Senior Embedded Developer (f/m/x)
Offer summary

(Summary generated by AI based on the full job description)

The project focuses on software development for IoT product controllers within an Embedded Competence Center. Key stack includes C, Makefile/CMake, MBEDTLS/RSA, Google Test (C++), Python/Pytest and SCRUM/JIRA with Confluence. Responsibilities cover firmware and bootloader development, implementing Secure Boot and side-channel attack protections, basic audio/video algorithms, developing unit and automation tests, maintaining build systems and collaborating with multiple product teams during three-week sprints.

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Senior Embedded Developer (f/m/x)

Company: Sii Sp. z o.o.

from: 29 September 2026
to: 29 October 2026
salary not specifiedB2B contract
Offer parameters
level:senior
working mode:hybrid • full office
Gdańsk, Oliwa
Gdańsk, Oliwaaleja Grunwaldzka 472eView on map

Requirements

Expected technologies

Embedded C
Firmware Development
STM32
RTOS
Secure Boot
Python
CMake

Optional technologies

Bootloader

Our requirements

  • Ability to work from the client's office 2 days a week (hybrid model)
  • Min. 5 years of experience as an Embedded Developer
  • Proficiency in C for embedded systems development
  • Experience in reviewing complex systems design/code for security best practices and compliance with industry standards
  • Fluency in Polish and English
  • Excellent written and verbal communication skills with the ability to convey technical information to a wide variety of audiences
  • Strong creative problem-solving abilities and decision-making skills
  • Residency in Poland

Optional

  • Experience in creating bootloaders for various hardware architectures
  • Knowledge and experience with cryptography and computer security
  • Strong knowledge of RISC-V architecture and GCC compiler

Your responsibilities

  • Worked from the client’s office 2 days per week
  • Development of middleware firmware for the whole platform of products in the C language
  • Development of bootloaders for a wide range of products
  • Implementation of basic audio/video processing algorithms for the reference application
  • Implementation of Secure Boot (MBEDTLS, RSA, PK, asymmetric encryption)
  • Implementing security measures (side-channel attacks prevention)
  • Development of unit tests (C++, Google Test)
  • Development of automation test (Python, Pytest)
  • Maintenance and development of build systems (Makefile, CMake)
  • Writing proposals and documentation (Confluence)
  • Collaboration with multiple product teams and providing quick support
  • Working in a fast-paced SCRUM environment with frequent 3-week sprints followed by releases (JIRA)
Company

About the project

We are seeking a Senior Embedded Developer to join a project focused on software development for IoT product controllers.
By joining us, you become a member of the Embedded Competence Center at Sii - an internal organizational unit bringing together more than 500 specialists across Poland! We are currently working on approximately 100 projects for 50 clients across various industries, including automotive, IoT, telecommunications, and medical. We focus on development and knowledge exchange by organizing Embedded Academies, training, technical mentoring or enabling project changes.

What we offer

  • Great Place to Work since 2015 - it’s thanks to feedback from our workers that we get this special title and constantly implement new ideas
  • Employment stability - revenue of PLN 2.1BN, no debts, since 2006 on the market
  • We share the profit with Workers - over PLN 76M has already been allocated for this aim since 2022
  • Attractive benefits package - private healthcare, benefits cafeteria platform, car discounts and more
  • Comfortable workplace – class A offices or remote work
  • Dozens of fascinating projects for prestigious brands from all over the world – you can change them thanks to Job Changer application
  • PLN 1 000 000 per year for your ideas - with this amount, we support the passions and voluntary actions of our workers
  • Investment in your growth – meetups, webinars, training platform and technology blog – you choose
  • Fantastic atmosphere created by all Sii Power People

Recruitment stages

  • 1.
    Send your CV
  • 2.
    Talk to us about your expectations
  • 3.
    Learn more about our projects and choose the best
  • 4.
    Start your adventure with Sii!

Sii Sp. z o.o.

Sii is the leading technology consulting, digital transformation, engineering, and business services vendor in Poland. We already employ more than 7 300 professionals and implement projects in a variety of industries for clients from many countries around the world. The Great Place to Work title, won 10 times in a row, proves that at Sii, we create a friendly work environment.
Sii ensures that all employment-related decisions are made solely on the basis of qualifications and competencies. We are committed to equal treatment of all individuals, regardless of any protected characteristics, and promoting a diverse and inclusive work environment.

This is how we work

Senior Embedded Developer (f/m/x)
I apply to:
Sii Sp. z o.o.
Gdańsk, Oliwa
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