June 10, 2026
Senior Software / Systems Engineer – Python, C++, Networking
Senior • Hybrid
18,900 - 27,300 PLN
Warsaw, Poland
Ignite Innovation in Embedded Systems — Redefine the Future of Connectivity and Security!
Warsaw-based opportunity with hybrid work model.
As a Senior Software Engineer, you will be working for our client, a leading company in the manufacturing industry, focused on the development and deployment of critical encryption infrastructure. You will play a vital role in maintaining and advancing secure server and device solutions across Windows, Linux, and cloud environments. Join us to push the boundaries of hardware-software integration, ensuring robust security and operational excellence in high-stakes production lines. This is your chance to be part of pioneering technological progress.
Your main responsibilities:
- Develop backend solutions in Python and hardware device drivers to support encryption systems.
- Create new Windows applications based on existing modules, extending functionality and performance.
- Enhance frontend components mainly supporting existing JavaScript modules in Node.js/Express.
- Automate CI/CD workflows, develop tests, and streamline deployment processes.
- Support and improve Windows batch scripts, deploy Windows services, and troubleshoot related applications.
- Diagnose and resolve issues within Python, JavaScript, and C++ codebases.
- Identify system risks, propose mitigation strategies, and implement solutions to prevent future problems.
- Collaborate directly with product development teams on evolving existing solutions and developing new products.
- Manage Windows and Linux servers on-premises and in the cloud, overseeing network configurations and VPN connectivity.
- Navigate and maintain cloud-based systems, primarily AWS and Azure.
- Conduct upgrades and deployment of encryption infrastructure on new production lines.
- Occasionally travel domestically and internationally (up to 5%).
You're ideal for this role if you have:
- An Engineering Degree in Electronics or Computer Science.
- At least 5 years of hands-on experience in IT, automation, software engineering, or electronics.
- Strong proficiency in IP Networking, computer systems, and database management.
- Proven troubleshooting skills in Python and C++, with experience in Windows and Linux environments.
- Ability to proactively identify risks and craft effective solutions.
- Excellent communication and collaboration skills for working with international teams.
- Fluency in English, both spoken and written, for technical documentation and team interactions.
It is a strong plus if you have: (optional)
- Experience working with Azure or AWS cloud platforms.
- Background in PKI system development.
Language Required for the role:
- Fluent in English and Polish.
Eligibility for the role:
- Only candidates with an existing legal right to work in the European Union will be considered for this role.
#MAKEYourCareerBETTER
Interested? Apply now and include your CV (preferably in English) along with a statement confirming your consent to the processing and storage of your personal data.
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Warsaw, Poland
130 - 160 PLN
🏢 Summary: Senior Software Engineer role focused on designing and delivering scalable solutions within complex distributed systems at significant scale. The position requires strong ownership, architectural decision-making, and collaboration across cross-functional teams. The engineer will drive high-impact technical initiatives in a large, distributed environment. 🗂️ Requirements: Degree in Computer Science or equivalent practical experience, Proven experience delivering complex, large-scale software solutions, Hands-on experience with distributed systems, Ability to make independent architectural decisions, Strong collaboration and communication skills, Ability to operate autonomously with high ownership 📃 Skills: DistributedSystems, Architecture, Scalability, Reliability, Observability, SoftwareEngineering, ComputerScience 🏢 Description: Senior Software Engineer About the Role We are looking for a Senior Software Engineer to join a high-scale product environment operating within complex distributed systems. This role is designed for a highly autonomous individual contributor who can take ownership of complex technical initiatives, influence architectural direction, and deliver scalable, reliable solutions in a large organizational setting. You will collaborate cross-functionally with engineering, product, and design teams while contributing to systems used at significant scale. Key Responsibilities Design and deliver high-complexity system components and features Make informed architectural decisions and evaluate technical trade-offs Ensure quality, scalability, reliability, and observability of delivered solutions Identify and manage technical risks, dependencies, and technical debt Develop deep understanding of the product domain and user impact Collaborate effectively across teams in a distributed engineering environment Operate with high autonomy and ownership Contribute to or elevate engineering standards within the team Mentor or support less experienced engineers when needed Requirements Education Degree in Computer Science, Software Engineering, or equivalent practical experience Experience & Competencies Proven experience as a Senior Software Engineer delivering complex, large-scale solutions Hands-on experience working with distributed systems Strong communication and collaboration skills Ability to independently drive architectural decisions Strong sense of ownership over delivered solutions Nice to Have Experience shaping or improving team-level engineering standards Experience collaborating across multiple teams in complex organizational structures