We’re hiring a hands-on full-stack developer to help build and maintain a production truck dealer management platform supporting inventory, financing workflows, logistics, and internal operations. You’ll work in a TypeScript monorepo building React + TypeScript features with MUI, React Query, React Hook Form, and Zod, maintaining Express APIs and Firebase Cloud Functions, evolving shared domain models used across frontend and backend, and shipping reliable, testable improvements across core business areas.

We are seeking a Mid to Senior-level Fullstack Developer (3–5 years of experience) to not only maintain and expand our platform (Next.js frontend + Django backend) but also guide us in fully integrating AI-powered coding assistance across the full stack. The frontend is already set up for AI-assisted editing (e.g. Cursor), and we want to evolve our backend similarly. The ideal candidate will help us transition the entire development environment, so both we and the developer can leverage state-of-the-art AI coding tools. Beyond coding, you’ll act as a mentor, helping us better understand the backend’s architecture and workflows while integrating AI-driven development tools into our process. You’ll have a key role in making our stack both stable and future-ready, with AI-assisted flexibility. The Context Our frontend was recently ported to Next.js in an ad-hoc manner, leaving certain sections in need of refactoring and stabilization. We have committed to keeping our backend in Django to leverage its robust processing capabilities. You will be the point person for bridging these two environments. Key Responsibilities -Maintenance & Stability: Perform routine maintenance and optimization across the full stack. -Bug Fixing: Identify and resolve issues within the existing Next.js frontend and Django backend. -System Reliability: Provide technical support and troubleshooting during system downtime. -Feature Implementation: Build and deploy new features, ensuring seamless integration between the AI pipeline and the user interface. Required Technical Profile -3–5 years of professional fullstack experience. -Frontend: Proficiency in Next.js and React; experience cleaning up/refactoring "messy" or legacy codebases is a plus. -Backend: Strong experience with Django (Python), specifically working with complex data pipelines or API integrations. -Mindset: A pragmatic approach to coding—balancing the need for new features with the necessity of technical debt reduction.

We are seeking a Mid to Senior-level Fullstack Developer (3–5 years of experience) to not only maintain and expand our platform (Next.js frontend + Django backend) but also guide us in fully integrating AI-powered coding assistance across the full stack. The frontend is already set up for AI-assisted editing (e.g. Cursor), and we want to evolve our backend similarly. The ideal candidate will help us transition the entire development environment, so both we and the developer can leverage state-of-the-art AI coding tools. Beyond coding, you’ll act as a mentor, helping us better understand the backend’s architecture and workflows while integrating AI-driven development tools into our process. You’ll have a key role in making our stack both stable and future-ready, with AI-assisted flexibility. The Context Our frontend was recently ported to Next.js in an ad-hoc manner, leaving certain sections in need of refactoring and stabilization. We have committed to keeping our backend in Django to leverage its robust processing capabilities. You will be the point person for bridging these two environments. Key Responsibilities -Maintenance & Stability: Perform routine maintenance and optimization across the full stack. -Bug Fixing: Identify and resolve issues within the existing Next.js frontend and Django backend. -System Reliability: Provide technical support and troubleshooting during system downtime. -Feature Implementation: Build and deploy new features, ensuring seamless integration between the AI pipeline and the user interface. Required Technical Profile -3–5 years of professional fullstack experience. -Frontend: Proficiency in Next.js and React; experience cleaning up/refactoring "messy" or legacy codebases is a plus. -Backend: Strong experience with Django (Python), specifically working with complex data pipelines or API integrations. -Mindset: A pragmatic approach to coding—balancing the need for new features with the necessity of technical debt reduction.

What you will do: • Designing, developing, and deploying secure and robust authentication and authorization systems. • Building administrative tools for managing users, roles, and system configurations. • Solve challenging scaling problems to meet a growing user base and ensure the best experience and uptime. • Collaborating with product partners, UX designers, and engineers to deliver high-quality solutions. • Boldly move the networking and security industry forward along a path of simplification, performance, and flexibility. • Be a unifying force connecting people and inspiring others to do their best. You are an ideal candidate if you: • Have built rich web UIs with React (and Redux) or similar frameworks. • Know your way around web back-end technologies, like Ruby on Rails. • Can implement efficient database design in a relational database (we use Postgres). • Are passionate about career advancement. We're looking for leaders, whether that means you strive to be a strong leading individual contributor or want to grow into a tech lead role. • Experience or willingness to work on proof-of-concept spikes as well as in an agile environment (Scrum, Kanban, etc.). Bonus points for: • Hands-on experience with Identity and Access Management (IAM) solutions, authentication protocols (e.g., OAuth, SAML), and authorization frameworks. • Have working knowledge or SCIM (System for Cross-domain Identity Management). • Experience with asynchronous patterns, message queues/topics (e.g., Kafka) and search technologies (e.g., Elasticsearch).

We are seeking an elite, senior-level Full-Stack Developerto engineer a high-velocity, real-time horse racing web platform from the ground up. The core application loop revolves around a fast-paced snake draft for individual horse races, complete with an integrated, synchronized sub-second live video stream of the race. Following official track results, the platform automatically executes structured financial payouts to users using Venmo/PayPal Payout rails. The entire tech stack must be built utilizing a unified all-JavaScript environment (MERN stack) optimized to eliminate database race conditions and handle volatile real-time traffic spikes. Core Key Milestones & Project Deliverables: Milestone 1: Backend Infrastructure & User Security (15%) Set up a Node.js/Express.js application environment and establish a scalable MongoDB Atlas architecture. Implement user registration, secure JWT/bcrypt authentication, profile management, and verified phone-number registration and/or email registration. Milestone 2: Sports Data Ingestion & Automation (25%) Establish integration with a third-party commercial horse racing API (e.g., Equibase or Sportradar). Build persistent background workers (using BullMQ, Redis, or Node-Cron) to automatically ingest daily race cards, scratches, gate changes, and final official race metrics. Milestone 3: Real-Time Draft & WebRTC Video Integration (40%) Develop an interactive React.js draft dashboard utilizing Socket.io for live, synchronized state management. Implement our custom mathematical snake draft logic featuring a strict 20-second user-pick countdown timer. Build server-side automatic timeout handlers to auto-assign choices if a user disconnects or freezes. Embed an ultra-low latency HTML5 video canvas layer leveraging WebRTC (via WHIP/WHEP protocols) to ingest an RTMP stream from a media server (e.g., Ant Media or Wowza) ensuring sub-500ms video playback. Milestone 4: Venmo Payout Integration & Compliance Guardrails (20%) Seamlessly integrate the official PayPal/Venmo Payouts API to programmatically distribute money from our platform wallet directly to users' accounts and/or phone numbers. This can be worked around using a p2p format, if necessary due to compliance and regulation. Code a reliable system ledger that deducts a custom platform percentage rake prior to finalizing winner distributions. Implement an IP geo-fencing gateway (such as MaxMind GeoIP2) to block real-money contest entry from illegal jurisdictions. Technical Stack Requirements: Frontend: React.js (Next.js preferred), Tailwind CSS, Socket.io-client. Backend: Node.js, Express.js, Socket.io, Node-Cron or BullMQ.Database & Memory: MongoDB (Mongoose), Redis (for lightning-fast leaderboard and timer caching). Streaming Protocols: WebRTC, WHIP/WHEP, RTMP stream handling. Integrations: PayPal/Venmo Payouts SDK, REST/JSON Sports Data APIs, GeoIP lookup utilities. Strict Operational Code Quality Terms: 1. Repository Ownership: All codebase code and architectural modules must be pushed to our private company GitHub repository at least three times a week. Milestone releases will only be approved after clean local compilation and inspection. 2. IP Assignment: By applying for and accepting this position, you acknowledge that 100% of the developed application logic, system schemas, and code components represent a dedicated Work-for-Hire owned exclusively by the client. 3. ACID Database Transactions: You must guarantee and demonstrate via unit testing that the MongoDB schema handles marketplace swaps and concurrent drafting selections via absolute ACID Transaction Sessions to totally prevent double-spend or double-draft race conditions. To Apply, Please Answer the Following 3 Screening Questions: 1. How do you plan to structure the server environment and React architecture to keep a 30-second live countdown timer perfectly synced down to the millisecond for 4 or more different players concurrently browsing via WebSockets? 2. Please share a summary or a live link of a project you built from scratch that handled live WebRTC ultra-low-latency video delivery or complex stream handshakes. 3. What is your specific experience with financial ledger architectures? Explain how you intend to protect the MongoDB operations against multi-user transactional conflicts.

We are looking for an exceptional Full-Stack Engineer who enjoys solving challenging technical problems across the entire technology stack—from modern user interfaces to scalable backend services, cloud infrastructure, and AI-assisted software development. This engagement begins as a contract position with strong potential to become a long-term member of our engineering team. What You’ll Be Building This is not a typical CRUD application. You will be working on a technically sophisticated SaaS platform involving: • AI-powered healthcare analytics • Large-scale clinical and pharmacy datasets • Complex SQL and data processing pipelines • Interactive analytics dashboards • Modern React-based user interfaces • High-performance backend APIs • Enterprise system integrations • Cloud-native infrastructure • AI-assisted software engineering workflows If you enjoy designing scalable systems, solving complex technical challenges, and building products that have real-world impact, we’d love to hear from you. Responsibilities You will work closely with our founders and engineering team to: • Design and develop new product features from frontend through backend. • Build intuitive, responsive, and high-performance web applications. • Design scalable backend services and REST/GraphQL APIs. • Design and optimize relational databases and complex SQL queries. • Improve application performance, scalability, and reliability. • Build integrations with external healthcare systems and third-party services. • Participate in architectural and technology decisions. • Debug and resolve complex production issues. • Write clean, maintainable, well-tested production code. • Contribute to engineering best practices and continuous improvement. Required Technical Skills Frontend • React • TypeScript • Modern JavaScript • Responsive web development • Component-based architecture • State management Backend • Expert-level Python • Node.js • FastAPI, Django, or Flask • REST APIs • GraphQL • Authentication & Authorization • Asynchronous programming Databases Strong experience with relational databases including: • PostgreSQL • MySQL • SQL query optimization • Indexing • Performance tuning • Data modeling • Database design Cloud & Infrastructure • Docker • Kubernetes • AWS • CI/CD pipelines • Git Modern AI-Assisted Development We strongly prefer engineers who actively leverage modern AI-assisted software development tools to improve productivity while maintaining exceptional engineering quality. We view AI as a productivity multiplier—not a replacement for software engineering expertise. The ideal candidate understands how to use AI effectively while applying sound engineering judgment, architecture, debugging skills, and rigorous code review. What We’re Looking For We’re looking for engineers who: • Think like software architects—not just programmers. • Can independently solve complex technical problems. • Take ownership of their work. • Write elegant, maintainable, and well-tested code. • Have excellent debugging and troubleshooting skills. • Make thoughtful architectural decisions. • Learn quickly and continuously improve. • Communicate clearly and professionally. • Enjoy working in a fast-moving startup environment. We value engineering excellence, problem-solving ability, and sound technical judgment far more than years of experience alone. Nice to Have Experience with one or more of the following is a plus: • Large-scale analytics platforms • Event-driven architectures • Redis • Elasticsearch • Message queues • Data engineering • Performance optimization • DevOps Required Application Questions To help us identify the strongest candidates, please answer the following questions in your proposal. 1. Describe the most technically challenging application you have built. Please include: • Overall system architecture • Your specific role • Technologies used • The biggest technical challenge • How you solved it • What you would do differently today 2. Which area of software engineering do you enjoy the most, and why? Examples: • System architecture • Backend development • Frontend development • Databases • Performance optimization • Infrastructure • Debugging • AI applications

DO NOT SEND AN AI GENERATED PROPOSAL. READ THROUGH THIS POST AND GIVE US YOUR HUMAN RESPONSE. Location: Remote Team size: Small (you’ll know everyone’s name) Stack: Java 21 / Guice / Gradle backend + React 19 / TanStack / MUI frontend **To apply** 1. Give us a few sentences for why you're a fit for the description below. 2. Include a Github/Gitlab/Gitea link to a recent PR you’re proud of (any language) 3. 5–10 minute Loom of you using Claude Code on a real task. **About the role** QAction is a large-scale Java enterprise document, records, and workflow platform — multi-project Gradle build, ~15 modules, customer-specific deployments (USDA, Ditco, Ascension, Mayo). The backend is being modernized behind an OpenAPI v2 surface (oasv2); the frontend is being rebuilt off GWT onto React 19 + TanStack Router/Query/Start with MUI v7. We need a developer who’s equally comfortable extending a v2 endpoint in a Guice-wired Java service as they are wiring up a TanStack Query call behind a Lexical editor or a virtualized data table — and who treats Claude Code as a peer on the keyboard, not a novelty. You’ll work directly with the product lead. No layers, no JIRA theater. Ship, review, iterate. **What you’ll do** Own vertical slices end-to-end: OpenAPI spec → Manager/ManagerImpl + EndpointImpl in QAction Java → React 19 / TanStack Query UI → JUnit + Playwright coverage. Extend the QAction Java backend: Guice (constructor injection only), Hazelcast-aware code paths, customer-deployment-aware module wiring, JUnit under oasv2. Build Modern UI features in the React 19 stack: TanStack Router/Query/Start, MUI v7 + Emotion, React Hook Form + Zod, Lexical, dnd-kit, OIDC auth (oidc-client-ts), TypeScript with the wrapper-component discipline already in place (Button, Icon, LabeledObject, ScrollShadows, etc. — never raw MUI in features). Move features off GWT onto the React 19 stack one slice at a time, without breaking the legacy app. Pair with Claude Code daily — write prompts that ship code, review agent diffs critically, and improve our skills/agents library when the workflow has friction. Keep integration tests honest: real DB + Solr + Keycloak at the seam, not mocks. Tech direction you’ll be living in **Backend** Java 21, Gradle multi-project (build single modules — ./gradlew QAction:build — never clean build) Guice DI, constructor injection, Manager/ManagerImpl naming (we don’t use “Service”) OpenAPI-first v2 endpoints in oasv2, canonical error model, paginated response classes as standalone beans in oasv2.beans Hazelcast clustering, Solr search, Postgres/MSSQL, Keycloak/OIDC FileNet integration, document import/migration tooling, RMT/remote services **Frontend** React 19 + TypeScript, Vite 7, TanStack Router + Query + Start + Table MUI v7 + Emotion, MUI X Date Pickers + Tree View Lexical (rich text), @dnd-kit + Atlaskit pragmatic-drag-and-drop, react-virtualized, react-pdf React Hook Form + Zod, oidc-client-ts + react-oidc-context, notistack, pino File naming kebab-case, @/ path imports, theme-first styling, wrapper components over raw MUI Adjacent surfaces in scopes over time **What we’re looking for** 8+ years shipping production app code across backend and frontend. You’ve owned services and UIs, not just one or the other. Java fluency — Guice or Spring DI, REST/OpenAPI design, JUnit. Bonus if you’ve worked in a 1M+ LOC enterprise Java codebase with customer-specific module deployments and didn’t flinch. Modern React fluency — React 18/19, TypeScript, TanStack Query (or React Query), a real opinion about effect dependency graphs, comfort with virtualized tables and rich-text editors. OpenAPI-first thinking. Specs are the source of truth, not documentation written after the fact. Claude Code power user. You write prompts that delegate well, you know when to use a subagent vs. inline, you’ve built or extended skills/hooks/MCP integrations. You can show us a recent session where Claude shipped something non-trivial under your direction. Small-team temperament. You’re allergic to ceremony. You read code before asking. You raise a small PR when it’s ready. **Nice to have** GWT (you won’t write new GWT, but you’ll need to read and migrate it). Workflow / BPMN, records management, e-signature, or ECM domain experience. Hazelcast, Solr, Keycloak operational familiarity. Lexical or another modern rich-text editor. Playwright (you’ll inherit a calibrated suite — we want you to improve it, not rewrite it). Docker compose stack bring-up across Postgres, MSSQL, Solr, Keycloak. Python services or Helm/Kubernetes deployment experience. **How we work** Small PRs. Every change ships through review. If it’s getting big, split it. Test-driven design. Tests come with the code, not after. JUnit on the Java side, Vitest + Playwright on the React side. Daily standups. 15 minutes, async-friendly, but we show up. Memory-backed Claude Code sessions — agents learn the codebase with you, not against you.

We are seeking a Full-Stack Mobile App Developer to create a cross-platform mobile app (iOS & Android) that connects to our existing commercial real estate platform. The app should enhance user engagement and provide a seamless experience for property seekers. The ideal candidate will have experience in both front-end and back-end development, ensuring a smooth integration with our existing system.

What this hire is. A senior full-stack engineer to take a fully specified, largely pre-built multi-tenant B2B SaaS application from documented spec to a hardened, deployed production system. The work is integration, security, third-party wiring, and deployment — not greenfield design, not product decisions, not building core feature logic from scratch. Architectural judgment and precision against a spec matter far more than raw output speed.

Overview We are looking for an experienced contract Product Engineer / Full-Stack Engineer to help maintain, stabilize, and enhance an existing production React + Ruby on Rails application. This role is hands-on and collaborative, working closely with our lead engineer to deliver features, fix bugs, and improve overall system reliability and architecture. This is a 6-month contract with consistent weekly hours and the potential for extension. What You’ll Do - Maintain and enhance a live, production React / Rails application - Work closely with the current lead engineer on implementation and planning - Implement new features from defined requirements - Debug and resolve production issues - Improve code quality, performance, and architecture over time - Assist with light coordination and technical planning as needed Required Technical Skills - Frontend - Strong experience with React (JSX syntax) - API integration using Fetch - Familiarity with component libraries such as Bootstrap, React-Bootstrap, or jQuery - Understanding of modern frontend tooling (Webpack, Babel) Backend - Ruby on Rails (6.1.x) experience - Solid understanding of the MVC pattern - Experience with ActiveRecord and PostgreSQL - Building and consuming RESTful APIs - Background job processing - Working with model relationships, migrations, and service objects DevOps / Infrastructure - Git and Git branching strategies - Basic Linux server familiarity (CLI usage) Nice-to-Have Skills - Third-party API integrations - Authentication experience (Devise, OAuth, SAML) - React performance optimization - Rails performance tuning and query optimization - Experience working in large or legacy codebases - Power BI or reporting tools - Interest in mentoring or pairing during ramp-up How You Work - Able to onboard quickly into an existing codebase - Comfortable working independently with minimal oversight - Strong communicator (clear updates, async collaboration, clean Git commits) - Can work directly with business stakeholders to clarify requirements - Good documentation habits Experience Requirements - 3–5+ years of full-stack development experience - 2+ years hands-on React experience - 2+ years hands-on Ruby on Rails experience - Prior contract or consulting experience preferred - Proven experience maintaining production systems Education - Bachelor’s degree in Computer Science or related field (optional) - Equivalent professional experience is fully acceptable - Bootcamp graduates welcome if you have real-world production experience Contract Details - Contract length: 6 months - Location: Remote - Hours: ~40 hours/week (open to discussion) - Time zone: Must overlap with Pacific Time