Senior Advance Union Caseworker – Organiser

Santander

Caseworker supporting union members at Santander UK, handling cases across various locations and advocating for employee relations.

Posted 7/10/2026full-timeMilton Keynes • 🇬🇧 United KingdomSeniorWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates expertise in handling disciplinary, grievance, and performance cases while effectively managing relationships and advocating for members. Strong communication skills and a commitment to inclusive practices are essential for success in this role.

Highest-signal resume keywords

Experience In Employee RelationsHandling Disciplinary CasesExcellent Verbal And Written CommunicationAbility To MultitaskCommitment To Inclusive Practices

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

Case HandlingReview Of Employment ProcessesUnderstanding Of Workplace PoliciesCoaching And Developing Others

Soft Skills

Relationship ManagementMultitaskingCommitment To Fair Representation

Industry Keywords

Trade UnionAdvocacyMember RecruitmentEngagement ActivitiesPerformance Management

About the role

Key responsibilities & impact

Representation & Case Handling for members in formal and informal settings
Handling disciplinary, grievance, and performance cases
Review (as required) of employment processes and workplace policies
Relationship Management on behalf of Advance Union
Organising advocacy as a foundation of member recruitment

Requirements

What you’ll need

Experience of working for a Trade Union or in an Employee Relations role (preferred)
Experience handling disciplinary, grievance, and performance cases (preferred)
Sound understanding of employment processes and workplace policies (preferred)
Excellent verbal and written communication skills (required)
Ability to multitask and manage multiple cases at once (required)
Experience delivering or supporting engagement activities and campaigns (preferred)
Demonstrates commitment to inclusive practices and fair representation (required)
Experience of coaching and developing others (preferred)

Benefits

Comp & perks

Wellbeing that goes beyond work — we work with a range of wellbeing partners across our 4 pillars of wellbeing (physical, mental, social and financial) to give you access to a suite of apps, discounted gym and fitness access, weekly online classes, flexible healthcare and mental health support.
Support for every life stage — from menopause and pregnancy to parenthood and beyond, with enhanced family leave, childcare options and tailored wellbeing support.
Time to give back through volunteering opportunities that let you make a difference in the communities we serve.
Global growth opportunities to shape your career, learn new skills and explore what’s possible across our international network.