Doran Jones

Senior Software Engineer (C#/Python/React)

Posted 2 Days Ago

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Hiring Remotely in Mexico City, Cuauhtémoc, Mexico City

In-Office or Remote

Senior level

Financial Services

The Role

The Senior Software Engineer will redesign the Order Management System, develop full-stack solutions, and collaborate on a modern trading platform.

Summary Generated by Built In

We are seeking a Senior Full-Stack Engineer to help redesign an Order Management System (OMS) for a top-tier financial services organization. You will play a key role in building a scalable, resilient, and modern trading platform, working across backend, frontend, and cloud components.

This is a hands-on engineering role requiring strong technical depth and experience working in fast-paced, mission-critical financial environments. You will collaborate closely with trading, risk, and technology teams to deliver high-quality solutions that support high-volume, real-time workflows.

Responsibilities

Design and develop full-stack solutions using C#, Python, and React within a modern distributed architecture.
Build scalable, high-performance components supporting real-time trading and order workflows.
Implement clean, maintainable code following best practices in testing, performance, and reliability.
Support cloud deployment and modern DevOps tooling across AWS/Azure environments.
Collaborate with cross-functional teams to translate business requirements into technical specifications.
Participate in code reviews, architecture discussions, and continuous improvement of engineering practices.
Contribute to platform modernization and migration away from legacy systems.

Required Experience

8+ years of software engineering experience in enterprise or financial services environments.
Strong experience with C# and/or Python in production systems.
Hands-on experience with React or similar modern frontend frameworks.
Background working with trading systems (OMS, EMS, pricing, execution, market data, or related).
Experience building distributed, cloud-based applications (AWS or Azure).
Solid understanding of REST APIs, microservices, and performance optimization.
Strong problem-solving skills and ability to work in a fast-paced environment with multiple stakeholders.

Preferred Experience

Exposure to fixed-income or multi-asset trading workflows.
Experience with high-throughput, low-latency architecture and real-time data processing.
Experience with messaging systems such as Kafka, RabbitMQ, or similar.

McLaren Strategic Solutions is a leading-edge global technology consulting firm, addressing critical challenges across industries such as retail, financial services, and healthcare. Integrating a powerful ecosystem of platforms with capital-efficient execution, McLaren specializes in digital transformation to help businesses optimize operations, accelerate revenue, and achieve scalable outcomes. McLaren’s expertise spans the development of customer-centric applications, modernizing systems for cost-effectiveness and security, and leveraging cloud scalability for future-ready architectures. With a deep commitment to operational excellence, McLaren provides comprehensive managed services, including application maintenance, cybersecurity, platform solutions, and AI-optimized operations, ensuring seamless, secure, and efficient performance.

From supply chain automation to compliance and analytics, McLaren drives measurable impact: improving workforce productivity, reducing inventory costs, and cutting technology ownership expenses. With its emphasis on automation and zero business downtime, McLaren facilitates seamless migrations from legacy systems to modern platforms, enabling organizations to harness the full potential of digital transformation. Backed by strategic partnerships and a proven delivery model, McLaren empowers clients to innovate, modernize, and achieve lasting success in today’s digital economy.

McLaren is a certified minority owned business through the NMSDC and has a mission to place more people from non-traditional backgrounds into sustainable technology careers. Through partnerships with non-profit technology programs in underserved communities and Veteran organizations, candidates transition from tech training programs into real IT careers at McLaren. Our unique recruitment policy allows us to create exceptional teams, bringing a broad spectrum of experience to our company and creating anything but a traditional consulting firm.

Visit McLaren Strategic Solutions to learn more!

Doran Jones Inc. is proud to be part of the McLaren Strategic Ventures Group.

Top Skills

AWS

Azure

Kafka

Microservices

Python

RabbitMQ

React

Rest Apis

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The Company

HQ: Charlotte, NC

52 Employees

Year Founded: 2010

What We Do

Doran Jones Inc. (DJI) is the leading financial services Data Engineering and Application Development firm, specializing in Capital Markets, Risk, and Regulatory Compliance. We are US-based, helping our clients fill gaps in capacity and expertise, reduce risk, and accelerate change. Our leaders average over 25 years of experience in Financial Services and Technology. DJI is repeatedly engaged by the largest and most complex clients for our Agile transformation expertise and practical understanding of the critical relationship between data, architecture, and application development.

DJI has a mission to place more people from non-traditional backgrounds into sustainable technology careers. Through partnerships with non-profit technology programs in underserved communities and Veteran organizations, candidates transition from tech training programs into real IT careers at DJI. Our unique recruitment policy allows us to create exceptional teams, bringing a broad spectrum of experience to our company and creating anything but a traditional consulting firm.

DJI is a wholly-owned subsidiary of McLaren Strategic Ventures, a private equity firm, that invests in start-ups and scale-ups. They provide a full range of highly trusted domain consulting, advisory services, and innovative technologies globally. Doran Jones is able to offer a broad range of technology, deeper AI and machine learning tools, data intelligence, alternative resourcing capabilities, and capital access to invest and digitize at scale. Our clients benefit from this unique portfolio allowing them to accelerate the pace of their own digital transformations through innovative products and services designed around industry-wide issues.