SII Group UK

About the Company

SII is a leading & trusted technology partner with over 10000+ professionals on-board. We strive to provide high value-added solutions for many large blue-chip corporations in which, SII have been supporting for more than 40 years. The Group relies upon our team of invaluable Engineers & Subject Matter Experts utilizing cutting edge technology whilst working alongside essential quality standards to carry out its activities in the following industries (not limited to):

• Aerospace & Defence
• Transportation
• Telecommunication
• Energy
• Automotive
• Banking & Insurance

The SII Group has opted for a corporate structure that offers the responsiveness and flexibility associated with local-level services and retained industry knowledge, with nine regional offices in eighteen countries across four continents, all of which have access to all the Group’s operational resources and can provide effective services to major international operations.

Due to expansion, SII UK was established in 2016 and has already experienced year on year growth. If you want to work for a company passionate about technology, innovation and all-round forward thinking and have experience in the following technical areas: Software Design/Development/Integration/Verification/Validation/Qualification/Test, Firmware Engineering, Hardware Engineering, Systems Engineering, 1st/2nd/3rd Level IT/IS Support, Cyber Security & Project Management then reach out.

Listed Jobs

Company Name

SII Group UK

Job Title

Software Engineer (SAR)

Job Description

**Job Title** Software Engineer – Synthetic Aperture Radar (SAR) **Role Summary** Design, implement, and optimize high‑performance ground‑based SAR image processing software. Work with the SAR payload team to ingest raw instrument data packets, develop algorithmic baselines, and transform data into Single Look Complex (SLC) images. Ensure robust data handling, calibration, and image quality while meeting stringent performance and latency targets. Collaborate across engineering disciplines and provide onsite support as required. **Expactations** - Deliver efficient, scalable SAR processing solutions that satisfy engineering specifications. - Maintain clean, well‑tested code aligned with best practices and version‑control standards. - Participate in weekly onsite reviews in Portsmouth to support close technical collaboration. - Communicate progress, challenges, and results clearly to multidisciplinary teams. **Key Responsibilities** - Interface with the SAR payload engineering team to parse and unpack raw telemetry packets. - Define and implement theoretical and algorithmic baselines for SAR data processing into SLC products. - Optimize and parallelize processing algorithms (GPU/CUDA, OpenMP, MPI) to meet performance and latency requirements. - Validate data handling, calibration procedures, and image quality throughout the processing pipeline. - Collaborate with engineering, science, and validation teams to integrate outputs and refine outputs. - Participate in code reviews, unit testing, and continuous integration pipelines. **Required Skills** - Proven experience in SAR, radar signal processing, or related remote sensing systems. - Strong background in image processing algorithm development (FFT‑based, time‑domain). - Proficiency in C/C++, Python, or MATLAB for scientific/numerical computing. - Experience with parallel and high‑performance computing (GPU/CUDA, OpenMP, MPI). - Understanding of telemetry packet structures and data formats. - Familiarity with scientific software design, Git, and testing methodologies. - Strong mathematical and analytical skills; ability to translate theory into production code. - Excellent communication and collaboration in cross‑functional teams. **Required Education & Certifications** - Bachelor’s degree (or equivalent) in Electrical/Electronics Engineering, Computer Science, Applied Mathematics, or a related STEM field. - Advanced degree (MSc/PhD) preferred for theoretical SAR expertise. - Certifications in C/C++ programming, CUDA development, or parallel computing are advantageous. ---

Portsmouth, United kingdom

Hybrid

Senior

20-11-2025

Company Name

SII Group UK

Job Title

Software Engineer

Job Description

**Job Title** Software Engineer **Role Summary** Develop, test, and support embedded software for defense systems using C and C++ in real‑time environments. Apply model‑based development and best practices to deliver high‑quality, maintainable code for RTOS deployments. **Expectations** - Deliver robust, tested embedded software that meets defense‑grade reliability and performance requirements. - Conduct design reviews, code reviews, and critical evaluations to ensure quality and compliance. - Collaborate with cross‑functional teams, providing technical guidance and assistance. - Prioritize and manage workload to meet project milestones under tight deadlines. **Key Responsibilities** - Design, code, and debug embedded applications in C/C++ for real‑time operating systems. - Test software changes on site and validate against specification. - Participate in analytical design activities: requirements analysis, risk assessment, and architecture reviews. - Perform software reviews and provide constructive feedback to peers. - Employ model‑based development tools and techniques to accelerate design iteration. - Apply modern software engineering best practices to maintain code quality and reliability. **Required Skills** - Strong proficiency in C and C++ for embedded systems. - Experience designing and implementing real‑time software on RTOS platforms. - Familiarity with model‑based development methodologies and tools. - Analytical thinking, problem‑solving, and critical evaluation abilities. - Excellent collaboration, communication, and teamwork skills. - Self‑motivated and capable of working under pressure to meet deadlines. **Required Education & Certifications** - Bachelor’s degree in Computer Science, Electrical Engineering, or related field (or equivalent professional experience). - No specific certifications required, but experience with embedded software standards and RTOS knowledge is essential.

Belfast, United kingdom

Hybrid

Senior

09-12-2025