Technologist- Product Engineer

Location: Sofia, Bulgaria

About us

We are EnduroSat! A fast-growing space scale-up at the forefront of satellite innovation, specializing in advanced software-flexible satellites for commercial, governmental, and scientific endeavors.

• This is more than a job, it`s a mission

  We are making space universally accessible and redefining the possible

• We get things done

  We take ownership of what we do and we work hard to make a difference

• We are fearless

  Transpаrancy is our only way forward. We dare to address and resolve issues head-on

• We learn from our mistakes

  We deliver, take informed risks, and evolve to achieve our goals. We compare with the best version of ourselves

What is the role?

As Process Engineer you will actively participate in the PCB design process, providing expert feedback on layout, component selection and other factors that impact manufacturability. You will plan, implement, commission, operate, maintain, and continuously optimize the systems that power our manufacturing, working closely with suppliers, system integrators, and internal stakeholders. Your work will ensure safe, reliable, and efficient operations, enabling high-quality and scalable satellite production.

Some of your daily tasks will include:

• Actively participate in the PCB design process, providing expert feedback on layout, component selection and other factors that impact manufacturability.
• Run formal DFM reviews; deliver redlines and risk-ranked actions covering:
  • Land pattern compliance (IPC 7351), BGA/LGA/QFN/BTC rules, NSMD vs SMD pads.
  • Via strategy (via-in-pad fill/cap per IPC 4761, thermal via arrays), microvia/HBI reliability.
  • Solder mask and legend clearances, paste mask optimizations, step-stencil needs.
  • Assembly keep-outs, AOI/AXI accessibility, fiducials (global/local), tooling holes, panelization/rails/breakaways.
  • Copper balance, thermal reliefs, warpage control, component spacing for placement/rework.
• Work closely with design engineers, manufacturing partners and quality assurance teams to resolve design and manufacturing challenges.
• Ensure that all PCB assembly processes and products adhere to the highest industry standards for space applications, including IPC-A-610 Class 3.
• Create and maintain comprehensive process and DFM documentation.
• Collaborate with external manufacturing partners to ensure they meet EnduroSat's quality and technical requirements.
• Identify opportunities for continuous improvement in the PCB assembly process to enhance efficiency, reduce costs and improve product reliability.
• Actively participate in root cause analysis of manufacturing defects and implement effective corrective and preventive actions.

What do we look for?

• Bachelor’s degree in electrical engineering, manufacturing engineering or related field.
• Minimum 5 years hands-on PCB assembly manufacturing experience (SMT and TH) with complex, high‑reliability boards (HDI, fine‑pitch BGA/QFN/BTC).
• Proven DFM leadership from schematic through release; strong PCB layout review skills (clearance, impedance, stackup, land patterns).
• In-depth knowledge of SMT and through-hole assembly processes and equipment.
• Strong command of IPC standards: IPC‑A‑610 Class 3, IPC‑A‑600 Class 3, J‑STD‑001 (Space Addendum). Working knowledge of IPC‑7351, IPC‑2221/2222, IPC‑6012/6013, IPC‑7093/7095.
• Familiarity with materials and processes used in high-reliability electronics for harsh environments.
• Rigid flex and microvia/HDI reliability, via in pad filled/capped, stacked microvias.
• Boundary scan/JTAG and ICT fixture development; functional test integration.
• Conformal coat processes (urethane/silicone/parylene), staking/underfill selection.
• Experience with CAD tools for PCB layout review.
• Excellent problem-solving and analytical skills.
• Strong communication and interpersonal skills

Why EnduroSat?

• Fast-paced and delivery-focused culture

  We work with well-defined quarterly based objectives, that allow us to fast-track the progression of our work and improve as we go

• Constant learning and progression

      Own your personal growth by navigating through our career progression framework and educational program

• Tough engineering challenges & hard-core R&D

  You will be able to work on unique space technology and build next-gen innovations, while mentored by world-recognized space experts

• Chance to join a winning company, backed up by Founders Fund and Google Ventures

  Meet international space experts and improve your knowledge and skillset within an industry of the future

At EnduroSat, we embrace diversity and strive to create an inclusive environment where everyone is treated with fairness and respect. We are committed to equal employment opportunities without discrimination against any employee or job applicant on the basis of race, color, religion, sex, national origin, age, disability, sexual orientation, or gender identity. Additionally, this position is suitable for people with disabilities in accordance with the People with Disabilities National Regulation Act, ensuring accessibility and accommodation in the workplace.