Senior Software Engineer (Public Transport)

Náplň práce, právomoci a zodpovednosti:

FREQUENTIS Solutions & Services (FSS) as a member of the Austrian Group FREQUENTIS AG, is focused on software development, system engineering and delivery of safety-critical voice communication and information systems. Our solutions are developed and distributed in the following business segments: Air Traffic Management & Defence (civil and military air traffic control, aeronautical information management), Public Safety (police, fire and rescue services, emergency medical services) and Public Transport & Maritime (railway and urban transport solutions, vessel traffic management).

We are looking for an experienced Technical Lead to strengthen our growing product team and help scale a high-demand solution evolving from an incubator initiative into a mature product. You will act as the technical backbone of a cross-functional, self-organizing team working on safety-critical communication systems, shaping the technical direction and enabling the team to deliver high-quality solutions.

Join an international technology leader and contribute to building reliable, scalable systems while enjoying flexible working conditions and a strong work-life balance.

Working Model:

• Fully remote working model

• Occasional onsite presence in Bratislava or Vienna, depending on project and team requirements

Your Main Responsibilities

• Shape the technical direction of your team’s services, balancing long-term architecture with delivery needs

• Act as the technical backbone of a cross-functional team working on safety-critical systems

• Make key architectural decisions and evaluate trade-offs (e.g. consistency vs. availability, simplicity vs. abstraction)

• Review code and designs to ensure high quality and prevent structural issues

• Mentor and guide engineers, supporting their growth and decision-making

• Own your domain end-to-end while staying close to implementation details

• Ensure alignment with other teams in a distributed system environment

• Drive quality practices (testing, static analysis, observability, CI/CD)

• Contribute hands-on by implementing critical components in modern C++

• Translate business requirements into clear technical solutions in an agile setup

Technical Skills & Competencies

• Deep expertise in modern C++ (C++17, C++23 and beyond), including advanced features, template metaprogramming, and multiple paradigms (OOP, generic, functional)

• Strong experience in system architecture and design of distributed systems, microservices, and event-driven solutions

• Ability to define service boundaries, data ownership, and communication contracts

• Solid understanding of distributed systems challenges (consistency, failure modes, idempotency, etc.)

• Experience with asynchronous programming, real-time communication, and protocol design

• Knowledge of API design and schema evolution (e.g. JSON Schema, versioning)

• Experience with relational and embedded databases (PostgreSQL, MariaDB/MySQL, SQLite)

• Strong background in build systems and tooling (CMake, CI/CD pipelines, Jenkins or similar)

• Experience with containerization (Docker, Podman/Buildah) and large-scale codebase management

• Expertise in testing (e.g. Google Test), static analysis, and maintaining high code quality

• Familiarity with observability and tracing tools (e.g. OpenTelemetry)

• Experience working in agile environments and aligning across teams

Zamestnanecké výhody, benefity:

• Training and development program (business and product trainings, language course)
• Employee Referral Program (financial reward for recommending a successful candidate
• Employee assistance program (law consultations, finance/tax consultations, psychological assistance paid by employer)
• Meal contribution fully paid by the company
• Multisport card/Pension scheme contribution (DDS)
• Flexible working hours, home office
• Refreshments, company & team events

Požiadavky na zamestnanca:

• Strong technical leadership and ability to influence without formal authority
• Pragmatic mindset with the ability to balance ideal vs. practical solutions
• Excellent problem-solving and decision-making skills, even under uncertainty
• Strong communication skills across technical and non-technical stakeholders
• Mentoring mindset and ability to grow others in the team
• High commitment to quality and security in safety-critical environments
• Constructive approach to feedback, code reviews, and collaboration
• Ability to resolve conflicts and build consensus
• Self-organized and comfortable in cross-functional teams
• Team-oriented mindset with focus on overall impact