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Full Stack React/C#/.Net Developer

PublishedPublished: 9/24/2026
Technology

One of our Clients, is looking for a Full Stack React/C#/.Net Developer.

Location: New York,NY

Position Type: Full Time/Perm

Job Summary:


• 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, engineer, document, test, and deliver bug fixes as needed to provide high quality software solutions.


• Each Development team is aligned to one of client's business divisions and works with a corresponding Business Technology and Application Support team.

Responsibilities:


• Design and code across all proprietary applications and services that constitute the Capital Markets technology platform.


• Take accountability for the quality of deliverables, and assist the wider scrum team in taking accountability for theirs.


• Work with platform engineering to automate build and deploy of existing and new system.


• Work with application support to deliver production ready systems that are fully integrated into the operational ecosystem; logging, monitoring and observability.


• Support the strategic goals of Capital Markets development; greenfield initiatives, re-platforming and consolidating legacy systems, and adopting an automation-first approach to delivery and quality control.


• Act as an automated testing "champion” within the scrum team, working with SDETs to upskill developers and exploiting opportunities to automate quality control


• Ensuring compliance with the company's regulatory requirements under the SEC, Client, NFA, CFTC and other applicable exchanges


• 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 Marex'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 responsibilit


• To report any breaches of policy to Compliance and/ or your supervisor as required


• To escalate risk events immediatel


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


• The Company may require you to carry out other duties from time to time.

Competencies, Skills and Experience:


• Excellent verbal and written communication skills.


• A collaborative team player, approachable, self-efficient and influences a positive work environment.


• Demonstrates curiosity.


• Resilient in a challenging, fast-paced environment.


• Ability to take a high level of responsibility in a fast pace and high-volume environment.


• Excels at building relationships, networking and influencing others.

Skills and ExperienceEssential:


• Engineering: C#, .Net Core, ASP.Net, SQL


• Tools / Technologies / Infra: Cloud/AWS, Windows Services, RabbitMQ, Bitbucket (Git), SQL/Server, Jira


• Design: API, HTTP/REST, JSON, micro-services and distributed systems


• SDLC: Agile, Scrum, Kanban, devOps, CI/CD, Automation First, BDD/TDD, DORA

Desirable:


• Engineering: React, JS/TS, HTML, CSS, Java, Vue, Angular, .Net, Winforms


• Tools / Technologies / Infra: NodeJS, Docker, Kubernetes, Kafka, Azure, GCP, NoSQL, DN


• Design: Serverless, cloud-native/PaaS, event driven, pub/sub, real-time/websockets, architectural design records (ADRs)


• Full end-to-end understanding of Capital Markets Trading Systems implementation, and the FIX protocol


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


• Bachelor's Degree is preferred.

Pay Range:$150000-$220000 per year

Required skills

  • QC (Quality Control)
  • Java
  • Information Technology
  • C#
  • .NET
  • ASP.NET
  • Architectural Design
  • Agile
  • Knowledge in Excel
  • HTML (Hyper Text Markup Language)
  • SQL
  • DevOps
  • JIRA
  • Representational State Transfer (REST)
  • Json
  • Scrum
  • Kanban
  • Continuous Integration and Delivery (CICD)
  • Test Driven Development (TDD)
  • Cascading Style Sheets (CSS)
  • Windows Forms
  • Windows Azure
  • NoSQL
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