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 has over 20 years' experience in the world of Accounts and holds her degree in Economics and English from Maynooth University. A seasoned professional, she has worked across several sectors including tech start-ups, SaaS organisations, was involved in the setup of an SSC in one of their European divisions and more recently worked in an Irish manufacturing and export business. She leads recruitment in the areas of Accountancy, Finance & Taxation, HR, Risk & Compliance, Banking & Funds, Science and Senior Executive Search within Clark and looks forward to partnering with clients while assisting candidates achieve their professional career goals.

A proactive and energised professional, Máire emanates from a background in account management, customer support and business development. Working as part of the Temporary Recruitment team, Máire prides herself on her ability to empathise with both Client and Candidate to recruit to their specification and requirements. She thrives on the fast-paced environment that lends itself to temporary recruitment.

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.  

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 Office Support, Sales, Construction & Engineering , Project Management and IT. Reach out to Siobhan today on 045 881 888 or siobhan@clark.ie.

With over 14 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.

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.