Top Software Engineer Jobs in San Antonio, TX

As a Fullstack Software Engineer, you'll design, build and own the onboarding experience for Twilio's Stytch identity product, creating secure integration solutions for developers and enhancing customer authentication.

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.

Build and own user-facing features and core platform architecture across frontend, backend, and ML pipelines. Integrate AI workflows (LLMs, embeddings) for curriculum generation and automated evaluation. Manage end-to-end development: requirements, design, implementation, CI/CD, testing, observability, and iteration while collaborating with product, design, ML, and customer teams.

Develop and customize applications on the Infor CloudSuite Industrial (SyteLine) platform, integrate third-party systems, and build full-stack web applications. Troubleshoot Infor environments, implement front-end interfaces and backend logic, participate in code reviews, and collaborate with analysts and stakeholders to deliver high-quality payment-processing solutions.

Design and build platforms for new products, develop generative AI features, ensure system reliability, and foster a collaborative culture in a startup environment.

Design, build, and scale distributed backend platforms and APIs. Lead technical design, own production systems, improve CI/CD, observability, and reliability. Mentor engineers, drive engineering best practices, and leverage AI-assisted tools to improve productivity and quality.

Build, operate, and scale cloud-native backend services and APIs for a high-volume vehicle marketplace. Embed AI-driven capabilities into features, use AI tools to accelerate development, participate in on-call rotations, improve reliability, and collaborate with Product, Data, Infrastructure, and SRE teams to deliver production-ready systems.

Design, build, and own full-stack features and platform primitives for Vanta's Integrations Platform. Develop authentication, data-ingestion, and schema-evolution services; build secure, scalable services and UIs with TypeScript, React, and Node.js; improve performance and operational excellence; use AI tools to accelerate development; collaborate across teams to enable a large ecosystem of integrations.

Develop, test, and maintain platform features and services for a digital health platform. Collaborate with product and design teams, write clean code, participate in reviews, debug issues, assist with API development and integrations, and help improve performance, reliability, and scalability while learning modern tools and cloud technologies.

Lead design and implementation of Doowiis frontend, backend, and data systems. Define architecture, build scalable ingestion and analytics pipelines, optimize storage and query performance, ship AI-driven features (LLM/text-to-SQL, embeddings), improve observability and deployment, and mentor engineers while partnering with product and ML teams.

Design and develop features for a programmatic audio advertising platform. Collaborate with designers and product managers to build user-facing applications, implement tracking and analytics, and maintain front-end code using Less/SASS, HTML/CSS, and JavaScript.

As a Staff Software Engineer, you will define technical strategy for Drive-Thru solutions, standardize Android practices, and ensure seamless integration between mobile clients and backend services while mentoring peers.

As a Senior Software Engineer, you will design best practices for AI Agents, develop standards, collaborate on product opportunities, and stay updated on emerging Agent techniques.

Drive the Continuous Integration team, ensuring build systems' reliability and scalability, and mentor CI engineers while improving developer productivity through automation and tooling.

The Senior Software Engineer at Order.co designs complex features end-to-end, mentors junior engineers, and participates in design reviews while ensuring quality and reliability of systems.

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 full-stack engineer role designing, building, and maintaining scalable, event-driven near-real-time systems. Work spans frontend (React/Next), backend (TypeScript/Node), data pipelines (Kafka), databases (Postgres), containerization (Docker), cloud deployments (AWS/Azure/GCP), and CI/CD. Drive architecture, mentor engineers, troubleshoot across stack, and own features from design through production support in a defense/aviation context.

Own cross-team, platform-level engineering initiatives end-to-end: architecture, migrations, observability, on-call, and customer outcomes. Drive AI-native tooling and agentic AI adoption, mentor senior engineers, and set technical standards across teams.

Lead technical design, build, and operate scalable, secure healthcare integration systems. Drive architecture, event-driven distributed systems, APIs, observability, IaC, CI/CD, incident response, cross-functional delivery, and mentor engineering teams.

Build and operate billing and payments services using Node.js/Go and Vue.js. Develop integrations with payment and accounting systems, ensure runtime reliability on AWS (SQS, Lambda), drive CI/CD and automated testing, write design docs and runbooks, mentor engineers, and optimize high-throughput, latency-sensitive workloads.

Design, build, and maintain scalable, secure backend services in Python. Implement SQL and NoSQL data models, CI/CD pipelines, and containerized deployments. Collaborate with product, front-end, and design teams, perform code reviews, optimize performance, troubleshoot production issues, mentor junior engineers, and improve development processes and infrastructure.

Develop and maintain spacecraft flight software across the full lifecycle: requirements, design, implementation, testing, integration with HIL and flight hardware. Build tools and simulations, perform subsystem and platform-level tests, support anomaly resolution, systems modeling, and proposal efforts while collaborating with manufacturing and customers.

Design, build, test, and maintain React Native features for Hertz consumer mobile apps on iOS and Android. Collaborate with cross-functional teams, integrate APIs and third‑party services, optimize performance, resolve production issues, contribute to CI/CD and testing, and improve mobile UX and accessibility.

Design, develop, and optimize high-performance C++ systems for ultra-low-latency media streaming. Build and improve streaming pipelines (WebRTC, GStreamer, RTP/RTCP), analyze performance across server, network, and media pipelines, and collaborate with encoding, cloud networking, and systems teams to define KPIs and reduce latency for cloud gaming and related use cases.

Drive technical strategy and roadmap for Affirm's Online Storage platform. Design and build multi-region, highly available datastore solutions and control planes for hundreds of databases. Automate schema migrations, disaster recovery, sharding, and performance tuning. Collaborate with product, SRE, and infrastructure teams, own operations and on-call readiness, and mentor engineers while setting code and design standards.