Principal Trading Engineer (FullStack Engineer)

Cargill's size and scale allows us to make a positive impact in the world. Our purpose is to nourish the world in a safe, responsible and sustainable way.
Cargill is a family company providing food, ingredients, agricultural solutions and industrial products that are vital for living. We connect farmers with markets so they can prosper. We connect customers with ingredients so they can make meals people love. And we connect families with daily essentials - from eggs to edible oils, salt to skincare, feed to alternative fuel. Our 160,000 colleagues, operating in 70 countries, make essential products that touch billions of lives each day. Join us and reach your higher purpose at Cargill.
This position is in Cargill's agricultural supply chain business. We sit at the heart of the supply chain, partnering with farmers and customers to source, make and deliver essential products.

Job Purpose and Impact

As an Principal Engineer on the Trading Engineering team, you will lead the design and development of sophisticated trading platforms using modern JavaScript technologies, including React for front-end interfaces and Node.js for scalable back-end services. You'll architect and deliver robust, high-performance trading applications that process real-time market data and support low-latency, high-frequency trading operations. You'll provide technical leadership to cross-functional teams, mentoring engineers in best practices for JavaScript, React, and Node.js development. Your expertise will drive the adoption of industry standards, code quality, and performance optimization across the stack. You'll lead code reviews, knowledge sharing, and continuous improvement initiatives to ensure the team delivers reliable, maintainable, and secure trading solutions.Your role also includes maintaining clear technical documentation, supporting live trading systems, and leading efforts in system monitoring, troubleshooting, and disaster recovery. You'll champion continuous learning, keeping the team up to date with the latest trends in JavaScript, React, and Node.js to ensure the trading platform remains at the forefront of technology and business needs.

Key Accountabilities

• Leads and advises the design and implementation of robust trading systems, applying appropriate technologies to write clean, efficient and maintainable code, integrating market data feeds from financial providers and exchanges to process real time data, and customizing solutions to align with trading strategies and regulatory requirements.
• Applies expertise in software development and deployment automation to mentor and support the software engineering team, improving trading applications' performance, scalability and reliability, and validating software architecture to support high frequency trading, real time data processing and low latency communications.
• Leads and advises adherence to the highest standards of quality and performance in all trading software applications through rigorous testing, comprehensive code reviews, and strict adherence to best in class industry standards to prevent system failures that lead to significant financial losses.
• Leads the development of comprehensive test plans, including unit and integration tests, to validate functionality and performance, applying mastery debugging skills to resolve software defects and maintain system integrity, performing highly complex testing to ensure the system handles high transaction volumes, and engaging with quality assurance teams members to ensure software meets standards before deployment.
• Reviews to align technical solutions with business goals, engaging with traders, analysts, and other teams to gather requirements and deliver needed solutions, influencing agile practices like standups and sprint planning for effective communication, leading knowledge sharing through code reviews to foster learning and best in class industry standard, and articulating technical concepts clearly to nontechnical team members.
• Advocates the commitment to improving system performance, scalability and reliability to ensure systems evolve with changing needs, influencing teams to stay current with industry trends and best in class industry practices, leading continuous improvements to development processes and tools, and integrating users and stakeholders feedback to refine software solutions.
• Leads establishing and maintaining technical documentation of system architecture and development processes, ensuring clear technical guides and operation manuals to facilitate ease of use, maintaining compliance with regulations and policies, and building the knowledge base for delivering onboarding and training new team members.
• Leads and mentors monitoring live trading systems for optimal performance, including addressing real time issues promptly, responding quickly to resolve highly complex operational problems, minimizing downtime and risk, mentoring routine maintenance to keep systems secure and efficient, and leading disaster recovery planning to ensure business continuity during system failures or crises.

Qualifications

• Minimum requirement of 6 years of relevant work experience. Typically reflects 10 years or more of relevant experience.
• 6+ years of experience in JavaScript/TypeScript, with advanced knowledge of React (including hooks, state management, and performance optimization) and Node.js (including asynchronous programming, event-driven architecture, and clustering).
• Strong understanding of real-time data processing, WebSockets, and low-latency messaging protocols (e.g., FIX, gRPC, or similar).
• Proficiency in automated testing frameworks (Jest, Mocha, Cypress, Playwright) and CI/CD pipelines.
• Experience leveraging security best practices for trading platforms, including authentication, authorization, and secure data handling.
• Experience with monitoring, logging, and alerting tools (e.g., Prometheus, Grafana, ELK stack, Datadog).
• Strong database skills (SQL and NoSQL), including schema design, query optimization, and data replication.
• Familiarity with cloud-native architectures (AWS, Google Cloud Platform, or Azure), containerization (Docker), and orchestration (Kubernetes).
• Excellent communication skills and a track record of mentoring and leading engineering teams.

Preferred:

• Experience designing and building large-scale, high-availability trading or financial systems.

Equal Opportunity Employer, including Disability/Vet.