Senior Software Engineer - Product

ElectronX•New York, NY

1d•Onsite

About The Position

ElectronX is seeking an experienced Senior Software Engineer to help build the foundation of their exchange. The role involves shipping the core trading infrastructure, including the matching engine, market data distribution, customer-facing trading interface, APIs, real-time surveillance, and data pipelines. The engineer will own architectural decisions, balancing performance, reliability, and regulatory requirements, while integrating security and compliance. Beyond coding, this role includes evolving engineering principles, mentoring new hires, and collaborating with various teams to translate market needs into production systems.

Requirements

Bachelor's degree in Computer Science, Engineering, or a related field (or equivalent practical experience)
5+ years of full-stack software engineering experience, with a proven ability to build systems from scratch
Expert-level proficiency in at least one backend language; Python and/or Go preferred
Expert-level proficiency in TypeScript and React
Experience designing, building, and deploying APIs, services, and user-facing applications
Strong understanding of distributed systems, API design, and scalability patterns
Experience with relational databases (PostgreSQL, MySQL) and data modeling
Experience with version control (Git), CI/CD, and modern development tooling
Working knowledge of software security best practices
Ability to write clean, maintainable, well-tested code

Nice To Haves

Financial services or trading systems experience — trading platforms, market data, order routing, or exchange technology
High-performance systems experience — low-latency or high-throughput systems (matching engines, pricing systems, real-time data processing)
Regulated environments — fintech, healthcare, or other compliance-heavy industries
Early-stage startup experience as one of the first 10 engineers helping scale a company
Cloud platforms (GCP, AWS, Azure) and infrastructure as code
Familiarity with FIX protocol or other trading protocols
Understanding of derivatives, futures, or commodities markets
Experience with real-time systems and WebSocket / streaming technologies
DevOps experience (Docker, Kubernetes, Terraform)
Background in data engineering or analytics infrastructure
Passion for energy markets, clean energy, or climate tech

Responsibilities

Build Core Exchange Infrastructure
Design and implement our trading engine, order matching system, and market data distribution platform
Develop, ship, and iterate our customer-facing trading interface
Build APIs and integrations for market participants, clearinghouses, and data vendors
Develop real-time market surveillance and monitoring systems
Create admin tools and internal dashboards for operations and compliance teams
Build scalable data pipelines for market data, trade reporting, and analytics
Own Technical Architecture
Design systems that balance performance, reliability, and regulatory requirements
Contribute to evolving team standards for engineering best practices, code quality, and development workflows
Implement security controls and compliance-focused engineering practices
Raise the Engineering Bar
Champion and evolve our engineering principles as the team grows
Contribute to strong documentation and knowledge-sharing across the team
Mentor teammates and help new hires ramp up
Reinforce a culture of ownership, quality, and continuous improvement
Collaborate Cross-Functionally
Collaborate with the Product and Strategy and Design teams to translate market needs into technical solutions
Work with compliance and legal teams to ensure systems meet CFTC regulatory requirements
Coordinate with infrastructure and security teams on deployment and monitoring
Engage directly with early customers and trading firms to understand their needs