5G RAN L1/L2 Protocol Developer
About the job
- The candidate must have 6 to 10 years of experience in wireless telecommunications or networking, including hands-on LTE/5G NR Layer 1/Layer 2 protocol software development.
- A B.E., B.S., B.Tech., M.S., M.E., or M.Tech. in EC, EE, CS, or an equivalent degree is required.
- Hands-on experience with LTE/5G NR MAC schedulers and 3GPP Layer 1/Layer 2 is required.
- In-depth knowledge of 3GPP specifications, specifically Layer 1/Layer 2, is required.
- Understanding of Layer 1–Layer 2 and Layer 2–Layer 3 interfaces is required.
- Knowledge of networking protocols such as TCP/IP, UDP, and SCTP is required.
- Experience debugging complex gNodeB issues and analyzing log files is required.
- Proficiency in Agile development methodologies and experience working in Agile ways are required.
- Good coding skills in C and C++ are required; C++ is the target programming language, while Java and Python are used for testing.
- Experience using VS Code, Git, and Gerrit is required.
- Experience with Bazel build systems is required.
- Understanding of cloud concepts, including containers, Docker, Kubernetes, and cloud-native architectures, is required.
- Knowledge of CloudRAN implementations, including virtualized Distributed Units (vDU), RAN technologies, and connectivity protocols, is required.
- Proficiency with version control tools such as Git and Gerrit and project management tools such as Jira is required.
- Drive development and testing of various nodes of 5G NR protocol software.
- Develop high-technology solutions within the radio access network of the 5G mobile communication system.
- Contribute to product development, low-level design (LLD), feature development, and verification of gNodeB.
- Work with clients and cross-functional teams to carry out system integration and testing.
- Continuously improve system performance and deliver quality work.
- Work closely with other domain specialists.
- Document development processes and test outcomes comprehensively.
- Experience with cloud technologies such as microservices and containers is a merit.
About the company
Tieto provides mission-critical software and consulting services for various industries, organized into vertical software families: Tieto Caretech (care and health tech), Tieto Banktech (banking tech), Tieto Indtech (industrial tech) plus Tieto Tech Consulting. It helps customers run and improve their operations by delivering industry-specific software platforms, cloud services, data analytics and AI-powered solutions, complemented by design and software engineering expertise. Unlike more generic IT firms, Tieto focuses on deep, sector-specific capabilities and combines software products with consulting to support digital transformations. Its goal is to help customers succeed and innovate with the latest technology by making complex systems work together reliably and efficiently, backed by a team of about 13,000 specialists and EUR 2 billion in annual revenue.
Company Size
5,001-10,000
Company Stage
N/A
Total Funding
N/A
Headquarters
Helsinki, Finland
Founded
1968
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Simplify's Take
What believers are saying
- Q1 2026 adjusted EBITA margin rose to 14.7%, up 4.1 points year over year.
- Order backlog increased 8% and full-year 2026 outlook stayed unchanged.
- Leverage fell to 1.3x after BEKK divestment, enabling buybacks and investment.
What critics are saying
- Tech Consulting revenue fell 7% in Q1 2026, exposing weak discretionary demand.
- Tieto cut up to 500 employees after 800 Q1 reductions, signaling continued erosion.
- OpenSpring, Orange Business, and Microsoft partnerships intensify commoditization and margin pressure.
What makes Tieto unique
- Tieto Banktech and Caretech sell mission-critical Nordic vertical software, not generic IT labor.
- 2026 strategy targets European software leadership in selected industries with >5% CAGR.
- Banktech’s regulated banking platform deepens switching costs through core payments and lending systems.
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Benefits
Flexible Work Hours
Company News
Tieto Oyj reported Q1 2026 results showing a 3% revenue decline driven by legacy contract runoffs in Banktech and Caretech, though adjusted EBITA margin improved over 4 percentage points year-over-year to 14.7%. The Finnish IT services company's order backlog grew 8% year-over-year, whilst operating cash flow rose 9% on a comparable basis. The company achieved €105 million in run rate savings from its cost optimisation programme, targeting €130 million by year-end 2026. However, weak demand in Tech Consulting and geopolitical uncertainties impacted performance, prompting Tieto to announce an additional 500 employee reduction. Banktech profitability improved to 17.3% with underlying growth around 3%, whilst Caretech achieved a 26% margin. Leverage improved to 1.3x following the completion of the Bekk Consulting divestment, which contributed €147 million to free cash flow.