Techstack company

Techstack is a Poland-based software development firm headquartered in Wroclaw with 200 engineers. Founded over a decade ago, the company works primarily with US-based clients across healthcare, manufacturing, logistics, energy, and social media. They hold a 5.0 rating on Clutch and report that 60% of clients have stayed for 5+ years or longer. About 30% of their client base comprises companies valued at $1B+.

The firm positions itself around three pillars: engineering services (building products from PoC through complex systems), optimization services (auditing and scaling existing products), and staffing (dedicated teams or individual augmentation). Their case studies show concrete delivery: a six-month MVP for a social reading app (Iliad) built with React Native and AWS serverless architecture; a computer vision system for solar panel defect detection; a healthcare app for symptom logging and heart rate monitoring built in React Native with HIPAA compliance; and a five-year modernization of a legacy sales platform that evolved from a monolith into microservices with AI features.

Services and capabilities

Techstack groups its work into three service tracks. Engineering services span PoC and MVP development, custom software development, AI integration, and data strategy. They claim 11 years building engineering teams and architecture models "from scratch that scale efficiently without compromising quality." Optimization services include software audits, quality assurance tailored per product, product scaling engagements, cloud migration, and legacy system modernization. Staffing services offer dedicated cross-functional teams embedded into client organizations, expert outstaffing, and what they call "AI-augmented engineering."

On the technical side, Techstack works across the full stack. Backend: Python, Java, Node.js, Go, C#, PostgreSQL, MongoDB, RabbitMQ, Kafka, REST, GraphQL. Frontend: React, Vue, Angular, Next.js, TypeScript, Redux, Tailwind CSS. Mobile: React Native, Flutter, iOS, Android, Ionic. Cloud and DevOps: AWS (EC2, Lambda, RDS, S3, CloudFront), GCP, Azure, Kubernetes, Docker, Terraform, Jenkins, GitLab CI. AI and ML: OpenAI API, TensorFlow, PyTorch, scikit-learn, computer vision (Hough Line Transform mentioned in defect detection case), Amplitude for analytics. They also list IoT, embedded development, and QA capabilities.

Their approach emphasizes domain expertise tied to engineering discipline. For healthcare, they've built patient engagement platforms with encryption, multifactor authentication, and US medical regulation compliance. For manufacturing and logistics, they've deployed real-time systems: defect detection using custom computer vision pipelines (no large training datasets required), delivery tracking, route optimization. For energy, they've built grid-level control software and renewable performance analytics tools. Startup work focuses on scalable architecture and fast iteration.

Notable work

Iliad (social reading app, US): Techstack developed a scalable MVP in six months using React Native with React Native Reanimated for animations, a microservices backend on AWS Lambda, and an AI recommendation engine that cached and validated Google Books API and ISBNdb data. They embedded Amplitude analytics.

Solar panel manufacturer (US, NY): A high-volume production facility needed to replace manual visual inspection. Techstack built a custom computer vision pipeline that detected defects using Hough Line Transform for sub-millimeter measurements, created real-time alerting, and designed a companion app for data visualization and statistical analysis to drive process improvements.

Healthcare provider (US, Minnesota): A patient care platform in React Native with accessible iOS and Android interfaces. The app integrated securely with existing backend systems via custom APIs, embedded multifactor authentication and encryption, and met full HIPAA and app store compliance.

Sales enablement platform (US, California): Over five years, Techstack transformed a brittle monolith into modular, scalable microservices. They refactored a live meeting module into a standalone product using Amazon Chime with AI features like real-time transcription and summaries, unified legacy products with SSO and a new navigation interface, and optimized file ingestion and content rendering. The result: lower downtime, faster analytics, reduced costs.

Cargo auction platform (US, Georgia): Techstack built a web and mobile bidding platform for a logistics provider with real-time notifications, high-volume bid support, automated processing, a secure transaction system with encryption and audit trails, and a winning-bid algorithm factoring cost, routes, delivery windows, and carrier reliability.

How they work

Techstack offers fixed-price discovery as an entry point. Projects follow clear roadmapping; an MVP typically requires 3–6 months depending on scope, integrations, and team size. Engagement models include dedicated teams, expert outstaffing, and fixed-price work. For discovery and scoping, they conduct an initial phase to define requirements and identify gaps before providing cost estimates. The firm emphasizes disciplined delivery, long-term engineering roadmaps, and accountability for critical systems. Communication appears to be direct—they list phone numbers (+1-213-329-6034 for US, +4-871-735-3668 for EU) and an email (hello@tech-stack.com).

Team and credentials

Techstack employs 200 engineers. The company is based in Wroclaw, Poland (9 Rybacka Street). They hold a Clutch 5.0 rating (no review count disclosed in source). The firm has published in GeekWire and HackerNoon on disaster recovery, technical debt, and project management. No founder names, certifications (ISO, SOC 2), or cloud partner status (AWS Select Partner, Microsoft, etc.) are mentioned in the source material.