General Internship Application 2027

We are excited to announce an open call for talented interns to join Oklo's dynamic team! Below are multiple positions across various disciplines that may be available, offering the chance to work on innovative projects for Summer 2027. If you're passionate about solving complex challenges, thrive in a collaborative environment, and are eager to contribute to groundbreaking solutions, we encourage you to apply.Requirements Oklo interns are required to:Relocate or be available to work out of Santa Clara CA where Oklo Headquarters is located for the duration of the internship or out of one of our satellite locations in Denver, CO, Brooklyn, NY, Idaho Falls, ID, or Washington D.C.Be available to work 30-40 hours per week between June 7, 2027 - August 20, 2027 (depending on the scope of work)Be currently enrolled or recently (2027) graduated with a Bachelor's or Master's Degree from an accredited universityIntern Position DescriptionsCore Thermal Hydraulics InternThe CTH Intern will develop intermediate fidelity (IF) subchannel and high-fidelity computational fluid dynamics (CFD) models for applications in sodium fast reactors (SFRs). The project will involve comparisons between simulation results and experimental data. The exact topic will depend on interest and company needs but could cover fluid-structure interaction, turbulence model development, uncertainty quantification, or surrogate modeling.Required QualificationsCoursework in fluid mechanics and heat transferExperience with 3-D CFD and meshing workflowsProficiency in PythonClear technical communication and documentation skillsBonus QualificationsExperience with advanced 3-D CFD concepts (large eddy simulation, fluid-structure interaction)Familiarity with high-performance computing workflows and toolsExperience with MOOSEFamiliarity with statistics and reduced order modelingFuel Performance InternWorking with members of Oklo’s Materials and Fuel Performance Team, this intern will explore the potential of lower-order fuel performance models to help accelerate our core-design iteration.Key ResponsibilitiesAssess the trade-off between computational cost and accuracy of lower-order fuel performance modelsDistill key phenomena for a variety of safety and design applications in order to calibrate simplified models against validation casesBenchmark new fuel performance toolsIntegrate original analysis and data processing into our production stackRequired QualificationsFluency in Python (or another object-oriented programming language)Prior experience with finite element analysis (FEA)Background in nuclear engineering and familiarity with reactor physicsMotivated learner who is adept at efficiently summarizing literatureBonus QualificationsExposure to the MOOSE modeling suiteStrong understanding of statistics and/or uncertainty quantificationCoursework or research related to materials scienceMechanical Analyst InternThis intern will contribute to the evaluation and optimization of mechanical components that are critical to Oklo’s advanced power plant designs. This position offers hands-on experience in applying engineering fundamentals, performing structural analysis, and integrating results into design iterations.Key ResponsibilitiesApply first-principles mechanics and strength of materials to support analysis of structural componentsAssist in summarizing mechanical analysis results for design teams, highlighting key findings such as peak stresses, margins of safety, and potential design revisionsSupport the development of technical documentation, ensuring clear and concise communication of assumptions, methods, and resultsCollaborate with design, manufacturing, and testing teams to help inform design improvementsRequired QualificationsWorking toward a degree in Mechanical Engineering, Aerospace Engineering, Materials Science, or a related disciplineStrong foundation in mechanics of materials, dynamics, and heat transferExposure to FEA tools (e.g., Ansys, Abaqus, COMSOL, or similar) through coursework or projectsProficiency in Python, MATLAB, or another programming language for basic data analysis or workflow automationStrong communication skills with the ability to clearly document and present technical findingsBonus QualificationsPrior research or project experience involving creep, fatigue, or thermal-mechanical problemsFamiliarity with engineering codes and standards (e.g., ASME, AISC, or similar)Experience using Git or another version control systemInstrumentation and Controls InternThis intern will contribute to the development, integration, and testing of measurement and control systems that support advanced reactor operation and power generation. This position provides hands-on exposure to sensors, automation, and control strategies, while giving interns the opportunity to apply classroom knowledge to real-world engineering challenges.Key ResponsibilitiesAssist in developing and testing sensors, instrumentation, and actuators under real design constraintsHelp design and implement control algorithms for equipment and processesSupport the integration of I&C components into reactor systems and analysis workflowsContribute to documenting methods, results, and system designs in a clear and professional mannerCollaborate with design and analysis teams to provide feedback that supports rapid iteration and improvementRequired QualificationsWorking toward a degree in Electrical Engineering, Mechanical Engineering, Computer Engineering, or a related fieldFamiliarity with measurement techniques, data acquisition, and signal processingExposure to control theory and feedback systems through coursework or projectsBasic programming skills in Python (or similar) for data analysis and automationStrong communication skills and an eagerness to learn in a collaborative environmentBonus QualificationsExperience with circuit design (analog or digital) from labs, research, or projectsExposure to communication protocols and digital networksFamiliarity with Git version controlNeutronics Methodologies InternThis intern will assist in updating and streamlining neutronic methodologies to align with the latest format and standards. They will ensure that the methodologies match the way the code base builds the model, verifying consistency across both. This position also involves identifying and documenting gaps or discrepancies in the review process for future improvements.Key ResponsibilitiesUpdate and optimize neutronic methodologies to the latest format and standards.Ensure methodologies align with the way the code base builds the model.Identify and document any gaps or discrepancies in the current processes.Collaborate with team members to ensure consistency and accuracy in modeling procedures.Required QualificationsProficient in Python for scripting and automation.Familiar with AsciiDoc for documentation and formatting.Strong background in nuclear engineering and neutronics.Attention to detail with an ability to identify gaps in methodologies and processes.Process InternThis intern will support the design and analysis of fluid and power systems that are essential to Oklo’s advanced reactors. This position provides hands-on experience with system modeling, equipment evaluation, and prototyping, offering interns a chance to apply classroom knowledge to real-world energy systems.Key ResponsibilitiesAssist in designing fluid and process systems, including piping, valves, pumps, compressors, and heat exchangersSupport definition of process equipment specifications, performance criteria, and operating conditionsContribute to prototype setup and testing activities for iterative system design and validationHelp prepare technical documentation to support system layout, fabrication, installation, and operationCollaborate with engineers on analyses to evaluate performance and inform design refinementsDocument results and methods in a clear and professional manner for use across design and regulatory teamsRequired QualificationsWorking toward a bachelor’s or master’s degree in Mechanical Engineering, Chemical Engineering, Nuclear Engineering, or a related disciplineBackground in thermodynamics, fluid mechanics, and heat transfer through coursework or projectsFamiliarity with process or system modeling tools (e.g., MATLAB, Python, Aspen, or similar)Strong problem-solving skills with attention to detailAbility to clearly communicate technical findings through reports or presentationsBonus QualificationsExperience with lab work, prototyping, or experimental systemsExposure to piping and instrumentation diagrams (P&IDs) or process design courseworkFamiliarity with pumps, heat exchangers, or thermal-fluid systems from research or internshipsPrototyping/Manufacturing InternThe prototyping engineering intern will be a part of the prototyping and visualization team. Key ResponsibilitiesAssist in machining and general fabrication of prototypes and test setupsWork with engineers to develop and execute testing procedures for mechanical systemsSupport assembly, troubleshooting, and optimization of electro-mechanical systemsConduct inspections and quality control on fabricated componentsDocument test results, process improvements, and technical findingsCollaborate with the engineering team to improve designs and manufacturing processesMaintain a safe and organized workspaceRequired qualificationsMechanical, manufacturing, electrical, nuclear, chemical, or similar engineering student graduating with bachelors, masters, or PhD within the following yearHands-on experience with mechanical fabrication, machining, or assemblyGood understanding of mechanical design, materials, and manufacturing processesFamiliarity with mechanical measurement tools (calipers, micrometers, etc.)Ability to read and interpret engineering drawings and schematicsStrong problem-solving skills and ability to work independently and in a team environmentGood communication and technical documentation skillsBonus qualificationsExperience with manual or CNC machiningExposure to electronics, sensors, and control systems (mechatronics experience)Experience with CAD software (SolidWorks, AutoCAD, or similar)Experience with welding, 3D printing, or other prototyping techniquesUnderstanding of fluid mechanics, thermodynamics, or materials scienceExperience with data acquisition systems and programming (Python, LabVIEW, or MATLAB)Business Operations InternThis role provides an opportunity to gain hands-on experience in business operations, process improvement, and cross-functional collaboration. This role is ideal for someone looking to grow their operational skill set in core business operational functions and is passionate about contributing to initiatives that drive efficiency while supporting key compliance functions across the organization. Key ResponsibilitiesAssist with day-to-day business operations, including process documentation, workflow optimization, and project coordination.Collect, organize, and analyze operational and financial data to generate insights and support decision-making.Prepare reports, presentations, and dashboards for internal stakeholders.Collaborate with cross-functional teams (finance, HR, marketing, product, etc.) to support operational initiatives.Conduct research on industry trends, competitors, and best practices to support strategic planning.Identify and recommend opportunities for process improvements and increased efficiency.Provide administrative and logistical support for team projects and meetings.Required QualificationsCurrently pursuing a bachelor’s degree in Business Administration, Operations Management, Economics, or a related field.Strong analytical, organizational, and problem-solving skills.Proficiency in Microsoft Office Suite (Excel, PowerPoint, Word) or Google Workspace.Excellent written and verbal communication skills.Ability to work independently and collaboratively in a fast-paced environment.Attention to detail and eagerness to learn.CompetenciesWe are looking for interns that are:Passionate about making advanced fission a realityWilling and able to learn quicklyEager to work on a dynamic team, receive constructive feedback, and grow with usWilling to think differently and do things in new waysComfortable in a fast-paced, highly iterative startup environmentExcited to think creatively, critically, and reflectively about the problems they are solving, while not leaning only on what has been done beforeWilling to propose novel and creative solutions to technical problemsAn excellent writer who can write in modern active voice, so make your cover letter compelling and write it well!Able to communicate technical content and results verbally Who you are:A startup person: You aren't driven by titles or hierarchy, and prefer efficiency to excess process. You don't need or expect to have a lot of guidance but you enjoy working in a fast-paced team. If you prefer the culture and feel of a large organization, that is great, but you likely won’t enjoy working with us! There is plenty of important work and plenty of good opportunities with organizations like that.Motivated: You are self-motivated. You bring an enthusiasm to the team, and imbue a sense of passion that goes beyond clocking in and clocking out. This isn’t about a fake or arbitrary “pieces of flair” mentality or lack of work-life balance! It is about being a part of the vision and feeling a part of reaching team goals.A team-player: Oklo genuinely is a team. We aren’t about taking credit for ourselves, and we aren’t about pushing blame to others. We do incredible things because we work as a team.An excellent communicator: We need a person who is not only technically competent but also a clear and upbeat communicator.Creative: Being creative means that when things fall outside clear scopes or processes or problems arise without clear solutions, you are able to identify it as well as invent ways to solve a problem or fill a need without micromanagement. The successful person in this job will not only be creative, but also enjoy being creative and solving open-ended problems which may change day-by-day.Detail-oriented: This focus is a big part of excellence, consistency, and quality. Excellent grammar and spelling matter for both good communication as well as the image of the company that we put forward. About Oklo's Intern compensation:Oklo offers housing assistance, $35 - $44 per hour (compensation is determined based on education, skills, and experience), 1-on-1 mentorship, hands-on training, and the opportunity to engage in fun team-building activities as well as interactive workshops, enhancing both professional and personal growth.Due to the nature of Oklo's work, only U.S. citizens can be considered for these positions. About Oklo Inc.: Oklo Inc. is developing fast fission power plants to deliver clean, reliable, and affordable energy at scale; establishing a domestic supply chain for critical radioisotopes; and advancing nuclear fuel recycling to convert nuclear waste into clean energy. Oklo was the first to receive a site use permit from the U.S. Department of Energy for a commercial advanced fission plant, was awarded fuel material from Idaho National Laboratory, and submitted the first custom combined license application for an advanced reactor to the U.S. Nuclear Regulatory Commission. Oklo is also developing advanced fuel recycling technologies in collaboration with the U.S. Department of Energy and U.S. National Laboratories.#CHOP: Oklo’s Values Collaboration: We go further, together. We bring diverse perspectives, listen actively, and build trust through transparency and respect. We work across disciplines, sharing ownership to turn complex challenges into shared successes. Humility: We are team players who act for the good of the company and for the world. We are focused on our mission, not personal recognition. Ownership: We take pride in what we do and how we do it. We are proactive in finding solutions and see tasks through to completion. We are committed to delivering on our promises to provide clean, reliable, and affordable energy. Pathfinding: We chart new ground where no path exists by approaching challenges with curiosity, courage, and creativity while navigating ambiguity. Candidates should be aware that employment may be contingent upon successful completion of a drug screening, and employees may be subject to drug testing at any time in accordance with company policy and applicable laws.Recruitment Fraud DisclaimerOklo is aware of recent recruitment fraud attempts targeting job seekers. Please be cautious of anyone claiming to represent Oklo who does not contact you from an official Oklo email address.All legitimate communications from our recruiting team— including application updates, interview requests, and job offers — will come exclusively from an @oklo.com email. Oklo will never ask for sensitive personal information, payments, or account credentials during the hiring process.If you receive suspicious outreach or have concerns about the authenticity of any communication claiming to be from Oklo, please contact us through the official channels listed on our website.