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Oligonucleotide Design Lead

Hybrid in Spain·Full-time·Added 13 days ago (last checked 7 Oct)

Grünenthal

4 open roles

Overview

Work mode
Hybrid, Spain
Contract
Full-time
English
Required
Experience
10+ years
Education
Doctorate

Visa options

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Skills

Requirements

What we're looking for

What you'll bring to the table
To make the most of this role and truly thrive, you should have:

  • PhD in RNA biology, molecular biology, computational biology, bioinformatics, or a related discipline
  • More than 10 years of relevant industry experience, including at least 5 years in therapeutic antisense or siRNA design and optimisation
  • Strong computational skills, including experience developing scripts or workflows (e.g. Python or R)
  • Experience designing siRNA across CNS and systemic delivery contexts, including optimisation of sequence and chemistry for robust in vivo activity
  • Proven track record contributing to or leading programs that progressed molecules to candidate stage, with demonstrated involvement in programs advancing toward clinical development
  • Strong understanding of oligonucleotide optimisation and risk assessment across discovery and development stages, from early design through to late-stage candidate selection
  • Experience delivering siRNA therapeutics in liver and CNS indications is highly desirable, ideally including progression of molecules toward clinical development
  • Strong scientific problem-solving mindset with a focus on delivering impact
  • Ability to operate effectively in a highly matrixed, cross-functional environment with a high degree of independence, ownership, and accountability

The role

Professional | Permanent | Full-time | Hybrid

If you're passionate about changing lives for the better, this is the opportunity you've been waiting for. In Research & Development, we're continuously exploring innovative new treatment options to make a stronger, more positive impact on the lives of the patients we serve. You'll work with talented colleagues in a state-of-the-art Research & Development environment, developing innovative medicines that change the life of patients for the better and help us make progress towards our vision of a world free of pain. Join us today, and discover the difference you can make.

What you'll do

What the job looks like
Every day you will enjoy different challenges such as:

  • Lead the design and computational optimisation of RNA therapeutics, particularly siRNA, integrating RNA biology with oligonucleotide chemistry to enable gene knockdown and RNA regulatory approaches, including up-regulation strategies.
  • Define and prioritise target sites and design strategies by integrating sequence features, RNA accessibility, transcript structure, cross-species alignment, and emerging experimental data
  • Drive iterative design-test-learn cycles by analysing and rapidly integrating datasets linking sequence, chemistry, and biological activity to inform decision-making
  • Develop and apply computational tools and workflows (e.g. Python or R) to enable scalable oligonucleotide design, data integration, and rapid sequence-chemistry iteration
  • Partner closely with oligonucleotide chemists and delivery scientists to co-optimise sequence, chemical modifications, and delivery approaches to maximise potency, durability, and tissue activity
  • Lead and contribute to discovery programs advancing RNA therapeutic candidates toward candidate profiling and clinical development, while helping prioritise and evaluate new targets aligned with platform capabilities.

Additional Information

"Be part of a team redefining what's possible in genetic medicine, creating transformative RNA therapies for severe pain, neurological disease, and adjacent areas where we can extend the reach of our platforms."

Keith Geoffrey Phillips, the Hiring Manager

About Grünenthal

Grünenthal is a global pharmaceutical company headquartered in Aachen, Germany, specializing in pain management and related diseases. With a strong focus on research and development, the company brings innovative treatments and technologies to patients worldwide. In 2025, Grünenthal employed around 4,100 people and achieved revenues of €1.8 billion, with affiliates in 28 countries across Europe, Latin America, and the U.S.

In Spain, Grünenthal operates through its subsidiary Grünenthal Pharma, located in Madrid. The Spanish office is recognized as one of the 50 best workplaces in Spain by Great Place to Work, offering a supportive environment with excellent facilities and a prime location overlooking a park. The company actively hires for roles in research, IT, and corporate functions, making it an attractive employer for international professionals seeking opportunities in the pharmaceutical sector.

Industry
Pharmaceuticals
Founded
1946
Employees
4,000–5,000
Headquarters
Aachen, Germany
In Spain
Madrid

Good to know if you are moving

  • Grünenthal is headquartered in Aachen, Germany, with a significant presence in Madrid, Spain, offering opportunities for international professionals.
  • The Spanish office is located in Madrid, a diverse and exciting city, and has been recognized as one of the 50 best workplaces in Spain by Great Place to Work.
  • The company provides excellent facilities, including free parking and a cantina, and promotes employee well-being.
  • Grünenthal operates in 28 countries, offering potential for international mobility and career growth.
  • The company focuses on pain management and related diseases, with a strong R&D pipeline, providing opportunities in research and innovation.
All open roles at Grünenthal
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Remote from SpainNo Spanish needed
Hybrid in SpainNo Spanish needed

Medical Science Liaison

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