• UK job board CV-Library has appointed Barry Sacks as global chief technology officer, from 1 June. Sacks brings 25 years of experience leading a variety of start-up, SME and blue-chip organisations, having worked throughout the UK, Europe, Australia and the US.

• Keystream, a healthcare, government and charity IT recruitment consultancy, has strengthened its management team and diversified into new markets.

Natalie Drew heads up a new life sciences desk and Richard Roberts-Jones is launching a health-tech/fit-tech offer. Georgia Nield will be working on new business development across Keystream to open up new accounts, allowing teams to focus on delivery.

• Property recruitment agency Rayner Personnel has appointed Russell Jervis managing director – estate agency division. Most recently MD at independent estate agency Spicerhaart, Jervis will be responsible for attracting individual recruitment agencies to partner with Rayner as licensees to leverage the brand.

Jervis also runs a consultancy that will sit alongside his new role and allow him to advise individuals on the most appropriate type of role for them.

• Executive search and talent consulting firm Sheffield Haworth welcomes Sam Wallace as managing director to the consulting, technology & services practice. Based in Los Angeles in the US, Wallace will be responsible for leading and growing the practice across the Americas.