Top Senior C# Jobs in Houston, TX

Lead architecture and roadmap for Azure PostgreSQL systems; design and review scalable, maintainable database engine features (query processing, storage, transaction logging, recovery, versioning, IO, scale-out). Influence coding standards and run code reviews, write proof-of-concept or production code, contribute to open-source PostgreSQL/Linux, and participate in rotational on-call operations.

Develop scalable test automation frameworks, QA tools, and intelligent testing systems using Playwright, C#, and JavaScript/TypeScript. Integrate automated testing into CI/CD pipelines, build end-to-end, integration, and performance solutions, and apply AI techniques to improve test generation and defect detection. Partner with engineering and QA teams, troubleshoot reliability issues, contribute to test strategy, and mentor colleagues on automation and modern testing practices.

Lead architecture and hands-on development for AccessOne’s financing platform across frontend, backend, data systems, integrations, and cloud infrastructure. Modernize production systems, build accurate and auditable financial workflows, lead complex initiatives through deployment, and establish engineering practices. Use AI coding tools responsibly while ensuring software quality, security, testing, reliability, and maintainability.

Administer and improve CDC directory services, including Active Directory, FIM integrations, Exchange, DNS, DHCP, DFS, and related Windows services. Develop C# FIM extensions and PowerShell automation, synchronize SQL, LDAP, and directory data, troubleshoot escalated messaging and identity issues, monitor recovery processes, maintain documentation, and support deployments through approved remote-access and change-control procedures.

Leads architecture and development of complex backend services for a commercial health plan platform. Designs .NET Core and Azure systems, develops claims, eligibility, and benefits functionality, manages healthcare data integrations, and owns cloud infrastructure and CI/CD architecture. Provides technical leadership through code reviews, testing standards, mentoring, and architecture decisions while ensuring performance, reliability, security, and regulatory compliance.

Design and build reusable backend platform services, libraries, frameworks, integrations, and AWS infrastructure abstractions. Establish reliability, security, observability, testing, compatibility, and deployment standards for consuming teams. Direct AI-agent implementation through specifications and contracts, review generated and human code, manage incidents, and drive production adoption of shared platform capabilities.

Develops and supports Azure integration solutions using Logic Apps, Azure Functions, API Management, Event Grid, and Service Bus. Writes C#/.NET code, builds REST and SOAP integrations, manages Azure SQL and storage, and defines infrastructure with Terraform. Implements CI/CD, monitoring, diagnostics, retries, idempotency, and secure access controls. Collaborates with stakeholders on technical designs, documents solutions, and troubleshoots production systems.

Lead technical ownership of InfiniBand and GPU interconnect fabric operations for hyperscale AI supercomputers. Drive incident response, deep multi-layer debugging across hardware/firmware/drivers/OS, and define failure models, playbooks, telemetry, and automation to improve reliability, observability, and scalability of GPU clusters and platform SLAs.

Lead the evolution of the Password Safe platform and infrastructure across cloud and on-premises environments. Design highly available systems, optimize platform services, standardize CI/CD and infrastructure-as-code practices, and establish GitOps workflows. Build observability, SLOs, chaos engineering, and disaster recovery capabilities. Serve as a technical leader by defining SRE strategy, mentoring engineers, conducting design and incident reviews, and influencing the engineering roadmap.

Develop and optimize Microsoft .NET applications, legacy systems, and microservices with a focus on performance, scalability, reliability, and observability. Responsibilities include code reviews, performance testing, CI/CD integration, architecture and sprint delivery, legacy code and SQL tuning, cloud application deployment on Azure, automated testing, and resolving customer issues. The developer collaborates with architects, QA, technical support, and cross-functional teams using SAFe Agile practices.

Develop chromatography data-processing algorithms for cloud-based Empower data systems and collaboration software. Responsibilities include implementing peak integration, calibration, and quantitation algorithms; migrating legacy C++ to .NET Core/C#; applying numerical methods and AI/ML; optimizing performance through parallelism; writing unit tests; refining requirements with stakeholders; and preparing technical reports, patents, and project updates.

Leads software design and development for Windows Core OS services and platforms. Partners with stakeholders to define requirements, identifies dependencies, creates design documents, and mentors engineers in producing maintainable code. Drives cross-product project and release planning, serves as a designated responsible individual, participates in on-call operations, and improves system availability, reliability, observability, efficiency, and performance.

Leads architecture, hands-on software development, deployment, and production issue resolution for strategic customer projects. Drives AI innovation, platform resiliency, security, observability, performance, and operational improvements. Partners with executives, engineering, product, and customer success teams to prioritize strategic programs, improve customer value, share technical best practices, and remove production blockers.

Provides technical leadership for Azure cloud-scale distributed data platforms processing network telemetry and operational data. Defines architecture and long-term technical strategy, leads streaming and batch system design, resolves complex scalability and reliability challenges, oversees production readiness and continuous improvement, and influences cross-team technical investments. Partners across Azure Networking, conducts design reviews, establishes reusable engineering patterns, improves observability and quality, and mentors engineers and technical leaders.

Designs, develops, and optimizes Dynamics 365, Dataverse, and Power Platform marketing technology solutions. Responsibilities include creating plugins, workflows, integrations, and automation; managing ALM, deployments, releases, data governance, and technical documentation; enforcing coding and quality standards; troubleshooting performance and stability issues; translating business requirements into scalable solutions; and mentoring junior developers.

The Senior Developer designs, develops, integrates, and optimizes laboratory information management systems and related applications. Responsibilities include building LIMS modules, APIs, data pipelines, and system interfaces; managing data migration and quality assurance; developing tests; troubleshooting complex issues; supporting UAT and escalated incidents; maintaining technical documentation; ensuring regulatory and data integrity compliance; and mentoring junior developers. The role collaborates with business analysts, QA, laboratory staff, IT, and external vendors, with occasional travel required.

Designs and implements enterprise AWS solutions for contact centers, primarily using Amazon Connect and Salesforce Service Cloud Voice. Responsibilities include developing integrations, configuring cloud services, advising on technical requirements, leading development teams, conducting code reviews, troubleshooting, documenting solutions, and training users. The role requires programming proficiency, AWS architecture knowledge, infrastructure automation, CI/CD experience, and the ability to lead technical delivery with minimal direction.

Leads the design, implementation, and support of complex, scalable software components and distributed systems. Provides technical leadership through architecture decisions, mentoring, code and design reviews, troubleshooting, and engineering standards. Partners with product, quality, architecture, and DevOps teams on secure cloud-native solutions, CI/CD, observability, performance, releases, and platform modernization. Participates in hiring and communicates technical risks and tradeoffs to stakeholders.

Lead architecture, development, and technical strategy for scalable cloud-native applications, distributed services, APIs, data platforms, workflows, and AI-powered capabilities. Drive modernization, reliability, security, observability, CI/CD, and operational excellence across teams. Translate complex requirements into scalable technical solutions, mentor engineers, influence architecture, and develop intelligent experiences using generative AI, RAG, agents, and automation.

Designs and builds cloud-native maintenance planning software for U.S. Navy and defense customers. Responsibilities include modernizing legacy systems, developing data transformations and APIs, designing microservices, implementing identity and access controls, ensuring data quality and compliance, and leading architecture and technical delivery. The role collaborates with government, vendor, platform, and engineering stakeholders, mentors engineers, documents systems, and supports development through production sustainment in a remote environment.

Lead the automation strategy for a live AAA mobile game, building the team, frameworks, tooling, standards, and quality gates needed for frequent releases. Responsibilities include hiring and mentoring, designing automated UI/API/mobile tests, integrating testing into CI/CD, establishing metrics and observability, providing hands-on technical leadership, and partnering across Engineering, QA, Product, Live Operations, and external teams to improve release quality.

Lead two or more software engineering teams building and operating TopstepX, a real-time trading platform. Responsibilities include coaching and developing engineers, hiring and capacity planning, prioritizing delivery amid changing needs, and ensuring system availability, performance, quality, and resilience. The role requires leadership of production systems, incident response, observability, reliability investments, and collaboration with Product and business stakeholders.

Leads the design, development, deployment, and support of scalable, fault-tolerant software applications. Responsibilities include architecture, coding, debugging, performance optimization, cloud-native and microservices development, Kubernetes operations, production monitoring, incident response, code reviews, technical planning, mentoring, and cross-functional collaboration. The role also contributes to product roadmaps, engineering standards, automation, and on-call support.

Leads and develops backend software engineering managers and technical teams, establishes development metrics and delivery processes, and drives high-quality product releases. Partners with design and business teams on customer-centered experiences, facilitates cross-functional planning, mentors employees, improves engineering practices, and supports long-term organizational and product goals.

Designs and maintains scalable automated testing frameworks and end-to-end test suites using modern automation tools. Integrates testing into CI/CD pipelines, reduces test flakiness, analyzes defects and performance issues, and guides risk-based testing strategies. Partners with Engineering and Product teams to embed quality throughout development, supports observability and troubleshooting, and promotes shift-left testing and continuous quality improvement.