Investment Manager – Portfolio

Job Title: Investment Manager – Portfolio

Department: Investment

Reports to: Investment Director – Portfolio

Direct Reports: N/A

Grade: Manager – Senior

Contract: Full-time, Permanent

Salary: £61,500 - £67,000 depending on experience

Contract: Permanent

Location: Hybrid - London, EC1Y and homeworking

Please note that Mason Blake is the approved recruitment partner exclusively supporting this search on behalf of Better Society Capital. To express your interest, please apply below or contact Michael Henning at michael.henning@masonblake.com

About Better Society Capital

Better Society Capital (BSC) is the UK's leading social impact-led investor. Our mission is to grow the amount of money invested in tackling social issues and inequalities in the UK; we do this by investing ourselves and enabling others to invest for impact too.

Since 2011, we have helped the social impact investment market grow twelve-fold to over £10 billion. This capital has financed social purpose organisations tackling everything from homelessness to mental health and fuel poverty.

BSC manages £634m of its own investments as well as acting as a portfolio manager for the Schroders BSC Social Impact Investment Trust managing its £83m portfolio. BSC is about to implement its next five-year strategy, which will offer new opportunities.

BSC has built a market leading impact investment approach. In 2025 BSC was placed on the BlueMark Global Practice Leaderboard after ranking in the top-quartile across all 8 dimensions of the Operating Principles for Impact Management.

The opportunity:

We are recruiting an Investment Manager – Portfolio to take a central role in managing our impact investments at critical points in their lifecycle and our treasury portfolio: whether actively managing performance, supporting assets as they approach exit or working through special situations with rigour and strategic judgement.

This position offers a significant opportunity to apply your investment and financial markets expertise within an organisation where impact, purpose and system change are integral to our mission. You will develop deep impact‑investing capability by working across asset classes, while contributing to the delivery of both financial and social outcomes for investments.

You will own portfolio management of a broad and diverse portfolio, including charity bonds and other social impact investments, and build relationships with our investee impact fund managers. You will also work collaboratively with colleagues across our lending, venture, and property teams on high‑impact projects designed to improve outcomes for underserved communities across the UK. Finally, you will assume a leading role in the management of our treasury portfolio, working closely with teams across BSC on performance management and market analysis that feed into how we manage our liquidity.

We invest in our people as seriously as we invest our portfolio. You’ll accelerate your growth through hands-on experience across multiple asset classes, tailored training programmes, direct exposure to our Investment Committee, and collaboration with sector-leading specialists. If you’re passionate about using investment to help improve people’s lives, we want to hear from you.

Explore how we support our Investment Professional’s growth by

clicking here

What you will do:

• Support the delivery of performance management and exiting deals in our portfolio, including:

• Support on specific special situations across the portfolio (including, where appropriate, client portfolios) working with Investment Director – Portfolio and asset class investment teams.

• Support the active management of exits across the portfolio (including, where appropriate, client portfolios), working with Investment Director – Portfolio and asset class investment teams to successfully exit investments.

• Oversee and embed continuous improvement and learning on special situations and exits

• Lead the performance management and manager engagement for our social impact investments, including:

• Manage a portfolio of social impact investments towards exit and delivery on financial returns, high social impact and system change goals.

• Oversee our externally managed charity bond portfolio, including where needed, engaging with issuers refinancing.

• Capture key portfolio learnings that can help improve how we invest to benefit underserved and vulnerable individuals in the UK.

• Take a leading role in the ongoing management of our largely fixed income treasury portfolio, collaborating closely with the Middle Office and Finance Teams, including:

• Manage a port