John Hayes, Principal
Constantine Law was founded by John Hayes, one of London's leading employment lawyers. John advises UK corporates in the financial services, employment agencies, retail and construction sectors.
He is also one of London's leading solicitors in restrictive covenant disputes. John has a very solutions orientated and commercial approach.
John's client base is entrepreneurial and this prompted him to set up Constantine Law. He is recognised in the Legal 500 and has previously headed the London employment team of a large national law firm.
John has particular expertise in business protection and works closely with some of the leading barristers in the field to protect his client's commercial interests. He has great experience in the arena of a-typical working, including consultancy agreements, IR35, CIS and the tax implications of each. He works closely with leading accountants to provide joined-up solutions for his clients.
John is a member of the Employment Lawyers Association and the leading Irish entrepreneurial organisation, the Irish International Business Network (IIBN). He is also an active member of the Institute of Directors (IOD). John is a contributor to the Huffington Post and appears regularly on news media including the LBC and Television. He is a regular contributor to leading trade magazines on employment matters.
John is married to Ceri, with three children, Joseph, Theo and Aoife. He is a member of the Hampstead Triathlon Club and raises money through Olympic distance triathlons. His other main passions are public affairs (standing in the 1997 General Election) and London's cultural scene.
Christopher Tutton, Partner
Christopher Tutton is an employment lawyer who joined Constantine Law in August 2016, having previously headed the London employment team of a large national law firm.
Chris works with clients across a range of sectors, including financial services, recruitment, property and construction – providing strategic employment law advice as well as representation in Employment Tribunal and High Court litigation. His advice is highly prized by his clients for its commerciality and focus on problem-solving.
Chris has a great deal of experience advising on employment law aspects of transactions and regulatory issues in the financial services and recruitment sectors.
Chris is a regular contributor to leading HR publications such as the Employment Law Journal, and an experienced commentator on national media.
Chris is married to Stephanie and they have a daughter, Helena. In his spare time he plays Spanish and electric guitar and performs a number of live music gigs every year.
Omer Simjee, Partner
Omer is a highly experienced employment and business immigration lawyer. He provides practical, employment law solutions to corporate clients on personnel issues.
A typical day would see him involved in complex tribunal litigation, advising on strategic HR matters and large-scale redundancies, reorganisations and outsourcing.
His extensive experience includes acting for multi-national organisations, financial institutions, IT companies, recruitment agencies, facility management providers and manufacturing businesses.
He has particular expertise in TUPE, boardroom disputes, top-level executive exits and advising on restraint of trade matters; clients appreciate his straight-talking and pragmatic approach.
He is also a highly experienced tribunal advocate. His strength lies in acting for company respondents and senior management claimants.
Omer leads the firm’s national business immigration practice, which supports company clients in bringing overseas experts to work for them in the UK, whilst also ensuring that his clients comply with their obligations to prevent illegal working.
Clients benefit greatly from Omer’s training on immigration issues and he has built up a strong reputation in helping them plan-ahead to deal with Brexit-related issues.
Caroline Glacken, Senior Associate
Caroline Glacken joined Constantine Law in January 2016 having previously worked in the London office of a large national law firm.
Caroline is an experienced employment lawyer and a member of the Employment Lawyers Association. Caroline is adept at providing legal support to HR teams, including support through complex internal investigations and processes and preparing contractual documentation and handbooks. Caroline has significant experience in Employment Tribunal litigation including unfair dismissal and complex discrimination proceedings as well as High Court Litigation in relation to injunctive relief and business protection.
Caroline is also experienced in providing integrated business immigration solutions to corporate clients who want to sponsor their workers or require business visitor visas. Caroline is a member of the Immigration Law Practitioner's Association and works closely with immigration barristers to achieve great results for clients.
Caroline is an active member of Irish business networks in London; the Irish International Business Network (IIBN) and The London Irish Construction Network (TLICN). Caroline is also a Trustee of Mind Yourself, a charity dedicated to improving the physical and mental health of the London Irish community.
Caroline lives with her partner Jeremy in London. She has a real passion for travel and food. In her spare time Caroline enjoys the theatre, walking and spending time at her home in France.
Matthew Brain, Senior Associate
Matthew started his career as a solicitor in 1991, specialising in employment law from an early stage. He became a partner at a leading national firm of solicitors in 2003 where he ultimately headed the Northern employment law team.
In January 2012, Matthew embraced his inner-entrepreneurial spirit and left the (relative) comfort of private legal practice and established his own successful HR and Employment Law consultancy business, where his clients have continued to benefit from what one client recently called his “rare blend of legal expertise and pragmatism”.
Matthew joins Constantine Law with over 25 years` experience of advising clients of all sizes in both the private and public sector on all aspects of employment law, and has particular expertise as an Employment Tribunal advocate.
Matthew also has highly regarded experience in the field of the TUPE 2006 Regulations and business acquisitions and outsourcing, as well as in presenting seminars to clients and providing bespoke in-house training for senior employees and in-house HR teams.
Matthew lives in Yorkshire with his wife Sarah, and two young boys Samuel and Oliver. A former National League rugby player, Matthew now participates in a range of less painful sports such as badminton and squash, and is a keen classical and electric guitarist.