Top Tech Jobs & Startup Jobs in Los Angeles, CA

Design, build, and maintain backend services and APIs using Ruby on Rails. Ensure performance, scalability, reliability, and test coverage. Collaborate with Product, Frontend, Data Engineering, and QA to deliver production-quality code for web and mobile platforms.

Build and operate production custody systems: signing service, key management, chain integrations, and transaction pipelines. Own end-to-end subsystems, integrate new chains, collaborate with cryptography on threshold signing and key recovery, write post-mortems, and produce clear async design docs and PRs.

Lead and scale the engineering organization for a regulated digital-asset custody platform. Own hiring, org design, engineering operations (on-call, incidents, release hygiene), delivery against roadmaps, audit and regulator readiness (SOC 2, SAMA, ISO 27001), and cross-functional alignment. Amplify an existing small, specialized team to meet regulatory and institutional requirements while preserving culture and retention.

Lead design, development, and deployment of LLM-powered solutions and autonomous procurement agents on the GEP AI platform. Advise stakeholders, run workshops, configure platform ontologies and data pipelines, optimize models for procurement tasks, and oversee cross-functional implementation to drive automation and improved procurement decision-making.

Senior iOS Developer to design and build secure, high-performance iOS apps using Swift (SwiftUI/UIKit). Implement webview integrations (WKWebView/ASWeb), ASWebAuthenticationSession for OAuth/SSO, JavaScript interop, and native features (camera, push, maps). Ensure responsive web content handling and secure data management. Remote role but must be Bangalore-based with weekly (~1 hour) client office visit to collect a device.

Lead end-to-end client AI transformation engagements: discover and frame executive problems, design and build production-credible PoAs (data pipelines, integrations, LLM/RAG apps) within 2–3 weeks, present to executives, hand off to delivery, mentor junior FDEs, and convert PoAs into full engagements.

Lead complex product design initiatives across multiple teams and workflows. Define experience direction, create prototypes and high-fidelity designs, shape AI-enabled interfaces, strengthen design systems and accessibility, and mentor designers. Partner with product, engineering, research, data, and customer-facing teams to translate customer needs and business goals into coherent, high-quality shipped experiences in a remote environment.

Lead project finance and financial architecture for a distributed AI infrastructure platform. Build integrated and site-level financial models, structure SPVs and capital arrangements, evaluate real-estate and equipment financing options, analyze project returns and deployment economics, and support investor fundraising. Establish finance processes, controls, reporting, and decision tools while coordinating legal, tax, accounting, infrastructure, real-estate, financing, and investment partners.

Support design of user-centered interfaces across e-commerce, internal SaaS (WMS/OMS), and AI agent interactions. Create wireframes, prototypes, and high-fidelity mockups; conduct usability research; maintain a design system; apply WCAG accessibility practices; collaborate with product managers and frontend engineers for feasible, consistent designs.

Remote Graphic Design intern producing social media creatives, banners, presentations, website visuals, illustrations, and infographics. Ensure brand consistency, iterate on feedback, organize design assets, and collaborate with marketing, product, and content teams. Three-month unpaid internship with mentorship and potential paid/full-time conversion.

Perform load, stress, and endurance testing across e-commerce storefronts, internal SaaS tools, and AI agent services. Design test strategies, execute tests with tools like JMeter/Gatling, analyze observability metrics, identify bottlenecks in Node.js/NestJS, PostgreSQL, and Redis, and integrate performance tests into CI/CD while collaborating with SRE and backend teams.

Support social media presence by creating, editing, scheduling posts; engaging followers; tracking analytics; helping run campaigns; maintaining content calendars and healthcare-relevant, compliant content.

Build and maintain a Canadian Records of Processing Activities program for a global retailer. Lead discovery sessions across 10–12 business units, document systems and data practices, adapt global ROPA templates, track deliverables across 24+ stakeholders, and communicate independently with senior executives. The role requires hands-on ROPA experience, privacy or GRC expertise, strong organization, stakeholder management, and familiarity with North American privacy regulations.

Lead engineering team to develop AIPerf, an open-source benchmarking tool for LLM inference performance, while overseeing technical direction and mentoring engineers.

Own and scale client-facing data transformation pipelines for financial and operational data. Build reliable analytical models, data integrity tests, and integrations across diverse sources. Partner with Customer Success and Engineering to troubleshoot data issues, optimize critical pipelines, establish engineering standards, and improve developer experience. Use dbt, SQL, Python, BigQuery, and AI-enabled workflows to deliver performant, well-documented FP&A data products while mentoring teammates and contributing to hiring and onboarding.