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Salary
≈ $48k – $116k per year (Estimated)
Location
Hybrid (London, United Kingdom)
Seniority
Middle · 3+ years exp
Employment
Full-Time

Confirmed on the employer's own hiring board on Sep 29, 2026. First seen by Alion on Sep 29, 2026.

Overview
Company
Impact
Profile match

About Sibylline

Sibylline is a leading intelligence and strategic risk consultancy in the security sector. Since 2010 we have supported businesses, governments and NGOs through the provision of high-quality risk analysis, due diligence and consultancy services. The firm provides an innovative, entrepreneurial and fast-growing working environment, offering employees ever greater exposure to high-profile clients and challenges. Sibylline offers fantastic opportunities for career progression within a successful company, and we aim to help our employees to build their own personal profiles as well-regarded analysts within the broader industry.

Key attributes of Sibylline employees are:

  • Self-motivated, and auto-improving individuals who can couple initiative and boldness with good judgement
  • Excellent written and spoken English
  • Clarity of thought and analytical flair
  • Strong, demonstrable interest in security and intelligence
  • The ability to work under pressure, demonstrate leadership when required but also be able to collaborate effectively in teams
  • Excellent attention to detail

About the role

We are looking for an experienced HR Manager to join our People Team. Based in London, and reporting to the Senior HR Business Partner, the successful candidate will provide comprehensive administration and HR support to the People Team to ensure a high-quality HR service is delivered to the business and our employees.

The ideal candidate will be seeking a position to provide them with an opportunity to gain knowledge and experience through working in a diverse, generalist HR environment. The position involves working on a wide variety of day-to-day tasks, including recruitment, payroll, performance management, employee relations and maintenance of HR policy and procedures. The successful candidate will have great attention to detail, the ability to multitask, work well under pressure, and have a can-do and enthusiastic attitude.

Responsibilities

  • Support in the development and implementation of HR policies and procedures, including changes and enforcement, to ensure organisational practices develop, engage and retain employees, making recommendations for enhancements as needed; leverage change management skills to assist with organisational adaptation
  • Accurately enter payroll and employee expense data, process payroll according to established timelines, procedures and best-in-class standards across various systems
  • Leverage people data and analytics to formulate well-rounded recommendations when providing guidance or delivering initiatives and programmes
  • Support in the design, development and implementation of job analyses, competency model identification and skill development programmes and strategies tailored to meet the specific needs of the organisation and its people
  • Effectively use principles and best practices in coaching, guiding and engaging a diverse workforce, acting as a sounding board and recommending actions to contribute to employee and organisational success
  • Anticipate compliance risks and develop mitigation strategies
  • Ensure personnel records are maintained accurately through the company's HRIS
  • Support in the implementation and management of continuous performance coaching and goals across the organisation that help employees grow and develop
  • Ensure all processes and programmes are well documented, have key performance indicators and measurable methodologies implemented
  • Collaborate with Talent Acquisition, Finance and Embedded Operations teams to ensure efficient and accurate completions of job requisitions, personnel changes, onboarding and offboarding
  • Responsible for the accurate processing of the full employee life cycle processes and administration, including, but not limited to, new starters, promotions, transfers, leavers, and employee benefits management.
  • Managing the registration process for new starters, including checking and collecting right-to-work documents and running the HR induction and onboarding process.
  • Requesting references for new employees, as well as providing references for current or previous employees.
  • Supporting the execution of ongoing and new company-wide HR Initiatives.
  • Assisting with Talent acquisition, including but not limited to: filtering and shortlisting applications, arranging interviews and assessments, using our Applicant Tracking System to process offers of employment, and generating employment contracts.
  • Handling disciplinary and grievance procedures in line with legislation and company policies.
  • Other duties as assigned.

Requirements

  • Bachelor’s degree in Human Resources, Business Administration, Business Studies, or related field; or equivalent professional experience
  • Minimum three years of professional experience in Human Resources or a related function.
  • Ideally, CIPD qualified or willing to become CIPD qualified
  • Extensive knowledge of HR policies, related laws and best practices - ideally with Global experience
  • Advanced skills and ability within project management, financial, payroll, HRIS systems and accounting programmes (e.g. HiBob), including advanced-level proficiency in MS Excel
  • Strong project management skills, including analysis, planning, prioritisation, attention to detail and the ability to manage multiple projects simultaneously
  • Excellent writing and presentation skills; knowledge and experience in the design and execution of communications
  • Ability to demonstrate the values of the organisation and champion Sibylline’s products, services and support of a global workforce
  • Experience working through change management for large-scale transformation initiatives.

Interview Process

  • Initial call with our Talent Acquisition team member
  • 30-minute video interview with the hiring manager
  • Panel interview with some of the team members and hiring managers at Sibylline

Research indicates that certain groups are less likely to apply for a position unless they meet every single requirement. If you feel you meet some of the requirements and can offer a unique perspective to this role, we strongly encourage you to apply-you might be the perfect fit we're looking for!

Sibylline is committed to the recruitment and selection of candidates without regard for sexual orientation, gender, ethnicity, age, political beliefs, culture and lifestyle. We are committed to fostering a business culture that reflects these values and promotes equal opportunity.

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