Senior Social Worker - Mental Health

Liquid Personnel is recruiting an experienced Senior Social Worker for its client’s Mental Health Team based in Cardiff. This is a full‑time agency role offering £35–£38 per hour (Umbrella) and the opportunity to work within a well‑established Community Mental Health Team supporting adults with complex mental health needs.

This is an excellent opportunity for a skilled and motivated Social Worker looking to take the next step in their career. As a Senior Social Worker, you will play a key role in supporting the Team Manager, supervising colleagues, managing complex and high‑risk cases, and driving high‑quality practice to achieve positive outcomes for service users and carers.

• Competitive pay rate of £35–£38 per hour Umbrella
• Supportive management structure and regular supervision
• Opportunity to work within a well‑established Community Mental Health Team
• Meaningful and rewarding work supporting adults with complex mental health needs
• Flexible working arrangements where applicable
• Ongoing professional development opportunities
• Dedicated support from an experienced recruitment consultant

As a Senior Social Worker within the Mental Health Team, you will:

• Manage a complex caseload of adults experiencing significant mental health needs.
• Complete strengths‑based assessments, care planning, reviews, and risk assessments.
• Undertake safeguarding investigations and interventions in line with legislation, policy, and statutory guidance.
• Support individuals to maximise their independence, wellbeing, and quality of life.
• Work collaboratively with families, carers, health professionals, and partner agencies to coordinate effective support plans.
• Prepare reports and attend decision‑making forums, panels, safeguarding meetings, and professional reviews.
• Provide casework supervision and professional guidance to Social Workers and Social Work Assistants.
• Support newly qualified Social Workers, students, and colleagues managing complex cases.
• Undertake complex and high‑risk work, including cases involving risks to liberty, wellbeing, and personal safety.
• Contribute to service development, training initiatives, and continuous practice improvement.
• Assist with duty planning and deputise for the Team Manager when required.
• Monitor outcomes and identify trends relating to unmet or inappropriately met needs.
• Maintain accurate records and effectively utilise corporate systems and databases.

To be successful in this role, you must have:

• Degree in Social Work or equivalent qualification
• Current Social Care Wales registration
• Enhanced DBS clearance
• Full UK driving licence and access to a vehicle
• Eligible to work in the UK
• Significant post‑qualified experience within Adult Social Care or Mental Health Services
• Experience managing complex caseloads within a statutory setting
• Experience supervising or supporting colleagues
• Strong understanding of mental health, safeguarding, and social care legislation
• Excellent assessment, risk management, analytical, and report‑writing skills

• Approved Mental Health Professional (AMHP) qualification
• Experience working within a Community Mental Health Team
• Experience supporting staff performance and quality improvement initiatives
• Ability to speak Welsh or other community languages

If you consider yourself to have a disability or require any reasonable adjustment during the recruitment process or within the workplace, please highlight this at the earliest opportunity by contacting our team. With this information, we will provide appropriate support to you throughout the process and into your work placement.

We are unable to support or accept applications from candidates who are residents within the Red or Amber list of the Code of Practice for the International Recruitment of Health and Social Care Personnel in England, based on the World Health Organisation (WHO) Workforce Support and Safeguard List.

BH – 200777
GH – 35531