Senior Software Engineer (San Mateo)

We're building Onda — a mobile app for experienced surfers to track their sessions, get real-time surf forecasts, connect with their crew, interact & contribute to hyper local communities and receive personalized AI-powered recommendations based on historical data and live conditions. We launched our MVP in July and are growing fast. We’re looking for a Head of Engineering to own our architecture and build something exceptional — with the potential to expand to a parity web platform and robust social experience built on strong marketing + analytics infrastructure. You’ll Lead: - Our cross-platform Kotlin MP mobile app (Android + iOS) - A Python-based cloud-native system built on Google Cloud Platform (GCP) - Event-driven services using Firebase + Cloud Functions - A modular Retrieval-Augmented Generation (RAG) system designed to provide context-aware surf forecasts and recommendations. It combines custom logic orchestration (via LangGraph), cloud-based vector search (Vertex AI), and real-time FastAPI endpoints for inference. - Backend data pipelines that process and organize user and surf data so we can deliver custom forecasts, recommendations, and analytics for each user. - Wearables integration - Technical strategy for a future web platform, social features and regional expansion - Marketing tech stack integration: attribution, analytics, CRM tools for engagement You Might Be a Fit If You: - Surf or have a strong affinity for the ocean - Have led or architected 0→1 mobile and/or ML-based products - Know how to build event-driven, analytics-ready systems and own data infrastructure - Have experience supporting growth teams and marketing integrations - Have startup or founding engineer experience - Are excited about delivering exceptional user experiences - Enjoy building tight feedback loops between data, ML, product, design and marketing - Take ownership and get things done – even when the specs are vague and the timelines are unclear Why Join? - You will receive significant equity compensation. This is an equity-only position as we are a pre-seed startup and you’ll be getting in at the ground floor. - Real ownership over complete tech strategy - Space to experiment and shape the entire stack - Build something surfers will love - Be part of launch parties and events!

XP Health, Inc. has an opening for this position in San Carlos, California. To apply, email resume and cover letter to admin@xphealth.co and reference job title. EOE. Principals only. Senior Full Stack Engineer (Wage Offer: $210,000/yr): Develop software solutions to application problems for AI-powered optometry platform, to benefit and deliver vision health benefits seamlessly to customers. Design and build backend software. Design, test, and implement new user-facing product features. Build tools to deploy, monitor, and monitor XP Health’s applications. Develop GraphQL Application Programming Interfaces (APIs) and optimize the Django backend to support both Apple’s iOS and Android frontends. Conduct code reviews and review automated scripts. Keep up-to-date on latest web technologies and infrastructure designs. Evaluate workflow to ensure user data security compliance. Improve event metrics to help operations and marketing analyze lab workloads, detect missing records, and assess current marketing strategies. Telecommuting permitted 2 days per week. REQUIREMENTS: Master’s degree or foreign equivalent in Computer Science, Computer Engineering, or a related technical field. 3 years of experience as a Software Engineer, Software Developer, or a related occupation. SKILLS: Must have: 1. Experience building secure, production-level, backend infrastructure. 2. Experience working with AWS services, including at least one of the following: S3, ElasticBeanstalk, or EC2. 3. Experience in web technologies including at least three of the following: ES6, React, Node, Redux, jQuery, Webpack, Babel, or SCSS. 4. Experience working with systems design and front-end engineering methods (responsive design, cross-device compatibility, or single page applications). 5. Experience with computer networks and the application of operating system functionality in programming tasks (with knowledge of concurrency, multiprocessing, multithreading, race conditions, and synchronization primitives). 6. Experience with algorithms and data structures. 7. Experience building manual and automated scripting. 8. Experience with REST and GraphQL APIs. 9. Experience working with database or data systems, including data query (SQL) and query optimization, data models, data storage, and failure recovery.

Maplebear Inc. D/B/A Instacart in San Francisco, CA seeks Senior Data Analyst (Multiple Openings). Responsibilities: Responsible for developing highly scalable database architectures and innovative analytical tools to enable data-driven decision making across the organization. Duties include: designing and developing sophisticated database systems and self-service analytical tools for cross-functional teams; performing ongoing testing and analysis to identify key questions, problems, KPIs, and other metrics to optimize performance and analytical outcomes; defining and implementing maintenance procedures for large-scale data pipelines and underlying software architectures; developing and documenting systems design protocols to enhance data security, trouble-shoot errors, and prompt system upgrades; and other duties as assigned. Employee may be stationed anywhere in the continental United States but will report directly to Instacart headquarters in San Francisco, CA. Education: Master’s degree in Information Systems, Data Analytics, or related field (or foreign equivalent). Requirements: 2 years of experience in the job offered or related. Other special requirements include: 2 years of experience working with SQL, R, Python, or similar programming languages; 2 years of experience working with Tableau, Looker, or similar data visualization tools; 2 years of experience performing data warehousing and modeling, A/B tests, and applying analytical models to large data sets; and 2 years of experience building data pipelines in complex data environments. Rate of Pay: $152k - $175k. Qualified applicants must mail resumes to Instacart, Attn: K. Kim, Global Mobility, 50 Beale Street, Suite 600, San Francisco, CA 94105 quoting job #SDAN33.

Maplebear Inc. D/B/A Instacart in San Francisco, CA seeks Senior Software Engineer, Data, (Multiple Openings). Responsibilities: Responsible for designing, building, and implementing software solutions to scale and improve the Instacart platform and related technologies with an emphasis on the development and optimization of robust data pipelines and infrastructure. Duties include: building and maintaining robust data pipelines and implementing complex technical solutions to optimize performance, scalability, and reliability; analyzing and optimizing expensive SQL queries; developing data-driven solutions to support analytical reporting and business intelligence; executing ongoing testing and analysis of current systems, including independent performance analysis, diagnosis, and troubleshooting; determining design solutions to problematic programming; and other duties as assigned. Employee may be stationed anywhere in the continental United States but will report directly to Instacart headquarters in San Francisco, CA. Education: Master’s degree in Computer Science, Management Information Systems, Information Technology, or related field (or foreign equivalent). Requirements: 2 years of experience in the job offered or related. Other special requirements include: 2 years of experience working with Java, Ruby, Python, or similar programming languages; 2 years of experience working with MySQL, PostgreSQL, NoSQL, or similar data management systems; 2 years of experience building and deploying high quality data pipelines to production needed for machine learning models; 2 years of experience building tooling and infrastructure to support machine learning lifecycles; 2 years of experience designing, building, and maintaining robust data pipelines to extract, transform, and load (ETL) data from various sources into data warehouses or data lakes; and 2 years of experience optimizing data pipelines for performance, scalability, and reliability. Rate of Pay: $180k - $250k. Qualified applicants must mail resumes to Instacart, Attn: K. Kim, Global Mobility, 50 Beale Street, Suite 600, San Francisco, CA 94105 quoting job #SRED33.

This is a mission-driven project, personally funded, and we are moving thoughtfully and carefully — one working milestone at a time. We are building AI custom sites for Non-profit companies. As a result, initially, we are on a budget until we get proof of concept so grant money can be approved for longer term. We have 40 years in AI experience and programming in house. We are a large value driven VAR working with over 1000 clients in the US. Who I'm Looking For: Someone with ERP Experience with Order Entry, Quote Forms, Purchase Order, and Inventory Transactions. Programming in Visual Studio, using Blazor Forms, C#, Radzen, and SQL Stored Procedures. Full Stack Developer. This is because much of our platform will be looking at accounting data for AI to analyze. Being in business for 45 years we have much of the code written but need to expand and add new features. We currently are using components from Radzen. Ability to work with Visual Studio, Visual Code. We have 50 percent of the AI Chat Bot written. Mostly this is about forming SQL tables with memories, chat history, and other data. You should have some knowledge with Agents. We already have the connections on our chatbot to a local LLM which we are training using vectoring and advanced learning. We have API connections to Open Chat GPT. We are working on connections to Watson, and Grok. You need to know how to work with MS SQL Express and create tables. You should feel comfortable working with API, even if in a teaching environment. Most of the technology is changing so your ability to learn and grasp new ideas is the main feature we need, and of course be a good logical thinking person who can understand how objects work and put them together in working logical format Are you located in Massachusetts (Greater Boston, MetroWest, Worcester County, or similar). You’re comfortable sitting initially in our offices to work alongside other developers. Most employees are working local not remote. Working remote is possible with scrutiny. Some of the meetings take place in Norwood, MA, but mostly in Newton, MA In addition you will help with: Azure cloud services (VM setup, storage) Basic server/web app configuration (Linux or Windows Server) OpenAI API (chatbots, calling models) Building a Blazor Form with secure SQL Database, operating with Open Chat AI. You’re willing to learn on the job if needed — but you must already know how to get a basic OpenAI connection working. The First Project Milestone: Set up a secure Azure server Create a simple webpage. Upload a PDF (store it for future AI use) Create simple memory notes (simulated database entries) Connect the site to OpenAI (for basic chatbot testing) Authenticate with Open AI in Linux, close all ports, setup server and AI Send a prompt to Open AI Receive and Display the Answer from Open AI Write a Pytorch add-on to add pdf files to AI Model Add a text box for adding to memories of AI Model Create the database (MDB) or other, for storing this data, secure and encrypted. Test functionality and confirm uploads and chat work Target: About 20–40 hours total. (Work over a few days or spread out over a week — flexible.) If it’s a good fit, we may add: Login system Memory storage tied to user accounts Expanded AI learning features We currently have a version available and in use. You will be working with existing code and on a team with others. Ideal For: People looking for real-world AI project experience Anyone who believes in using technology to make a difference A short intro (who you are, where you live) Any relevant experience (even school projects are fine this technology is new) Your availability (weekdays/weekends) Your hourly rate expectation Important: Please identify your location.

QA Tester II ** To Apply: Please Email me your Resume ** Having Mobile Testing is a plus Salary Range: $25.00 To 35.00 Hourly Benefits: The company offers medical, dental, vision, short and long-term disability, life insurance, the ability to participate in 401K and paid time off as applicable. Summary of Position: The QA Tester II is responsible for testing multiple projects in a fast-paced environment. The QA Tester II will be responsible for testing in both lab and production environments from a customer perspective. Essential Functions: Ability to create test plans based on business and functional requirements Ability to create test cases to client specifications Manual and Automated test case execution Creation, management, and triage of defects Basic understanding of backend infrastructure and design Ability to troubleshoot issues experienced during testing Provide daily and weekly status reporting Understanding of iPhone, Android, and Windows mobile devices Comprehension and understanding of requirements for testing Ability to have strong attention to detail to be able to accomplish a wide variety of tasks Follow written and verbal instructions from the client and leads Understanding of JIRA for test case management, creation, and execution Understanding of Quality Center for test case management, creation, and execution Follow established client processes and procedures for reporting and testing Archive all test documentation as directed Night and weekend work as required by the client Ability to work internationally for international roaming testing Ability to work remotely for domestic roaming testing Competencies: Ensures Accountability Tech Savvy Communicates Effectively Values Differences Customer Focus Resourcefulness Drives Results Plans and Prioritizes Decision Quality Self-Development Work Environment: There may be times that the QA Tester will be onsite 100%, due to project requirements. This job operates in a professional office environment. This role routinely uses standard office equipment such as computers, phones, photocopiers, filing cabinets, and fax machines. Physical Demands: The physical demands described here are representative of those that must be met by an employee to successfully perform the essential functions of this job. While performing the duties of this job, the employee in this position frequently communicates with other co-workers/clients who have inquiries about the various projects and other needs. Must be able to exchange accurate information in these situations. The employee must be able to remain in a stationary position 75% of the time. The employee in this position needs to occasionally move about inside the office to access file cabinets, office machinery, etc. Constantly operate a computer and office machinery such as a calculator, keyboard, copy machine, and printer. Frequently moves boxes with equipment weighing up to 60lbs across the building and to other offsite buildings for various project needs. Required Education and Experience: High School Diploma or general equivalent 3-5 years of experience Qualifications: Bachelor’s Degree preferred Ability to analyze and solve complex problems quickly and creatively Experience with client-server systems and understanding the types of issues that may arise Ability to learn quickly in a dynamic environment Excellent oral, written, and interpersonal communication skills Self-motivated and team player Ability to handle multiple tasks and priorities Ability to collaborate with team members and client to meet project deadlines and milestones Understanding of common Systems Development Lifecycle (SDLC) methodologies, including Waterfall and Agile/SCRUM Adapt easily to shifting priorities, process changes, and/or schedule changes Understanding of SOAP UI for test execution and SIM activation AAP/EEO Statement: 3MD Inc. is an equal opportunity employer and does not discriminate based on gender, sex, age, race and color, religion, marital status, national origin, disability, sexual orientation, gender identity or expression, veteran status, or any other category that is protected by applicable law. Other Duties: Please note this job description is not designed to cover or contain a comprehensive listing of activities, duties, or responsibilities that are required of the employee for this job. Duties, responsibilities, and activities may change at any time with or without notice.