Critical Software

About the Company

At Critical Software, we believe our people are the core of who we are. Their talent, diversity, and ability to go beyond expectations shape everything we do. Working at Critical is about being part of a community built on purpose, values, and collaboration. Our commitment to engineering excellence makes us a trusted partner for some of the world’s leading companies in Aerospace, Railway, Medical Systems, Energy, Finance, and many more. We believe that technology is nothing without a passion to use it for good. That’s why we engineer change, helping to build a better and safer world through trusted and transformative technologies. Since 1998, we’ve helped companies in global industries like aerospace, transport, energy, healthcare and finance. Across the world, people and organisations depend on what we do. And we like that. Because it means that technology isn’t just our business. It’s our chance to help change the world. More than a company, we are a community. Our togetherness, culture and values are the foundations of who we are and what we do. We are proud to hold Benefit Corporation status, reflecting our commitment to sustainability, transparency, and business for good. We’re also one of only a few tech companies in the world to have both our waterfall and agile software development processes rated at CMMI® Level 5. Just as important as our technical expertise is our strong company culture, which guides us in everything we do. We’re recruiting for all of our locations right now and, if you’d like to find out more, please take a look at the careers section of our website.

Listed Jobs

Company Name

Critical Software

Job Title

Software Engineer

Job Description

**Job Title** Software Engineer **Role Summary** Design, develop, test, document, integrate, and support software solutions for critical industries such as Aerospace, Railway, Medical Systems, Energy, and Finance. Work in a cross‑functional, globally distributed team, participating in all stages of the software lifecycle and contributing to high‑impact products. **Expectations** - Bachelor’s degree in Engineering or a related technical field (Software, Electronics, Physics, Mathematics, etc.). - Minimum 3 years of professional experience in software development. - Proficient in C and C++; experience with full‑life‑cycle development. - Willingness to travel and collaborate across cultures. - Strong learning mindset and knowledge sharing across all seniority levels. **Key Responsibilities** 1. Gather and analyze requirements in collaboration with stakeholders. 2. Translate functional specifications into robust, maintainable design documents. 3. Write clean, efficient, and well‑documented C/C++ code. 4. Conduct unit, integration, and system testing, including automated test suites. 5. Produce comprehensive technical documentation and user training materials. 6. Deploy and integrate new features into existing production environments. 7. Provide post‑deployment support and troubleshooting. 8. Participate in code reviews, mentorship, and continuous improvement initiatives. **Required Skills** - C, C++ programming - Full‑cycle software engineering (requirements → design → implementation → testing → deployment) - Strong analytical and problem‑solving abilities - Excellent written and verbal communication - Team collaboration and interpersonal skills - Adaptability to diverse cultures and remote work environments **Required Education & Certifications** - Bachelor’s degree (or equivalent) in Engineering, Computer Science, Software Engineering, or a related discipline. - No specific industry certifications required.

Southampton, United kingdom

On site

Junior

06-11-2025