Senior C developer (Enterprise Fusion)

📍 Finland (Espoo – Helsinki area) | Hybrid (in-person presence encouraged)

Tuxera is a leading provider of quality-assured storage software and networking technologies. We work at the cutting edge of performance and reliability, helping customers in the automotive, industrial, enterprise, and consumer electronics sectors make their data move faster and safer.

We are looking for a Senior Software Engineer (C, Networking) to join our Enterprise Fusion team. In this role, you will contribute to the design and implementation of high-performance networking software used by top-tier enterprise customers worldwide. As a senior member of the team, you’ll take ownership of key components, drive architecture decisions, and mentor junior developers.

This position is ideal for engineers who enjoy solving deep technical challenges and delivering production-quality code in collaboration with a world-class team.

Tasks and responsibilities:

• Design, implement, and evolve user-space applications in C for our Tuxera Fusion products.
  
• Take architectural ownership of key networking features and protocol components.
• Define and deliver product capabilities in close collaboration with the Product Manager.
• Drive technical direction and contribute to roadmap planning with a strong voice.
• Collaborate cross-functionally with QA, DevOps, and support teams to ensure product robustness and customer satisfaction.
• Review code and mentor team members in best practices and performance-conscious development.
  

Background and Qualifications:

You are a hands-on software engineer with a strong foundation in C and a deep understanding of Linux networking. You are comfortable with complex systems and eager to take initiative in driving improvements and new development.

You should have:

• 8+ years of professional experience in systems-level software development, including extensive hands-on experience in C.
• Deep knowledge of Linux user-space programming, Libc, and POSIX APIs.
• Proven experience with networking protocols, packet handling, and performance tuning.
• Familiarity with or prior work on SMB, NFS, or other file-sharing/network protocols is a strong plus.
• Strong grasp of network architecture and core protocols like TCP/IP, UDP, DNS, Kerberos, LDAP, DHCP, ARP, and Active Directory.
• Experience working with CI/CD, containerized environments (Docker, Kubernetes), and automated build systems.
• Ability to collaborate effectively and communicate clearly with both technical and non-technical stakeholders.
• Solid understanding of agile development processes and team workflows.

Experience in the following areas will be considered an advantage:

• Kernel-space development.
• Scripting for test automation and build environments (e.g., Python, Bash).
• Cloud platform experience (AWS, Azure, GCP).
• Leading small teams or mentoring engineers.
  

📍 We operate in hybrid mode, but we encourage regular in-person collaboration
at our Espoo office to stay connected and spark innovation.

Why Tuxera?

At Tuxera, you’ll work in a collaborative environment with a strong emphasis on quality, ownership, and team success. We support professional growth through peer learning, innovation, and a culture that values deep technical expertise.

Ready to take the next step in your engineering career? Apply now and join us in building world-class networking software.