Callstack

Backend Engineer

• Act as a technology expert for our clients, discuss challenges and advise in architectural discussions
• Drive the development process by providing expertise and solving the most complex programming issues
• Create project documentation
• Collaborate with development teams, CTOs, Project Managers, and Product Owners from all around the world
• Have multiple possibilities to contribute to the Open Source community by working on projects led by our CTO, React Native Core Contributors, and our Senior Developers
• Be one step ahead exploring technologies of tomorrow, being a part of our R&D activities

Senior Mobile C++ Developer

Technical Project Manager

• Lead and manage end-to-end delivery of small and mid-size projects, ensuring budget, timelines, scope, and quality standards are met
• Define project plans, manage schedules, and coordinate cross-functional teams to keep work on track
• Maintain project governance documentation, ensuring accuracy and compliance with internal standards
• Monitor project performance, preparing regular status updates, reports, and dashboards
• Monitor project budgets, keeping track of spent hours and costs, and flagging variances early
• Identify, track, and manage project risks, issues, and dependencies, ensuring effective mitigation
• Facilitate communication with stakeholders, ensuring alignment and clarity throughout the project lifecycle
• Run project ceremonies (kick-offs, stand-ups, retros, reviews, etc.) and ensure good meeting hygiene
• Improve project delivery processes, proposing and implementing enhancements within the PM and delivery teams
• Contribute to internal PM initiatives, including tooling, documentation, and operational improvements

IT Project Manager

Product Manager

• Write clear, comprehensive user stories with detailed acceptance criteria, user journeys, and relevant design and architectural specifications
• Define and uphold a strict Definition of Ready (DoR) and Definition of Done (DoD) to ensure clarity and the highest quality throughout the development lifecycle
• Prepare and lead engaging Sprint Demos for stakeholders, showcasing the team's achievements and gathering valuable feedback
• Act as the final gatekeeper for sprint deliverables, signing off on user stories and bugs to confirm they meet all acceptance criteria
• Embrace a data-driven approach by defining success metrics (KPIs, ROI) and aligning with stakeholders on product impact goals
• Lead requirements gathering workshops (Inspect Phase) with technical experts and stakeholders to elicit business needs and mitigate gaps
• Conduct backlog refinement sessions, breaking down epics into manageable, well-defined stories and mapping all dependencies
• Collaborate closely with the Scrum Master and development team during PI Planning and throughout sprints to manage priorities, resolve blockers, and ensure a high story completion rate
• Champion a customer-focused mindset, deeply understanding user pain points and ensuring they are addressed in the product backlog

Product Owner

Project Manager

• Support Project Managers in day-to-day project operations
• Take ownership of small maintenance and internal projects
• Assist in resource planning and allocation across projects
• Maintain project governance documentation, ensuring compliance with internal standards
• Prepare and manage reports and dashboards related to project performance and utilization
• Track project risks, actions, and deliverables
• Help streamline internal PMO processes and tools
• Contribute to continuous improvement initiatives within the PM team

Project Management Coordinator

• Manage Agile software development projects, mainly mobile applications
• Ensure your projects are delivered on-time, within the planned scope and budget
• Promote continuous improvement attitude and optimize the teams’ daily work
• Work closely with the client and the PO on identifying and defining project requirements and scope
• Take charge of project planning, execution and reporting
• Recommend and implement adequate project management frameworks fitted to the needs of the project and the client
• Lead the team the way that guarantees top quality of work and stakeholders’ satisfaction
• Monitor the project progress using various metrics and support the dev team in resolving any problems they encounter
• Report directly to Portfolio Manager
• Equip the team with appropriate tooling to facilitate work
• Monitor and manage project risks and develop mitigation plans
• Have a proactive attitude to problem solving

Senior IT Project Manager

• Manage Agile software development projects, mainly mobile applications
• Ensure projects are delivered on-time, within the planned scope and budget
• Promote continuous improvement and optimize teams’ daily work
• Maintain close communication with US clients and Product Owners (supporting US time zones 16:00–22:00 CET)
• Work with client and PO to identify and define project requirements and scope
• Take charge of project planning, execution and reporting
• Recommend and implement project management frameworks tailored to project and client needs
• Lead the team to guarantee top quality and stakeholder satisfaction
• Monitor project progress using metrics and support dev team in resolving problems
• Report directly to Portfolio Manager
• Equip the team with appropriate tooling to facilitate work
• Monitor and manage project risks and develop mitigation plans
• Have a proactive attitude to problem solving