Senior Mechanical Designer, Safera Oy, Espoo

Safera Oy; Espoo; On-site; EUR 50,000 - 67,000; Full time

Benefits offered by this job

Commission

Permanent employment

Full-time

Job summary

Safera Oy in Espoo is seeking a Senior Mechanical Designer to lead mechanical design for innovative electronic devices and optical sensor systems. You will transform concepts into mass‑manufacturable products and work with cross‑functional teams in a compact, dynamic environment.

You will own end‑to‑end mechanical engineering, design injection‑molded components, integrate optics, sensors and LEDs, and apply thermal management simulations to ensure reliability.

Qualifications

• Advanced knowledge of injection-molded plastic design for small, complex products.
• Good understanding of fluid dynamics (CFD) and airflow simulation.
• Strong capability for self-coordination and taking full ownership of projects.
• Professional working proficiency in English.

Responsibilities

• End-to-end mechanical engineering from initial concept design to final production support.
• Designing small, highly complex injection-molded plastic components.
• Integrating optics, sensors, and LEDs into compact device frames.
• Utilizing airflow and thermal management simulations to optimize product performance and reliability.
• Taking full ownership of the mechanical design department and self-coordinating your daily work.

Skills

Injection-molded design

CFD & airflow simulations

Self-coordination

English proficiency

Job description

Senior Mechanical Designer, Safera Oy, Espoo

Academic Work Finland Oy

In this role, you will lead and execute mechanical design for innovative electronic devices and optical sensor systems. You will play a central role in transforming concepts into reliable, mass-manufacturable products, working closely with cross-functional teams in a compact, dynamic environment.

• Full Ownership & Impact: A key role with total responsibility for the mechanical design department, giving you the freedom to shape engineering processes and influence final product outcomes.
• Agile & Collaborative Environment: A startup-like company culture with small teams, flat hierarchy, and minimal bureaucracy, where your initiative and ideas are valued.
• Diverse & Modern Tech Challenges: Opportunities to work on cutting-edge products combining precision mechanics, optical sensors, LEDs, and advanced airflow/thermal management.

In this role, you will lead and execute mechanical design for innovative electronic devices and optical sensor systems. You will play a central role in transforming concepts into reliable, mass-manufacturable products, working closely with cross-functional teams in a compact, dynamic environment.

• End-to-end mechanical engineering from initial concept design to final production support
• Designing small, highly complex injection-molded plastic components
• Integrating optics, sensors, and LEDs into compact device frames
• Utilizing airflow and thermal management simulations to optimize product performance and reliability
• Taking full ownership of the mechanical design department and self-coordinating your daily work

We are looking for

• Advanced knowledge of injection-molded plastic design for small, complex products
• Good understanding of fluid dynamics (CFD) and airflow simulation
• Strong capability for self-coordination and taking full ownership of projects
• Professional working proficiency in English

It is meritorious if you have

• Knowledge of optics design, particularly lenses, reflectors, or thermal imaging
• Experience designing consumer electronics, wearables, or laboratory devices
• Proficiency in Finnish

To succeed in the role, your personal skills are:

• Stress tolerant
• Orderly
• Responsible
• Assertive
• Intellectually curious
• Respectful

Our selection process is continuous and the advert may close before the recruitment process is completed if we have moved forward to the next phase. The process includes two tests: one personality test and one cognitive test. The tests are tools to find the right talent for the right position, to enable equality, diversity, and a fair process.

Safera Oy is an innovative technology company specializing in smart sensors, fire safety, intelligent ventilation, and air quality monitoring. With an agile, startup-like culture and a rapidly expanding R&D team, Safera offers a collaborative environment where passionate experts build high-end tech from the ground up.

• Commission
• Permanent
• Full-time
• Finnish

Monthly salary