Peter is available for hire
Hire PeterPeter Tannenwald
Verified Expert in Engineering
Technology Consultant and Developer
Chicago, IL, United States
Toptal member since November 11, 2025
Bio
Peter is a tech consulting leader with deep experience in data, AI, and cloud transformation and outsourcing for growth-stage to Fortune 500 clients. He partners with retail, high-tech, life sciences, financial services, and private equity firms to solve complex business and tech challenges. Peter leads programs from assessment and business cases through strategy, implementation, operations, and cost optimization. His expertise also spans P&L, practice/sales leadership, and C-suite relations.
Portfolio
Accenture
Cloud, Cost Control, Data, Architecture, Strategy, Sales, Delivery, Hiring
West Monroe
Architecture, Cost Control, Cloud, Data
Amazon Web Services (AWS)
Architecture, Cloud, Cost Control, Consulting, Data, Software, Sales
Experience
- Consulting - 15 years
- Cloud - 12 years
- Data - 11 years
- Cost Analysis - 11 years
- Digital Solutions - 10 years
- Cost Control - 10 years
- Strategy - 10 years
- Value Creation - 10 years
Preferred Environment
Data, Cloud, Value Creation, Cost Control
The most amazing...
...thing I've done is lead data, AI, and digital strategy and business development and sales. I also opened Amazon Chicago and built the AWS cloud practice.
Work Experience
Senior Director – Strategy, Solutions, & Sales
2021 - 2024
Accenture
- Advised clients in solving their most challenging business problems by leveraging innovative data and AI solutions through data modernization, migration, and management.
- Led teams and worked with client business, innovation, and technology leaders to identify outcomes for data and AI-enabled solutions. GenAI strategy and solutions included advanced analytics, NLP, edge computing, and LLMs.
- Evaluated GenAI initiatives for a bank, including predictive analytics models for risk assessment, portfolio optimization, and customer support to enhance real-time decision-making, reduce risk exposure, and increase customer service.
- Evaluated GenAI initiatives for a retail client, including personalized product recommendations, demand forecasting algorithms for inventory management, and customer feedback to drive higher conversion rates and enhance customer engagement.
- Assessed GenAI initiatives for a retail client, including personalized product recommendations, demand forecasting, and sentiment analysis tools for customer feedback to drive conversion rates, streamline supply, and enhance customer engagement.
- Created data modernization and migration roadmaps for a bank and a retail client to reduce data management costs by 38% and 45%, respectively. Identified 24% and 44% better customer engagement and improved revenue by 11% and 17%, respectively.
- Identified over $300 million in cloud-enabled projects, resulting in 32% annual cost savings and $1+ billion in cash flow savings over ten years.
Technologies: Cloud, Cost Control, Data, Architecture, Strategy, Sales, Delivery, Hiring
Partner
2019 - 2020
West Monroe
- Created a cloud adoption and maturity assessment offering to evaluate client cloud initiatives on M&A due diligence, divestiture projects to increase agility, cost savings, and operational effectiveness, saving $39 million in client costs.
- Led teams and served as a subject-matter expert on outcome-driven client engagements to increase revenue, reduce costs, and transform thinking, operations, and capabilities.
- Sold, led, and provided hands-on delivery for projects, including IT-focused strategies, digital transformation programs, IT optimization, cloud strategies, business cases, application and data assessments, and cost optimization initiatives.
Technologies: Architecture, Cost Control, Cloud, Data
Senior Practice Leader
2015 - 2019
Amazon Web Services (AWS)
- Led sales, delivery, and hiring for the Midwest Professional Services Practice covering nine states. Launched Amazon's Midwest Professional Services Practice and helped open Amazon's Chicago Office.
- Leveraged AWS best practices to deliver 230 engagements to 105 customers. These efforts resulted in an optimized consumption of $395 million of AWS services.
- Partnered with clients to deliver outcome-driven programs, such as large-scale migration and digital transformation of eCommerce applications and cloud operating model, achieving 4x faster new feature adoption and $30 million in annual cost savings.
- Hired and developed an 80-person team, including eight practice leaders, to effectively engage enterprise customers and scale the practice in a high-growth market.
- Led the team that produced 105 reusable artifacts, including an AWS business case accelerator, big data, analytics, machine learning, and global IoT Proserve offerings, to help clients and internal teams accelerate and optimize the adoption of AWS.
Technologies: Architecture, Cloud, Cost Control, Consulting, Data, Software, Sales
Experience
AI-first Initiatives & Strategy
Created data modernization and migration roadmaps to enable a financial services firm and a retail client to reduce data management costs by 38% and 45%, respectively. I leveraged AI platforms to achieve 24% and 44% better customer engagement, driving revenue increases of 11% and 17%, respectively.
Education
1981 - 1985
Bachelor's Degree in Mathematics and Computer Science
University of Illinois at Urbana–Champaign - Urbana, IL, USA
Skills
Languages
Python
Other
Cost Control, Consulting, Sales, Hiring, Data, Cloud, Value Creation, Software, Digital Solutions, Cost Analysis, Systems, Solutioning, Architecture, Strategy, Delivery, Operations
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