Senior C++ Software Engineer

Expleo Group

. Take end-to-end ownership of complex software models and specialized simulation applications .

Posted 10/26/2026full-timeBucharest • RomaniaSeniorWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates expertise in developing and maintaining C/C++ software models, with a strong focus on user interface design using Qt and .NET. Proficient in Agile practices, technical documentation, and mentoring junior engineers while collaborating effectively with diverse stakeholders.

Highest-signal resume keywords

C/C++ Software DevelopmentUser Interface Design (Qt, .NET)Agile Development PracticesTechnical Documentation PreparationEmbedded Systems Experience

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

C++STLObject-Oriented Programming (OOP)Object-Oriented Design (OOD)Mathematical Algorithms3D Graphics/RenderingReactPythonSimulation ApplicationsIntegration Testing

Soft Skills

Advanced English CommunicationTeam-WorkingCollaborationSelf-MotivatedProactive

Tools & Technologies

MS OfficeSVNGitJiraConfluence

Industry Keywords

Aerospace EngineeringSimulation SystemsHardware/Software System IntegrationMulti-Component Integration Troubleshooting

Tech Stack

Tools & technologies

PythonQtReactSubversionC++.NET

About the role

Key responsibilities & impact

Take end-to-end ownership of complex software models and specialized simulation applications
Make software design decisions and guide integration and validation
Resolve challenging technical issues and support the growth of other engineers
Analyze and decompose technical documentation for aircraft, helicopters, combat vehicles, ships, and related systems
Prepare software design documentation
Develop maintainable, reliable, and testable C/C++ software models, including instrument and indicator graphics and communication with host or driving applications
Design and develop user interfaces using Qt, .NET (C#), MFC, or relevant APIs
Develop specialized applications for simulation-industry requirements and contribute to architecture decisions
Define and execute standalone and integration tests
Troubleshoot defects and support deployment, system integration, acceptance, and validation
Contribute to design reviews, code reviews, technical estimates, planning, and delivery-risk identification
Collaborate with technical and non-technical stakeholders to clarify requirements and communicate trade-offs
Mentor junior engineers and promote effective engineering, documentation, testing, and Agile practices

Requirements

What you’ll need

Bachelor’s degree in Computer Science, Software Engineering, Information Technology, or another relevant technical field
Embedded-oriented experience with C++
Strong proficiency in STL, Object-Oriented Programming (OOP), and Object-Oriented Design (OOD)
Good understanding and practical implementation of mathematical algorithms
Advanced English communication skills, written and spoken
Proficiency in MS Office for technical and software design documentation
Familiarity with SVN and Git, Jira and Confluence, and Agile development practices
Availability to travel locally and internationally for various project assignments
Self-motivated and proactive, with ability to work effectively with minimal supervision
Strong team-working and collaboration skills
Experience in aerospace engineering, simulation systems, hardware/software system integration, multi-component integration troubleshooting, 3D graphics/rendering, React or Python, and AI tools is desired/plus

Benefits

Comp & perks

Benefit Platform
Holiday Voucher
Private medical insurance
Performance bonus
Easter and Christmas bonus
Employee referral bonus
Bookster subscription
Work from home options depending on project
Hybrid workplace arrangement