{"id":1388342,"url":"https://alion.io/job/marex-software-developer-clearing-technology","title":"Software Developer - Clearing Technology","company":{"id":1821133,"name":"Marex","domain":"marex.com","url":"https://alion.io/company/marex-com","size_band":"1001-5000","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Breezy","truth_index":{"grade":"B","score":80,"open_postings":9,"ghost_share":0,"stale_share":1,"repost_share":0,"time_to_fill_p50_days":4,"computed_at":"2026-10-01T05:45:00Z"}},"role":"Backend","role_family":"Backend","seniority":null,"employment_type":"full_time","work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["London, United Kingdom"],"countries":["GB"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":75000,"max_usd":181000,"period":"year","method":"role_country_seniority_unknown","sample_n":270},"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":".NET","optional":false},{"name":"Agile","optional":false},{"name":"AWS","optional":false},{"name":"C#","optional":false},{"name":"CI/CD","optional":false},{"name":"JavaScript","optional":false},{"name":"Node JS","optional":false},{"name":"React.js","optional":false},{"name":"Scrum","optional":false},{"name":"Service Desk","optional":false},{"name":"TypeScript","optional":false},{"name":"Entity Framework Core","optional":true},{"name":"Terraform","optional":true}],"status":"live","first_seen_at":"2026-09-03T13:53:41Z","employer_posted_date":"2026-09-03","last_verified_at":"2026-10-01T12:45:35Z","board_verified":true,"closed_at":null,"days_open":28,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":28},"description":"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.\nThe 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.\nThe 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 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.\nThe 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 with a corresponding Business Technology and Application Support team.\nFor more information visit www.marex.com\nPosition Reference:VN2844\nRole Summary\nAs a Senior Front End Developer with full stack capability, you will be a pivotal member of our Software Development team in Clearing Technology, driving an AI-first approach to the creation and enhancement of secure, responsive web-based platforms. Marex is a full clearing member of major financial exchanges - across energy, commodities, metals and financial markets.\nYou will leverage modern AI-assisted development tools and practices to accelerate delivery, improve code quality, and enhance developer productivity, while ensuring solutions meet the high standards of control, auditability, and reliability required within financial systems, including compliance with SOX (Sarbanes-Oxley) requirements.\nYour expertise in React, TypeScript and modern front-end engineering, combined with working knowledge of server-side technologies (C# .NET or Node.js), will be instrumental in delivering robust, scalable, and well-governed applications. You will maintain a strong emphasis on testing, traceability, and deterministic system behaviour.\nResponsibilities:\nEssential skills and experience, \nStrong experience in React, JavaScript and TypeScript, including component architecture, state management, and performance optimisation\nExperience building responsive, accessible web applications with modern front-end tooling\nWorking experience with at least one server-side technology (C# .NET preferred, or Node.js)\nExperience leveraging AI-assisted development tools (e.g. code generation, automated testing, developer productivity tooling) to improve delivery speed and quality\nStrong understanding of applying AI responsibly within the software development lifecycle, ensuring traceability, auditability, and control\nExperience of NoSQL or RDBMS databases\nModern CI/CD and DevOps practices\nCloud technology, ideally AWS (Amazon Web Services)\nKnowledge of BDD/TDD\nAgile and scrum development methodologies\nMethodical approach to software architecture and design and experience employing the right design choices for a given project\nExcellent verbal and written communication skills\nDesirable,\nDeeper back-end experience in C# .NET (Web API, Entity Framework) or Node.js\nInfrastructure as Code, Terraform or equivalent\nUnderstanding of financial products across derivatives, FX, commodities, cash equities or fixed income\nGood knowledge of the post-trade lifecycle, including confirmation/affirmation, allocations, settlement, clearing, collateral and margin, lifecycle events, reconciliations, and exceptions management\nExposure to embedding AI capabilities into end-user applications (e.g. intelligent workflows, automation, or decision support)\nExperience of SOLID\nExperience of Domain Driven Design\nExperience working in a regulated environment and knowledge of the financial markets\nAll staff:\nEnsuring compliance with the company’s regulatory requirements under the FCA, NFA, AMF, AFM, MAS.\nAdhere to the operational risk framework for your role ensuring that all regulatory or company determined parameters are complied with.\nRole model for demonstrating highest level standards of integrity and conduct and reflecting Company Values.\nAt all times complying with the FCA’s Code of Conduct\nTo 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\nTo report any breaches of policy to Compliance and/ or your supervisor as required\nTo escalate risk events immediately\nTo provide input to risk management processes, as required\nSkills, Experience and Competencies\nEssential skills and experience:\nExperience in C# .NET, Node.js, React, JavaScript, Typescript\nExperience leveraging AI-assisted development tools (e.g. code generation, automated testing, developer productivity tooling) to improve delivery speed and quality\nStrong understanding of applying AI responsibly within the software development lifecycle, ensuring traceability, auditability, and control\nExperience of NoSQL or RDMS databases\nInfrastructure as Code, Terraform or equivalent\nModern CI/CD and DevOps practices\nCloud technology, ideally AWS (Amazon Web Services)\nKnowledge of BDD/TDD\nAgile and scrum development methodologies\nMethodical approach to software architecture and design and experience employing the right design choices for a given project\nExcellent verbal and written communication skills\nDesirable:\nUnderstanding of financial products across derivatives, FX, commodities, cash equities or fixed income.\nGood knowledge of the post-trade lifecycle, including confirmation/affirmation, allocations, settlement, clearing, collateral and margin, lifecycle events, reconciliations, and exceptions management.\nExposure to embedding AI capabilities into end-user applications (e.g. intelligent workflows, automation, or decision support) \nExperience of SOLID \nExperience of Domain Driven Design \nExperience working in a regulated environment and knowledge of the financial markets\nCompetencies\nA collaborative team player, approachable, self-efficient, and able to foster a positive engineering culture, including adoption of AI-first practices \nDemonstrates curiosity, particularly in emerging technologies, AI capabilities, and continuous improvement of development practices \nResilient in a challenging, fast-paced, and regulated environment \nExcels at building relationships, networking, and influencing others across both technical and business teams \nStrategic collaborator with insight and agility, able to anticipate future challenges, including those related to scale, regulation, and technology evolution, ensuring operational effectiveness\nConduct Rules, You must:\nAct with integrity\nAct with due skill, care and diligence\nBe open and cooperative with the FCA, the PRA and other regulators\nPay due regard to the interests of customers and treat them fairly\nObserve proper standard of market conduct\nAct to deliver good outcomes for retail customers\nCompany Values\nBe collaborative - by working together across the organisation, we foster teamwork, can better respond to challenges and successfully deliver for our clients\nAct 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\nBe 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.\nBe 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.\nNurture 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.\nAdaptable and Nimble - Our size and flexibility is an advantage. We are big enough to support our client’s various needs, and adaptable and nimble enough to respond quickly to changing conditions or requirements. A non-bureaucratic, but well controlled environment fosters initiative as well as employee satisfaction.\nMarex 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.\nIf 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.","description_format":"text","description_chars":9887,"description_truncated":false,"requirements":{"experience_years_min":null,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":null,"security_clearance":false,"languages":[]},"benefits":[],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":false,"industries":[],"lifecycle":[{"event":"open","at":"2026-09-28T11:06:40Z"}],"liveness":{"score":5,"band":"cold","label":"Long shot","p_open":1,"p_active":0.155,"p_room":0.35,"age_days":27,"expected_fill_days":4,"reasons":["conf:3","velocity","win:tail"],"computed_at":"2026-10-01T05:45:00Z"},"pay":null,"html_url":"https://alion.io/job/marex-software-developer-clearing-technology","json_url":"https://alion.io/job/marex-software-developer-clearing-technology.json","meta":{"generated_at":"2026-10-02T02:08:49Z","cache_seconds":300,"methodology":"https://alion.io/methodology","terms":"https://alion.io/terms","contact":"https://alion.io/contact","api":"https://alion.io/developers","usage":{"tier":"crawler","counted_by":"address","units_charged":1,"used_today":2776,"day_limit":5000,"remaining_today":2224,"minute_limit":60,"resets_at":"2026-10-03T00:00:00Z"}}}