Job Description

About the Role

We are looking for a Mechanical Architect to support the development of next-generation defence systems through system-level mechanical design and engineering delivery. In this role, you will help mature mechanical concepts, interfaces and requirements, working closely with multidisciplinary teams to deliver robust, producible and high-performance defence products.

At Frankenburg, you will join an exceptional team of leading experts in technology and national defence, building next-generation defence missile systems for the free world. You will work in a fast-paced environment where your contribution shapes how we develop, industrialise and deliver advanced defence systems. If you thrive on innovation, ownership and impact — we want to hear from you.

Key Responsibilities

• System-Level Mechanical Design
• Develop and evaluate mechanical concepts at system and subsystem level, supporting the definition of product architecture, mechanical interfaces, constraints and requirements.
• Trade Studies & Technical Decision-Making
• Support trade studies, design reviews and engineering decisions across the product lifecycle, helping teams balance performance, mass, manufacturability, reliability, safety and cost.
• Design Delivery
• Lead and deliver mechanical design work packages from concept generation through detailed design to final delivery, ensuring timely progress in a demanding development environment.
• Production Readiness
• Apply robust design methods and practical engineering judgement to improve product quality, manufacturability and readiness for scalable production.
• Supplier & Partner Engagement
• Work with suppliers, external partners and internal teams to develop practical, scalable engineering solutions.
• Risk, Documentation & Traceability
• Identify technical risks, manage priorities, support rapid problem-solving, and maintain clear records of assumptions, requirements, decisions and design maturity in line with industry best practice.

We Would Love You to Have

• Educational Background
• Higher degree in Mechanical Engineering, Aerospace Engineering or a related discipline.
• Experience
• 5+ years of experience delivering mechanical design work packages within complex, multidisciplinary engineering programmes, preferably in aerospace, UAV, space or defence applications.
• Technical Skills
• Confident use of 3D CAD and engineering design tools, with strong experience across the full product lifecycle. Understanding of structural, thermal and/or dynamic behaviour is advantageous.
• Soft Skills
• Proactive, solution-oriented mindset with excellent communication skills. Delivery-focused, with the ability to manage multiple priorities and meet strict deadlines. Experience mentoring engineers.
• Mission Alignment
• Strong alignment with our mission to build affordable and mass-manufacturable defence technologies — ensuring every euro spent moves us closer to our goal.
• Security Clearance
• Willingness to undergo a background check as a condition of employment.
• Open to Travel or Relocate
• Willingness to travel occasionally within Europe as required by the role, and ideally openness to relocating to Tallinn.

Our Values

Our mission is ambitious, and it takes a team that works with the same intensity.

• Own the Mission: Mission first. Always.
• We choose impact — we focus on what moves the mission forward fastest instead of “nice-to-haves". We fix it now — when delays or problems appear, we step up, rally the right people, and solve them immediately. We keep momentum — when time matters, we stay focused and move forward without waiting for perfect conditions.
• Strive for More: Dare more. Do more. Achieve the impossible.
• We challenge the status quo — we question, test, and improve instead of accepting “the usual way.” We embrace discomfort — we step outside comfort zones and turn challenges into growth. We anticipate the future — we build solutions that scale and set higher standards each time.
• Build with Trust: Be open. Keep promises.
• We walk the talk — what we say, we do. No excuses, no exceptions. We share openly — we communicate clearly and early, even when the news is hard. We own outcomes — we admit errors quickly, fix them, and prevent them from repeating.

Ready to Make a Real Impact?

Apply now! The application deadline is November 30, 2026, but we review applications and contact suitable candidates on a rolling basis.

We may close the position earlier if we find the right candidate, so we encourage you to apply as soon as possible.