Client Testimonials

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AI DevOps & Infrastructure
AWS Migration

Rebar: Scalable AWS infrastructure and cost savings for GPU-intensive AI workloads

"Working with Tech 42 was a strong partnership from start to finish. The team helped us design and implement a scalable AWS ECS-based infrastructure tailored for our GPU-intensive AI workloads, establishing a solid foundation for auto-scaling, improved cost visibility, and greater flexibility in how we deploy and evolve our services. The Terraform-based infrastructure was well-structured, modular, and easy to extend, allowing us to add new services efficiently and validate scaling behavior as part of our platform’s ongoing evolution.

Beyond the technical delivery, communication was excellent throughout the engagement. The Tech 42 team was highly responsive, easy to collaborate with, and proactive in walking us through architectural trade-offs, constraints, and future considerations. The solution performs reliably, supports our current scaling needs, and provides a strong baseline for future optimization and enhancements. We would be happy to work with Tech 42 again and recommend them as a trusted partner for cloud infrastructure and AI platform initiatives."

William Shabecoff

CTO

AI Agent

RealWork: AI agent Proof-of-Concept with voice capabilities

"Tech 42 has been a strong technical partner for RealWork as we advanced multiple AI capabilities toward production readiness. During Phase II, their team helped us refine our AI-powered story generation workflows by improving prompt strategy, strengthening backend architecture, and addressing real-world data challenges to ensure more consistent, reliable outputs.

In addition to the core scope, Tech 42 also delivered a brand voice generation system that leverages website content and customer reviews to produce tone-aligned, high-quality outputs. This capability was particularly valuable to our team, and we were very pleased with the quality and usefulness of the brand voice results.

Throughout the engagement, Tech 42 worked closely with us, introducing durable storage, improving API handling, and providing thoughtful guidance as requirements evolved. Communication was clear, turnaround times were fast, and the collaboration felt like a true partnership. The work delivered gives us a strong foundation to continue scaling our AI features, and we look forward to working together again".

Travis Bernard

Principal Software Engineer

AI DevOps & Infrastructure

Actuate: GDPR-compliant AWS infrastructure

“Partnering with Tech 42 to build our European AWS infrastructure was a seamless and productive experience. Their team helped us replicate our U.S.-based system in the EU region to meet GDPR requirements while maintaining performance and reliability. The Tech 42 engineers demonstrated deep technical expertise and flexibility, helping us uncover and parameterize gaps in our own stack that we hadn’t fully documented. Their collaboration, responsiveness, and attention to detail made it possible to bring our European deployment online successfully and on schedule. We’re now positioned to pilot customers in Europe with confidence, thanks to the strong foundation they helped us build."

Jacob Weiss

Vice President of Engineering

AI DevOps & Infrastructure

OpenCall: AWS scalable infrastructure for real-time TTS

"Working with the Tech 42 team on our Sesame CSM TTS project was a great experience. They helped us stand up a secure, containerized version of the model and deploy it into our AWS environment using ECS, enabling real-time TTS performance testing in conditions that closely match production. Their guidance in setting up the infrastructure, including load balancing, autoscaling, monitoring, and model integration, made it easy for our team to evaluate latency, scalability, and voice quality in a realistic workflow. We appreciated how responsive and collaborative the team was throughout the engagement, and the clear documentation and knowledge transfer have set us up well for the next phase of improvements".

Oliver Silverstein

Founder & CEO

AI DevOps & Infrastructure
AI Agent

Nodus: AI agent using custom, secure MCP server on scalable infrastructure

“Our experience working with Tech 42 was excellent. Their team helped us design and implement a secure MCP (Model Context Protocol) server environment using a Docker-in-Docker approach that enables safe, isolated Python code execution for data analysis. They delivered a fully containerized solution pushed to our ECR repository and provided clear guidance and support during integration with our existing agent architecture. The collaboration was smooth, communication was consistent, and their technical expertise allowed us to achieve our goal quickly and confidently. We look forward to working with Tech 42 in the new year as we expand our AI workflows.”

Daniel Sanchez

Director of Engineering

AI Agent

My Legacy: LangGraph-based production AI agent

“Working with Tech 42 on our AI production agent deployment was a great experience. The team was highly responsive, flexible, and easy to collaborate with, and they consistently delivered high-quality work on time. They helped us build a secure and scalable AWS environment to support our LangGraph-based agent, Bedrock integrations, and observability tools, and explained everything clearly so our team could confidently take it forward. We are very happy with the results and look forward to continue expanding our AI capabilities.”

Sree Chintala

Founder and CEO

Document Processing

Bild: AI-powered document analysis on Bedrock Data Automation

“Working with Tech 42 on our AI-powered document analysis solution has been an outstanding experience. The team brought deep technical expertise and clear structure to the engagement—from defining our objectives to implementing an end to end document processing pipeline based on Bedrock Data Automation capable of extracting text from a variety of file formats and automating ingestion into OpenSearch. Communication was excellent throughout—highly responsive, proactive, and transparent. We especially appreciated the flexibility to pivot and refine goals midstream while still meeting all milestones and maintaining exceptional quality. The collaboration has set a strong foundation for our continued work together as we scale this capability across our platform.”

Zach Vazhekatt

Co-founder and CTO

AI Agent

Churnkey: AI agent architecture, cost, and performance optimization

“Working with Tech 42 has been an excellent experience. Their team brought deep expertise to help us assess our AWS infrastructure and explore how we can leverage our unique behavioral data with machine learning and AI. The engagement gave us clear, actionable recommendations on modernizing our architecture, optimizing costs, and identifying high-impact opportunities like payment failure prediction and offer optimization.

The Tech 42 team exceeded our expectations with clear communication and always responsive to questions. We also valued their ability to point us toward the right AI approaches and explain complex concepts in a way that helped our team think strategically.

Overall, this project provided exactly what we needed which is clarity on where to focus next and a roadmap for evolving Churnkey’s platform with AI. We look forward to exploring future phases together.”

Scott Hurff

Founder & Chief Product Officer

AI DevOps & Infrastructure
AWS Migration

OpenTug: ECS scaling optimization for zero-downtime traffic redirection

“Tech 42’s engagement helped us successfully address critical scaling challenges on our platform. Their team implemented a FIFO queue scaling policy for our ECS workloads and designed a blue-green deployment strategy for zero-downtime traffic redirection. While the blue-green approach ultimately proved incompatible with our application, the Tech 42 team showed exceptional adaptability by quickly identifying and resolving the issues, and still delivering all project objectives on schedule.

Communication was consistently clear and professional and their expertise in ECS scaling optimization and health check configuration has meaningfully strengthened our AWS operations.”

Luciano de la Iglesia

Co-founder and CTO

AWS Migration
LLM Fine Tuning

HealthCorum: Hugging Face to AWS SageMaker migration with LLM fine-tuning

“Working with Tech 42 has been a great experience. The team helped us successfully transition from our Hugging Face setup to an AWS SageMaker environment, enabling us to fine-tune and deploy our models within our own infrastructure. This not only gave us better control but also set us up for future scalability.

The Tech 42 team went above and beyond expectations - delivering a training script and process that streamlined our workflows, and providing excellent support whenever we had questions. Communication was clear and responsive, and we always felt supported throughout the project.

Overall, we are very satisfied with the results and the expertise the team brought to the table. We look forward to continuing our partnership with Tech 42 in future phases.”

Murat Alpman

Chief Innovation Officer

AI DevOps & Infrastructure
AWS Migration

Goodcall: Conversation data and semantic search pipelines on AWS

“The Tech 42 team has been instrumental in accelerating our enterprise voice AI initiatives at Goodwill. Their expertise in building robust AWS-based pipelines for conversation data and semantic search helped us turn hundreds of thousands of call recordings into actionable insights. We appreciated their agility and breadth of AI/ML knowledge especially as the scope evolved and their proactive approach ensured our goals were met without losing sight of user needs. This project wouldn’t be where it is today without Tech 42’s support."

Bob Summers

Founder and CEO

Document Processing

GLS Solutions: AI workflow for document classification and data extraction

"Tech 42 played a pivotal role in helping us develop a scalable AI workflow for document classification and data extraction. Their early prototypes and thoughtful knowledge transfer provided a solid foundation for our implementation, accelerating our journey to production. The team was collaborative, adaptable, and highly responsive throughout. We look forward to building on this partnership in future phases."

Gabriel Rinaldi

Chief Digital Officer

AWS Migration

FuseBase: AWS migration with SharePoint data pipeline

“Working with Tech 42 was a seamless experience from start to finish. Tech 42 team demonstrated exceptional technical expertise and communication throughout the project, building a robust SharePoint data pipeline to feed our new data lake. The team was proactive, responsive, and always attentive to our needs — addressing feedback quickly and ensuring smooth collaboration through shared Slack channels and regular check-ins. The project exceeded expectations in quality and delivery, providing a solid foundation for future integrations. We look forward to continuing our partnership with Tech 42 as we expand our data connectivity capabilities.”

Denis Kibalko

CTO

AI DevOps & Infrastructure

Trieve: AI DevOps support

"The Tech 42 team's deep understanding only motivated us to work harder. From kickoff to closing, the engagement was consistently high-energy and creative. The quality of the work produced reflects the excellent collaboration, knowledge, and care the Tech 42 team brings to the table. The engineering talent is not merely 'technical.' The solutions we engineered were tailored to our business logic and mindful of our current and future customers' expected ergonomics."

Fede Torres

COO

AI Agent
LLM Fine Tuning

ICM Hub: AI agent and model fine-tuning

"Tech 42 was a great partner to work with. They demonstrated domain expertise and took ownership to help us progress on our timeline. We would not hesitate to work with Tech 42 again. Highly recommended."

Alex Tange

Co-Founder and CEO

Document Processing

RentSecurely: AI-powered document review system

"Tech 42 was an absolute pleasure to work with. They handled all interactions with the AWS team to help us access the appropriate POC programs and incentives, collaborated effectively with our internal tech team, and absolutely knocked the POC out of the park. We are now in the process of fully implementing the AI document review system they built for us, and we anticipate a 50% time savings for our customer service staff. This will allow them to focus on more critical and strategic tasks, enabling us to better serve our customers and scale to meet new business needs more quickly."

Fred White

Co-Founder

LLM Fine Tuning

TubeFilter: LLM fine-tuning in Amazon Bedrock

"Partnering with Tech 42 to fine-tune our Large Language Model and leveraging Amazon Bedrock has been transformative for our business. The customized AI solution they developed has dramatically streamlined our analysis process, saving us countless hours of effort. Tech 42's expertise in AI optimization and cloud integration was crucial in delivering a solution that perfectly fits our needs and significantly boosts our efficiency."

Joshua Cohen

Founder and CEO

RAG & Embedding

Printpal: AI-powered knowledge base

"Working with Tech 42 on our knowledge base project has been a seamless experience. Their expertise in RAG applications and LLMs helped us create a proof of concept that many of our customers have been requesting. Their professionalism and commitment to understanding our business needs made the collaboration both productive and enjoyable."

Peter Lebiedzinski

Founder and CEO

AI DevOps & Infrastructure

XTrace: Serverless API transition to GPU-enabled ECS infrastructure

"Tech 42 successfully executed a seamless migration of our serverless API to a GPU-enabled ECS infrastructure while preserving our complex encryption workflows. This transition significantly enhanced our system's scalability and reduced operational latency. Since implementation, the system has demonstrated exceptional stability with zero downtime incidents. This reliable performance has freed our engineering team to concentrate on core business initiatives rather than infrastructure management.

We are highly satisfied with Tech 42's technical expertise and project execution. Based on this positive experience, we would confidently engage Tech 42 for future technology partnerships."

Liwen Ouyang

Co-founder

AWS Migration

Tailshift: AWS migration assessment

“Tech 42’s AWS assessment helped us gain a clear understanding of how to scale our generative AI platform more efficiently. Their team conducted a thorough evaluation of our summarization and policy-claim matching workflows and presented a well-structured AWS-native architecture, complete with performance benchmarks and cost modeling.While we have decided to hold off on full migration until we reach 10x our current scale to maximize funding and impact, the insights and future-state roadmap provided by Tech 42 have positioned us to move quickly when the time is right. Their strategic guidance and technical depth made this a high-value engagement for our team.”

Armin Pourshafeie

Co-Founder and CTO

AWS Migration

RealWork Labs: OpenAI to Bedrock migration

"Partnering with Tech 42 has been an excellent experience. Their team guided us through a seamless migration from our existing OpenAI implementation to an AWS Bedrock–based solution that has transformed the efficiency of our content generation workflow. A task that once took 15 minutes of manual work per job is now automated and runs in under 30 seconds, positioning us to handle larger clients and increasing volumes with ease.

The Tech 42 team was responsive, patient, and collaborative throughout the process. Even beyond the initial timeline, they continued refining the solution to ensure we had everything we needed. Their communication was clear, and they provided thorough documentation and a smooth code handoff so our team could confidently take the work forward.

We’re very pleased with the outcome of this project and look forward to continuing our partnership with Tech 42 in the next phase."

Brian Luskey

VP of Product, Design, and Engineering

LLM Fine Tuning

Vallor: Synthetic data generation and LLM fine-tuning

"Tech 42's expertise in synthetic data generation and LLM fine-tuning was exactly what we needed to accelerate our Al procurement platform. They delivered a solution using Amazon Bedrock to generate synthetic training questions and successfully fine-tuned Llama 3 8B for our business application. Their systematic approach and AWS partnership made the entire project seamless."

Antonio Goncalves

Founder and CEO

AI DevOps & Infrastructure

Peoples Energy Analytics: Multi-tenant cloud architecture

"Working with Tech 42 was an exceptional experience. Their team designed and implemented a secure multi-tenant cloud architecture to protect client data, leveraging native and scalable provisioning capabilities to enable seamless account automation and streamlined stack deployment. They also built out dedicated compute environments for model training, ensuring each user’s data was fully isolated within fully segmented accounts.

Communication was clear and consistent throughout and the team showed remarkable patience as we worked through internal resourcing challenges. Tech 42 delivered everything outlined in the project scope, provided thorough documentation, and equipped our team with the knowledge transfer needed to move forward confidently.

We’re extremely satisfied with the outcome and look forward to partnering with Tech 42 again in the future."

Malcolm Blow

Director of Cybersecurity

AI DevOps & Infrastructure

PathPilot: AI cloud infrastructure optimization

"Working with Tech 42 was a fantastic experience. Their team brought deep AWS expertise and made a significant impact on our infrastructure, helping us transition from manual AMI-based deployment to a modern, scalable architecture using ECS, Docker, and SQS. The shift has streamlined our DevOps process and positioned us to better support future AI workloads.

Our assigned engineer, in particular, was an incredible partner, knowledgeable, hardworking, and always responsive. His support with Terraform, AWS deployment, and infrastructure tuning was invaluable. We learned a lot throughout the engagement and were able to move significantly faster thanks to the foundation Tech 42 provided.”

David Altman

Head of Artificial Intelligence

Document Processing
AWS Migration

ePlane: AI-powered document processing

“Partnering with Tech 42 has been a great experience. Their team quickly understood our technical goals and delivered a robust, scalable solution to support our future migration to AWS Bedrock. From setting up CI/CD pipelines to building intelligent post-processing features, they equipped us with a strong foundation for our document processing workflows. Their collaborative approach, responsiveness, and deep technical knowledge made the engagement both smooth and impactful.”

Richard Alexander

AI / Deep Learning Project Manager

AI Agent

The CoBuilders: AI agent proof-of-concept

"Partnering with Tech 42 on our AWS Agent Proof-of-Concept has been an excellent experience. Their team delivered exactly what we needed — a modernized AWS-based architecture that gives us confidence in scaling our AI-powered SCRUBgpt platform and sets the foundation for our broader roadmap at The CoBuilders.

The technical expertise was outstanding. Tech 42 was able to clearly explain complex details and design an architecture that not only solved our immediate scaling challenges but will also support our long-term product vision. The coordination and communication throughout the engagement were equally strong — Slack updates, well-scheduled meetings, and the team's flexibility made collaboration seamless.

This project has given us both the tools and the confidence to move forward with the next phase of our AI journey at The CoBuilders. We're very pleased with the results and look forward to continuing our partnership with Tech 42."

Michael Nelson

Founder & CEO

AI Agent

Churnkey: AI strategy and architecture planning

“Working with Tech 42 has been an excellent experience. Their team brought the right expertise to deepen our AWS architecture planning and identify new ways to amplify our behavioral data with machine learning and AI. The engagement provided clear, actionable recommendations to streamline our architecture, ensure scalability, and drive cost efficiency.

The Tech 42 team exceeded our expectations with clear communication and responsiveness. We also valued their ability to highlight the right AI approaches and frame complex concepts in a way that supported our team’s strategic thinking.

Overall, this project sharpened our strategy and accelerated our plans to evolve Churnkey’s platform with AI.”

Nick Fogle

Founder & CEO

AWS Migration
AI DevOps & Infrastructure

American AI Logistics: AI-powered prediction

“Working with Tech 42 on this project was an outstanding experience. The team was highly communicative and collaborative throughout, ensuring that every step was clear and aligned with our needs. The prediction mechanism they delivered was not only effective but also implemented with a level of thoroughness and documentation that exceeded our expectations. Tech 42 set a high standard — hitting the mark with quality, responsiveness, and results. We now feel confident in moving forward with the solutions they built and look forward to continuing our partnership in future phases.”

Roumen Kassabov

Chief Technology Officer