Techstack company

I am the Head of Marketing of an AI and data consulting company

We works like an AI and Data Consulting company, helping businesses in Europe and USA build their own technology products and systems.

Referral

2-5 Employees

Techstack redesigned our AI architecture by moving from a single-vector to a multi-vector RAG approach, enabling more accurate and stable responses. They built an automated Jest-based testing framework in TypeScript to benchmark AI output against expected results. The team implemented continuous evaluation loops and Slack-based alerting when accuracy dropped below defined thresholds. They also created a synchronization solution using AWS Lambda to ensure PostgreSQL data stayed updated in the vector store. Final deliverables included the redesigned system, testing suite, alerting tools, documentation and long-term performance guidelines.

Our AI answer accuracy increased from 68% to 89%. Insight retrieval time dropped by about half. Manual QA was reduced by roughly 70% thanks to automated monitoring. Trust in AI-generated content improved across marketing and sales, leading to broader adoption internally.

Techstack’s team delivered everything on time, stayed fully aligned with our goals and consistently monitored quality throughout the entire process. They managed the project responsibly, proactively and always within the set budget. Communication was clear and responsive at every stage.

Their mix of deep AI expertise and disciplined delivery stood out. They focus on long-term stability, measurable improvements and clear architectural reasoning. The team consistently communicate in a way that makes complex systems easy to understand. They deliver real, measurable value and approach our project with a level of ownership and professionalism that’s hard to find.

No. The work was delivered efficiently and exactly as we needed.

I am the Partner of Route One Consultancy

Route One Consultancy is a global finance and operations partner built by operators - not just advisors.

2-5 Employees

From the very beginning, Techstack impressed us with how quickly they understood our system and where the problems were. They started with a detailed QA audit that highlighted the gaps in our coverage and the processes that were slowing us down. After that, they built a custom automation framework tailored to our product architecture. It covered key user flows through automated smoke tests and integrated seamlessly into our CI/CD pipeline. On top of that, they set up an analytics and reporting layer that gave us clear visibility into test results and quality trends. Their documentation and onboarding materials made the final handover smooth and easy for our team to adopt.

Manual testing was reduced to a minimum, and we saw a significant drop in regression issues. Because automation was fully embedded into the pipeline, our development and QA teams started working in sync, which led to much more stable and confident releases. Testing cycles that once took several days are now finished within hours.

The Techstack team was proactive, transparent and always a step ahead when it came to communication and planning. They struck a great balance between being flexible to our needs and maintaining a high technical standard.

What really stood out was their engineering mindset. Techstack company didn’t push a one-size-fits-all approach; they designed a framework that matched our environment perfectly. You could tell they genuinely cared about long-term results, not just delivering a task list. They’re dependable and have a genuine commitment to quality that’s hard to find.

We didn’t encounter any real issues throughout the process.

I am the CEO of GLS Meida LLC

Media Buying & Advertising.

2-5 Employees

Techstack took full responsibility for the mobile implementation. They built a reliable bridge between our backend’s dynamic audio generation and the React Native client, and developed a native iOS module in Swift that could process and stream tiny audio chunks in real time. Their solution completely eliminated the “clicks” and gaps between audio segments. They also added adaptive playback controls and optimized the buffering system so that the experience stayed stable even on low-end devices or slower networks.

Audio playback that used to lag by several seconds became nearly instant, and the glitches were almost completely gone. Our engagement metrics started climbing, users were spending more time in conversation mode and feedback highlighted how natural the dialogue now felt. The AI voices finally flowed without interruptions, and the entire experience became much more immersive.

Working with Techstack was easy from start to finish. They were fast, highly organized and transparent about every step of the process. Despite the technical complexity, communication was effortless and every milestone landed right on schedule.

What really stood out was their ability to merge strong engineering expertise with a genuine understanding of user experience. They didn’t just patch performance issues; they redesigned the entire streaming logic with the end user in mind. They bring deep technical skill and product thinking that’s hard to find in a development partner.

There’s really nothing we’d change about the collaboration.

I am the Compliance of a digital platform solution provider.

PalWallet provides a full-scale digital platform solution for both B2C and B2B clients

We worked with Techstack to realize the idea - to build a mobile app that would make motorcycle rides safer, smarter, and more connected. It wasn’t a simple project. We needed a system that could pair with helmet communicators via Bluetooth, handle real-time group tracking, send emergency alerts, and still be so intuitive that riders could use it without distraction.

2-5 Employees

The Techstack team built the Android app from scratch, focusing on stability, responsiveness, and usability. They created a reliable Bluetooth pairing and management system for helmet communicators, implemented adaptive noise-cancellation for changing riding environments, and built a crash detection system that automatically sent alerts to emergency contacts. The app also included real-time GPS-based location sharing for group rides and over-the-air firmware updates for helmet communicators. The interface was designed to minimize distraction: everything about it felt lightweight and rider-friendly.

Within six months of launch, it surpassed 500,000 downloads with a 78% retention rate and a strong adoption rate for premium features. The product also attracted the attention of several major helmet manufacturers, resulting in new partnerships and hardware integrations. Beyond the numbers, it helped shape a community of riders who now rely on the app for safety and connection.

The Techstack team stayed consistent with updates, held weekly syncs, and made it feel like we were working together rather than outsourcing. They respected deadlines, managed expectations transparently, and always kept quality front and centre

Their ability to blend technical precision with empathy was remarkable. They thought like end users. Every design choice and technical decision was made with the rider’s experience in mind. The balance between innovation and real-world usability is what made the final product stand out.

There’s nothing I would point out.

I am the CEO of a cybersecurity company.

We specialilizes in providing high-quality cyber security consultancy and IT services to global companies in various industries.

Referral

2-5 Employees

Techstack provided end-to-end development support. Their team designed and implemented a microservice that worked with OpenAI’s GPT-4o-mini model to generate multiple Store Note drafts in one go. They also handled integration with our mobile app, built on React Native, and optimized everything for speed and stability. Their QA engineer ensured every part of the flow worked smoothly, and their designer helped shape a clean, focused interface that felt simple even for non-technical users.

Over seven thousand sellers tried the new feature in the first rollout, generating more than nineteen thousand AI notes. Almost sixty percent edited the AI suggestions before saving, which proved the balance between automation and human touch was right. The engagement rate reached 79%, and sellers who used Store Notes ended up raising around 38% more funds.

Their project management was with no surprises or delays. The team communicated transparently, provided daily progress updates, and treated the project like it was their own. They were detail-oriented and proactive, always checking that the implementation aligned with our business goals.

What impressed us most about Techstack was how quickly they understood our product and user behavior. Their developers were genuinely curious about the purpose behind every feature, which led to smarter technical decisions and a more natural user experience overall.

There really wasn’t anything we would change about this collaboration. I’d recommend Techstack company without hesitation. They’re fast, smart, and care about the impact of their work. You get a thoughtful team that helps you create a system people will actually love using.