The Role

We are opening a 3–6 month Early Career program within our AI R&D team. You will work alongside experienced researchers to solve challenges in LLMs, reinforcement learning, and agentic systems.

We are looking for Early talents to support research in:

• Reinforcement learning for agents and reasoning models
• Building reinforcement learning environments
• Efficient model distillation and evaluation

Your responsibilities will include:

• Assist in designing and running experiments to train LLMs and speculators for them
• Help analyze experimental results and document findings
• Write and maintain code for data mining, processing, and model evaluation
• Collaborate with the team to explore new methods in the selected research direction
• Participate in technical discussions and discuss future steps of research
• Advanced methods for efficient speculative decoding
• Inference optimization techniques

We expect you to have:

• Strong knowledge of computer science and machine learning fundamentals
• Experience with Python and familiarity with deep learning frameworks
• Ability to write clean, efficient code
• Strong problem-solving skills and a willingness to learn quickly
• Good communication skills in English
• Permitted to work in the job’s location

Nice to have:

• Previous experience with NLP/reinforcement learning/AI agents projects
• Familiarity with current LLM concepts
• Enrollment in or completion of a degree in Computer Science, AI, or a related field
• Contributions to open-source projects

What we offer

• Competitive salary and comprehensive benefits package
• Mentorship from experienced AI, ML, and cloud infrastructure professionals
• Hands-on experience with real customer workloads and production systems
• Remote work flexibility and a collaborative, supportive team environment
• Opportunity to be considered for a full-time role after the Early Talent Program

We’re growing and expanding our products every day. If you’re up to the challenge and are excited about AI and ML as much as we are, join us!

As a Senior UX Researcher (on a maternity cover role) at SentinelOne, you will play a crucial role in shaping the user experience of our products. You will collaborate with cross-functional teams, including product managers, product designers, and engineers, to conduct user research and provide actionable insights that drive the development of intuitive, user-centric solutions. Your work will have a direct impact on our main product, enabling us to develop innovative concepts and ideas based on data and research, rather than subjective opinions.

SentinelOne’s design team (over 20 designers across the US, Israel, Czechia and India) are growing quickly and transforming its role in the organization. We are leading the way with ideas and execution to make our product more lovable, usable, and flexible.

You will impact products that serve thousands of users from security teams at enterprise and government customers across the globe (incl. 5 of Fortune 10 and hundreds of Global 2000) and protect tens of millions of endpoints every day. You will contribute to safeguarding the world’s creativity, communications, and commerce on devices and in the cloud.

What Will You Do?

Primary responsibilities include:

• Plan and execute user research activities to gain deep insights into user behavior, needs, and pain points.
• Conduct qualitative and quantitative research, such as user interviews, surveys, usability tests, and analytics analysis.
• Collaborate closely with product managers, designers, and engineers to identify research questions and define research goals.
• Synthesize and analyze research findings and communicate them in a clear and impactful manner to stakeholders.
• Work with the design team to generate personas, user flows, wireframes, and prototypes based on research insights.
• Continuously advocate for the user by promoting user-centered design principles throughout the product development process.
• Stay up to date with industry trends and best practices in UX research and contribute to the advancement of our research methodologies.

What Skills and Knowledge Will You Bring?

Ideal candidates will have:

• Proficiency in UX design tools and software, such as Dovetail and Figma.
• Fluency in English, both written and spoken.
• Fluency in using AI tools throughout the UX research process.
• Proven experience in conducting user research for software or web-based applications.
• Proficiency in qualitative and quantitative research methods, including user interviews, surveys, usability testing, and data analysis.
• Strong analytical and problem-solving skills, with the ability to derive actionable insights from complex data sets.
• Excellent communication skills, both written and verbal, with the ability to present research findings to diverse stakeholders.
• Knowledge of cybersecurity concepts and the ability to understand the unique challenges and needs of our target users is highly appreciated.
• A Bachelor's or Master's degree in Human-Computer Interaction, Psychology, Cognitive Science, or a related field is highly appreciated.
• A portfolio demonstrating past research projects and their impact on product development is highly desirable.

Why SentinelOne?

AI is redefining how the world operates and rewriting the rules of security in real time, and SentinelOne was built for this moment. From day one, we architected an AI-native platform designed to operate at machine speed, not as an add-on to legacy systems but as the foundation itself. If you want to build where innovation and impact move together, this is that place.

We invest in our Sentinels with comprehensive, competitive benefits designed to support you and your family:

• Stock & Bonuses: Grant of Restricted Stock Units with a 4-year vesting plan, annual performance-based bonuses, and an employee stock purchase plan.
• Time Off & Well-being: Flexible Time Off, on top of the standard 5 weeks vacation, flexible paid sick days, fully paid Short Term Sick/Nursing Leave, 16-week parental leave, grandparent leave, and additional company holidays.
• Insurance & Health: Pension Insurance Contribution, Premium life insurance, Private medical care (for you and +1), and a Global Employee Assistance Program.
• Work Perks: Monthly meal and well-being allowance, high-end MacBook/Windows laptop, work-from-home support, and in-office refreshments.
• Growth & Community: LinkedIn Learning, internal mentoring, educational support, generous referral bonuses, and optional company events (sports, BBQs, charity).

THE ROLE

As a Talent Sourcer at Everpure, your mission is to identify, engage, and qualify top talent to build strong pipelines for current and future hiring needs. You will partner closely with Recruiters and Hiring Managers across multiple regions and time zones to define impactful sourcing strategies and map target markets. By driving the top of the candidate funnel, you will ensure an excellent candidate experience from the very first contact.

WHAT YOU'LL DO

• Design and execute comprehensive sourcing strategies across multiple channels, including talent databases, referrals, and events. Through these channels, you will proactively identify, approach, and engage candidates in line with hiring priorities and diversity goals.
• Partner with Recruiters and Hiring Managers to understand team context and translate job descriptions into clear candidate archetypes and target companies. You will collaborate globally to refine messaging, improve conversion rates, and provide a consistent candidate experience.
• Take full ownership of the top of the funnel, including managing active applicants. You will conduct initial outreach and screening conversations to assess candidate interest, alignment, and basic qualifications.
• Create and maintain reusable market maps and well-tagged talent pools for critical, niche, and recurring roles. You will keep accurate data in our ATS/CRM while sharing regular pipeline updates, market insights, and competitor signals with stakeholders.
• Represent Everpure's employer brand professionally in all online presence and candidate interactions. You will continuously experiment with and adopt new sourcing techniques and AI-based solutions to increase efficiency and quality of hire.

WHAT YOU BRING

• Direct experience as a Sourcer, Talent Researcher, or Recruiter in either an agency or in-house environment. You possess a strong command of advanced Boolean search techniques across multiple platforms.
• The proven ability to source and engage passive candidates, particularly for niche or hard-to-fill roles. You are highly capable of identifying key skills required for each role and thoroughly assessing the strongest candidates.
• Hands-on experience operating ATS and/or CRM tools for effective pipeline management and reporting. You are a highly organized, data-minded professional who can comfortably manage multiple roles and priorities in parallel.
• Excellent written and verbal communication skills to tailor messaging to different profiles, paired with the stakeholder management skills necessary to influence and educate your partners. You are comfortable working in a distributed global team and flexing your hours when needed to collaborate across time zones.
• We are primarily an in-office environment and therefore, you will be expected to work from the Prague office in compliance with Everpure’s policies, unless you are on PTO, or work travel, or other approved leave.

#LI-ONSITE

THE ROLE
As a Talent Sourcer at Everpure, your mission is to identify, engage, and qualify top talent to build strong pipelines for current and future hiring needs. You will partner closely with Recruiters and Hiring Managers across multiple regions and time zones to define impactful sourcing strategies and map target markets. By driving the top of the candidate funnel, you will ensure an excellent candidate experience from the very first contact.

WHAT YOU'LL DO

• Design and execute comprehensive sourcing strategies across multiple channels, including talent databases, referrals, and events. Through these channels, you will proactively identify, approach, and engage candidates in line with hiring priorities and diversity goals.
• Partner with Recruiters and Hiring Managers to understand team context and translate job descriptions into clear candidate archetypes and target companies. You will collaborate globally to refine messaging, improve conversion rates, and provide a consistent candidate experience.
• Take full ownership of the top of the funnel, including managing active applicants. You will conduct initial outreach and screening conversations to assess candidate interest, alignment, and basic qualifications.
• Create and maintain reusable market maps and well-tagged talent pools for critical, niche, and recurring roles. You will keep accurate data in our ATS/CRM while sharing regular pipeline updates, market insights, and competitor signals with stakeholders.
• Represent Everpure's employer brand professionally in all online presence and candidate interactions. You will continuously experiment with and adopt new sourcing techniques and AI-based solutions to increase efficiency and quality of hire.

WHAT YOU BRING

• Direct experience as a Sourcer, Talent Researcher, or Recruiter in either an agency or in-house environment. You possess a strong command of advanced Boolean search techniques across multiple platforms.
• The proven ability to source and engage passive candidates, particularly for niche or hard-to-fill roles. You are highly capable of identifying key skills required for each role and thoroughly assessing the strongest candidates.
• Hands-on experience operating ATS and/or CRM tools for effective pipeline management and reporting. You are a highly organized, data-minded professional who can comfortably manage multiple roles and priorities in parallel.
• Excellent written and verbal communication skills to tailor messaging to different profiles, paired with the stakeholder management skills necessary to influence and educate your partners. You are comfortable working in a distributed global team and flexing your hours when needed to collaborate across time zones.
• We are primarily an in-office environment and therefore, you will be expected to work from the Prague office in compliance with Everpure’s policies, unless you are on PTO, or work travel, or other approved leave.

#LI-ONSITE

Software engineers and AI agents alike suffer from the same problem: finding that one person or place that will answer their tough, specific question. Many solutions promise to solve this with similarity search in vector databases. Unfortunately, finding the answer is often a puzzle with pieces to be collected across a myriad of contradictory sources and cannot be solved without surgical search and careful reasoning.

Spectrum collects data from an organization's code, docs, and issues, and organizes knowledge in a unified ontology that AI agents can efficiently search through and reason over. We aim to revolutionize the semantic layer space for software-building organizations and move beyond specs that fall out of sync with code, introducing a living spec – one that's extracted from the whole system and used to keep it aligned. Spectrum is meant to be the single source of truth for all product and architectural knowledge.

A resident of JetBrains' startup incubator, Spectrum enjoys startup speed and autonomy, and is backed by 25 years of developer tooling expertise. We are looking for a Senior ML Researcher to develop the core methods that make Spectrum possible – novel approaches to temporal ontology extraction, contradiction detection, and semantic alignment across heterogeneous software artifacts. You will help define and execute the research agenda, while also collaborating with JetBrains Research and external academic advisors.

Your responsibilities will include:

• Developing methods for LLM-based ontology construction from code, documentation, and issue trackers, including contradiction detection and reasoning over the resulting knowledge graph.
• Creating datasets, metrics, and benchmarks that drive measurable improvements across the system.
• Prototyping and validating research ideas, then collaborating with ML and software engineers to bring them to production.
• Collaborating with JetBrains Research and external academic advisors to shape our research agenda.
• Publishing research findings at top venues and representing Spectrum in the research community.

We expect you to have:

• A PhD (or equivalent research experience) in NLP, knowledge graphs, ontology learning, information extraction, or a closely related field.
• A strong publication record in at least one of the following areas: knowledge graph construction, ontology learning, information extraction, or NLP.
• Experience applying LLMs to structured knowledge extraction tasks.
• Experience designing and running rigorous experiments, including hypothesis formulation, ablation studies, and statistical evaluation.
• Strong Python and PyTorch skills, with the ability to implement research ideas from scratch.
• Excellent communication skills, with the ability to explain complex technical concepts to diverse audiences.
• Proficiency in English, both written and verbal.

Our ideal candidate would also have:

• Experience with ontology engineering, semantic web technologies (OWL, RDF, SPARQL), or ontology alignment.
• A background in code analysis, developer tools, or software engineering research.
• Experience with knowledge graph embedding methods or graph neural networks.
• Experience in early-stage startups – you enjoy the zero-to-one phase.
• Actively contributed to relevant open-source projects.

What we offer:

• A competitive salary and JetBrains benefits.
• A generous runway and corporate resources with startup autonomy.
• Full support for publishing ML research and attending industry conferences.
• Collaboration with JetBrains Research and external academic advisors in the knowledge graph and ontology learning community.
• A motivated team that moves fast, with short feedback loops, rapid prototyping, and lots of ownership.
• A rare applied research role where your methods ship in a real product used by software teams.

Why join JetBrains? 

• Strong base salary. We offer competitive pay that reflects your skills and experience.
• Flexible work location. Enjoy the freedom to work from home or from the office.
• Remote work. Spend up to 30 days per year working remotely from abroad.
• Extra time off. More days to relax, recharge, and do the things you love.
• Medical insurance allowance. Enjoy peace of mind for you and your family
• Learning and development opportunities. Access to conferences, courses, and language classes.
• Language classes. Pick up the local language or sharpen your English skills.
• Fuel your day. Enjoy a hot meal or receive a lunch allowance on workdays.
• Mental health support. To help you feel your best, we provide easy access to professional mental health services.
• Sports benefit. Enjoy an on-site gym or sports club stipend.
• Internal events. Join company-wide celebrations and team gatherings.

*Some benefits may vary depending on location.

#LI-DNI

We're building an AI copilot for web testing automation. It enables manual and automation QA engineers to turn their manual testing flows into production-ready automated E2E testing scripts, saving hours of manual work and coding. We are a small team with zero bureaucracy, focusing on real users. We optimize for shipping value - not hype.

About the role:

You'll own the top of the funnel: outbound, qualification, and getting leads to sit down for a conversation. Demos, onboarding, and retention are staying with the founder for now.

Phase one: Get individual Automation QAs to try the product, aiming for fast adoption and no procurement. Once we hit 20+ weekly users, we’ll move on to phase two, where we’ll shift the focus to B2B – qualified meetings with QA Leads and Engineering Managers.

Your focus in the first three months:

• Build targeted lists: Automation QAs at companies with web products and Playwright, Cypress, or Selenium in their stack.
• Run outbound sequences (LinkedIn is the baseline, but you decide the channels). A/B test weekly.
• Design qualification gates (forms and scoring) to filter leads before the founder calls.
• Reach 20+ weekly active users after month one – ICP-qualified and giving direct feedback to engineering.
• Document what works into a repeatable playbook.

Growth path:

This role expands as your strategies deliver results. Once the user pipeline works, you can take over demos and run B2B sales end to end. From there, the natural next step is Growth Lead (funnel optimization and scaling the playbook) or Account Executive (owning deal execution).

Why to join:

• You'll be building a strategy that scales the product, not filling a quota. What you create from scratch becomes the foundation.
• Your outreach turns into users who talk directly to engineering, and their feedback ships as features within days.
• AI for developer tools is a market with real pull, and QA automation is one of its sharpest pain points.
• We’re backed by JetBrains – financially secure with no reliance on external VC funding.

Who we're looking for:

You should have a high level of agency and be quant-minded – you live in funnel metrics, run experiments, and are comfortable saying "no" to leads that are a bad fit. 

The ideal candidate will:

• Have done 0-to-1 outbound for an early-stage devtool, QA tool, infrastructure product, or similar.
• Have proven cold outbound results, instead of being dependent on warm inbound.
• Be able to talk credibly about flaky tests, CI pain, and Playwright vs. Cypress. You don't need to be an engineer, but you do need domain empathy.
• Possess strong written communication skills, with the ability to craft short, sharp messages that get replies.

Nice to have:

• A QA or SDET background – you've felt the pain yourself before moving to sales or BD.
• Exposure to security/compliance objections – enough to pre-empt and route.
• Content skills – your LinkedIn posts get engagement, not just your DMs.
• Experience as one of the first 10 employees at a startup.

#LI-REMOTE 
#LI-KT1