Top Senior Software Engineer Jobs in San Antonio, TX

Own the development and maintenance of large-scale React Native applications for iOS and Android. Lead architecture improvements, React Native upgrades, native module development, performance optimization, automated testing, CI/CD reliability, and production debugging. Collaborate with cross-functional product pods, contribute to technical discovery and architecture, mentor engineers, and raise engineering standards while delivering scalable, maintainable mobile experiences.

Design, build, and operate foundational developer infrastructure across CI, build systems, deployment orchestration, and test platforms. Improve build speed, deployment safety, and test reliability while owning services end to end, including SLOs, observability, and on-call responsibilities. Partner with engineering teams to address platform pain points and lead cross-cutting technical projects through production.

As a Software Engineer on the Data side of the AI team, you will manage data collection and infrastructure to improve model training and enhance data quality at scale.

Lead back-end software development teams in designing, building, and maintaining scalable enterprise applications, APIs, databases, and infrastructure. Responsibilities include solution development, performance testing, data storage design, system modernization, automation, mentoring, risk identification, and technical leadership using Agile practices and modern frameworks.

Designs, develops, tests, troubleshoots, and implements Java software capabilities, enterprise APIs, RESTful services, and microservices. Uses AI coding agents for feature development, refactoring, testing, and codebase navigation. Collaborates in an agile team, manages multiple deadlines, maintains software quality and security, and supports evolving technologies. The role requires hybrid work in Columbia, Maryland, or San Antonio, Texas, and eligibility to obtain a U.S. government security clearance.

Senior software engineer responsible for enterprise test management and software testing across Air Force human resources systems. Duties include developing test strategies, plans, and reports; coordinating multi-phase testing; supporting Agile software engineering, automation, ALM tools, cybersecurity compliance, RMF, and system sustainment. The role also involves requirements analysis, technical documentation, solution development, configuration support, and evaluation of modern technologies such as Kubernetes, microservices, APIs, and CI/CD.

Develop and maintain automated test suites and software solutions for Air Force HR systems, including MilPDS and legacy applications. Perform manual testing, test procedure creation, defect logging, documentation, source-code support, and CI/CD pipeline integration. Apply Agile software engineering, cybersecurity practices, RMF knowledge, scripting, tool engineering, and quality verification. Evaluate technologies such as Kubernetes, infrastructure as code, APIs, and microservices while supporting enterprise automation tools including UiPath and OpenText UFT One.

Build and maintain web applications for data lake and warehouse products using JavaScript, CSS, and HTML. Collaborate with designers, backend engineers, and data scientists; develop REST API integrations, write unit tests, perform QA, conduct code reviews, troubleshoot customer issues, and provide application support. The role requires hybrid work in San Antonio and eligibility for a U.S. government security clearance.

Develops and evaluates software and Oracle database solutions supporting Air Force personnel systems. Responsibilities include reviewing PL/SQL code and schemas, building automated database tests and synthetic data utilities, integrating schema-as-code and testing into CI/CD pipelines, analyzing system architecture, enforcing cybersecurity and compliance requirements, documenting engineering work, and supporting Agile software development. Requires extensive software engineering experience, DoW experience, Oracle database expertise, U.S. citizenship, and an active Secret clearance.

Own performance optimization, reliability, observability, capacity modeling, and automated failover for Coinbase’s blockchain node infrastructure. Diagnose resource bottlenecks, reduce infrastructure costs, define SLOs and SLIs, support protocol upgrades, and improve node performance across distributed systems at scale. Collaborate with protocol integration, wallet, and indexer teams while applying backend programming and systems profiling expertise.

Design, build, and operate scalable, secure data platform infrastructure for ingesting, processing, cataloging, and accessing petabytes of data. Improve Spark/Databricks reliability and developer experience, build ingestion/replication systems, develop internal libraries and tooling (Go/Python), and collaborate with cross-functional teams to support analytics, ML, and customer-facing data products.

Build and scale backend data platforms and services for real-time loan origination and financial reporting. Lead quarterly delivery, guide engineers, define technical plans, collaborate with product and design partners, improve reliability and operational practices, monitor service metrics, participate in on-call support, uphold engineering quality standards, and mentor team members. The role requires developing highly available distributed systems and scalable data pipelines using technologies such as Python, Kotlin, AWS, MySQL, Kubernetes, Spark, and Airflow.

As a Senior Principal Engineer, you'll define and drive the technical strategy for customer experience platforms, lead architectural decisions, and mentor engineering teams to enhance customer and agent experiences.

As a Fullstack Software Engineer, you'll design, develop, and maintain scalable frontend and backend systems while collaborating across teams.

Own commercial navigation features end to end across mobile, backend, and web surfaces. Build reliable, customer-facing navigation experiences for commercial fleets despite poor connectivity, dynamic schedules, and changing routes. Define product priorities and success metrics, ship maintainable and tested code, improve observability, and collaborate with product, design, Maps, Telematics, and adjacent engineering teams. The role requires strong customer focus, technical depth, and the ability to make practical tradeoffs in ambiguous problem spaces.

Senior frontend-focused software engineer responsible for authentication, verification, and fraud experiences across web, mobile, and backend systems. The role owns team goals, designs and delivers highly available systems, collaborates with product and design partners, improves engineering standards, supports operations and on-call efforts, and mentors engineers. Candidates should have strong web application architecture experience, proficiency with React or Vue and JavaScript or TypeScript, and excellent communication skills.

Design, build, and operate scalable distributed systems for real-time restaurant payment and financial workflows. Responsibilities include architecting reliable services, protecting sensitive financial data, improving observability and production performance, debugging distributed systems, participating in on-call rotations, applying AI-assisted engineering tools, collaborating cross-functionally, and mentoring engineers.

Build and operate foundational developer infrastructure across CI, build systems, deployment orchestration, and test platforms. Improve build speed, deployment safety, test reliability, observability, and engineering productivity at scale. Own services from architecture through production, including SLOs and on-call operations. Lead cross-functional technical projects, partner with engineering teams, mentor engineers, and shape platform strategy.

Build and ship production software for Toast’s retail platform, partnering with engineering, product, and customers. Responsibilities include identifying opportunities, designing and prototyping end-to-end solutions, making foundational technical decisions, incorporating customer feedback, tracking industry trends, and deploying AI-powered experiences. The role supports large grocery and convenience-store customers and may involve visiting stores to understand operator workflows.

Design and develop scalable C++ software for endpoint state and control across Windows, macOS, and potentially Linux. Build reliable, multi-process systems that enforce endpoint behavior, manage local state, support IPC, and operate across millions of devices. Responsibilities include implementing features, improving platform performance, writing design documents, defining architecture and IPC contracts, and making technical decisions in an evolving, sparsely documented environment.

Build and operate secure, scalable multi-cloud infrastructure across AWS, GCP, and networking platforms. Develop self-service tooling, infrastructure-as-code defaults, cloud guardrails, and standardized platform patterns. Lead cross-team infrastructure initiatives, technical investigations, and operational improvements while partnering with security, compute, routing, and other infrastructure teams.

Develop high-performance, accessible, responsive user interfaces using React and Storybook. Collaborate with designers, product owners, and engineers to build reusable design-system components, write secure maintainable code, participate in code reviews, lead cross-team initiatives, document processes, and improve systems through refactoring and testing.

Build and operate blockchain network infrastructure integrating protocols such as Bitcoin and Ethereum with internal services. Design reliable APIs, SDKs, data contracts, observability, and SLOs; lead multi-quarter chain integrations, architecture modernization, and migrations. Improve latency, reliability, and cost for high-throughput distributed systems while owning production services and on-call responsibilities.

Lead technical strategy and execution for multi-quarter initiatives, build and maintain software systems using AI, mentor and elevate engineers, collaborate across disciplines, and protect user privacy and security. The role involves working in an AWS and Kubernetes environment with technologies including Python, TypeScript, React, Go, Airflow, dbt, and Claude Code.

Build scalable, API-first platform capabilities through manifest-driven development. Develop Java and Kotlin backend services and Python workers for third-party integrations, collaborate across engineering teams, participate in architecture reviews, and troubleshoot production systems using logs, metrics, and traces. The role requires expertise in highly scalable systems, object-oriented design, REST services, relational databases, responsive messaging, caching, and software quality practices.