C Developer Embedded System

Job Title: C Developer Embedded Systems (RTOS, LVGL, Payments Domain)

Location:

Employment Type:

Experience Required:

Industry:

C Developer

embedded systems development

hands-on experience working with RTOS (UCOS-II)

LVGL for GUI development

payment domain

MQTT.

Key Responsibilities:

• Develop and maintain embedded applications in C for payment terminals and related devices.
• Work extensively with 

  UCOS-II RTOS

  , including task scheduling, inter-process communication, and real-time system performance.
• Design and implement 

  GUI interfaces using LVGL library

   in resource-constrained environments.
• Integrate and maintain communication protocols, especially 

  MQTT

  , for device communication and cloud sync.
• Handle terminal-level operations including 

  deployment, firmware updates, device provisioning

  , and 

  secure code signing

  .
• Debug, test, and validate code in live environments ensuring compliance with 

  payment security standards

   (PCI DSS, EMVCo, etc.).
• Collaborate with QA, security, and hardware teams to ensure seamless integration and high system reliability.
• Create and maintain technical documentation and deployment guides.

Required Skills and Qualifications:

• Strong proficiency in 

  C programming language

  , especially in embedded environments.
• Minimum 

  6 years of experience working with RTOS (UCOS-II preferred)

  .
• Proven experience with 

  LVGL

   for building modern and responsive user interfaces on embedded platforms.
• Solid experience in 

  payment terminal applications

  , or POS systems.
• Hands-on knowledge of 

  terminal handling, remote deployment

  , and device lifecycle management.
• Familiarity with 

  secure code signing

  , encryption techniques, and debugging tools for embedded systems.
• Experience working with 

  MQTT protocol

   for lightweight messaging and communication.
• Familiar with 

  version control systems

   like Git, and basic CI/CD workflows.
• Strong analytical and problem-solving skills.

Preferred Qualifications:

• Experience with 

  EMV, NFC, or contactless payment technologies

  .
• Knowledge of 

  Linux kernel-level programming

   or other RTOS platforms.
• Experience in 

  device certification processes

   for financial terminals.