RF Hardware Engineer

Sine Engineering builds the technology behind reliable drone autonomy: communications, navigation, and control systems that enable coordinated multi-drone operations at scale. More than 200 UAV manufacturers rely on our technologies, and our solutions power many of the interceptor operations active today. Through our dual-use platform, we support civilian innovation while helping democratic nations strengthen their technological advantage. Any drone. Any scale. Anywhere. We build resilient communication, navigation, and coordination systems for the age of autonomy. We are looking for an RF Hardware Engineer to join our team and contribute to the design of high-frequency and mixed-signal electronic devices. You will be involved in the full development cycle — from schematic design to prototyping and manufacturing support. This is a great opportunity to work on cutting-edge technologies and build products that matter. You’ll collaborate closely with engineers based in Ukraine and should be eager to adopt established technical standards and methodologies from our core team. We are seeking professionals in Finland who aspire to go beyond product development and contribute to shaping the world of tomorrow. Key responsibilities - Schematic design of RF and mixed-signal electronic devices; - PCB layout design for high-frequency and mixed-signal systems; - Verification of designs through SPICE simulation, testing, and lab measurements; - Hands-on work with spectrum analyzers, VNAs, oscilloscopes, and other high-end measurement equipment; - Preparation and maintenance of technical documentation (schematics, BOMs, production files, test reports); - Support for prototype assembly and design transfer to manufacturing; - Collaboration with manufacturing partners to ensure DFM/DFT compliance. What we require To be successful in this role you should have: - Experience in high-speed design with knowledge of SI/PI principles; - Solid understanding of RF signal path design (e.g., transmit/receive chains, filters, matching networks); - Strong practical lab skills including test planning and signal analysis; - Experience with modern EDA tools (e.g., Altium Designer, KiCad); - Strong debugging and problem-solving capabilities; - Experience in device certification such as CE, FCC and RED; - Experience with Azure DevOps, Jira, or similar project management and requirements management tools; - Fluent written and spoken English. What we see as a plus - Experience working in a global work environment; - Understanding the principles of antenna design. Location Tampere (on-site), full-time, permanent position. What we offer Paid Time Off The Employee is entitled to an annual holiday 4 + 1 weeks from the first day. Health & Wellness Package - Lunch Benefit: daily lunch allowance up to the tax-free limit as a fringe benefit. - Sport & Culture: annual budget for gyms, sports activities, cultural events, and hobbies. - Wellbeing Allowance: additional allowance for massage, mental health services, and other wellness support. - Extended Occupational Healthcare: enhanced coverage including partial dental care. - Accident Insurance (24/7): full coverage for accidents during both work and free time. - Business Travel Insurance: coverage for work-related travel. - Snacks & Office Comforts: coffee, snacks, fruits and other office perks. Work Model - Flexible Working Hours: core hours from 10:00 to 15:00. - No-Crunch Policy: no systematic overtime; overtime is compensated or reimbursed. - Meeting-Light Culture: protected focus time and minimal unnecessary meetings. Growth & Innovation - High-End Equipment: premium laptop, monitor, and peripherals. - Lab & Gadget Budget: annual budget for hardware, tools, books, and learning materials. - Hackathons & Offsites: regular internal events focused on innovation and technology. Travel & Mobility - Business Travel Expenses: full coverage of tickets, accommodation, and transportation. - Per Diem (Vero Max): daily allowances according to the maximum tax-free Vero rates. Impact & Culture - Low-hierarchy, engineering-driven environment with strong autonomy and zero micromanagement. Culture Statement Don’t meet every requirement? Research shows that many candidates hesitate to apply unless they meet every qualification. At Sine Engineering, we value authenticity and encourage you to apply even if your experience doesn’t perfectly match every listed requirement. You might be the ideal candidate for this role—or for another opportunity with us. Join our dynamic team and play a key role in shaping the future of UAV technology. Privacy Notice By applying for this position, you consent to the processing of your personal data for recruitment purposes. Your data will be handled in accordance with the EU General Data Protection Regulation (GDPR) and the Finnish Act on the Protection of Privacy in Working Life. We will retain your application data for up to 2 years, unless you consent to a longer retention period. You may request access, correction, or deletion of your data at any time by contacting privacy@sineeng.com.