Senior Advanced Software Engineer - hybrid

As a Senior Advanced Software Engineer here at Honeywell, you will be responsible for developing software under the LenelS2 OnGuard product line. In this role, you will impact the security landscape by contributing to industry-leading solutions which protect and manage critical infrastructure for our clients, enhancing their operational efficiency and safety. https://buildings.honeywell.com/us/en/brands/our-brands/lenels2/security-products/onguard This is a hybrid role, 3 days from the office and 2 days from home. Honeywell Honeywell Building Automation is transforming the way every building operates to help improve the quality of life for the people who use them. With a portfolio featuring software, hardware and services, Honeywell takes an outcome-focused approach to help building owners and operators improve safety and security, energy and operational efficiencies to create a better building experience. Helping to Transform Buildings to be Safer and More Operationally and Energy Efficient. Designing and implementing software for the LenelS2 OnGuard platform Participating in the full software development cycle Collaborating with cross-functional teams in an international environment Supporting team members in their development Shaping the architecture and participating in building the strategy for further software development Bachelor’s degree in computer science or related field, or equivalent experience Minimum 4 years of experience in software development Very good knowledge of C++14 and above, SQL, REST API Knowledge of distributed systems and client-server architecture Experience with and willingness to leverage GenAI coding assistants (i.e. GitHub Copilot, OpenAI Codex) Good written and verbal English and Polish communication skills Nice to have: Strong analytical and problem-solving skills Experience in developing distributed or high-performance systems Background in gathering or shaping requirements for the product Experience with any of the following: C++ 14 and beyond, C# (.NET Framework), Message Broker (e.g. RabbitMQ), Rust, Visual Studio Our offer: State-of-the-art office with chill-out areas, bicycle stands, showers and probably the best coffee in town Fruits bowls and sports activities to support your health and well-being Daily paid break - 30 mins and flexible working hours Hybrid work arrangement (3&2) to support your work-life balance Competitive Salary regularly increased based on your performance Flexible benefits basket with monthly budget allocated (medical insurance, life insurance, Multisport Card) Generali Insurance (Accident Insurance) Referrals bonuses for all open jobs and recognition programs Comprehensive induction, ongoing training and development to set you up for success In-house and external learning platforms supporting development opportunities Work experience opportunities to help you grow your career with us Global employee networks to help you connect and grow Employee Assistance Program - Free and confidential service to help with any difficulties regarding work, life and personal or family matters Access Integrity line - Any workplace issues or violations that need to be raised in good faith, can be communicated in a safe, private and confidential environment Frequent Employee Engagement activities supporting inclusive and diverse work environment Contribution to social benefits like x-mas benefit, holiday, engagement events from company social fund. We are an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. We will ensure that individuals with disabilities are provided reasonable accommodation to participate in the job application or interview process, to perform crucial job functions, and to receive other benefits and privileges of employment. Please contact us to request accommodation. Join us now and be part of a global team of thinkers, innovators, dreamers, and doers who make the things that make the future! #FutureShaper #GdanskEngineering2026 #PWIT