Meet the Team
Sandra Rivera
FounderSandra J. Rivera is Founder and Managing Principal of SJR Energy & Commodities Group, where she leads global trade strategy with deep expertise rooted in refined fuels and crude oil markets alongside gold and infrastructure-focused resources. With decades of experience operating across regional and international markets, Sandy has built a career centered on energy supply execution and high-level commercial decision making.
Her work focuses on fuels and crude oil while extending into gold transactions and infrastructure-related trade that supports large-scale industrial demand. Sandy manages VIP client relationships and works directly with senior decision makers within global institutions and private enterprises. Known for navigating complex markets through trust foresight and disciplined execution, she plays a central role in shaping strategic outcomes. Under her leadership, SJR Energy & Commodities Group delivers a white-glove service model supported by rigorous due diligence global logistics access and modern financial capabilities including digital settlement pathways. Her vision continues to position the firm as a trusted leader in global trade and strategic resource movement.
Andrew Murdock
Director of CommodityAndrew Murdock is Director of Commodity Trade and Sales at SJR Energy & Commodities Group, where he leads the financial structuring and execution of high-value transactions across global commodities and digital markets. His work focuses on capital flow and liquidity strategy while supporting deal execution for institutional and private clients operating in complex cross-border environments.
Andrew’s expertise is rooted in commodities trading and the financial systems that support large-scale physical transactions. He specializes in structuring deals that align commodity flows with secure settlement frameworks and disciplined risk controls. His background also includes advanced experience in digital asset infrastructure, allowing him to integrate fiat-to-crypto and crypto-to-fiat pathways when appropriate. This dual capability enables SJR Energy & Commodities Group to support commodity transactions with modern financial solutions that enhance efficiency, liquidity access, and execution certainty across global markets.
Reyana Garcia
Director of Content & CreativeReyana Garcia is Director of Content and Creatives at SJR Energy & Commodities Group, where she leads the firm’s content strategy and creative direction while shaping brand storytelling across digital platforms and global communications. Her work focuses on building clear brand alignment and strengthening market presence while communicating complex industry narratives in a way that supports long-term positioning within competitive markets.
Reyana brings firsthand industry experience that informs her creative leadership. Before moving into content and brand strategy, she spent several years working within the mining sector across active metallic mining operations. This on-the-ground exposure gives her a practical understanding of extractive industries and allows her to translate technical realities and operational dynamics into accurate and credible content. Her professional background includes content development and creative strategy alongside copywriting and visual direction, supported by close collaboration with cross-functional teams.
Kenneth Dwayne Gayas
Director of Marketing & Digital StrategyKenneth Dwayne Gayas is Director of Marketing and Digital Strategy at SJR Energy & Commodities Group, where he leads the firm’s digital presence and brand positioning while guiding long-term marketing direction across global markets. With more than a decade of experience in online operations and data-focused strategy, Kenneth brings a structured mindset focused on visibility growth and brand credibility within highly competitive industries.
His background includes hands-on work in data entry along with data analysis and business analysis. He has conducted market research and competitor evaluation while managing marketing campaign execution and large-scale email outreach and social media outreach programs. Kenneth has also served as a training facilitator and supervisor within outsourcing organizations, giving him strong experience in team leadership and operational structure. At SJR Energy & Commodities Group, he ensures digital initiatives support business goals through consistency and measurable performance.