Linux Software Engineer

Alfen Recruitment; Old Warren; On-site; GBP 50,000 - 70,000; Full time

Job summary

A technology recruitment agency is seeking an experienced Linux Software Engineer to develop software for passport scanning devices. You will work with C++ and Python, focusing on image capture and processing functionalities. Ideal candidates have robust experience in Linux environments and familiarity with smart card technologies. This role offers a unique opportunity to contribute to innovative technology in a crucial sector.

Qualifications

• Strong C++ and Python development skills in Linux environments.
• Hands-on experience with Video4Linux (V4L2) for camera and image capture.
• Knowledge of HID integration for input and output hardware.

Responsibilities

• Develop and maintain Linux-based software for passport scanning devices.
• Implement image acquisition and processing functionality using Video4Linux (V4L2).
• Integrate with human interface devices such as buttons, LEDs, and sensors.

Skills

C++ development

Python development

Video4Linux (V4L2)

HID integration

PCSC for smart card communication

OpenCV for image processing

GUI development with GTK

Debugging and profiling

Git and build systems

Job description

Overview

Role Overview
We are seeking an experienced Linux Software Engineer to contribute to the development of software for a passport scanning device. The role will involve C++ and Python programming, working closely with cameras, smart cards, and human interface devices. You'll play a key part in designing and implementing functionality for scanning, image capture, user interfaces, and peripheral communications.

Responsibilities

• Develop and maintain Linux-based software for passport scanning devices
• Implement image acquisition and processing functionality using Video4Linux (V4L2)
• Integrate with human interface devices such as buttons, LEDs, and sensors
• Manage smart card interactions with PCSC for e-passport data reading
• Design and implement GUI components using GTK
• Optimise performance for real-time image capture and processing
• Troubleshoot hardware and software integration issues in a Linux environment
• Document technical designs, APIs, and user guides
• Work collaboratively with hardware, QA, and support teams

Required Skills & Experience

• Strong C++ and Python development skills in Linux environments
• Hands-on experience with Video4Linux (V4L2) for camera and image capture
• Knowledge of HID integration for input and output hardware
• Experience using PCSC for smart card communication, ideally with e-passports
• Practical experience with OpenCV for image processing and computer vision
• GUI development experience with GTK
• Strong debugging and profiling skills in Linux
• Familiarity with device drivers, USB interfaces, and low-level hardware interactions
• Comfortable using Git and build systems such as Make or CMake

Desirable Skills & Experience

• Previous experience developing software for passport readers, ID scanners, or similar embedded devices
• Knowledge of ICAO standards and e-passport technologies such as MRZ and RFID chip access