
51 - 200 employees
Founded 2016
💼 Consulting
📣 Marketing
Consulting • Marketing • Software Engineering
Callstack is a leading software engineering consultancy that specializes in app development and technological transformation using React and React Native. They provide end-to-end product development services including mobile and web app development, app performance optimization, and tech stack upgrades. Their expertise in the React ecosystem makes them a trusted partner for companies looking to enhance and innovate their software solutions. Callstack also focuses on educating and upskilling development teams, enabling organizations to stay competitive and efficient.
Selected: 🆕 Date Added.
🕒 August 19
IT Security Officer securing systems, devices, identities, and data at Callstack, a cross-platform development consultancy. Managing cybersecurity, infrastructure, compliance, incident response, and security awareness.
🇵🇱 Poland – Remote
💵 zł20k - zł30k / month
⏰ Full Time
🟡 Mid-level
🟠 Senior
👮♂️ Cybersecurity / Security Engineer
👻 Ghost score 0%
AWS
Azure
Cloud
Cyber Security
DNS
Firewalls
Google Cloud Platform
Linux
MacOS
🕒 June 30
Account Growth Manager at Callstack responsible for client relationship management and revenue growth. Collaborating with technical teams to implement growth strategies and innovate for clients.
🇵🇱 Poland – Remote
💵 zł16.8k - zł23k / month
⏰ Full Time
🟡 Mid-level
🟠 Senior
📈 Growth Marketing
👻 Ghost score 2%
🗣️🇵🇱 Polish Required
🕒 June 16
Senior AI System Engineer consulting on AI solutions for enterprise clients. Responsibilities include designing AI architectures and building infrastructures across cloud and on-prem.
AWS
Cloud
Google Cloud Platform
Python
TypeScript
🕒 June 3
Senior React Native Developer at Callstack providing technology consultancy and building cross-platform products. Collaborating with global teams and contributing to Open Source projects while having fun.
JavaScript
Open Source
React
React Native