codequest

Codequest is a Warsaw-based software development studio founded and led by Tomasz Korzeniowski. The team consists of roughly 30 engineers, designers, and operations staff working across mobile, web, AI, and drone development. They pitch themselves as partners for taking products from "zero to one," working with startups and mid-market companies to deliver iOS and Android apps, web platforms, AI/ML systems, and custom autonomous drones.

The studio has a 10-year track record and maintains a 4.9/5 client rating. They've won recognition including a NATO AI Hackathon silver prize (2024), Fintech Awards (2023), and placements in Intelligent Bot Development and Automation Design categories. Their work spans job search platforms (Glassdoor), e-commerce (delio by Żabka Group, Lite Jush), fintech (Zen), and consumer wellness (Weight Watchers, Cove).

Services and capabilities

Codequest organizes its offerings into seven main areas:

Mobile Development uses Swift for iOS and Kotlin/Java for Android, with React Native for cross-platform projects. They've handled full rewrites and augmentation work—Glassdoor's iOS and Android apps were completely rewritten on time and budget; Weight Watchers engaged them as a dedicated mobile extension team.

Web Development spans backends in Ruby on Rails, Node.js, Go, Elixir, and Kotlin; frontends in React or Angular; and microservices architecture. Foundersuite is their marquee example: a large Rails application combining idea validation, investor CRM, progress tracking, and template bundles. For delio and merXu, they built e-commerce and B2B trading platforms with messaging, bulk purchasing, and multi-language support.

Product Design includes Design Sprints, mobile and web design, UX research, and prototyping. They led design for Lite's Jush delivery app and the Cove sleep device's mobile experience, moving beyond pixels to define hardware-software communication.

AI Solutions Hub specializes in NLP, computer vision, predictive analytics, anomaly detection, and generative algorithms. Services include model training, data analysis, and prompt engineering. They reference expertise in sentiment analysis, chatbots, image recognition, video analysis, fraud detection, and quality control.

Custom Drone Solutions integrates proprietary software with hardware to build autonomous UAVs. Their drones use open-source flight controllers (iNav, BetaFlight, ArduPilot, PX4) plus custom source code modifications, advanced sensors (thermal cameras, GPS, LiDAR, IMU), and computer vision tools (OpenCV, YOLO, TensorFlow, PyTorch). Applications range from infrastructure inspection to agriculture, disaster response, and delivery. They placed second at a NATO-funded international hackathon requiring object tracking and detection on constrained hardware.

Machine Learning and Big Data round out their toolkit. They mention hands-on experience building AI and ML applications plus concurrent computing for large-scale data processing.

DevOps is handled by AWS-certified engineers; they support Docker, Kubernetes, and scalability post-deployment.

Notable work

Glassdoor engaged them for a full iOS and Android app rewrite serving millions of monthly users. The project shipped on time and within budget. CTO Rodrigo Oliveira praised their "unmatched tech proficiency."

Foundersuite founder and CEO Nathan Beckord has used them "as a workhorse for going on four years" and remains happy with the partnership. They built a large Rails application with design, branding, and product management input.

Lite (Żabka Group) brought them into the delio grocery app and later the Jush on-demand delivery product—UX/UI, backend, and iOS development. Jush promises 15-minute grocery delivery.

Zen partnered with Mastercard to build a fintech e-commerce solution. Codequest handled full iOS and Android development.

Weight Watchers' CTO sought augmentation; codequest became the designated mobile team.

Cove (sleep technology device) had them design the mobile experience and define device-to-software communication. The result was named one of the coolest gadgets of 2021.

merXu (B2B trading platform for CEE industrial goods) received a complete e-commerce platform with messaging, bulk purchases, international reach, and multi-language customer service.

How they work

Codequest emphasizes code quality, transparency, and pair programming. They've built an internal SaaS tool for automated code reviews. Their stated values include open communication with clients ("playing with open cards"), group code verification, and choosing the best technology for each problem rather than defaulting to a single stack. They favor microservices and mention offering free estimates via their contact form, suggesting flexible engagement terms.

Team and credentials

Founded by Tomasz Korzeniowski (CEO). The team of approximately 30 includes software engineers across frontend, backend, mobile, ML/AI, and DevOps; four team leaders; a UX/UI lead (Marta Łakomska); a QA tester; a project manager; a CFO (Izabela Korzeniowska); and a sales operations specialist. Wojciech Stanek is named as an ML/AI Engineer. The company holds Polish business registration (REGON: 146176183, VAT: 9512357282, KRS: 0000424452). No certifications (ISO 27001, SOC 2, GDPR compliance) are mentioned in the source. Awards include NATO Hackathon silver (2024), Fintech Awards (2023), and category wins for intelligent bots and automation. Client testimonials rate their work highly; Emil Kaiser (Manager at Booli SE) notes they "genuinely care about the product, including both the quality of the code and the resulting app."