Employee Relations Specialist in London

Flatpay is one of Europe's fastest-growing fintech companies and we've recently launched in the UK.

We're looking for an Employee Relations Specialist to join our UK People team. This is a hands-on, high-judgement role supporting Flatpay's continued growth with a clear focus on ER case management, employment law application, and people risk - from probationary matters and sickness absence through to grievances, right to work compliance, data governance, and settlement negotiations. You'll be a trusted first point of contact for managers across the UK business, bringing the legal rigour and commercial judgement to navigate complex people situations confidently and correctly.

Responsibilities

• Case management & employment law
  • Own and manage a varied caseload of ER matters end-to-end: performance, absence, conduct, probationary reviews, and dismissals.
  • Advise managers and leaders on legally sound approaches, balancing commercial pace with employment law compliance.
  • Draft outcome letters, PIPs, settlement agreements, and correspondence to a high standard — clear, human, and legally precise.
  • Manage protected conversations and settlement negotiations, including preparing documentation and coordinating with external solicitors.
  • Support on Equality Act considerations, including reasonable adjustments during absence and performance processes.
• Grievances
  • Manage formal and informal grievance processes end-to-end, advising on the appropriate route and ensuring consistent application of policy.
  • Support or conduct grievance investigations where required, including scoping, interviewing, and producing well-reasoned outcome letters.
  • Advise on grievances that overlap with other ER matters — discrimination, harassment, or whistleblowing — and escalate appropriately.
  • Coach managers on handling informal concerns before they escalate to formal grievance.
• Probation & early-stage performance
  • Support managers in handling probationary reviews where performance, conduct, or attendance is a concern.
  • Advise on the correct process for extending or terminating probation, ensuring decisions are well-documented and legally defensible.
  • Draft probationary outcome letters and ensure accurate, timely communication to employees, including correct notice periods and final pay.
  • Handle post-termination queries from former probationary employees, including payroll discrepancies or disputed process steps.
  • Flag where Equality Act considerations may affect the approach.
• Right to work & immigration compliance
  • Advise on right to work cases where additional scrutiny is required, including flagged documents, complex visa types, or unclear eligibility.
  • Support the TA team with the correct approach where a candidate or employee's right to work status raises a legal question.
  • Liaise with Legal or immigration advisors where sponsored workers or more complex immigration situations arise.
  • Ensure advice given is consistent, well-documented, and aligned with current Home Office guidance.
• Manager coaching & capability building
  • Act as a trusted first point of contact for managers navigating people issues — helping them handle situations correctly and with confidence.
  • Coach managers through live ER cases, building their capability to handle similar situations independently in future.
  • Identify patterns in case types or management behaviours that point to a broader training or process need.
  • Support the development of practical manager guidance, toolkits, and templates that make good ER practice easier to apply day-to-day.
• Data compliance & information governance
  • Respond to and manage suspected data breaches involving employees or former employees, coordinating with Legal and ICO reporting obligations as required.
  • Maintain accurate employee records and ensure ER case documentation meets GDPR standards.
  • Handle third-party correspondence involving employee data (e.g. DWP/DEA notices, court orders, statutory bodies).
• Broader people operations
  • Support the Head of HR UK on policy development, handbook updates, and UK-specific employment frameworks.
  • Partner with cross-functional stakeholders including Finance, Legal, and commercial leadership.

Skills & Attributes

• High judgement and confident handling complex ER cases end-to-end with appropriate levels of autonomy.
• Strong working knowledge of UK employment law and HR best practice.
• Able to draft clearly and precisely — outcome letters, PIPs, and settlement agreements that are legally sound and human in tone.
• Commercially minded — understands the business context behind HR decisions and communicates in those terms.
• Strong communicator: direct without being blunt, empathetic without being vague.
• Organised and delivery-focused, able to manage a busy caseload without losing attention to detail.
• Comfortable working in a fast-moving, scaling business where processes are still being built.

Our Values

• Happy Humans — We bring energy to our work and create teams people enjoy being part of.
• No Assholes — We perform at a high level while treating colleagues and customers with respect.
• It's Our Business, Own It — Everyone takes responsibility and manages their work like it's their own business.
• Start With No — We challenge ideas, think commercially and focus on what truly creates value.
• Sky-High Ambitions — We set bold goals and expect people to keep raising the bar.
• The Best Argument Wins — Titles don't decide outcomes. We debate openly to reach the best decisions.

Background & Requirements

• Demonstrable experience managing ER cases end-to-end in a generalist or specialist HR role.
• Strong working knowledge of UK employment law, including the Equality Act 2010, Working Time Regulations, and GDPR.
• Experience advising on right to work and immigration compliance preferred.
• Fluent in English.
• Right to work in the UK (visa sponsorship is not available for this role).

Hiring Process

• Application Review — Our Talent Team reviews your CV to assess experience and potential fit.
• Talent Team Call (20–30 minutes) — A conversation to understand your background and discuss what motivates you.
• 1:1 Microsoft Teams interview with Manager.
• Offer — Successful candidates receive a fast turnaround to offer.

Welcome to Flatpay! Flatpay is not just another payment solution; we are dedicated to innovating the market for payment solutions and financial services in the SME segment with our customer-centric and transparent services. Today, we are one of the fastest-growing fintech companies out of the Nordics - and Denmark's fastest unicorn! Flatpay is more than just work. We believe in fostering a vibrant and fun work culture where our ambitious colleagues can thrive. As part of our team, you will be one of +2.000 passionate colleagues dedicated to making a difference in the world of payments. What sets Flatpay apart is our dedication. We continuously strive to stay ahead of the curve, adapting our solutions to meet our client's evolving needs. Let's shape the future of merchants together!