Get AI-powered advice on this job and more exclusive features.About CalypsoAICalypsoAI, established in 2018, is dedicated to securing the future of artificial intelligence by enabling enterprises to innovate confidently with cutting-edge security and compliance solutions. Our mission is to forge a secure path for safe AI adoption, empowering organisations to leverage AI technologies responsibly and without risk.About CalypsoAICalypsoAI, established in 2018, is dedicated to securing the future of artificial intelligence by enabling enterprises to innovate confidently with cutting-edge security and compliance solutions. Our mission is to forge a secure path for safe AI adoption, empowering organisations to leverage AI technologies responsibly and without risk.At CalypsoAI, we believe that securing the future of AI demands innovative thinkers from diverse disciplines and backgrounds. We are committed to building an elite team to advance groundbreaking technology and ensure businesses and society thrive with confidence.Role Summary:CalypsoAI is seeking a creative, analytical, and meticulous Prompt Engineer to join our dynamic team in Dublin. In this role, you will specialise in designing, refining, testing, and evaluating prompts to interact effectively and securely with Large Language Models (LLMs) and our cutting-edge agentic systems. Your expertise will be crucial in enhancing the capabilities of our AI security platform – contributing directly to our AI red-teaming tools and informing the design of robust AI defences.Key Responsibilities:Design, develop, and iterate on high-quality prompts for various LLMs and agentic systems to achieve specific goals related to AI security testing, red-teaming exercises (e.g., simulating prompt injection, jailbreaking, data elicitation), and defence validationAnalyse LLM outputs, identify failure modes or unexpected behaviours, and systematically refine prompts to improve performance, reliability, and safetyDevelop and experiment with advanced prompting techniques (e.g., few-shot, chain-of-thought, structured prompting, role-playing) to maximise model capabilities relevant to security assessmentsCollaborate closely with AI Researchers and Engineers to integrate effective prompts into CalypsoAI's security platform, red-teaming agents, and defensive solutionsCreate and maintain a library of effective prompts, techniques, and best practices for internal useStay abreast of the latest developments in LLMs, prompt engineering methodologies, agentic AI frameworks, and AI security vulnerabilitiesDocument prompt design processes, experimental results, and performance evaluations clearlyAssist in evaluating the effectiveness and security implications of different prompting strategiesRequired Qualifications:Bachelor's degree in Computer Science, Data Science, Linguistics, Cognitive Science, Human-Computer Interaction, or a related field, OR equivalent significant practical experience in prompt engineeringProven hands-on experience designing, testing, and refining prompts for large language models (e.g., GPT series, Claude, Llama, etc.)Strong understanding of LLM capabilities, limitations, common failure modes, and alignment techniquesFamiliarity with various prompt engineering techniques and strategiesExcellent analytical and problem-solving skills with meticulous attention to detailExceptional written and verbal communication skillsA keen interest in Artificial Intelligence, Natural Language Processing, and particularly AI Security.Preferred QualificationsDemonstrable experience applying prompt engineering, specifically within an AI security, red-teaming, or vulnerability testing contextExperience interacting with or developing for agentic AI systems or frameworks (e.g., LangChain, Auto-GPT concepts)Basic scripting skills (e.g., Python) for prompt testing automation or analysisFamiliarity with methods for evaluating LLM performance and safetyExperience working with APIs for major LLM providersA portfolio of examples showcasing creative and effective prompt engineering workUnderstanding of adversarial attacks against NLP modelsLife at CalypsoAIAt CalypsoAI, we believe that our people are the driving force behind our success. We foster a dynamic, collaborative, and inclusive work environment where innovation thrives, and employees feel empowered to make a real impact. Whether you’re working remotely or at one of our offices, we ensure you have the tools, flexibility, and support to do your best work.LocationWork on a hybrid schedule:Dublin Office: ThursdaysRemotely or Dublin Office: Monday, Tuesday, Wednesday and FridayOur Benefits & PerksWe offer a competitive benefits package designed to support your well-being, growth, and work-life balance: 25 Days Annual Leave – We believe in the importance of rest and recharge. Enjoy generous time off to relax and pursue personal passions. Fully Covered Health & Dental Insurance – Your well-being is our priority. We provide comprehensive health and dental coverage to keep you and your family protected. Pension Plan (Up to 3% Employer Match) – We invest in your future with a competitive pension plan, matching contributions up to 3%. TaxSaver & Bike to Work Scheme – Save on commuting costs with our tax-efficient travel benefits, whether you prefer public transport or cycling. Income Protection – We offer financial security and peace of mind in the event of unforeseen circumstances. Hybrid Working – We embrace flexibility, offering a hybrid work model that allows you to balance in-office collaboration with remote work. Dublin City Centre Office – Our modern, conveniently located office in the heart of Dublin provides an inspiring space for collaboration and connection. Catered Lunch Twice a Week – For those working from the office, we provide delicious, catered lunches twice a week to fuel your productivity and connection with colleagues. Quarterly Social Events – We love bringing our teams together! From team outings to special events, we ensure there are plenty of opportunities to connect and have fun. Annual CalypsoAI Day – Each year, we dedicate a special volunteering day for employees to contribute to causes that matter. Learning & Development Platforms – We support continuous growth with access to online learning platforms, helping employees upskill and stay ahead in their careers. Work from Anywhere (Up to 3 Weeks Per Year) – Enjoy the freedom to work from anywhere in the world for up to three weeks each year. Increased Benefits with Tenure – At CalypsoAI, we recognise and reward long-term dedication. As you grow with us, you'll enjoy enhanced pension contributions and additional annual leave, ensuring your commitment is recognised and supported.At CalypsoAI, you’ll be part of an ambitious, fast-growing team shaping the future of AI security. If you're looking for a role where you can make an impact while enjoying a supportive and rewarding work environment, we’d love to hear from you!Powered by JazzHRX31DiUF8IJSeniority levelSeniority levelMid-Senior levelEmployment typeEmployment typeFull-timeJob functionJob functionEngineering and Information TechnologyIndustriesInternet PublishingReferrals increase your chances of interviewing at CalypsoAI by 2xGet notified about new Prompt Engineer jobs in Dublin, County Dublin, Ireland.Dublin, County Dublin, Ireland 5 days agoDublin, County Dublin, Ireland 3 days agoDublin, County Dublin, Ireland 4 days agoData Engineer (TAX free salary, relocation to the UAE)Dublin, County Dublin, Ireland 6 days agoDublin, County Dublin, Ireland 1 month agoDublin, County Dublin, Ireland 2 days agoDublin 2, County Dublin, Ireland 4 months agoDublin, County Dublin, Ireland 2 weeks agoDublin, County Dublin, Ireland 3 days agoDublin, County Dublin, Ireland 3 weeks agoPartner Solutions Engineer, gTech Ads SellsideDublin, County Dublin, Ireland 2 weeks agoDublin, County Dublin, Ireland 3 days agoDublin, County Dublin, Ireland 1 month agoDublin, County Dublin, Ireland 1 month agoWe’re unlocking community knowledge in a new way. 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