Senior Implementation Manager - Private Markets SaaS

Atominvest; Greater London; Hybrid; GBP 70,000 - 110,000; Full time

Job summary

Atominvest in Greater London is seeking an Implementation Manager to own the end-to-end delivery of our platform for sophisticated private markets asset managers, acting as the day-to-day contact and the face of Atominvest throughout the engagement.

You will lead complex, multi-stakeholder implementations from discovery to go-live, designing the implementation plan and working closely with Sales, Product and Engineering to ensure client outcomes are delivered to the highest standard.

Qualifications

• 3–6 years leading enterprise B2B SaaS implementations end-to-end.
• Strong knowledge of private markets and fund reporting requirements.
• Hands-on with APIs, data mapping, and integration concepts.
• Experience running discovery workshops that yield concrete implementation plans.
• Analytical with strong Excel skills and ability to reconcile complex data.
• Excellent project management instincts and proactive communication.
• Ability to engage senior stakeholders and manage expectations.
• Entrepreneurial mindset with autonomy and speed.
• Bonus: PMP/PRINCE2 or PE/VC operations experience.

Responsibilities

• Own the full client lifecycle: discovery, design, configuration, data migration, integrations, UAT, training, go-live and post-deployment success.
• Be the client's single day-to-day face and the Atominvest representative—build credibility through platform knowledge.
• Run structured discovery workshops to translate client fund structures into concrete implementation plans.
• Design and advise on implementation plans, sequencing, dependencies and resources.
• Scope integrations with client technical teams (APIs, SFTP, data feeds).
• Lead enterprise implementation programmes with complex timelines and senior stakeholders.
• Analyse client datasets to design and configure optimal platform solutions.
• Conduct executive business reviews with C-level contacts alongside Account Managers.
• Proactively manage risks and customer health.
• Coordinate product changes and rollouts; ensure smooth production deployments.
• Gather feedback for the product roadmap and own delivery of new features.
• Deliver high-quality, white-glove support and build client trust.
• Identify expansion opportunities by understanding clients' operating models.

Skills

Enterprise SaaS

Implementation

APIs

Data mapping

Project management

Stakeholder management

Client relations

Excel

Tools

APIs

SFTP

Data feeds

Job description

Atominvest in Greater London is seeking an Implementation Manager to own the end-to-end delivery of our platform for sophisticated private markets asset managers, acting as the day-to-day contact and the face of Atominvest throughout the engagement.

You will lead complex, multi-stakeholder implementations from discovery to go-live, designing the implementation plan and working closely with Sales, Product and Engineering to ensure client outcomes are delivered to the highest standard.