Our client, a global asset management firm is seeking an experienced Senior Fixed Income Portfolio Support Specialist to join an investment support function working closely with Portfolio Managers and Traders. This is a senior, hands-on role for someone who thrives in a front office adjacent environment and is motivated by building strong, trusted in-person relationships with investment professionals. The role requires deep technical knowledge of fixed income markets combined with strong operational expertise. You will act as a key partner to the investment desk providing insight and oversight across the full front-to-back investment lifecycle. Key Responsibilities: Act as the primary service partner to Portfolio Managers and Traders to ensure timely and accurate implementation of fixed income strategies Monitor portfolio activity and movements, providing insights to the desk on liquidity, duration, and trading activity Oversee daily cash flows and execute rebalancing proposals Proactively engage with wider investment operations teams to resolve issues and deliver outcomes, with particular focus on settlements to minimise failed trades Coach and mentor others in the team, supporting their technical development and ability to manage complex investment queries Participate in ad hoc projects to drive process improvements including automation and system enhancements Stay informed on market and global events, assessing potential impacts on investment processes and day-to-day operations and sharing insights with colleagues Requirements: Minimum 5 years experience in fund operations, portfolio support, or an investment team-facing role within asset management Strong expertise in fixed income investment markets Experience using Aladdin or Charles River would be beneficial Python and SQL experience strongly preferred Holds IMC, CFA or other relevant industry qualification Ability to work in a fast-paced environment Demonstrated ability to coach, train, and develop team members Strong interpersonal and communication skills, with confidence engaging senior investment stakeholders Mason Blake acts as an employment agency for permanent recruitment and employment business for the supply of temporary workers. Mason Blake is an equal opportunities employer and welcomes applications regardless of sex, marital status, ethnic origin, sexual orientation, religious belief or age.