Top Senior C# Jobs in Houston, TX

Leads architecture and hands-on development of scalable backend systems and APIs supporting real-time applications. Owns the engineering lifecycle, writes high-performance code, establishes testing and reliability practices, resolves production issues, guides technical roadmaps, collaborates cross-functionally, and mentors engineers. The role requires expertise in object-oriented backend development, distributed cloud systems, automated testing, system monitoring, and technical leadership.

Leads development of secure, scalable, high-performance, low-latency trading applications and user interfaces for global trading desks. Designs, codes, tests, reviews, debugs, and improves software across the SDLC. Drives adoption of responsible AI-assisted engineering practices, automates recurring remediation, evaluates vendor technologies, and mentors teams on secure, resilient delivery.

The Senior Software Engineer will lead projects for the Forms platform, designing and building features across web, mobile, and backend systems while mentoring other engineers and improving platform scalability and reliability.

Design, build, and operate cloud-native, enterprise-grade SaaS services on Azure. Lead architecture and design, develop APIs and UIs, apply AI-enabled engineering tools, ensure observability, support production incidents, and drive reliability, performance, and CI/CD improvements across teams.

Lead and deliver Java-based microservices and APIs for global equities derivatives trading. Design cloud-native, scalable solutions, integrate AI-assisted development and agentic pipelines, support Java/C#/JavaScript front-ends, participate in code reviews, and mentor teams on secure, high-quality engineering and deployment practices.

Design, build, automate, and operate enterprise-scale Microsoft Hyper-V virtualization across global data centers. Lead architecture, performance benchmarking, full-stack troubleshooting, automation (PowerShell, DSC, APIs), C#/.NET platform development, security hardening, documentation, and mentoring to ensure resilient, high-performance virtualization services.

Design, maintain, and own high-throughput data ingestion and processing pipelines. Lead architecture and reliability initiatives, collaborate with Product Management, deliver scalable backend services (C#), and support observability, deployments, and operational support on cloud-native platforms.

As a Senior Software Engineer, you'll develop and build tools for creative projects while leading feature development and collaborating with teammates.

Lead SRE efforts for DFIN SaaS: ensure availability, performance, scalability, and automation. Implement monitoring, CI/CD, IaC, container orchestration, AI-enhanced observability, incident response, RCA, and runbook automation while collaborating across engineering teams.

As a Lead Software Engineer, you'll design and develop GenAI platforms, integrate LLMs, mentor engineers, and solve technical challenges for scalable solutions.

Lead backend and full-stack work on the Payments team, building multi-gateway integrations (Stripe, PayPal), payment APIs, and customer payment UIs. Ensure secure, compliant (PCI-DSS) payment flows, reliability, observability, and scalability across AWS/Kubernetes microservices. Partner cross-functionally to design architecture, implement settlement/reconciliation, and maintain high availability.

Supports, maintains, troubleshoots, tests, and improves PDI enterprise software products. Diagnoses production issues, tunes SQL performance, documents solutions, estimates feature work, and collaborates with product and engineering stakeholders in an Agile environment. Uses AI-assisted development tools and contributes to AI-powered engineering workflows. Provides technical guidance to less experienced engineers and communicates customer risks, status, and escalation needs.

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.

Design, develop, test, and deploy enterprise applications for the Nexus platform using full-stack technologies. Lead architecture and modernization initiatives, develop REST APIs and microservices, and implement Azure-based cloud and DevOps solutions. Mentor developers, conduct code reviews, improve software quality and performance, support automated deployments, and collaborate with product, QA, architecture, and business teams in an Agile environment. Troubleshoot production issues and reduce technical debt through scalable, secure, and reusable solutions.

Design and implement significant features, analyze product and database architecture for improvements, build RESTful APIs, enhance infrastructure and CI/CD, lead code reviews, mentor junior developers, and collaborate in agile ceremonies to improve reliability and efficiency.

Lead design and build of production-ready cloud and AI systems, prioritize security and reliability, ship solutions quickly using modern engineering practices, collaborate with cross-functional teams, mentor engineers, drive customer adoption, and deliver reusable assets and end-to-end complex deliveries.

Designs, develops, and scales enterprise process automation, custom applications, APIs, integrations, AI agents, and intelligent workflows. Partners with architects and business stakeholders to translate requirements into scalable Microsoft-based solutions. Responsibilities include integrating ERP, CRM, CPQ, databases, and cloud platforms; troubleshooting and optimizing software; participating in architecture reviews; documenting solutions; evaluating emerging technologies; and supporting governance, security, and compliance.

Own end-to-end full-stack features for client- and team-facing servicing applications. Design and implement front-end (Next.js/React) and back-end (.NET/C# with NestJS GraphQL), deploy and operate on AWS/EKS, use AI-assisted development workflows, collaborate with cross-functional and distributed teams, and mentor engineers while participating in on-call rotation for production reliability.

Senior Software Engineer responsible for developing and maintaining web applications and microservices (React, Golang). Mentor team members, lead code reviews, influence technical decisions, improve CI/CD and testing strategies (unit, E2E, performance), collaborate across teams on integrations, and promote engineering best practices and documentation.

Lead architecture and hands-on development of the end-to-end video pipeline (live ingest, transcoding, storage, playback, and developer SDKs). Mentor engineers, collaborate across mobile/web/ML/platform teams, own monitoring and on-call support, and help scale video streaming and VoD capabilities for millions of streams and clips.

Lead design and implementation of modernized insurance underwriting and policy administration solutions. Drive cloud transformation, data-driven and secure architectures, improve risk selection and claims resolution, enhance customer experience through automation, mentor technical teams, manage client relationships, and oversee project lifecycle, budgets, and delivery quality.

Develop and maintain modern, data-driven full-stack .NET web applications using C#, ASP.NET MVC, Oracle SQL, PL/SQL, and Oracle APEX. Responsibilities include architecture, coding, testing, integrations, troubleshooting, root-cause analysis, performance improvements, source control, documentation, and solution design. The role collaborates with internal customers, supports process improvements, and follows software development standards.

Design and implement PostgreSQL internals, indexing, query engine extensions, and storage-layer features to support large-scale document workloads on Azure. Profile distributed systems, tune performance, collaborate with open-source communities, conduct design/code reviews, and drive cross-team alignment for mission-critical database features.

Volunteer senior developer to design, build, and maintain a cross-platform medical scheduling app (web, iOS, Android). Participate across the full development lifecycle: design, coding, testing, CI, deployments, code reviews, production support, incident management, and platform architecture. Attend weekly standups and commit at least four hours per week.

Design, build, and maintain production-grade .NET web applications and APIs on Azure. Own full-stack delivery from data models and SQL to front-end components, CI/CD, testing, and architecture. Collaborate with product and delivery teams, participate in code reviews, and ensure secure, observable, well-tested services.