and deliver high-impact AI use cases
• Provide technical guidance on AI architecture, implementation patterns, and emerging industry capabilities
• Partner with business stakeholders, software engineers, architects, and data teams to translate AI opportunities into production-ready solutions

Senior AI Engineer

Security Engineer

• Lead the implementation, maturation, and continuous improvement of the enterprise AI Security Program
• Develop and operationalize AI security standards, control frameworks, secure design patterns, implementation baselines, and governance processes
• Serve as lead security engineer for enterprise AI platforms, including Claude, AI coding assistants, AI gateways, Agents, MCP-based integrations, and emerging AI technologies
• Design, implement, and improve security controls covering identity and access management, authorization, tenant security, encryption, logging, monitoring, and data protection
• Develop and operationalize AI guardrails against prompt injection, jailbreaks, unauthorized access, excessive agency, sensitive data exposure, model misuse, and adversarial attacks
• Develop security automation, governance automation, and policy-as-code capabilities
• Contribute to security architecture reviews and threat modeling for AI-enabled applications, platforms, agents, workflows, and integrations
• Establish secure development standards for AI-enabled software development
• Support security operations teams in monitoring and responding to AI security threats and emerging adversarial techniques
• Partner with Data Protection, Privacy, Compliance, and Governance teams on safeguards for secure data use within AI platforms
• Serve as the firm’s subject matter expert on AI security, emerging threats, adversarial AI risks, and industry best practices
• Provide technical security engineering leadership for AI security innovation, proofs of concept, and future-state capabilities
• Define and report KPIs measuring security effectiveness and maturity
• Stay current on emerging threats, technologies, and industry trends
• Build cross-functional partnerships across global teams and external stakeholders

Senior Security Engineer, AI Security

Data Scientist

• Deliver data-driven insights to Firm leadership, legal practices, the Knowledge Department and administrative functions
• Support legal teams and operational staff in using data to improve decision-making and the efficiency and effectiveness of client representations
• Collaborate with Finance, Talent, Business Development, IT and other functional departments to analyze data and develop solutions
• Develop regression and classification models using established and emerging data science methodologies
• Chain, fine-tune and deploy pre-trained language models for NLP tasks including text classification, named entity recognition, summarization, clause and document generation, and question-answer exchanges
• Design and deploy document segmentation and embedding approaches for information retrieval and retrieval augmented generation
• Conduct advanced quantitative research using machine learning and natural language processing techniques
• Configure practice-specific AI workflows and language technologies, including complex pipelines, prompt engineering, prompt chaining and text operations
• Design and deploy visual reports and user interfaces that present quantitative insights to non-technical business professionals
• Monitor advancements in LLMs, NLP, deep learning and machine learning and incorporate appropriate techniques into production models
• Document development processes, codebase and best practices to support knowledge sharing and reproducibility
• Partner with technical resources to refine data pipelines for recurring analyses and data-driven solutions
• Handle projects requested by the CKIO and other executive staff

User Researcher

• Work closely with Practice Solutions Managers to drive a consistent and positive user experience for attorneys and clients across applications and digital solutions
• Understand attorney behaviors and workflows to provide actionable insights for strategic decisions and product or solution implementation
• Plan and conduct qualitative and quantitative user research, including interviews, contextual inquiry, surveys and usability testing
• Drive user research through recruitment, study design, data collection, analysis and reporting
• Create personas, journey maps, service blueprints, user flows and other design artifacts
• Establish and maintain a centralized repository of reusable research data, insights and artifacts
• Translate research findings into business requirements with Practice Solutions Managers
• Collaborate with Data & Analytics to ideate, validate, develop, test and improve user interactions and adoption of AI products and solutions
• Support collection and analysis of product usage data
• Support user adoption of new and existing products and solutions

Senior UX Researcher

Communications

• Develop and execute communications and visibility strategies highlighting Firm developments, capabilities, transactions and litigation victories
• Identify and evaluate opportunities to elevate the profile of Firm practices and partners through media engagement and thought leadership campaigns
• Prepare messaging and background materials
• Develop and maintain relationships with key media outlets and contacts
• Facilitate cultivation of media relationships for priority partners
• Develop strategy and execution for contributed content and digital channels, including bylined articles, website updates and LinkedIn content
• Support Firm positioning through awards and market intelligence
• Assist in awards and survey strategy and preparation
• Monitor industry media and newswires and provide competitive intelligence on peer-firm activity
• Support Communications and Client Development and Engagement Department initiatives and operations
• Develop marketing and promotional materials
• Mentor junior team members
• Contribute to broader Firm projects, policies and processes

Senior Manager, Communications

Client Coordinator

• Collaborate with the Litigation CDE team, broader CDE team, Litigation partners, and select professional staff across the Firm in implementing CDE team strategies and requests
• Distribute Firm memoranda and maintain and communicate professional and community services and related client alerts
• Maintain website content, Partner biographies, and other Client Development and communications materials across multiple channels
• Organize event tracking and follow-up for the Litigation Department
• Assist with directory submissions and survey responses for legal and business directories and publications
• Support development and maintenance of promotional marketing materials for client development initiatives
• Prepare and maintain brochures, practice area descriptions, rankings and quotes, advertising, posters, flyers, and other promotional materials
• Assist with distribution of marketing materials and Firm communications, including event invitations, ranking submissions, presentation notifications, press releases, summaries, and web-related content
• Manage data for the Firm’s CRM system
• Provide competitive intelligence reports and analysis and conduct additional research through database searches, industry resources, and networking
• Support practice-specific daily docket-tracking efforts
• Assist with Firm-sponsored events and presentations
• Collaborate on draft pitches, proposal materials, and presentations
• Work with stakeholders in other departments and offices as needed
• Support Client Development projects and other Firm initiatives
• Perform additional duties as needed

Coordinator – Client Development – Litigation

• Serve as the primary product owner and business lead for assigned enterprise AI platforms, responsible for strategy, roadmap development, release management, governance, adoption and overall platform success.
• Maintain subject matter expertise in assigned platforms, configurations, integrations, workflows and best practices.
• Evaluate, test and deploy new platform capabilities while coordinating governance, operational, training and adoption activities.
• Partner with Information Technology, Information Security, Information Governance, the Office of the General Counsel and other stakeholders on risk, security, compliance and confidentiality considerations.
• Manage strategic vendor relationships, including roadmap discussions, service reviews, issue escalation, feature requests and renewal planning.
• Coordinate with project managers, data scientists, software developers, data engineers, knowledge management lawyers and other teams to deliver scalable solutions.
• Gather user feedback, prioritize enhancements and improve platform value and user experience.
• Drive AI enablement and adoption through communications, onboarding, training, office hours, practical guidance and change-management initiatives.
• Identify high-value legal and business use cases and translate them into practical AI-enabled workflows and solutions.
• Track and analyze adoption, engagement, utilization, user satisfaction, business impact, platform value and ROI metrics.
• Prepare executive-level updates and recommendations on product performance, roadmap decisions, vendor developments, governance, adoption and investment priorities.
• Monitor generative AI, natural language processing, information retrieval and legal technology developments.
• Provide functional escalation support for complex product questions and issues.
• Handle projects on request under the direction of executive leadership.

AI Platform Manager

Artificial Intelligence

• Lead the hands-on design, development, and deployment of AI workflows for the M&A practice
• Fine-tune models on M&A knowledge and build reusable workflows
• Use Harvey, Legora, DeepJudge, Claude Cowork, and Claude Code to build, test, refine, and ship production-quality AI solutions
• Collaborate with Engineering, Data Science, KM Lawyers, Practice Solutions, and M&A leadership
• Develop strategies that drive sustained AI adoption within the M&A practice
• Identify high-impact AI use cases across deal screening, due diligence, signing, and closing
• Test and evaluate workflows against legal first principles; refine prompts and workflow logic
• Build datasets, test sets, and evaluation frameworks for proofs of concept, pilots, and ongoing development
• Govern AI assets including prompts, prompt libraries, workflows, vaults, and document collections
• Design and deliver AI training, workshops, and best-practice resources for M&A lawyers
• Advise on confidentiality, privilege, data privacy, output reliability, and professional responsibility
• Share successful use cases and best practices across practice groups
• Evaluate new AI technologies through demonstrations, proofs of concept, and pilots
• Monitor AI, legal technology, and M&A developments to identify process-improvement opportunities

Senior Artificial Intelligence Lawyer – M&A

Infrastructure Engineer

• Lead the architecture and implementation of production-grade ML infrastructure using Azure Machine Learning, AKS, Azure Data Lake, Azure Databricks, and related services
• Design scalable training and inference environments for deep learning and traditional ML workloads, optimizing performance and cost
• Define and implement MLOps best practices, including versioning, CI/CD for ML pipelines, monitoring, and model governance
• Automate end-to-end ML workflows using MLFlow, Azure ML Pipelines, or Kubeflow
• Build reusable templates and frameworks to standardize ML deployment across teams
• Collaborate with data scientists to productionize models and guide infrastructure, deployment strategies, and performance optimization
• Partner with DevOps and platform engineering teams to align infrastructure with broader cloud strategies and compliance standards
• Mentor junior ML and platform engineers
• Implement enterprise-grade security and compliance controls using Azure Active Directory, RBAC, and data encryption strategies
• Integrate observability tooling such as Azure Monitor, Prometheus, and Grafana
• Ensure ML systems are highly available, reliable, and scalable for production workloads

Senior Azure ML Infrastructure Engineer

Solutions Engineer

• Facilitate exploratory meetings and user research with internal stakeholders, attorneys, clients, and SMEs
• Gather and analyze quantitative and qualitative data from user interviews, usage analytics, market research, industry reports, and other sources
• Advise practice leadership on transformation opportunities
• Translate strategic goals into actionable business capabilities, roadmaps, and detailed plans
• Design and develop scalable solutions using AI capabilities to streamline processes, reduce complexity, and improve efficiency
• Manage stakeholder expectations and provide updates throughout project lifecycles
• Define measurement, ROI, and KPIs and ensure initiatives capture desired business value
• Act as accountable leader and single point of contact across functions and practices
• Identify and validate pain points and map them to viable AI-driven use cases
• Identify, evaluate, and advocate for innovative AI-based legal technology solutions
• Assist practice groups in adopting AI-enabled workflows through outreach and hands-on support
• Support attorneys with prompt design, refinement, and execution tailored to practice-specific tasks
• Prepare and deliver technology presentations and trainings on practical AI uses
• Drive cross-department collaboration to resolve divergent goals and implement viable solutions
• Communicate solution strategy and progress clearly to stakeholders
• Perform other responsibilities as assigned

Practice Solutions Manager

Operator

• Create and revise legal documents to Firm’s specifications using the Firm’s latest software and version of MS Office
• Produce financial statements, flow charts, presentations, letters, and other documents, including cross references, Tables of Contents, Tables of Authorities, defined terms, and indexing
• Scan and format documents; convert documents between software packages; produce mail merge documents and fillable PDF forms; prepare Change Pro comparisons
• Troubleshoot document issues and recover/restore corrupted document files
• Proofread work for quality and correct formatting
• Answer incoming calls to Word Support and assist users with software applications
• Provide document support using remote access and enter iSupport calls into the software ticketing system
• Coordinate and communicate with the Supervisor-Word Processing regarding workflow and other issues
• Maintain an accurate diary log of all work performed
• Provide front desk coverage during the Supervisor’s absence when necessary
• Perform other duties as assigned

Word Processing Operator

Recruitment

• Support Talent Acquisition efforts by maintaining communication with hiring managers and candidates throughout the end-to-end recruiting process
• Schedule and coordinate candidate interviews, including in-person and virtual interviews
• Facilitate onsite interviews as necessary
• Distribute interview confirmations and feedback requests using Outlook and Workday Recruiting
• Prepare offer letters and onboarding paperwork for new hires
• Liaise with the Workday Support Group and Background Check vendor regarding new hires
• Provide Talent Acquisition and HR Business Partner teams with progress reports on interview slates and coordination efforts
• Assist in recruiting projects across the year and partner across Talent Acquisition and HR to deliver business needs
• Assist with ad hoc projects and perform other assigned duties

Talent Acquisition Assistant

Paralegal

• Coordinate work with department members and collaborate with administrative departments to support attorneys with day-to-day case management
• Create and revise legal documents using the Firm’s specifications, latest software, and MS Office tools
• Perform research using electronic research tools and legal reference materials
• Organize and coordinate closing and pre-closing documents, e-binders, signature packets, indexing, cross-referencing, page checks, internet research, SEC searches, proofreading, and definitions checks
• Maintain databases to ensure data can be accessed, edited, researched, and accurately reported
• Maintain an accurate diary log of work performed
• Scan and convert documents to PDF, split mail merge documents, create closing sets, and prepare Litera/redline document comparisons
• Coordinate document printing and courier deliveries, including FedEx and UPS; perform internal or hand deliveries when required
• Run machine translations
• Combine side letters and other documents in Word and PDF
• Perform notary duties
• Provide front desk coverage, convey information to requestors, direct callers, and coordinate work requests
• Work overtime or a flexible schedule as required to meet deadlines and provide department coverage
• Perform other assigned duties