Senior Software Engineer, C (L1 -Telco) - Tieto Tech Consulting (m/f/d)

Tieto; Warszawa; Hybrid; PLN 212,314 - 297,239; Full time

Benefits offered by this job

Private medical coverage

Group life insurance

Career development opportunities

Flexible hybrid work model

Job summary

Tieto is looking for a Senior Software Engineer - L1 Domain Expert in Warsaw, Poland. You will design innovative solutions for 5G infrastructure, collaborating with global experts in modern telecommunications.

The role offers a hybrid work model and attractive benefits, including private medical coverage and career development opportunities. Join us if you’re passionate about coding and want to grow in a supportive environment.

Qualifications

• Wide knowledge related to telecommunications.
• Experience with L1 domain in 5G/4G RAC systems.
• Advanced C programming skills with industry experience.

Responsibilities

• Design and implement features in next-generation 5G technologies.
• Ensure architecture and code quality.
• Support others with technical coaching.

Skills

Telecommunications knowledge

C programming

Linux platform experience

Network debugging

Git

Tools

Jira

Jenkins

Job description

Senior Software Engineer – L1 Domain Expert

We are looking for a talented C developer passionate about designing code for 5G infrastructure for commercial projects. You will develop innovative solutions and cooperate with a multi‑site international network of experts working on modern telecommunication systems for world telecom vendors.

We care about a friendly, positive, supportive atmosphere and work‑life balance. We believe in a truly open environment that encourages freedom and creativity.

If you feel you want to develop your career with a group of positive and open‑minded people, join us!

Responsibilities

• Design and implementation of features in next‑generation 5G telecommunication technologies (L1 domain)
• Secure long‑term product quality and ensure architecture and code structure
• Build competence and support others with technical coaching

Qualifications

• Wide knowledge related to telecommunications in general
• Experience and knowledge of L1 domain in 5G/4G RAC system
• Advanced C programming skills with proven industry experience (assembler would be beneficial)
• Experience programming on Linux platform
• Experience debugging network issues/user‑space programs and troubleshooting system issues
• Ability to solve SW/HW interoperability problems
• Maintenance – analyzing logs, tracking bugs, searching for memory leaks
• SW design and documentation
• Knowledge of Git, Jira, Jenkins
• Good English

Desired Attributes

• Interested in solving complex problems
• Detail‑oriented
• Eager to learn
• Patient and determined
• Communicative

Good to Have

• Experience with SW build tools and versioning
• Experience in model‑driven development
• Ability to work in an agile cross‑functional team

Benefits

• Participation in interesting and stable projects (both local and international)
• Opportunity to work with experts in the field
• Career development possibilities
• Private medical coverage
• Group life insurance
• Investment fund
• MyBenefit System

We also offer professional growth, meaningful projects, an open culture, and an outstanding work‑life balance. We provide a flexible hybrid work model and encourage curiosity and continuous learning.

Information about the salary range and the criteria used to determine remuneration will be shared with candidates prior to the interview process and confirmed before an offer is made.

Equal Opportunity Employer

At Tieto, we believe in the power of diversity, equity, and inclusion. We encourage applicants of all backgrounds, genders (m/f/d), and walks of life to join our team, as we believe that this fosters an inspiring workplace and fuels innovation. Our commitment to openness, trust, and diversity is at the heart of our mission to create digital futures that benefit businesses, societies, and humanity.