People Manager

Costello Medical•Boston, MA

2d•$83,000 - $85,000•Hybrid

About The Position

Are you ready to shape the future of People operations in one of the US’s Top Places to Work? Do you thrive in fast-paced, high-growth environments where your impact is visible? With offices in Boston, New York and, soon, Vancouver, we are seeking a proactive, enthusiastic and collaborative People Manager to join us. This brand new, pivotal role is your chance to manage People operations across the Americas in a high-growth, fast-paced environment. You’ll be the go-to expert for HR in the US and Canada, partnering with our global People team to deliver seamless processes, drive engagement, and shape the future of our workforce. Staying abreast of wider People trends in the industry and remaining passionate about high-quality delivery, you will act as a trusted adviser to colleagues across the business and should act with integrity and in a way that upholds trust and confidence in our People function. We were recently awarded a spot in the US Top Places to Work in 2025 and have over 80 brilliant and ambitious colleagues based in Boston and New York. Our US team has grown rapidly since its establishment in 2020. This follows on from over 15 years operating across the UK and Asia. Our global expansion plans remain ambitious, with a small Canada office opening in Vancouver in early 2026.

Requirements

At least 2-3 years’ professional experience in a relevant role in the US
A degree level qualification in a relevant discipline (minimum GPA 3.3) or a relevant HR qualification, such as SHRM certification
Strong knowledge of US employment law and HR best practice; experience in Massachusetts or New York desirable
Extensive experience of managing a suite of HR processes across the entire employee lifecycle
Proven capability in employee relations, with a track record of delivering high-quality and accurate HR advice to colleagues at varying levels of seniority
Demonstrable experience of leading and managing HR projects, including mapping out project plans, timelines and resource, and successfully executing all steps through to completion. Exercises high levels of autonomy whilst recognising the need to collaborate at appropriate timepoints with key stakeholders
Collaborative style of working and highly communicative with key stakeholders and managers
Excellent written communication skills and numerical/financial literacy
Courage to challenge, speak up when necessary and influence others, always carefully considering how best to protect the needs of the company

Responsibilities

Managing all US and Canada People processes to ensure they run successfully, compliantly and efficiently. This includes onboarding new starters, offboarding leavers, managing promotions, running employee engagement surveys, processing benefits, sickness/absence management, and more
Managing a wide range of People projects for both the US/Canada and other global companies. Ensures that the Americas Director, Head of People and other key stakeholders remain informed about the progress of projects and can input where required
Providing tailored, robust and responsive advice and employee relations expertise to colleagues on performance management, career development, absence management, wellbeing, workplace conduct and more. You will also recognize when escalation or external counsel is required
Autonomously produce HR letters that are written appropriately, accurately researched, compliant with statutory regulations and company policy and show a high level of accuracy and attention to detail
Driving process improvements to increase the efficiency within HR administration (e.g. utilizing technology and AI), whilst maintaining a high-quality service
Actively staying abreast of HR/employment changes and trends, including societal and political factors. You will proactively feed this back to relevant Directors and the Head of People to ensure this translates to the actions of the People team and shapes the overall People and company strategy appropriately
Maintaining strong relationships with external stakeholders, such as our benefits broker and legal counsel
Supporting the development of our Boston-based People team, including being responsible for team satisfaction, wellbeing, workload, and enhances their development through regular contact, ongoing feedback, training and performance reviews. In due course, this may also include being a direct line manager to colleagues