ATS System Software Developer

Project description

We are looking for an experienced Principal Technology Architect to support the assessment, modernization, and optimization of mission-critical electronic trading and financial-data platforms within a complex financial-services environment. The project focuses on evaluating existing technology architecture, identifying performance and operational risks, improving data processing and integration capabilities, and ensuring high availability and production resilience. The ideal candidate will bring deep expertise in electronic trading systems, market-data architecture, order and execution processing, financial reporting, and distributed systems. The role requires a combination of strategic technology advisory, hands-on architecture design, and practical engineering experience, working closely with business stakeholders, technology leadership, and development teams.

Responsibilities

• Assess existing application, infrastructure, and data architectures to identify technical limitations, operational risks, and opportunities for improvement. Design and optimize electronic trading platforms, including market-data pipelines, exchange connectivity, order routing, and execution processing. Review and enhance financial-data ingestion, transformation, reconciliation, persistence, and reporting processes. Architect high-throughput, scalable, and fault-tolerant distributed systems. Evaluate FIX messaging, exchange API integrations, and order and execution recovery mechanisms. Identify root causes of production incidents, performance bottlenecks, and system failures. Define and implement high-availability, disaster recovery, and business-continuity solutions. Assess cloud infrastructure, security controls, monitoring, and deployment practices. Develop practical architecture recommendations and prioritized remediation roadmaps. Support modernization of legacy applications while preserving critical business functionality. Provide hands-on technical leadership, including solution design, troubleshooting, and implementation of critical components. Collaborate with senior management, business stakeholders, and engineering teams to align technology solutions with business and operational requirements. Improve engineering standards, development processes, and production support capabilities.

SKILLS

Must have

• Extensive experience in enterprise software architecture and complex financial-services technology environments. Strong background in electronic trading systems, capital markets, or broker-dealer platforms. Deep understanding of trading workflows, including order lifecycle management, execution processing, and market-data distribution. Hands-on experience with FIX protocol, FIX messaging, and exchange connectivity. Proven expertise in distributed systems, asynchronous processing, high-throughput architectures, and fault tolerance. Strong experience in data architecture, data ingestion, transformation, reconciliation, and transaction persistence. Advanced programming experience with Java and SQL. Experience with relational databases such as Oracle, PostgreSQL, MySQL, or Sybase. Strong understanding of application performance profiling, optimization, and production troubleshooting. Experience designing high-availability solutions, disaster recovery mechanisms, and operational recovery procedures. Practical experience with AWS cloud infrastructure and services. Ability to independently conduct architecture assessments and translate findings into actionable technical recommendations. Strong communication skills and experience collaborating with senior technology leadership and cross-functional teams.

Nice to have

Experience designing or developing high-frequency trading platforms and multi-exchange trading systems. Knowledge of fixed-income electronic trading platforms. Experience with broker-dealer regulatory reporting, trader/desk P&L, and financial reconciliation. Familiarity with FIX replay and exchange-specific REST APIs for order and trade recovery. Experience with Spring, Python, C++, C#, Go, or JavaScript. Knowledge of WebSocket and REST-based integration architectures. Experience with AWS EC2, RDS, S3, and CloudWatch. Hands-on experience with Docker, Terraform, CI/CD, and infrastructure automation. Understanding of security controls, access restrictions, logging, and secrets management. Experience supporting FINRA-related technology readiness and operational controls. Knowledge of cloud cost optimization and infrastructure efficiency. Experience in legacy system modernization, technology due diligence, and distressed-project recovery. Familiarity with AI-assisted software development practices. Previous experience as a Principal Architect, Fractional CTO, Interim CIO, or senior technology advisor within financial services.