Career Opportunities

Senior Software Developer

Lisbon, PT Full-Time IT

About Marex

Marex is a diversified global financial services platform, providing essential liquidity, market access and infrastructure services to clients in the energy, commodities and financial markets.

The Group provides comprehensive breadth and depth of coverage across four core services: Market Making, Clearing, Hedging and Investment Solutions and Agency and Execution. It has a major franchise in many major metals, energy and agricultural products, executing around 50 million trades and clearing 205 million contracts in 2022. 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.

Marex was established in 2005 but through its subsidiaries can trace its roots in the commodity markets back almost 100 years. Headquartered in London with 36 offices worldwide, the Group has over 1,800 employees across Europe, Asia and America.

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.

The Technology Department delivers differentiation, scalability and security for the business. Reporting to the COO, Technology provides digital tools, software services and infrastructure globally to all business groups. Software development and 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, security, enterprise architecture and design.

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

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Role Summary

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.

All staff:

  • Ensure compliance with the company’s regulatory requirements under the FCA, NFA, AMF, AFM, MAS and any other relevant regulatory entity.
  • 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 comply with the FCA’s code of Conduct and Marex’s Code of Conduct.
  • 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.
  • Report any breaches of policy to Compliance and/ or your supervisor as required.
  • Escalate risk events immediately.
  • Provide input to risk management processes, as required.

Skills and Experience


  • Experience in JavaScript, Typescript, C# .NET Framework, React, NodeJS
  • Experience with container services (Docker, Kubernetes,…)
  • Experience with SQL Server
  • Modern CI/CD Jenkins and DevOps practices (Bitbucket nice to have)
  • Cloud technology, Microsoft Azure and AWS (Amazon Web Services)
  • Experience with RabbitMQ and Azure Service Bus
  • Knowledge of BDD/TDD
  • Agile and scrum development methodologies
  • Methodical approach to software architecture and design and experience employing the right design choices for a given project
  • Excellent verbal and written communication skills (English is a must)


  • Experience working in a regulated environment and knowledge of the risk and compliance requirements associated with this.


  • 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

Marex is fully committed to the elimination of unlawful or unfair discrimination and values the differences that a diverse workforce brings to the company.