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Senior HR Advisor

TwinStream
UKRemotefull_timeVerifiedPosted 5 Sept 2025
💰 £50,000/yr(£40,000/yr£50,000/yr)

About the role

Who are we:

In 2019, our founders were working as engineers solving complex cross domain problems within government organisations

TwinStream was formed to consolidate their collective expertise and experience into one business, providing technical excellence and exceptional service to their clients. We have teams working both on-site with clients and remotely from home.

 

Details:

Salary: £40,000 to £50,000 (pro-rated to part-time) 

Location: Remote 

14-month Fixed Term Contract 

Part-time position: 30 hours per week over 4 or 5 days per week  

 

About the role:  

As Senior HR Operations Advisor, you will play a key role in the smooth running of our day-to-day People processes.   You’ll act as a subject matter expert in people policy, systems and lifecycle processes.  This role will suit someone who enjoys building new processes from the ground up, driving meaningful impact and helping a high-growth organisation mature its people operations with structure, consistency and purpose.  

 

Responsibilities:  

Employee Lifecycle Support 

  • Be the point of contact for employee queries, providing guidance and resolution 
  • Draft and review employment contracts and employee changes-related documentation 
  • Support the onboarding of new starters, ensuring a smooth, consistent and engaging experience from offer to induction  
  • Manage and analyse exit interviews to identify trends and inform retention and engagement strategies  

HR Operations & Compliance 

  • Coordinate and carry out pre-employment checks in line with company policy and legal requirements 
  • Ensure compliance with UK employment legislation, GDPR and internal policies  
  • Maintain accurate people data in the relevant systems, producing reports and providing the business with insightful data.  
  • Partner with Finance, IT and Admin to maintain efficient cross-functional processes 
  • Administer employee benefits programmes (healthcare, Life Assurance, income protection, Octopus EV scheme, buy and sell annual leave), including enrolments, changes, renewals and employee queries.  

Systems and Process Improvement 

  • Own and improve our core People operational process with a particular focus on onboarding, offboarding and employee changes to enhance efficiency and scalability.  
  • Source, evaluate and implement a new HRIS to support the evolving needs of the business 

Project work 

  • Support the CPO on a number of people-related projects as the business continues to grow.  

  

Key Skills: 

  • Proven experience in HR Operations or generalist roles, preferably in a start-up, scaling environment 
  • Knowledge of UK employment law and HR compliance 
  • Extensive experience with HR systems (e.g. BambooHR, HiBob or similar) 
  • Strong attention to detail and excellent organisational skills 
  • Ability to manage confidential information with discretion and integrity 
  • A strong process mindset with proven ability to design, document and improve scalable HR workflows 
  • Excellent communication and interpersonal skills 

  

Desirable Skills: 

  • Experience of sourcing, evaluating and implementing a new HRIS into an SME 

 

There are many great reasons to join our team! 

Pension Plan 

Secure your future with our competitive pension plan that offers an 8% employer contribution.   

Private Medical Healthcare 

Your health and well-

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Company

TwinStream

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