Technical Sales Engineer – 5G & 6G

Blackshark; Warszawa; Hybrid; PLN 180,000 - 240,000; Full time

Benefits offered by this job

Competitive package

Equity opportunity

Strategic influence

Real-world impact

Global reach

Hybrid work model

Job summary

IS-Wireless is seeking a seasoned technical sales engineer to drive pre-sales engagements for 4G/5G and private network solutions across enterprise clients.

You will define solution architectures, run technical presentations and workshops, and support RFx responses. You’ll collaborate with CRO, CTO and product teams to align customer needs with product direction in an international environment. Fluent English is required.

Qualifications

• Experience in technical sales, pre-sales, solution engineering or sales engineering in B2B / enterprise environments.
• Strong knowledge of mobile networks and hands-on exposure to 4G / 5G, RAN or private network solutions.
• Ability to explain technical topics clearly to both engineering teams and decision-makers.
• Understanding of Open RAN concepts such as virtualization, open interfaces and disaggregated architecture.
• Fluent English and readiness to work in an international environment.

Responsibilities

• Act as a trusted technical advisor for customers during the sales process.
• Lead technical presentations, workshops and solution discussions with business and engineering stakeholders.
• Support RFI, RFQ and RFP responses with strong technical input.
• Define solution architecture and system configuration early in the sales cycle.
• Work closely with the CRO, CTO and product teams to align customer needs with product direction.

Skills

Technical sales

Mobile networks

Explain technical topics

Open RAN concepts

Fluent English

Job description

Why this role matters

At IS-Wireless, we're building some of the most advanced 5G/6G networks in Europe. This isn't just theoretical - it's about real-world deployments, with actual clients, in demanding environments, including the defense sector.

Your mission

• 
  

  Act as a trusted technical advisor for customers during the sales process.

  
  


• 
  

  Lead technical presentations, workshops and solution discussions with business and engineering stakeholders.

  
  


• 
  

  Support RFI, RFQ and RFP responses with strong technical input.

  
  


• 
  

  Define solution architecture and system configuration early in the sales cycle.

  
  


• 
  

  Work closely with the CRO, CTO and product teams to align customer needs with product direction.

  
  

Skills & Experience (Must-Have)

• 
  

  Experience in technical sales, pre-sales, solution engineering or sales engineering in B2B / enterprise environments.

  
  


• 
  

  Strong knowledge of mobile networks and hands-on exposure to 4G / 5G, RAN or private network solutions.

  
  


• 
  

  Ability to explain technical topics clearly to both engineering teams and decision-makers.

  
  


• 
  

  Understanding of Open RAN concepts such as virtualization, open interfaces and disaggregated architecture.

  
  


• 
  

  Fluent English and readiness to work in an international environment.

  
  

Nice-to-Have

• 
  

  Experience with Advanced Mobile Solutions architecture, including Radio Units, Distributed Units, Centralized Units, or Service Management and Orchestration.

  
  


• 
  

  Experience with private 5G deployments.

  
  


• 
  

  Familiarity with network infrastructure such as servers, routers and switches.

  
  


• 
  

  Knowledge of vendors and technologies such as Cisco, Arista, HPE or Juniper.

  
  


• 
  

  Exposure to defence, public sector or other highly regulated environments.

  
  

What We Offer

• Competitive Package: A salary reflecting your seniority and impact, plus an attractive commission system.




• Equity Opportunity: Eligibility for a stock option plan based on long-term commitment, loyalty, and exceptional performance.




• Strategic Influence: A seat at the table where key technical and commercial decisions are made.




• Real-World Impact: Your work directly supports the deployment of ultra-resilient 5G networks in critical and demanding environments.




• Global Reach: Opportunity to lead projects across three continents and collaborate with a world-class team of domain experts.




• Flexibility: A hybrid work model designed for high-performance leaders, adjusted to project and business needs.