Sign up to access all features of our service.
  • Job search
  • Favorites
  • Create a CV
    New
  • Salaries
  • Subscriptions

R&D Scientist

Full-time

Mafix

Mafix transforms the world's most abundant rocks and minerals into the next generation of fertilizers. Our products help farmers maintain and improve crop yields while permanently removing CO ₂ from the atmosphere through enhanced rock weathering, delivering a dual return that conventional agricultural products cannot.

We produce our mineral fertilizer using spare capacity in cement rotary kilns, making it cost-competitive without building new infrastructure. Applied to soil, it releases plant-available silicon and other nutrients that strengthen crops against climate stress, drought, and pests, while sequestering carbon as the mineral dissolves.

With core chemistry published in Nature, our pre-seed funding secured, and key partnerships in place, we are scaling fast: moving from pilot production to a 1,000-tonne commercial run in 2027. We are looking for team members excited to unlock the power of abundant rocks towards a climate positive and food abundant future!

Position Details:

We are looking for an experienced, enthusiastic Scientist who is passionate about creating products that deliver agronomic and environmental returns. This R&D Scientist will work closely with the Head of Technology to advance Mafix’s first-generation product and set the course for the company’s technology development. They will independently design and execute experimental campaigns utilizing techniques from chemistry, materials science, and agronomy as part of the technology development team.

This role will report to the Head of Technology and be full-time onsite in Seattle, WA.

Responsibilities:
  • Design, execute, and analyze laboratory experiments involving wet chemistry techniques and solid-state chemistry.
  • Design new experimental protocols based on literature procedures, including identifying and setting up the necessary equipment.
  • Build out R&D capabilities including equipment commissioning, lab facility setup and others alongside the Head of Technology and other team members.
  • Analyze and present results and implications from R&D experiments.
  • Be a collaborative member of a growing R&D team.



     
Qualifications:
  • PhD (or equivalent Masters + Experience, or BS + Experience) in Chemistry, Geochemistry, Materials Science, or related scientific or engineering field.
  • Experience designing and executing experiments in a laboratory setting
  • Experience with analytical techniques such as XRF, XRD, ICP, SEM, PSA
  • Experience executing literature searches and designing new experiments based on literature protocols
  • Experience with hydrometallurgy and/or pyrometallurgy preferred
  • Self-motivated and able to work independently with strong attention to detail.



     
Location and Pay:
  • Onsite in Seattle, WA
  • Competitive salary
  • Equity options
Benefits:
  • Competitive benefits (including 401k, healthcare coverage)

 

Vacancy posted a month ago
Similar jobs that could be interesting for youBased on the R&D Scientist in Seattle, WA vacancy
  • Mafix is seeking an experienced R&D Scientist to drive our first‑generation product and shape technology development. You will design and run experiments across chemistry, materials science, and agronomy, reporting to the Head of Technology, and collaborate with the growing... 
    Suggested

    Mafix

    Seattle, WA
    6 days ago
  • United Imaging - North America in Seattle seeks a Clinical Scientist (Ultrasound) to support R&D, product evaluation, marketing, and new product introduction in the US and with our global headquarters. You will collaborate with Clinical Science, Product Management and R... 
    Suggested

    United Imaging - North America

    Bellevue, WA
    5 days ago
  • The University of Washington invites applications for a Research Scientist/Engineer 3 in the Zhu Laboratory. This role focuses on leveraging microphysiological systems, imaging technologies, and single-cell analyses to study host immune responses against chronic viral infections... 
    Suggested

    FHLB Des Moines

    Seattle, WA
    4 days ago
  • $142.8k - $193.2k

     ...practices while architecting on the cloud. We are looking for Applied Scientists to drive innovation with Gen AI to bring paradigm shift to how...  ...the culture of a startup, the innovation and creativity of a R&D Lab, the work-life balance of a mature organization, and... 
    Suggested
    Flexible hours
    Shift work

    AmazonWebServices

    Seattle, WA
    23 days ago
  • Bruker is enabling scientists to make breakthrough discoveries and develop new applications that improve the quality of human life. Bruker...  ...of analysis-ready datasets, working closely with internal R&D, product development, and external collaborator teams. This is... 
    Suggested
    Permanent employment
    Temporary work
    Fixed term contract
    Worldwide

    Bruker Daltonics

    Seattle, WA
    5 days ago
  • Bruker Spatial Biology in Seattle seeks a Senior Scientist for a 12-month contract to lead the full experimental pipeline from FFPE tissue...  ...FFPE, IHC/IF, and fluorescence imaging. You will collaborate with R&D and external partners to meet project milestones. #J-18808-... 
    Contract work

    Bruker Corporation

    Seattle, WA
    5 days ago
  • Bruker Spatial Biology seeks a Senior Scientist for a fixed-term 12-month contract in Seattle, WA. You will own the full experimental pipeline...  ...of analysis-ready datasets, working closely with internal R&D and external collaborators. This hands-on role requires strong wet... 
    Contract work
    Fixed term contract

    Bruker Daltonics

    Seattle, WA
    5 days ago
  • Adobe is seeking a Research Scientist in Seattle for an inpainting R&D role to advance image generation, restoration, and related computer vision research with a focus on productization. The candidate should have expertise in AI/ML, scene understanding, and be adept at... 

    Adobe

    Seattle, WA
    3 days ago
  • $140k - $170k

     ...high bar for itself — keep reading. About The Role The Big Data R&D team is responsible for building the core identity graph and...  ...identity and fraud products. You will work closely with senior data scientists and engineers while developing your skills in large-scale ML,... 

    Socure

    Seattle, WA
    6 days ago
  • Associate Scientist, Gene Engineering and Delivery Bristol Myers Squibb is a global biopharmaceutical company committed to creating innovative...  ...the reach and resources of a major pharma company. Through our R&D organization, we have built a sustainable pipeline of potential... 

    Bristol Myers

    Seattle, WA
    2 days ago
  • Bruker Spatial Biology is seeking a Senior Scientist for a 12-month fixed-term contract in Seattle to lead end-to-end spatial biology workflows...  ...-lab execution, strong troubleshooting, and collaboration with R&D, product development, and external partners. The ideal candidate... 
    Contract work
    Fixed term contract

    UNAVAILABLE

    Seattle, WA
    4 days ago
  •  ...applications, and research. We are establishing a new Ultrasound R&D team in the Seattle area. Our Seattle team’s focus is innovation...  ...(such as cash bonus(es)). Job Description The Clinical Scientist (Ultrasound) works closely with our global, cross-functional teams... 
    Full time
    Temporary work
    Work experience placement
    Work at office
    Local area
    Worldwide
    Flexible hours

    United Imaging

    Bellevue, WA
    2 days ago
  •  ...Description MULTIPLE POSITIONS AVAILABLE Employer: AMAZON DEVELOPMENT CENTER U.S., INC. Offered Position: Research Scientist III Job Location: Seattle, Washington Job Number: AMZ10061595 Position Responsibilities: Develop and apply state of the art... 
    Work at office

    Amazon

    Seattle, WA
    2 days ago
  • $50 - $60 per hour

     ...Job Title: Research Scientist Job Description As a quantitative research consultant, you will play an integral role in measuring and optimizing workplace dynamics. You will be responsible for both foundational and advanced analysis work. Foundational tasks involve... 
    Contract work
    Temporary work
    Monday to Friday

    Actalent

    Seattle, WA
    5 days ago
  •  ...Senior Applied Scientist The OCI AI Evaluation team builds the evidence behind model-selection, product-readiness, and launch decisions. We evaluate frontier foundation models and AI systems across capabilities such as reasoning, coding and agentic coding, retrieval... 

    Hackajob

    Seattle, WA
    2 days ago
  • $142.7k - $270.95k

     ...Applied Scientist / Machine Learning Engineer Adobe Firefly's Applied Science & Machine Learning (ASML) group invites an Applied Scientist / Machine Learning Engineer passionate about post-training and distillation of large generative AI models to join the team. This... 
    Temporary work
    Local area
    Worldwide

    Adobe

    Seattle, WA
    3 days ago
  • $167.1k - $226.1k

     ...millions of customers daily. Amazon's Item and Relationship Platform group is looking for an innovative and customer-focused applied scientist to help us make the world's best product catalog even better. In this role, you will partner with technology and business leaders... 
    Worldwide
    Flexible hours

    Amazon

    Seattle, WA
    1 day ago
  • $159k - $287k

     ...incentives. o Collaborate with AI Engineers who will embed your models inside intelligent agents and applications. o Mentor other scientists and engineers; elevate standards around methodology, code quality, and evaluation. o Influence roadmap and strategy by... 
    Contract work

    QXO

    Seattle, WA
    4 days ago
  • $99.44k

    Job DescriptionField of research:Single particle cryo-electron microscopy and X-ray crystallization of viral glycoproteins, immunogen design, virology, biochemistry and biophysics.Purpose of the Research Project(s):The goal of our research is to develop vaccines and therapeutics...
    Full time
    Temporary work
    Work at office
    Shift work

    University of Washington

    Seattle, WA
    a month ago
  •  ...Research Scientist Independently partners with science, engineering, and product teams to translate business needs into a clear research plan and production-ready solutions. Leads end-to-end applied research: surveying state of the art, preparing high-quality datasets... 

    Oracle

    Seattle, WA
    5 days ago
  •  ...Machine Learning Scientist Independently partners with science, engineering, and product teams to translate business needs into a clear research plan and production-ready solutions. Leads end-to-end applied research: surveying state of the art, preparing high-quality... 
    Shift work

    Hackajob

    Seattle, WA
    4 days ago
  • $80k - $85k

     ...resistance and plant response. The role is a blend of hands‑on field and greenhouse work, experimental design, and collaboration across R&D teams to advance the company’s genetic pest resistance initiatives. The Entomologist will design and lead research efforts focused... 
    Work at office

    Southern Arkansas University

    Seattle, WA
    2 days ago
  •  ...build distributed, scalable, low-latency solutions for real-world customer facing problems. We are looking for an Senior Research Scientist who can work on different aspects of the video content, like text metadata, video, audio and images to apply from variety of techniques... 

    Comtech

    Seattle, WA
    a month ago
  • $285k - $380k

     ...People Research Scientist, Recruiting San Francisco, CA | New York City, NY | Seattle, WA About Anthropic Anthropic's mission is to create reliable, interpretable, and steerable AI systems. We want AI to be safe and beneficial for our users and for society as... 
    Work at office
    Visa sponsorship
    Flexible hours

    Anthropic

    Seattle, WA
    1 day ago
  • $171.6k - $222.2k

     ...you can decide where a career Prime Video Tech takes you! We are looking for a self-motivated, passionate and resourceful Applied Scientist to bring diverse perspectives, ideas, and skill-sets to make Prime Video even better for our customers. You will spend your time... 
    Local area
    Worldwide
    Flexible hours

    Amazon

    Seattle, WA
    2 days ago
  • $142.8k - $193.2k

     ...science in order to recruit, retain and develop top talent. You will lead the research direction for a team of deeply talented applied scientists, creating the roadmaps for forward-looking research and communicate them effectively to senior leadership. You will also hire and... 
    Flexible hours

    Amazon

    Seattle, WA
    3 days ago
  • $115k - $150k

    Scientist - Functional ProteomicsLocation: Seattle, WACompensation: $115,000-$150,000 annual base salaryEmployment Type: Direct HireWork Arrangement: Primarily onsiteYoh is proactively seeking a Scientist - Functional Proteomics for an anticipated opportunity with a biotechnology... 

    Yoh

    Seattle, WA
    7 days ago
  • $142.8k - $193.2k

    Do you want to transform the way people shop at Amazon? We are looking for stellar applied scientists to be part of our multi-disciplinary team. We are re-imagining the future of the Amazon shopping experience for customers through tailoring it to their current intent.... 
    Flexible hours

    Amazon

    Seattle, WA
    a month ago
  • $70k - $80.5k

     ...Postdoctoral Scientist The Howard Hughes Medical Institute (HHMI) advances the discovery and sharing of scientific knowledge to benefit us all. As a biomedical research organization and philanthropy, HHMI supports a vibrant community of academic researchers, educators... 
    Local area
    Flexible hours

    HHMI

    Seattle, WA
    2 days ago
  • $192.2k - $260k

     ...transform ad retrieval, auctions, whole-page relevance, and/or bespoke shopping experiences.- Collaborate cross-functionally with other scientists, engineers, and product managers to bring scalable, production-ready science solutions to life.- Stay abreast of industry trends... 
    Seasonal work
    Local area
    Flexible hours

    Amazon

    Seattle, WA
    11 days ago

Do you want to receive more vacancies?

Subscribe and receive similar vacancies to R&D Scientist. Be the first to apply!