The posting
Within our Power & Industrial Division, we are looking for two Product Developers / Project Engineers based in Spain who want to play an active role in shaping technically robust, customer-focused solutions with real environmental impact.
We are offering two exciting opportunities within our Engineering team:
- One permanent position, offering the opportunity to build a long-term career with AAF International.
- One temporary position, covering maternity leave for an expected period of approximately 6 months.
Both positions offer the opportunity to contribute to meaningful engineering projects, collaborate with international teams and make a real impact in a dynamic industrial environment.
Who We Are
For more than a century, AAF International has been protecting something essential: the air we breathe. Since 1921, we have led the development of air filtration solutions that support cleaner, safer and more efficient industrial and energy environments.
Today, we operate in 22 countries with over 3,000 people driven by a shared purpose: delivering clean air where it matters most.
Within our Power & Industrial Division, we are now looking for a Product Developer / Project Engineer based in Spain who wants to play an active role in shaping technically robust, customer-focused solutions with real environmental impact.
Your Role & Impact
As a Product Developer / Project Engineer, you will be a key technical partner throughout the full project lifecycle — from bidding and concept definition to product development and industrialisation.
You will connect customers, engineering, operations, supply chain, product management and sales, ensuring solutions are not only technically sound, but also competitive, compliant and aligned with business goals.
This is a role for someone who enjoys ownership, cross-functional collaboration and turning complex requirements into practical, high-quality solutions.
What You Will Be Responsible For
Engineering & Project Execution
- Deliver engineering activities on time and with high technical quality (calculations, functional descriptions, drawing reviews, documentation).
- Ensure compliance with internal standards, contractual requirements and applicable regulations.
- Maintain continuous communication with customers and take responsibility for the engineering phase of assigned projects, coordinating the necessary human and material resources to ensure successful delivery in terms of quality, cost, and schedule.
- Collaborate with suppliers on all technical aspects required for project execution
Product Development
- Define technical specifications and develop conceptual designs.
- Perform engineering calculations and simulations to validate feasibility and performance.
- Lead prototyping and testing activities, driving continuous design improvement.
- Collaborate with manufacturing to define efficient production processes and optimise costs.
- Prepare technical documentation, specifications and certification dossiers.
- Support product launches and provide technical expertise to internal and external stakeholders.
Sales & Customer Support
- Work closely with Sales teams during the bidding phase to clarify and validate technical requirements.
- Translate customer needs into achievable, competitive technical solutions.
- Prepare technical and commercial quotations and follow them through to the successful award of projects and purchase orders.
- Visit customers to conduct technical and commercial negotiations.
- Perform site visits to customer facilities to assess requirements and develop tailored system designs.
- Provide technical support and guidance to the sales team throughout the quotation and opportunity management process.
- Liaise with suppliers on all technical matters related to quotations and business opportunities
Standards & Contract Documentation
- Apply AAF standard procedures to meet both customer expectations and internal requirements.
- Prepare technical contract documentation, including clarifications, deviations and exceptions.
What We Are Looking For
- Degree in Engineering or a related technical discipline.
- 3–5 years of experience as a Product Developer or Project Engineer in an industrial or engineering environment.
- Solid understanding of engineering principles and methodologies.
- Ability to influence, communicate and collaborate across functions.
- Advanced English (C1-B2) and Spanish required; additional languages are an advantage.
What We Offer
- Professional Growth: access to a 24/7 online learning platform and opportunities to grow within an international organisation.
- Flexibility & Trust: flexible working hours (Monday–Thursday), shorter Fridays, and the choice to have lunch at home or in our company canteen.
- Work–Life Balance: policies designed to support sustainable performance over time.
- International & Purpose-Driven Environment: work in a multinational company with a strong commitment to environmental responsibility.
- Open Culture: your ideas and expertise contribute directly to how we evolve as a business.
Ready to Make an Impact?
Whether you are looking for a long-term career opportunity or an exciting short-term professional experience, we would love to hear from you.
Join AAF International and become part of a team that believes in the power of people to transform the air — and the future.
