Software Developer | Energy Trading Operations

Marex; Greater London; On-site; GBP 65,000 - 95,000; Full time

Job summary

Marex is hiring a Software Developer specializing in C# .NET or React to contribute to secure, responsive web applications for trading technology. You will help mature existing software and migrate legacy platforms to the cloud, working with the platform engineering team to ensure smooth deployment.

Essential skills include C# .NET, React/Angular, JavaScript, TypeScript, CI/CD and AWS. Collaboration across agile teams, strong testing focus and adherence to engineering standards are required to

Qualifications

• Experience in C# .NET, React/Angular, JavaScript, TypeScript.
• Experience with NoSQL and RDMS databases.
• Infrastructure as Code tools (Terraform) and modern CI/CD practices.
• Cloud technology experience, preferably AWS.
• Knowledge of BDD/TDD and Agile/Scrum.
• Strong focus on secure, scalable and performant software.
• Excellent communication skills.

Responsibilities

• Design, code and test components of modern web applications.
• Contribute to overall architecture and design.
• Develop maintainable, tested software meeting acceptance criteria.
• Adhere to development processes and coding standards.
• Collaborate with business users to gather requirements.
• Ensure production-ready delivery and proper documentation.

Skills

C# .NET

React

Angular

JavaScript

TypeScript

NoSQL databases

RDMS databases

Infrastructure as Code

Terraform

CI/CD

AWS

BDD/TDD

Agile/Scrum

SOLID patterns

Security & performance

Documentation

Tools

Docker

Kubernetes

Messaging frameworks

Job description

About Marex

Marex Group plc (NASDAQ: MRX) is a diversified global financial services platform providing essential liquidity, market access and infrastructure services to clients across energy, commodities and financial markets. The group provides comprehensive breadth and depth of coverage across four core services: clearing, agency and execution, market making, and hedging and investment solutions. It has a leading franchise in many major metals, energy and agricultural products, with access to 60 exchanges. The group provides access to the world’s major commodity markets, covering a broad range of clients that include some of the largest commodity producers, consumers and traders, banks, hedge funds and asset managers. With more than 40 offices worldwide, the group has over 3,000 employees across Europe, Asia and the Americas.

For more information visit https://www.marex.com/

Vacancy Number: VN3065 & VN3127

Department Description

Marex has unique access across markets with significant share globally both on and off exchange. The depth of knowledge amongst its teams and divisions provides its customers with clear advantage, and its technology‑led service provides access to all major exchanges, order‑flow management via screen, voice and DMA, plus award‑winning data, insights, and analytics.

This role sits within the Technology department reporting to the Global IT Service Manager. Technology is central to the success of our organisation. The 290+ strong global Technology Department delivers differentiation, scalability and security for the business. Technology provides digital tools, software services and infrastructure globally to all business groups. Software development and application support teams work in agile ‘streams’ aligned to specific business areas. Our other teams work enterprise‑wide to provide critical services including our global service desk, network and system infrastructure, IT operations, design, enterprise architecture and information security.

The Software Development function creates and maintains applications, frameworks and other software components to deliver to business requirements. Developers conceive, specify, design, engineer, document, test, and deliver bug fixes as needed to provide high quality software solutions. Each Development team is aligned to one of Marex’s business divisions and works for that division under Head of Technology and corresponding Application Support team.

Role Summary

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 elevate risk events immediately.
• To provide input to risk management processes, as required.

Competencies, Skills, Experience & Qualifications

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.

Competencies:

• 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.

Nurture talent

We aim to grow our own talent and make Marex the place ambitious, hardworking and talented people choose to build their career. This means giving and taking stretch opportunities, taking risks, and committing to career development and support – for ourselves, and our teams.

Marex is fully committed to being an inclusive employer and providing an inclusive and accessible recruitment process for all. We will provide reasonable adjustments to remove any disadvantage to you being considered for this role. We value the differences that a diverse workforce brings to the company. We welcome applications from candidates returning to the workforce. Also, Marex is committed to avoiding circumstances in which the appearance or possibility of conflicts of interest may exist within the hiring process. If you would like to receive any information in a different way or would like us to do anything differently to help you, please include it in your application.