At Decisal we develop software that enables airlines around the world to optimize and analyze their planing and scheduling. We are currently expanding our products and seeking a talented and passionate Software Engineer C++ to join our dynamic team.

As a Software Engineer C++, you will play a key role in designing and developing cutting-edge software solutions. You will collaborate with customers to implement new features and enhance existing systems. You will have the opportunity to work on projects that have a significant impact on our customers and the industry as a whole.

We foster a collaborative and innovative work environment where your ideas are valued and your contributions are recognized. Decisal Ltd is committed to providing a supportive and inclusive workplace that encourages growth and professional development.

If you are a highly motivated individual with a strong background in C++ programming and a passion for creating high-quality software, we want to hear from you!

Design, code, test, and debug C++ applications, ensuring high level of quality and performance
Collaborate with customers to gather requirements and translate them into technical specifications
Maintain and improve existing software systems, applying best practices and making enhancements as requested
Troubleshoot and resolve software defects and issues in a timely manner
Stay up-to-date with industry trends and advancements in C++ programming to continuously enhance skills and knowledge

About the company

Decisal builds optimization software for airlines to plan schedules and manage operations. Its product uses Unified Optimization & Management to coordinate flight planning, crew scheduling, and maintenance across departments with a single system. The core of the product is advanced optimization algorithms that model routes, times, aircraft, crews, and demand, then compute schedules that maximize profitability while satisfying safety, regulatory, and operational constraints. This approach enables cross‑department cooperation by sharing a single plan and data set, reducing silos and manual handoffs. Decisal differentiates itself by its unified optimization framework and strong academic recognition, including hundreds of citations in peer‑reviewed journals, and by being created by Imperial College students. Its goal is to help airlines increase profits and operate more efficiently by delivering optimized, collaboratively generated plans.

Company Size

1-10

Company Stage

N/A

Total Funding

N/A

Headquarters

London, United Kingdom

Founded

2006

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Simplify's Take

What believers are saying

Decisal won new contracts from SAS, HK Express, Cathay Pacific, and Caribbean Airlines in 2025-2026.
Embraer renewed in 2025 and LOT Polish Airlines added another optimizer, proving expansion.
IBM named Decisal a global entrepreneur success story, strengthening enterprise credibility.

What critics are saying

Decisal lacks disclosed funding, leaving growth dependent on customer cashflows and contracts.
Airline software sales are lumpy; one lost renewal from Embraer or LOT hurts quickly.
Direct competition from established operations vendors can commoditize planning optimizers by 2027.

What makes Decisal unique

Imperial College London research roots still anchor Decisal's SchedulAir optimization engine.
Decisal serves airlines and aircraft makers, including SAS, Cathay Pacific, Embraer, and Copa.
London HQ and Vietnam office support airline planning software development at lower cost.

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Decisal

Software Engineer C++