Top Tech Jobs & Startup Jobs in San Antonio, TX

Own and expand a Three.js/R3F in-browser solar configurator: build and optimize 3D geometry tools and UX, collaborate with backend and simulation teams, ensure performant real-time rendering, and deliver frontend product features across the Aether platform.

Own and expand a Three.js-based in-browser solar configurator: implement and optimize 3D geometry tools and workflows, build product-facing frontend features, collaborate with backend and computational teams, translate solar physics into usable design tools, define frontend/3D architecture, and ensure performant, stable UX across edge cases.

Own and expand a Three.js-based in-browser solar configurator, build and optimize 3D geometry and design workflows, implement frontend product features, collaborate with backend and computational teams, and ensure performant, stable, and intuitive 3D UX.

Leads strategic initiatives, new business implementations, and client engagements from initiation through completion. Responsibilities include defining scope, building schedules and budgets, coordinating teams and vendors, managing risks and resources, tracking financial performance, reporting progress, maintaining client relationships, supporting training and recruiting, and driving continuous improvement. The role requires cross-functional leadership, stakeholder management, operational coordination, and delivery within established timelines and objectives.

Senior .NET Software Engineer responsible for end-to-end software development using Microsoft technologies. Requires extensive experience in SDLC, design principles, technical documentation, web application development with .NET, Agile/SCRUM, Entity Framework, database design, and version control. Familiarity with project tools JIRA, TEMPO, Bitbucket, and Confluence preferred.

Develop and maintain web-based applications using .NET/C#, JavaScript, HTML/CSS, SQL and Oracle/SQL Server. Perform root cause analysis, collaborate with teams for requirements, follow Agile SDLC, present change demonstrations, and use Azure DevOps/Jira for lifecycle management. Implement and maintain Blazor components.

Design, develop, and execute automated tests, perform API and performance testing, identify and document defects, collaborate with cross-functional teams to ensure product quality and resolve issues.

Build and maintain data-intensive, interactive web products across the full stack. Architect and implement API and frontend features, validate FastAPI responses with Pydantic, access Postgres via SQLAlchemy, optimize performance and scalability, implement testing and QA, participate in code reviews, refine UX, and help define engineering processes at an early-stage company.

Sell Grid Status's energy data analytics platform through full sales cycle: prospecting, demos, closing, renewals, and account expansion. Collaborate with founders and leadership to build pipeline, refine go-to-market strategy, meet quotas, maintain CRM records, and feed market insights to product and strategy teams.

Build and operate data-intensive web products and APIs, extend high-throughput ETL pipelines and scrapers, ensure reliability/observability, design self-scaling services, participate in code review, and collaborate across product, data, and infrastructure teams to meet production SLAs.

Develops business for water and wastewater operations by creating market strategies, identifying municipal and industrial prospects, mapping decision-makers, cultivating client relationships, supporting proposals and pricing, assembling pursuit teams, and helping secure contract renewals and new business through RFP, RFQ, and open-bid processes.

The Payroll Customer Success Manager serves as the main contact for customers, supporting onboarding, ensuring payroll accuracy, resolving issues, and building trust through proactive communication.

Marketing and business development intern supporting market research, lead generation, outreach, pitch materials, campaign execution, competitor analysis, KPI reporting, funnel optimization, events, and partnership initiatives. The role is remote, part time, and unpaid, with mentorship and potential future employment based on performance.

Freelance media lawyer advising on commercial contracts, creator and athlete agreements, intellectual property, licensing, brand partnerships, sponsorships, rights clearances, and content usage. The role requires rapid, practical, commercially focused legal support across media, sports, entertainment, events, and talent matters on an ad hoc basis.

Design, build, and maintain scalable data pipelines, data lakes, and databases; ingest and map customer financial datasets; monitor pipeline reliability; translate business requirements into data flows and analytical insights to ensure high-quality, usable data.

Owns functional software definition for warehouse execution projects, translating presales scope into detailed specifications, estimates, integration designs, and delivered software. Leads customer workshops, onsite discovery, Scrum ceremonies, backlog management, and collaboration with development and controls teams. Defines WMS/ERP, third-party subsystem, IT, network, and controls integrations while maintaining alignment between specifications and implementation. Provides roadmap input and supports project delivery and commissioning at customer sites, with travel up to 50%.

Own the technical aspects of enterprise airline deals from qualification through deployment and expansion. Design integration and cloud architectures, lead demos and proofs of concept, respond to RFPs and security questionnaires, review technical contracts, and ensure customer commitments align with engineering capabilities. Build reusable technical assets, support adoption, and communicate customer requirements to product and engineering teams.

Design and scale a feature flagging and A/B testing platform, including high-throughput event ingestion, warehouse-native analytics, real-time feature flag delivery, multi-database SQL support, and distributed systems infrastructure. The role involves full-stack development, architecture, performance optimization, reliability engineering, and technical product influence within a remote startup team.