Senior Embedded Software Engineer

Holisticon Connect is a division within NEXER GROUP - a custom software development company. We started in Poland in 2017 and are now a team of over 140 people with offices in Wrocław, Warsaw, and Cracow. We have the opportunity to work with world-renowned brands from Scandinavia, the UK, and Western Europe. Our goal is to grow stronger, in competence rather than in numbers. If you like what we do, check out our offer, maybe we will have the pleasure of meeting you! 😊

We are looking for experienced and communicative Embedded Software Engineer to join our Platform Team, specializing in the development and maintenance of our OpenWRT-based SDK for Residential Gateways. In this role, you will collaborate with a team of experts, designing and implementing foundational components critical to device operation and management.

Key Responsibilities:

• Development and customization of the OpenWRT-based SDK;
• Design, implementation, and debugging of bootloaders and secure boot processes;
• Managing flash layouts, partitioning schemes, and firmware upgrade mechanisms;
• Integration and development of device drivers for networking and peripheral interfaces;
• Implementation of firmware management strategies, including robust OTA (Over-The-Air) updates;
• Development with a focus on security, resilience, and long-term maintainability;
• Close collaboration with hardware, system test, and higher-layer software teams.

We offer a choice of employment form:

B2B or Employment Contract:

• UoP: 17 000 – 20 000 PLN gross/month;
• B2B: 130 – 150 PLN net/hour + VAT.

You might be the perfect match if you have:

• At least 5 years of professional experience in embedded software development;
• Strong proficiency in C programming for embedded systems;
• Hands-on experience with OpenWRT and Linux system internals;
• Deep understanding of bootloaders (e.g., U-Boot) and secure boot technologies;
• Experience with firmware upgrade mechanisms (dual partitioning, A/B upgrades, recovery modes);
• Expertise in device driver development and hardware bring-up;
• Good grasp of embedded security concepts (e.g., secure storage, trusted boot chains);
• Familiarity with debugging tools (e.g., JTAG, serial consoles, gdb) and hardware interfaces;
• Excellent communication skills and a friendly, collaborative attitude;
• Strong problem-solving skills and the ability to work independently;
• Fluency in English at C1 level (both spoken and written).
• For formal reasons related to our cooperation model, we require candidates to be based in Poland.

Nice to have:

• Experience with ARM-based SoCs (Qualcomm, MediaTek, Airoha, etc.);
• Understanding of manufacturing processes for flashing and testing;
• Exposure to Yocto Project, Buildroot, or other embedded build systems (in addition to OpenWRT).

If you are an experienced, open-minded engineer who enjoys working in a team-oriented environment – let’s talk!

By joining us, you gain the following:

• Opportunity to work on exciting, international projects in cutting-edge industries like Automotive, Biotech, IoT;
• Possibility to develop in cloud technologies. We are a certified AWS partner;
• Becoming part of a team that believes that the next step to a promising future is to put your heart into it and make it happen;
• Respect for your private life so you don't have to work overtime or on weekends;
• Team Events budget to socialize outside of work;
• Company Events to celebrate smaller and bigger successes (Summer Party, Programmer's Day, and trips abroad – so far we've been in Cape Town, Are, and Barcelona).

Perks and benefits:

• Fully remote work or in our office in Wrocław, Warsaw or Cracow;
• Free benefits such as Luxmed, Multisport, and life insurance in Nationale Nederlanden;
• Attractive referral system (9,5k for senior, 6k for mid, 2,5k for junior);
• Personal Training Budget with additional paid hours;
• Passion Day - an extra day off for your hobby to spend as you please;
• Flexible working hours with no micro-management approach. Our core hours are 9-15, the rest of the working time is up to you;
• We provide high-quality work equipment + 2 additional monitors and accessories.

If you apply for this position and match our expectations, then:

1) You will be invited to an HR Screening with our IT Recruiter.

2) You will have a technical interview.

3) You will meet with a client.

Submit your application online in one easy step! Apply now!