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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Software Developer Energy Trading Operations - **Company:** Marex - **Location:** UK - **Contract:** Franchise - **Skills:** JavaScript (Programming Language), Agile Methodology, Amazon Web Services, C Sharp (Programming Language), Cloud Computing, Databases, Continuous Integration, DevOps, Messaging Application Programming Interface, NoSQL, Scrum Methodology, Software Architecture, Software Engineering, TypeScript, Web Applications, ReactJS, Event Driven Architecture, AngularJS, Kubernetes, BIG-IP Advanced Firewall Manager (AFM), Terraform, Docker - **Published:** October 15, 2026 - **Apply:** https://www.totaljobs.com/job/software-developer/marex-spectron-international-limited-job108176211 ## About the Role Essential: * Experience in C# .NET, React/Angular, JavaScript, Typescript * Experience of NoSQL or RDMS databases * Infrastructure as Code, Terraform or equivalent * Modern CI/CD and DevOps practices * Cloud technology, ideally AWS (Amazon Web Services) * Knowledge of BDD/TDD * Agile and scrum development methodologies * Methodical approach to software architecture and design, and employing the right design choices for a given project * Enforcing engineering standards using SOLID, GoF patterns * Applying best practices for security, scalability, resiliency and performance * Excellent verbal and written communication skills Desirable: * Docker, Kubernetes, Messaging frameworks * Event-driven or streaming architectures * Observability * Working in a regulated environment and knowledge of the financial markets * Understanding of commodities trading concepts, * A collaborative team player, approachable, self-efficient and influences a positive work environment * Demonstrates curiosity * Resilient in a challenging, fast-paced environment * Excels at building relationships, networking and influencing others * Strategic collaborator with insight and agility, able to anticipate future challenges, ensuring operational effectiveness Conduct Rules, You must: * Act with integrity * Act with due skill, care and diligence * Be open and cooperative with the FCA, the PRA and other regulators * Pay due regard to the interests of customers and treat them fairly * Observe proper standard of market conduct * Act to deliver good outcomes for retail customers Company Values Be collaborative - by working together across the organisation, we foster teamwork, can better respond to challenges and successfully deliver for our clients Act with integrity - we pride ourselves on our honesty and high ethical standards. We apply these values when working with all our clients, colleagues and other stakeholders Be adaptable and entrepreneurial - we embrace change as markets evolve to constantly increase our efficiency and create innovative solutions for our clients. We are interested in the world around us and inquisitive about understanding the challenges and opportunities our clients face. Be respectful - how we treat each other, and our clients says everything about who we are. We always act respectfully and treat people fairly in everything we do. ## Description As a Software Developer specializing in C# .NET or React, you will be a pivotal member of our Software Development team, contributing to the creation and enhancement of secure, responsive web applications tailored for front-to-back trading technology. Your expertise in C# .NET or React and your strong emphasis on testing will be instrumental in delivering robust and reliable applications. In this role, you will use your architectural experience to help mature our existing software and efficiently migrate legacy platforms to the cloud, working closely with the platform engineering team to ensure seamless integration and deployment. Responsibilities Role specific: * Design, code and test all components of modern web applications. * Contribute to the overall architecture and design of the technology created/maintained by the development delivery team. * Develop solutions to a high standard that is maintainable, testable and meets the requirement's acceptance criteria. * Adhere to development best practices and processes. * Communicate with team members, introduce ideas and keep abreast of the latest technologies. * Liaise with business users to gather application requirements. * Ensure delivered systems are of production quality. Ensure software is adequately documented for handover to the business. * Follow coding standards and defined development process. * Resolve third line support issues in a professional and timely manner. * Be pragmatic & delivery focused. * Ensure solutions are not over engineered, always lean towards simplicity over unnecessary complexity All staff: * Ensuring compliance with the company's regulatory requirements under the FCA, NFA, AMF, AFM, MAS. * Adhere to the operational risk framework for your role ensuring that all regulatory or company determined parameters are complied with. * Role model for demonstrating highest level standards of integrity and conduct and reflecting Company Values. * At all times complying with the FCA's Code of Conduct * To ensure that you are fully aware of and adhere to internal policies that relate to you, your role or any other activities for which you have any level of responsibility * To report any breaches of policy to Compliance and/ or your supervisor as required * To escalate risk events immediately * To provide input to risk management processes, as required.