Top Senior Python Jobs in Houston, TX

As a Software Engineer at Citadel, you will build systems for investments, collaborate with researchers, and tackle complex problems.

Develop and maintain software applications using Python, Java, JavaScript, and AI-enabled technologies. Translate business requirements into technical designs, build microservices and enterprise integrations, debug and test code, support CI/CD releases, troubleshoot issues, and apply quality standards. Collaborate with stakeholders, interpret data, contribute to solution design, improve user experience, manage workstreams, and mentor junior team members.

Leads development of secure, scalable software solutions within an agile financial-services environment. Responsibilities include designing, coding, testing, debugging, reviewing production code, improving application stability through automation, applying AI-assisted engineering practices responsibly, and evaluating vendor and architectural solutions. The role requires advanced Python expertise, cloud-native experience, SDLC proficiency, software security knowledge, and familiarity with banking technology systems.

Leads reliability engineering for enterprise backup and data protection platforms, including Cohesity, Commvault, and NetBackup. Responsibilities include platform administration, disaster recovery, backup policy management, observability, incident response, resiliency design, automation, compliance certification, and AI-assisted operational workflows. The role mentors engineers, establishes service level objectives, improves platform stability, and supports mission-critical infrastructure through scheduled 7x12-hour shifts, including weekends.

Leads software engineering and SRE initiatives for secure, scalable production platforms. Designs Python or Java automation, LLM and agent solutions, data pipelines, monitoring, and resiliency practices. Owns application security, risk controls, compliance, lifecycle management, incident response, and service-level objectives. Coordinates execution across engineering teams, promotes AI-assisted development, and coaches teams on secure, responsible AI adoption.

Leads software and data engineering work within an agile team, designing, developing, debugging, and supporting secure production applications and data pipelines. Builds AWS cloud-native solutions using Python, Java, SQL, and Databricks; reviews code; automates recurring remediation; improves SDLC practices; and promotes responsible AI-assisted engineering. Evaluates vendor and architectural solutions while guiding teams on secure, resilient, and compliant development practices.

Leads architecture, design, and implementation of secure, scalable SDLC developer platform capabilities focused on SCM. Builds Java and Python solutions, designs AWS cloud architectures, implements Terraform infrastructure, integrates development tools, automates workflows, manages incidents, and collaborates with internal teams and vendors to improve platform reliability, resilience, governance, and developer productivity.

Leads architecture, development, and operation of secure, scalable SCM and developer platform capabilities. Builds Java and Python services, designs resilient AWS architectures, implements Terraform infrastructure, integrates enterprise development tools, automates workflows, and manages incidents. Partners with internal teams and vendors to deliver platform roadmaps, improve developer productivity, and strengthen reliability, governance, and security across a global engineering organization.

Leads software engineering within JPMorganChase’s Risk Technology team, providing technical direction and developing secure, scalable production code. Designs, tests, debugs, and supports applications while guiding engineers, contractors, and vendors. Drives adoption and governance of AI-assisted engineering practices, improves SDLC automation, establishes validation standards, and serves as a technical subject matter expert. Requires advanced Python, Pandas, NoSQL, Databricks, cloud-native experience, architecture expertise, and strong independent problem-solving and leadership skills.

Leads the development and deployment of data solutions using Palantir Foundry and AIP. Manages engineering teams, coaches team members, oversees project planning and execution, analyzes system interactions, manages client relationships, and drives innovation. The role applies software engineering, data engineering, analytics, and AI/ML techniques to deliver scalable client solutions while maintaining technical and professional standards.

Leads the development and deployment of software and data solutions using Palantir Foundry and AI/ML technologies. Responsibilities include data engineering, analytics, system improvement, client account management, project ownership, team leadership, coaching, stakeholder engagement, and continuous improvement. The role requires building scalable applications with large datasets and delivering customer-focused solutions.

Provides Level 3 customer support for HPE Cray Programming Environment software. Analyzes, reproduces, isolates, debugs, and resolves complex issues; develops workarounds; escalates unresolved problems to HPE R&D or external partners; performs pre-release testing; documents issue resolution; supports customers after hours; and mentors less-experienced staff.

Lead and support reliability, performance, and operational integrity of equities electronic trading systems. Provide hands-on DevOps/SRE production support for FIX connectivity, Linux troubleshooting, Grafana observability, Kafka on AWS, incident triage, root cause analysis, automation via Python and Bash, and cross-team collaboration including investigating C++ components.

Leads the design, automation, and operation of enterprise backup, recovery, data-protection, and resilience services across hybrid and cloud environments. Builds distributed systems, APIs, automation, observability, security controls, and AWS infrastructure. Drives reliability engineering practices, compliance readiness, recovery assurance, cross-functional delivery, stakeholder influence, and engineer mentorship.

Designs, integrates, validates, and supports end-to-end HPE infrastructure solutions across compute, storage, networking, software, Kubernetes, and cloud-native platforms. Develops Python automation, REST API integrations, infrastructure-as-code frameworks, proof-of-concepts, and reference architectures. Advises customers, delivers technical workshops and demonstrations, troubleshoots complex deployment issues, performs root-cause analysis, documents solutions, and collaborates with engineering, sales, partners, and customer teams.

Leads software engineering for equity derivatives risk management, designing, developing, troubleshooting, and reviewing secure Java applications. Builds resilient microservices, analyzes JVM and system performance, supports databases, messaging, cloud platforms, and full software development lifecycle tools. Drives automation, operational stability, and responsible adoption of AI-assisted engineering practices, including validation for security, correctness, and performance. Leads architectural evaluations with vendors and internal teams.

Develop and maintain automated UI and API test coverage, execute and analyze tests, perform exploratory and regression testing, investigate defects, and drive quality engineering improvements. Collaborate with software engineers and product managers on test strategies, contribute to technical designs, perform root cause analysis, and mentor junior engineers. The role also supports testing for performance, scale, security, and vulnerability concerns.

Design, build, test, and operate production-grade, secure, and scalable software and services. Partner with customers to translate requirements into technical designs, drive engineering best practices (CI/CD, testing, observability), deliver end-to-end solutions, lead technical workstreams, and apply AI/LLM approaches where appropriate to produce production-ready outcomes.

Leads the design, deployment, reliability, security, and operational excellence of cloud platforms and services. Responsibilities include observability, SLOs and SLIs, incident response, root cause analysis, infrastructure automation, DevSecOps, capacity planning, disaster recovery, performance optimization, and CI/CD. Partners with engineering teams on cloud architecture, tooling, security, and distributed systems while providing technical leadership and mentorship.

Develops, evaluates, integrates, tests, and debugs safety-critical Orion GN&C flight software supporting NASA’s JETS II contract. The role uses MATLAB, Simulink, C/C++, Python, and TRICK/JEOD for software development, simulation analysis, verification, and troubleshooting. It also improves flight software processes, procedures, build management, and integration activities while collaborating onsite with NASA personnel and contractor teams at Johnson Space Center.

Develop secure, scalable React Native applications for iOS and Android, along with backend APIs, cloud services, and supporting infrastructure. Implement authentication, offline synchronization, push notifications, location services, performance optimization, observability, testing, and CI/CD. Collaborate across product, design, security, engineering, QA, and DevOps teams; participate in architecture and code reviews, troubleshoot production issues, and mentor developers.

Leads the design, development, testing, integration, and delivery of complex security software applications. Provides architecture leadership, evaluates designs for quality and compliance, integrates new technologies, manages development partners, troubleshoots application issues, and mentors junior engineers. The role focuses on Windows application development, software architecture, security features, and cross-functional project leadership.

Leads the design, development, optimization, and troubleshooting of embedded firmware and software for hardware products. Oversees complex development projects, coordinates internal and outsourced engineering teams, documents protocols and requirements, ensures hardware-software integration, evaluates designs for compliance and quality, introduces new technologies, and mentors less-experienced engineers.

Develop Android operating-system components and HP-specific system services for enterprise and retail products. Responsibilities include device management, security, provisioning, telemetry, peripheral integration, debugging, compatibility testing, architecture reviews, documentation, and release readiness. The role collaborates with hardware, firmware, security, quality, product teams, ODMs, chipset vendors, and external partners to deliver maintainable platform capabilities across HP product families.

Leads the architecture, design, development, integration, testing, and maintenance of platform firmware and software systems. Provides systems engineering leadership across complex products, optimizes performance and scalability, reviews designs for compliance and quality, collaborates with internal and outsourced development partners, and mentors engineers. The role focuses on BIOS/UEFI, embedded systems, device drivers, hardware and firmware integration, security firmware, and technologies including USB-C, PCIe, and I2C.