C++ Software Engineer

4 days ago

London Area, United Kingdom mthree Full time

Travel & Aviation Technology - C++ - Flight Management Systems A global leader in travel and aviation technology is seeking a skilled C++ Engineer to join their Flight Management System (FMS) engineering team in London. This group builds mission-critical software used by airlines worldwide - powering real-time flight operations, route optimisation, and next-generation cockpit intelligence. You’ll work on high-performance, multi-threaded systems that directly impact global aviation efficiency, fuel optimisation, and safety -contributing to one of the most advanced FMS platforms in the industry. Responsibilities Design and develop C++ applications for core Flight Management System components Work on real-time data processing for flight planning, scheduling, and air traffic control integration Implement and optimise algorithms for fuel efficiency, route optimisation, and aircraft performance modelling Contribute to multi-threaded, high-performance architectures used in large-scale airline operations Collaborate with system architects, engineers, and aviation domain specialists to enhance FMS capabilities Perform code reviews, debugging, unit testing, and performance tuning Support the evolution of cloud-enabled and AI-driven features within the FMS ecosystem Required Skills Strong proficiency in C++ (C++11/14/17). Experience in multithreading, memory management, and performance optimization. Solid understanding of software development life cycle (SDLC) and best coding practices. Experience working with Linux-based development environments. Strong problem-solving and analytical skills with a passion for aviation technology. Good understanding of networking protocols and distributed systems is a plus.

  • C++ Software Engineer

    17 hours ago

    London Area, United Kingdom Miller Maxwell Ltd Full time £80,000 - £120,000 per year

    C++ Software Engineer – STL – UNIX - London Miller Maxwell is assisting a Tier-1 electronic trading organisation that is expanding its team as part of their 2026 growth plan. They seek a talented C++ Software Engineer to join the client's London team. This role will be a key contributor to the enhancement of their electronic trading ecosystem and...

  • C# Software Engineer

    6 days ago

    London Area, United Kingdom Vallum Associates Full time £90,000 - £110,000 per year

    C# Software Engineer - Financial Services - C#, .NET CorePermanent role£90,000 - £110,000 base + 15% BonusHybrid - Three days per week in the London officeC# Software EngineerThe ideal Software Engineer candidate will have had exposure working in financial services technology.Must have strong C#, .NET, .NET Core, AWS experienceAny knowledge of accounting...

  • C++ Software Engineer

    4 days ago

    London Area, United Kingdom mthree Full time

    Travel & Aviation Technology - C++ - Flight Management SystemsA global leader in travel and aviation technology is seeking a skilled C++ Engineer to join their Flight Management System (FMS) engineering team in London. This group builds mission-critical software used by airlines worldwide - powering real-time flight operations, route optimisation, and...

  • Software Engineer

    2 days ago

    London Area, United Kingdom Vallum Associates Full time

    Software Engineer (C# & Python) Perm roleSalary £72k - £80k + 15% bonusHybrid role - 3 days in the London officeMust have commercial experience using C#, .NET Core, PythonThis role sits within our clients core engineering team and this team is responsible for building out some of their industry leading capital markets trading technology, and your work as a...

  • C++ Software Engineer

    5 days ago

    London Area, United Kingdom mthree Full time £60,000 - £150,000 per year

    Travel & Aviation Technology - C++ - Flight Management SystemsA global leader in travel and aviation technology is seeking a skilled C++ Engineer to join their Flight Management System (FMS) engineering team in London. This group builds mission-critical software used by airlines worldwide - powering real-time flight operations, route optimisation, and...

  • C++ Performance Software Engineer

    22 hours ago

    London Area, United Kingdom NJF Global Holdings Ltd Full time £150,000 - £500,000 per year

    C++ Performance Software EngineerSalary: £150k-200kTotal compensation: £250k-500k+ (depending on performance and seniority)A leading global systematic trading firm is seeking a performance-focused Software Engineer to build ultra-low-latency infrastructure bridging hardware and software for quantitative trading systems.You will bridge cutting-edge hardware...

  • C++ Software Engineer

    2 weeks ago

    Greater Lincoln Area, United Kingdom Metis Full time £40,000 - £80,000 per year

    Software Engineer C++ (All Experience Levels)Location:Lincoln, UKType:Permanent, Full TimeSalary:CompetitiveAt Metis Aerospace, we design and build advanced hardware and software systems that deliver real-world insight from complex data. Our software team creates the tools and systems that bring our technology to life, and we're looking for another engineer...

  • C++ Software Engineer

    3 weeks ago

    london, United Kingdom Miller Maxwell Ltd Full time

    C++ Software Engineer - Linux - Unix - STL - High-Performance Systems - x2 days in London office required. Miller Maxwell is assisting a highly reputable organisation seeking to expand their core engineering team. A C++ Software Engineer is required to start in January 2026 or February 2026 to join a low-latency trading team working on the design,...

  • C++ Software Engineer

    1 week ago

    London, United Kingdom Yoh, A Day & Zimmermann Company Full time

    **C++ Software Engineer - High Performance Computing, GPU, Video Processing** **Permanent - Salary Circa £60,000 to £70,000 per annum plus company equity, bonus, pension, medical, life insurance, hybrid remote working etc..** C++ Software Engineer with advanced skills in modern C++ and high performance computing / Graphics Processing Unit (GPU)...

  • C++ Software Engineer

    3 weeks ago

    City of London, Greater London, United Kingdom Miller Maxwell Ltd Full time

    C++ Software Engineer - Linux - Unix - STL - High-Performance Systems - x2 days in London office required. Miller Maxwell is assisting a highly reputable organisation seeking to expand their core engineering team. A C++ Software Engineer is required to start in January 2026 or February 2026 to join a low-latency trading team working on the design,...