Role: Investment Accounting & Reporting Implementation Assistant (12 month FTC)
Location: London
Position: Full time, Fixed Term
The Investment Accounting & Reporting Implementation Assistant supports the Investment accounting and reporting Implementation Lead in delivering accounting and reporting, testing, reporting, and documentation activities as part of an investments system implementation. The role focuses on hands on execution, analysis, and coordination.
About the job
While there is rarely a typical day, here’s a snapshot of some of the key parts of the job:
Accounting Services Implementation Support
Support the definition and documentation of accounting requirements for portfolios
Assist in reviewing accounting design outputs from the system vendor
Prepare analysis to support accounting policy and treatment decisions
Regulatory & HO Reporting Support
Assist in identifying and documenting data sources for regulatory and HO reporting
Support mapping of investment system outputs to reporting requirements
Execute UAT for customised reports and overlays
Assist in building and validating reporting solutions outside of the core system where required
Testing & Parallel Run Execution
Support the development of UAT and testing scenarios
Execute test cases and document results
Perform and document elements of parallel runs, comparing legacy vs new system outputs
Investigate and escalate variances and issues to the Lead
BAU Regulatory Reporting (Pre New System)
Support existing regulatory reporting processes prior to system go-live
Perform required data manipulations and control checks
Prepare data packs for handover to the MS Amlin Regulatory Reporting team
Participate in regulatory reporting workshops and knowledge transfer sessions
Controls & Documentation
Draft and maintain process documentation for new accounting and reporting processes
Document controls, reconciliations, and hand-offs
Support governance and audit evidence preparation
You’re going to enjoy the job if you also:
Are able to prioritize tasks and meet deadlines in a fast-paced environment
Have effective written and verbal communication skills to interact professionally with vendors and internal stakeholders
Demonstrate meticulous attention to detail.
Embrace change and always look for ways of improving existing processes.
Structured, detail-oriented, and comfortable working with senior SMEs
What you’ll need:
Part-qualified or qualified accountant, or strong finance systems experience
Experience in investment accounting, or insurance regulatory reporting desirable
Exposure to finance system implementations or major change programmes
Strong Excel and data analysis skills
We are stronger together because of our common interests and rich differences. You may be the strength we didn’t know we needed. Believe in yourself, and click apply today!
What Can You Expect From Us?
As well as a competitive base salary and performance related discretionary bonus, here is a link to our employee benefits - Benefits of working at MS Amlin | MS Amlin
Hybrid Working
At MS Amlin we operate a hybrid working model to empower our people with flexibility to blend where they work. We value collaboration and believe that we work better together, our teams typically do 3 days a week in the office.
About MS Amlin
MS Amlin is a leading (re)insurer and part of the global MS&AD Group, with operations across Lloyd’s of London, the Middle East, and Asia Pacific. With over 120 years of experience, we support businesses facing complex and demanding risks, providing continuity in an uncertain world. Our expertise covers Property, Casualty, Marine, Crisis Management, Natural Resources and Reinsurance, backed by strong underwriting capabilities and deep sector knowledge. At the core of our claims service is TRUST - Transparency, Responsiveness, Understanding, Solution-driven thinking, and Technical expertise. This defines how we manage claims and build lasting relationships.
We will build a workplace where all talent is welcomed, and everyone has the opportunity to influence how the business works. We have dedicated employee resource groups that support our Diversity, Equity, and Inclusion (DE&I) goals.
#LI-MSAUL
Skills Required
- Part-qualified or qualified accountant
- Strong finance systems experience
- Experience in investment accounting
- Exposure to finance system implementations
- Strong Excel and data analysis skills
Millennium Compensation & Benefits Highlights
The following summarizes recurring compensation and benefits themes identified from responses generated by popular LLMs to common candidate questions about Millennium and has not been reviewed or approved by Millennium.
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Career-Linked Recognition & Rewards — Compensation is tightly linked to individual and team performance, enabling very high upside for strong performers in investment and specialized tech roles. The pod-based model concentrates rewards where results are delivered.
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Healthcare Strength — Medical, dental, vision, life, and disability coverage are presented as part of a comprehensive package that is competitive for the sector. Overall perks and health-related offerings are often characterized as strong.
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Retirement Support — Retirement programs include a 401(k) with matching and elements like profit sharing or defined-contribution pensions. These features signal meaningful long-term savings support alongside cash compensation.
Millennium Insights
What We Do
Millennium is a global alternative investment management firm, founded in 1989, which manages $54.9 billion in assets. We seek to pursue a diverse array of investment strategies across industry sectors, asset classes, and geographies. Our four primary strategies are RV Fundamental Equity, Equities Arbitrage, Fixed Income Strategies, and Quantitative Strategies. Millennium was founded on the belief that innovation and results come from empowering talented, independent-minded individuals. To us, success is the combination of drive and discipline. See our community guidelines at: mlp.com/guidelines







