Senior HR Advisor Remote (Part-Time, Fixed-Term) Up to £50,000 (pro-rated for part-time)
Hours: 30 per week, across 4 or 5 days Contract: 14-month Fixed Term
At TwinStream, we bring technical excellence and exceptional service to our clients across government and industry. Founded in 2019 by engineers passionate about solving complex cross-domain challenges, we ve grown into a dynamic consultancy where people are at the heart of everything we do.
Our teams work both remotely and on client sites, but we re united by a culture that values flexibility, collaboration, and continuous improvement.
The Senior HR Advisor opportunity:
We re looking for a Senior HR Advisor to join our growing People team. This is a hands-on, varied role where you ll be the go-to expert for HR operations, employee lifecycle processes, and compliance.
If you enjoy shaping processes, building HR systems from the ground up, and making a tangible impact in a scaling organisation, this is the role for you.
Why join us?
- Competitive pension plan 8% employer contribution
- Private medical healthcare including dental & optical for you and your family
- Learning & development autonomy to drive your own career growth
- Flexible working integrate work with life seamlessly
- Electric vehicle scheme salary sacrifice for sustainability
- Generous holiday 28 days + bank holidays
- Life assurance & cycle-to-work scheme
- Team events summer socials, Christmas parties, and quarterly get-togethers
Key Responsibilities of the Senior HR Advisor:
- Acting as the first point of contact for employee queries, providing expert guidance.
- Drafting contracts, managing changes, and supporting smooth onboarding and offboarding.
- Coordinating compliance checks and ensuring adherence to UK employment law and GDPR.
- Managing and improving HR systems and people data, providing insights to the business.
- Administering employee benefits and supporting cross-functional processes with Finance, IT, and Admin.
- Leading process improvements in HR operations, including sourcing and implementing a new HRIS.
- Partnering with the CPO on people-focused projects to support business growth.
About you:
- Strong experience in HR operations or generalist roles, ideally in a start-up or scaling business.
- Solid knowledge of UK employment law and HR compliance.
- Confidence working with HR systems (e.g. BambooHR, HiBob or similar).
- A detail-oriented, process-driven mindset with the ability to streamline workflows.
- Excellent communication skills and discretion when handling sensitive information.
Important to know:
Due to the nature of some of our clients, this role is subject to successful completion of a security screening process.
Ready to shape the future of HR at TwinStream?
Apply now and help us build a people experience that truly makes a difference.