Forward Deployed Engineer

TechTree; Warszawa; On-site; PLN 306,000 - 481,000; Full time

Job summary

TechTree is recruiting for a Forward Deployed Engineer to deploy AI prototypes directly with customers in the field. The role targets a European defence startup operating in Paris or Warsaw, on-site.

You’ll work closely with the founders to iterate deployments of prototypes with early customers, engaging with bespoke audio streaming tech and real-time voice systems. EU citizenship is required, and fluency in English plus French or Polish is preferred.

Qualifications

• Pragmatic, product-minded software engineering generalist with strong execution skills.
• Desire to build from zero and thrive in ambiguous, fast-moving environments.
• Can explain complex technical systems in simple ways.
• Speaks French or Polish, and English
• EU citizenship required

Responsibilities

• Deploy AI prototypes directly with customers in the field.
• Iterate deployments of prototypes with early customers and get hands-on with audio streaming tech and real-time voice systems.
• Collaborate with founders to drive quick, practical deployments at customer sites.

Skills

Software engineering

System design

Technical communication

Multilingual

Job description

This is a role that TechTree is recruiting for on behalf of one of our clients. TechTree is an AI-driven recruitment platform working with high-growth companies.

When you apply, our AI Agent matches you not just to this role, but to other relevant opportunities across our network, so one application can unlock multiple roles.

Forward Deployed Engineer — Deploy AI prototypes directly with customers in the field. European defence startup. Paris or Warsaw, on-site.

A European defence startup based between Paris and Warsaw is building modern software tailored for hostile environments. Customers include European military and police units. Backed by Europe’s leading defence VC and angels including founders of Cloudflare, Quantum Systems, and ElevenLabs. Founding team: two early Cloudflare employees and a former GIGN commander. No weapons systems. No hardware.

You’ll work closely with the founders to iterate quickly on deployments of prototypes with early customers — getting hands-on with bespoke audio streaming tech and real-time voice systems.

What We're Looking For

• Pragmatic, product-minded software engineering generalist with strong execution skills
• Desire to build from zero and thrive in ambiguous, fast-moving environments
• Can explain complex technical systems in simple ways
• Speaks French or Polish, and English
• EU citizenship required

Bonus

• Worked with LLMs, or built pipelines
• Comfortable with audio processing and low-latency systems
• Experience in on-prem environments
• Implemented AI systems in resource-constrained environments
• Experience working with armed forces

Location: Paris or Warsaw, on-site (relocation support available)

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Our AI Agent gets to know your background, experience, and what you’re optimising for. It continuously matches you to live roles across our network where there’s genuine alignment, not just keyword overlap.

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