Japheth Chesire

o Prepared, annotated, and structured high-quality datasets for fine-tuning Large Language Models (LLMs) across
multiple use cases.
o Designed, tested, and iterated prompts to improve clarity, relevance, and accuracy of model outputs.
o Supported model fine-tuning initiatives, including Reinforcement Learning with Human Feedback (RLHF).
o Evaluated AI model outputs to enhance performance, safety, and alignment.
o Analyzed and segmented complex content to strengthen reasoning and problem-solving capabilities for global
clients.
o Built agentic workflows to support training of autonomous AI agents across defined business roles

o Managed daily deposit processing, invoice posting, and bank reconciliations across multiple payment partners,
supporting accurate month end close.
o Investigated payment discrepancies and potential fraud through backend audits and reconciliations, reducing
unresolved cases.
o Strengthened internal financial controls and supported audit remediation through documented process
improvements.
o Collaborated with cross-functional teams and external payment partners to resolve account and transaction
issues efficiently.
o Maintained standard operating procedures (SOPs) and identified opportunities for workflow optimization and
automation.

o Supported budgeting activities, including preparation and submission of supplementary estimates to the
National Treasury.
o Issued Authorities to Incur Expenditure (AIEs) to respective departments to support operational efficiency.
o Prepared quarterly expenditure and project performance reports for submission to the Controller of Budget.
o Monitored expenditure trends and fund commitments in compliance with National Treasury circulars.
o Achieved a 100% on-time submission rate for expenditure and pending bills returns.

o Led bookkeeping reviews and reconciliations, completing 90% of month-end activities within three days.
o Conducted opening balance reviews, vouching, and audit coordination, reducing audit completion time by
50%.
o Verified financial statement items, ensuring the authenticity of transactions posted in the primary books of
accounts. Achieving a 95% accuracy rate for vouching financial statement items.
o Prepared financial statements in compliance with applicable accounting standards and presented reports to
management.
o Conducted monthly bank reconciliations with 100% on-time reporting.
o Monitored member deposits and supplier payments in line with internal controls and policies.