About Us

Stephen Farrell O’Callaghan is a dynamic and forward-thinking leader with over 20 years of experience in driving strategic growth and delivering bespoke recruitment solutions. As Managing Director of Clark , Stephen is responsible for overseeing the company’s operations and charting its path to continued success. With a strong emphasis on strategic growth and client satisfaction, Stephen has been instrumental in expanding Clark's Recruitment Process Outsourcing (RPO) offerings, providing scalable solutions for global organisations from Ireland. His leadership has also been key in delivering RPO services to prominent public sector bodies, driving operational efficiency and enhancing performance across various industries. A passionate advocate for community engagement and corporate social responsibility (CSR), Stephen champions sustainable business practices that create value for both organisations and the communities they serve. Stephen’s expertise spans project management, executive search and recruitment, outsourced business solutions, psychometric profiling, and business development. He holds an Honours Degree in Marketing from Dublin Business School, a Diploma in Behavioural Science, an IMI Diploma in Digital Marketing & Social Media, and is certified as a Qualified Psychometric Assessor through IMX Global. Under Stephen’s leadership, Clark continues to innovate and deliver cutting-edge recruitment solutions to businesses of all sizes. Whether scaling global operations, expanding local teams, or refining recruitment processes, Stephen is committed to helping organisations attract the talent that drives long-term success. For strategic guidance or to enhance your recruitment efforts, reach out to Stephen today!

Sarah Mortimer is an experienced recruitment leader with over 18 years in the industry, driving innovation and delivering tailored people solutions. As Director of People & Recruitment and Co-Owner at Clark, she oversees recruitment operations, leading the team across temporary and permanent divisions while ensuring exceptional service delivery. Known for her hands-on approach and strategic mindset, Sarah focuses on building lasting client relationships, improving processes, and implementing recruitment technologies. A Fellow of the Employment & Recruitment Federation (ERF), she leverages her expertise in talent strategy, contract management, and automation to help businesses attract top talent and stay ahead of market trends. Under Sarah’s guidance, Clark continues to deliver customised recruitment solutions to businesses of all sizes. For expert recruitment advice or to find the right talent to power your business, connect with Sarah today.

Niamh is a key member of Clark’s Executive Search team, bringing over 20 years of experience across Accountancy, Finance & Taxation, HR, Risk & Compliance, Banking & Funds, and Science. Holding a degree in Economics and English from Maynooth University, she has worked across diverse sectors, including tech start-ups, SaaS organisations, and the setup of an SSC for a European division. With a deep understanding of talent acquisition at the highest levels, Niamh partners with businesses to identify and secure senior executives who drive growth and success. She is passionate about delivering strategic hiring solutions while helping candidates navigate their next career move with confidence. Niamh recruits for Qualified and part-qualified accountants, finance support, payroll, credit control, HR roles (Administrator to Manager), TA/Recruitment roles.  

With a career built on connecting people, solving problems, and getting things done, Máire thrives at the intersection of talent and opportunity. From early roles in customer service and sales to running her own fitness business, she has developed a keen understanding of people, motivation, and performance. Since 2019 at Clark Recruitment, Máire has channelled this experience into delivering seamless recruitment solutions, balancing the fast pace of office support staffing with a focus on relationships, strategy, and results. Mentoring colleagues, guiding clients, and matching the right people to the right roles isn’t just a job—it’s her craft.

James is a dedicated recruitment professional with experience across a wide range of industries. Known for exceptional networking abilities and a people-first approach, James specialises in building strong relationships and connecting the right talent with the right opportunities. With a deep understanding of diverse industry landscapes, James leverages their adaptability to provide tailored recruitment solutions that align with client needs and exceed expectations. Whether working with established businesses or start-ups, James consistently delivers high-quality results, drawing on their expertise in talent acquisition and people management. Passionate about fostering growth, James takes pride in not only matching candidates with roles but also contributing to the long-term success of individuals and organisations. His proactive, results-driven approach ensures that every placement is a step towards achieving shared goals. Outside of recruitment, James enjoys golfing, hiking and attending industry conventions and events which further enhance their ability to connect and engage with a diverse range of people. James recruits for Warehouse, transport, inventory, logistics coordination/management, supply chain roles, procurement support, general operatives, production support.Additional sectors: retail sales roles, hospitality roles .  

With almost 10 years experience in Area business management, mentoring and coaching, Siobhan has seamlessly transitioned her career from retail management to become a trusted recruitment partner. While living in Brisbane, Australia, she specialised in recruiting for both public and private sectors, including hospitals, aged care homes, and community care organisations. Siobhan's wealth of knowledge positions her as a valuable ally for companies seeking top talent. Recognising the significance of culture fit, she ensures that each candidate aligns seamlessly with the client's ethos, promoting longevity and job satisfaction. As a people-oriented professional, Siobhan brings a personalised touch to every recruitment engagement, establishing herself as a reliable and strategic partner for companies seeking exceptional talent on a permanent or contract basis, in the areas of Administration, customer service, PA/EA, reception, sales roles (inside, field, account management), marketing roles (exec to manager level). Reach out to Siobhan today on 045 881 888 or siobhan@clark.ie.

Jessica brings over 20 years of recruitment and client management experience to her role as Senior Recruitment Partner at Clark. Specialising in engineering, energy, technology, and manufacturing, she has a strong track record of connecting businesses with top talent while building lasting relationships across diverse sectors. Over the course of her career, Jessica has led recruitment divisions, developed new business pipelines, and delivered strategic hiring solutions for global, pan-European, and Irish organisations. She has successfully partnered with high-profile clients to design recruitment strategies that not only meet immediate needs but also drive long-term growth. Known for her positive outlook and quick ability to bounce back from challenges, Jessica combines professionalism with a down-to-earth approach. She believes recruitment is about people first, enjoys building genuine connections, and never underestimates the power of having fun and sharing a laugh along the way. Jessica recruits for Engineering (mechanical, electrical, process, manufacturing), maintenance, production, quality, technicians, technical support, engineering project roles.

Chloe is a dedicated Recruitment Partner with over four years of experience in the recruitment industry. Known for her friendly and professional approach, Chloe has built a strong reputation for sourcing top talent, screening CVs, and guiding candidates through every stage of the hiring process. Her career began in customer service, where she developed exceptional communication, organisation, and multitasking skills—qualities that now define her success in recruitment. Chloe has worked in a fast-paced agency environment where she managed job advertisements, coordinated interviews, and handled administrative tasks with precision and care. She is passionate about building meaningful connections and ensuring both clients and candidates feel supported and understood. She thrives in collaborative environments and is known for her reliability, attention to detail, and goal-driven mindset. Whether structuring CVs or managing candidate pipelines, Chloe approaches every task with professionalism and patience. Chloe recruits for Laboratory, quality, validation, regulatory affairs, medical device/biopharma operations support, specialist scientific roles.

Mike is an HR, Recruitment Operations and Marketing Specialist, supporting organisations with structured interview processes and work permit management. He sits on interview panels, provides candidate assessments, and advises hiring managers on selection strategies. Mike ensures fairness and promotes diversity, equity, and inclusion (DEI) throughout shortlisting, job advertising, interviewing, and marketing. He also leads marketing and brand development initiatives for Clark Recruitment and Clark Executive Ltd, including PR, digital media, and recruitment campaigns, helping to strengthen the company’s presence, attract top talent, and maintain a positive, professional brand image.  

With over 17 years’ experience in human resources and recruitment project management Noreen holds a MA in Sociology and a BA in English and Sociology from Maynooth University. With a Professional Diploma in Immigration and Asylum Law in Ireland from City Colleges and a Cert in Admin and Digital Skills from Griffith College Noreen uses her excellent analytical and interpersonal skills to ensure that all projects and recruitment process outsourcing in Clark are co-ordinated to an exceptional standard. A specialist in Immigration Law Noreen has extensive experience in the Irish Immigration process working with companies to successfully navigate the Work Permit application process and provide invaluable advice on all aspects of the Immigration process. For general queries, contact noreen@clark.ie and for Work Permits & Related Immigration Advice, reach out to workpermits@clark.ie.

Niamh is a Recruitment professional working exclusively with one of our Public Sector Client Accounts, delivering end-to-end recruitment solutions. Niamh partners closely with hiring managers to ensure recruitment processes are delivered efficiently, professionally, and in full compliance with organisational policies and Irish public sector recruitment guidelines. She provides ongoing guidance and support to both hiring managers and candidates, ensuring a positive experience throughout the recruitment lifecycle while maintaining fair, transparent, and inclusive hiring practices.

Niamh holds a Bachelor of Business Administration (BBA) in Equine Business from Maynooth University and, in 2025, completed the Employment & Recruitment Federation Certificate in Recruitment Practice and the CIPD Advanced Diploma in Human Resource Management at the National College of Ireland, strengthening her expertise in recruitment, talent acquisition, and HR best practice.

Kim is an experienced recruitment professional with over four years of expertise across public sector recruitment and talent acquisition. Currently supporting a large public sector account, she manages end-to-end recruitment processes, serving as a key point of contact for hiring managers and candidates while ensuring a seamless and compliant recruitment experience aligned with public sector guidelines.

She has extensive experience in stakeholder engagement, candidate sourcing, interview coordination, onboarding, and recruitment administration. Drawing on her strong organisational skills, attention to detail, and relationship-building abilities, Kim consistently delivers efficient and high-quality recruitment solutions in fast-paced environments.

Kim is also committed to her professional development and is currently pursuing a Bachelor of Arts in Human Resource Management, alongside a CIPD Diploma in People Management. She also holds a Certificate in Recruitment Practice from the Employment & Recruitment Federation further strengthening her expertise in HR and talent management.

Bernie’s vast experience in Payroll and Accounts covers a full range of sectors from manufacturing, to finance, to retail. Clients in these businesses depend on her to manage their Payroll systems and ensure their personnel are paid correctly and on time. In addition to out-source Payroll solutions, Bernie’s technical expertise includes project management, finance and book-keeping. Above all, her calm professionalism and personable manner ensures an excellent service.

Do you need a dedicated payroll expert who can manage your temporary and outsourced payroll services? Look no further. Meet Jacinta, our payroll management guru with years of experience in accounts and payroll. Jacinta leads the distribution coordination for our public sector clients and credit control management for our private clients. Her strong project management skills have helped us provide impeccable payroll processing services to our national and global clients. As a member of the Irish Payroll Association, Jacinta ensures that we are up-to-date with the latest industry trends and regulations. Jacinta's expertise in payroll management has been instrumental in helping us provide top-notch outsourced managed payroll services within our Managed Service Solutions Division. Her passion for delivering excellent service has made her an invaluable member of our team.