Senior Software Engineer

Mondrian Alpha; New York (NY); On-site; USD 140,000 - 210,000; Full time

Job summary

Mondrian Alpha in New York is seeking a Senior Software Engineer to join our Operating Platform Technology function, delivering production-grade software across front-end, back-end and data pipelines. You will own design, reliability, and evolution of critical systems, collaborating with Operations, Compliance, Treasury, Finance, Tax, Legal and HR to translate complex requirements into robust solutions.

The role emphasizes cloud-native modernization, AI/LLM-powered workflows, and a hands-on,

Qualifications

• 5+ years of professional software engineering experience delivering production systems.
• Strong full-stack background across modern front-end and back-end (C#/.NET or Python) and both relational and analytical data stores.
• Hands-on experience building cloud-native applications with containers, IaC and CI/CD practices.
• Strong grounding in software architecture, API design, data modelling and system integration.
• Experience modernising or re-platforming legacy systems without disrupting live operations.
• Excellent communication skills, able to translate business/regulatory requirements for technical solutions.
• Comfortable diagnosing and resolving issues across a full production stack.
• Background in financial services or asset management, touching compliance, regulatory reporting, financial data, or accounting workflows.
• Experience building or integrating AI agent-based or LLM-powered workflows into production systems.
• Proven ability to design auditable systems handling sensitive data.
• Ownership mentality and ability to operate autonomously in a fast-paced environment.
• Exposure to evaluating and introducing new technologies and engineering approaches.

Responsibilities

• Own design, reliability and evolution of critical operating systems.
• Build and modernise platforms and data infrastructure supporting trading compliance and regulatory reporting.
• Translate complex regulatory requirements into robust, auditable software solutions.

Skills

Full-stack development

Cloud-native architecture

CI/CD practices

Software architecture

Stakeholder communication

Autonomous ownership

AI/LLM workflows

Production reliability

Data modelling

Legacy modernization

Job description

Senior Software Engineer – Leading Global Hedge Fund – Excellent Compensation + Benefits

My client, a US-based global hedge fund, is looking to hire a Senior Software Engineer to join their Operating Platform Technology function.

The successful candidate will work closely with Operations, Compliance, Treasury, Finance, Tax, Legal and HR, building and modernising the platforms and data infrastructure that underpin firm-wide trading compliance, regulatory reporting, accounting and financial/management reporting.

The role combines hands‑on senior engineering with direct stakeholder partnership. You will take ownership of the design, reliability and evolution of critical operating systems, translating complex financial and regulatory processes into robust, auditable, production‑grade software.

This is a full‑stack role spanning front‑end, back‑end and data pipeline work, with a strong focus on modernising legacy systems into scalable, cloud‑native architecture, and increasingly, on embedding AI/agent‑based automation into operational workflows.

Requirements:

• 5+ years of professional software engineering experience, with a strong track record of delivering and operating production systems at scale


• Solid full‑stack background and comfortable across a modern front‑end framework, back‑end development (e.g., C#/.NET or Python), and both relational and analytical data stores


• Hands‑on experience building and deploying cloud‑native applications, with containerisation, infrastructure‑as‑code, and modern CI/CD practices


• Strong grounding in software architecture, API design, data modelling and system integration


• Experience modernising or re‑platforming legacy systems without disrupting live, business‑critical operations


• Excellent communication skills, with the ability to work directly with non‑technical stakeholders and translate business or regulatory requirements into technical solutions


• Comfortable diagnosing and resolving issues across a full production stack in a well‑monitored environment


• Background in financial services or asset management, ideally touching compliance, regulatory reporting, financial data or accounting workflows


• Experience building or integrating AI agent‑based or LLM‑powered workflows into production systems


• Proven ability to design well‑controlled, auditable systems handling sensitive or regulated data


• An ownership mentality and the ability to operate autonomously in a fast‑paced, collaborative environment


• Exposure to evaluating and introducing new technologies and engineering approaches

My client offers a highly competitive compensation package, alongside a strong benefits offering and genuine investment in professional development, within a high‑quality, collaborative working environment.