- Hourly: $50.00 - $85.00
- Expert
- Est. time: More than 6 months, Hours to be determined
Technical Skills: Languages: PHP, Python, JavaScript, SQL Databases & Tools: MySQL, PostgreSQL, MongoDB DevOps & Infrastructure: AWS, Docker, Kubernetes, Terraform, CloudFormation Version Control & CI/CD: Git, GitHub Job Summary: We are seeking an experienced Senior Software Developer to join our team. In this role, you will design and develop robust integrations with CRM platforms, architect and optimize database solutions, and contribute to our cloud infrastructure as code initiatives. You will work with modern technologies including PHP, Python, SQL, and AWS while managing containerized applications, implementing CI/CD pipelines, and interfacing with third party development teams. This is a full-stack role bridging backend development with DevOps practices. Key Responsibilities: - Design, develop, and maintain CRM integrations with leading platforms such as Salesforce, HubSpot, and Actionstep - Architect and optimize database solutions, including schema design, indexing strategies, performance tuning, and backup strategies - Design and implement Infrastructure as Code (IaC) with AWS - Develop, deploy, and manage Docker containerized applications using Docker Compose and container orchestration tools - Write clean, maintainable code in Javascript, PHP and Python - Develop and execute complex SQL queries for data extraction, transformation, reporting, and ETL pipeline development - Configure and optimize AWS services including EC2, RDS, S3, VPC, security groups, and IAM policies - Implement and maintain CI/CD pipelines for automated testing, building, and deployment - Establish monitoring, logging, and alerting systems for production environments - Conduct code reviews and provide constructive feedback to team members - Troubleshoot and resolve production issues with minimal downtime, implementing reliability improvements Required Qualifications: - 7+ years of professional software development experience - Advanced proficiency in PHP, Javascript, & Python - Expert-level SQL knowledge with experience in relational database design, optimization, and data warehouse architecture - Proven experience developing CRM integrations with REST APIs. - Experience with version control systems (Git) and CI/CD pipelines - Hands-on experience with AWS services including EC2, RDS, S3, VPC, security groups, and IAM - Proficiency with Docker and container orchestration (Docker Compose, Kubernetes experience preferred) - Experience with Infrastructure as Code tools such as Terraform or CloudFormation - Knowledge of monitoring, logging, and alerting solutions (e.g., CloudWatch, ELK, Prometheus) - Preferred Qualifications - Experience with Actionstep - Experience designing and maintaining data warehouse solutions - Kubernetes experience for container orchestration at scale - Experience with serverless architectures (AWS Lambda) - Contribution to open-source projects - Bachelor's degree in Computer Science, Software Engineering, or related field
- Hourly: $70.00 - $95.00
- Expert
- Est. time: More than 6 months, 30+ hrs/week
We're looking for a senior full-stack engineer to take on hands-on work across our web platform, architecting features, building APIs, and delivering polished, performant UI. Looking for someone that can do full stack but is heavy UI developmenet leaning. You'll be doing: Building full-stack features end-to-end (dashboards, booking, payments, admin tools, etc.) Modernizing existing code and reducing technical debt Node.js services, REST APIs. Performance optimization across front-end and backend CI/CD, automated testing, container-based deploys You should have: 8+ years building production web apps Strong TypeScript across a modern framework (React) Solid Node.js / Express backend experience AWS or GCP, Docker, and CI/CD experience Comfort with PostgreSQL Automated testing (Jest, Vitest, or similar) Bonus: AdonisJS, Golang
- Fixed price
- Expert
- Est. budget: $2,000.00
I have a Home Staging, Interior Design and Interior Decoration company based in Beverly Hills. Any experience working with this type of service is a real plus! Summary I am looking for an experienced freelance contractor to complete a one-time optimization project for my WordPress website. I need someone who is highly skilled in modern technical SEO, AI search optimization, AEO, GEO, schema markup, WordPress performance, and local service-business SEO. This is not just a basic keyword or meta description project. I need someone who can review the entire backend structure of my website and optimize it for Google, Google AI Overviews, ChatGPT-style search, Perplexity-style answer engines, and other emerging search platforms. The ideal contractor should understand both traditional SEO and newer AI-driven search visibility strategies, including how to structure a website so search engines and AI systems clearly understand the business, services, location, authority, and content. Project Goals The goal is to make my WordPress website technically strong, easily crawlable, fast, well-structured, and optimized for modern search engines and AI answer engines. This project should include both an audit and implementation of approved fixes. Scope of Work 1. Technical SEO Audit Review the website for technical SEO issues, including: Crawlability and indexability XML sitemap setup Robots.txt Canonical tags Redirects and broken links Duplicate content issues URL structure Internal linking Heading structure Image optimization Mobile usability Core Web Vitals Page speed WordPress plugin conflicts or SEO setup issues Google Search Console issues, if access is provided 2. WordPress SEO Optimization Optimize the backend of the WordPress website, including: SEO plugin configuration, such as Yoast, Rank Math, or similar Metadata structure Page titles Meta descriptions Permalink structure Image alt text strategy Category/tag cleanup if needed Sitemap submission guidance Indexing settings Schema plugin or custom schema implementation 3. AEO / Answer Engine Optimization Improve the website for answer-based search results, including: Clear question-and-answer content structure FAQ recommendations and/or implementation Service-page content structure for direct answers Featured-snippet-friendly formatting Conversational search optimization Better semantic structure across important pages 4. GEO / Generative Engine Optimization Optimize the website for AI-generated search results and AI discovery, including: Entity clarity for the business Service, location, and brand signals Structured data/schema improvements E-E-A-T signals Internal linking that reinforces topical authority Recommendations for improving visibility in AI-generated answers Content gaps that may prevent the business from being cited or understood by AI search tools 5. Local SEO Foundation Because this is a service-based business, I also need review and optimization for local SEO signals, including: Location relevance Service-area clarity NAP consistency recommendations Local business schema Google Business Profile recommendations, if applicable Location/service page recommendations 6. Final Deliverables At the end of the project, I would like: A summary of issues found A list of completed fixes A prioritized list of recommended next steps Documentation of any plugins, schema, redirects, or backend changes made Before/after notes for major improvements Confirmation that the website is properly crawlable and indexable Ideal Contractor You should have proven experience with: WordPress technical SEO Google Search Console Google Analytics Schema markup / structured data Core Web Vitals Page speed optimization Local SEO AEO / answer engine optimization GEO / generative engine optimization AI search visibility SEO tools such as Screaming Frog, Ahrefs, Semrush, Sitebulb, Google PageSpeed Insights, or similar
- Fixed price
- Intermediate
- Est. budget: $2,700.00
I need a simple mobile app MVP built and published to iOS and Android. The app is a basic platform where users can sign up/login. One type of user creates an account, uploads photo (s) of the item being shipped and completes the purchase. Another type of user is the driver who picks up the orders. The driver will need back end access to view the route, order, order status, email, etc ( whatever is needed). Plain and simple. The goal is to keep version 1 simple and scalable. The app must be built using Flutter (single codebase for iOS and Android) and use Firebase for the backend (no custom backend). It should include basic features like user authentication, a dashboard, ability to post and browse items, accept items, and a simple profile page. Stripe or Square to process homeowner payments. Calendar or built-in booking to let homeowners request services. I also need help submitting the app to the Apple Itunes and Google Play. I’m looking for a developer who has experience with Flutter + Firebase and has published apps before.
- Hourly: $60.00 - $90.00
- Intermediate
- Est. time: More than 6 months, 30+ hrs/week
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.
- Hourly
- Expert
- Est. time: 3 to 6 months, 30+ hrs/week
We're looking for a senior Flutter engineer to help a gamified social-emotional learning app for kids on tablet. You bring deep expertise in Flutter and Dart, including custom animations, state management, and building delightful, performant interfaces that hold the attention of young users. Experience shipping polished consumer or education apps to the App Store is essential, and a background in accessibility and integrating with backend services (REST APIs, Supabase, or similar) is a strong plus. Ideally you've worked on products for children and understand the unique design, privacy, and engagement considerations that come with building for that audience. Above all, you care about craft and want to help create something genuinely good for kids and families.
- Fixed price
- Expert
- Est. budget: $2,000.00
Peachtree Care Health Services (PCHS) is seeking an experienced mobile app developer to update an existing iOS and Android application currently published in the Apple App Store and Google Play Store. Scope: Update existing app screens and workflows Improve UI/UX Fix bugs and compatibility issues Publish updates to Apple App Store and Google Play Review backend/API integrations Preferred Skills: React Native, Flutter, Swift, Kotlin, or existing app framework Experience with healthcare apps App Store and Google Play deployment experience Atlanta-based developer preferred Project Type: Freelance / Contract Potential for ongoing maintenance work Please provide: Portfolio links Similar apps you have worked on Hourly rate or project estimate Preference: Atlanta-area candidates
- Hourly
- Expert
- Est. time: 1 to 3 months, 30+ hrs/week
Principal Full-Stack Engineer (React Native • Node.js • AWS • AI Infrastructure) Mission Own the entire engineering stack and take FitCheck from its current state to a stable, production-ready application. You will architect, build, integrate, deploy, and lead all technical execution across mobile, backend, infrastructure, and AI services. Required Skills * React Native (Expo) * TypeScript * Node.js (NestJS) * PostgreSQL / Aurora * Kafka * Redis * REST APIs * WebSockets * AWS * EKS * ECS * EC2 * S3 * CloudFront * IAM * CloudWatch * Kubernetes * Docker * GitHub Actions CI/CD * Cloudflare * Firebase * GPU deployment on AWS * PyTorch model deployment * AI inference APIs * Authentication * Performance optimization * Security * Monitoring * Production deployments Responsibilities * Own the entire codebase. * Lead architecture decisions. * Build frontend and backend features. * Design and implement APIs. * Deploy and maintain AWS infrastructure. * Build and maintain CI/CD pipelines. * Deploy and manage GPU inference servers. * Optimize performance and scalability. * Review all code. * Fix production issues. * Ship new releases. * Coordinate any additional contractors if needed. * Take full ownership of technical delivery. Requirements * 10+ years software engineering. * Led production applications from development through launch. * Expert in React Native and Node.js. * Expert in AWS. * Experience deploying AI workloads on GPUs. * Experience scaling applications to hundreds of thousands of users. * Strong architectural and DevOps experience. * Excellent communication and ownership. Success Criteria Within the first 90 days: * Complete integration of frontend and backend. * Production-ready CI/CD. * Stable AWS infrastructure. * Reliable AI inference pipeline. * End-to-end testing. * Production deployment. * Documentation. * Clear engineering roadmap.
- Hourly: $50.00 - $80.00
- Intermediate
- Est. time: 1 to 3 months, 30+ hrs/week
Title: React Developer — CRM Integration (Freelance / Contract) We're looking for an experienced React developer to help finalize a custom-built CRM for a creative services company. The app is already live and functional — we need help integrating third-party APIs including Pipedrive, Google Workspace (Gmail, Drive, Calendar), JustCall.io, and Markup.io, plus wiring up AI tools (Gemini, Gamma.app). Stack: React, Vite, Tailwind CSS, Base44 (BaaS), Deno backend functions What you'll do: - Connect OAuth-based integrations (Google, Pipedrive, JustCall) - Build automated email/workflow triggers via backend functions - Polish UI components and fix edge-case bugs Ideal candidate: 3–5 yrs React experience, comfortable with REST APIs and OAuth flows, bonus if you've worked with Pipedrive or Google Workspace APIs. Estimated: 60–100 hrs | Milestone-basedThis is a part-time engagement for 1 to 3 months. Freelancer Project Brief — Flyer View Group CRM Project Overview Flyer View Group is a geospatial marketing firm that produces custom murals, posters, story maps, and dynamic map programs for commercial real estate and economic development clients. We have a custom-built internal CRM (built on Base44, a React + Vite + cloud-backend platform) that manages the full lifecycle of prospects, deals, contacts, organizations, and projects. We need an experienced freelance full-stack developer to: Complete and stabilize all existing CRM functionality (described below) Wire up live integrations with our third-party tool stack Deploy and test the system so it's production-ready for daily use by a small team What's Already Built The CRM currently includes: Dashboard — activity summaries, pipeline metrics, revenue charts Prospecting — outreach tracking with AI-assisted qualification Contacts & Organizations — tabbed detail slide-over panels, quick actions Pipeline — Kanban-style deal board with stage drag-and-drop Projects — grid/list views with Pipedrive-style project cards, stage transitions, subscription tracking Activities/Tasks — logging, scheduling, assignments, priority tracking Mail page — stub ready for email integration Backend functions — deal-to-project conversion, proof tracker, subscription renewal alerts, outreach automation stubs AI Assistant — global sidebar AI agent (Base44 in-app agent) Work Required 1. Polish & Wire Up Internal Functionality Fix any broken UI states, edge cases, or incomplete components Ensure all entity relationships (Deal → Project → Contact → Org) work end-to-end Complete the proof versioning workflow (version bump → task creation → notification) Finalize subscription renewal alert automation (60/30 day triggers) Ensure all slide-over detail panels are fully functional with edit/save/delete 2. Third-Party Integrations Service Integration Goal Google Workspace (Drive, Gmail, Calendar, Docs) Auto-link Drive folders per project; log emails as activities; sync calendar events to Activities; create Docs from project templates Pipedrive Two-way sync of Deals, Contacts, and Organizations via Pipedrive REST API; map CRM stages to Pipedrive pipeline stages Markup.io Embed or deep-link Markup.io review sessions to project proof records; store review URLs on the Project entity JustCall.io Click-to-call from Contact/Prospect records; log inbound/outbound calls as Activities automatically via JustCall webhook Gemini (Google AI) Power AI-assisted prospect qualification scoring, outreach message generation, and project notes summarization via Gemini API Gamma.app Store and display Gamma presentation links per project (partially built); add ability to generate a Gamma link stub from within the project record app.atlas.co Store and display Atlas map links per project; integrate link management into project detail panel 3. Automation Wiring Connect existing backend function stubs to real API calls Set up and test all Base44 automations (entity triggers + scheduled tasks) Ensure webhook endpoints are secured and validated 4. Testing & Documentation End-to-end QA of all workflows Document integration setup steps (API keys, webhook URLs, OAuth scopes) Provide a brief handoff guide Required Qualifications Must Have: 3+ years of React development (hooks, React Query, component architecture) Experience with REST API integrations and OAuth 2.0 flows Familiarity with webhook-based event handling Strong JavaScript/TypeScript skills Experience integrating Google Workspace APIs (Drive, Gmail, Calendar) Ability to read and work within an existing codebase without rewriting everything Nice to Have: Prior experience with Pipedrive API or similar CRM APIs Experience with Base44 or similar BaaS platforms (Supabase, Firebase) Familiarity with JustCall, Markup.io, or annotation/review tools Experience with Gemini / Google AI Studio APIs UI/UX sensibility to maintain the existing dark, premium SaaS design system Tech Stack Document Frontend Layer Technology Framework React 18 (Vite) Routing React Router v6 State / Data Fetching TanStack React Query v5 Styling Tailwind CSS v3 Component Library shadcn/ui (Radix UI primitives) Icons Lucide React Animations Framer Motion Charts Recharts Drag & Drop @hello-pangea/dnd Forms React Hook Form + Zod Date Utilities date-fns Backend / Platform Layer Technology Platform Base44 (BaaS — database, auth, functions, agents) Backend Functions Deno Deploy (TypeScript/JS serverless handlers) Database Base44 managed NoSQL (entity-based schema) Auth Base44 Auth (JWT, Google OAuth, email/OTP) File Storage Base44 Storage (public + private file URLs) AI / LLM Base44 InvokeLLM (OpenAI GPT-4o-mini default; Gemini configurable) In-App Agent Base44 Agent SDK (chat UI + tool permissions) Automations Base44 Automations (scheduled, entity-triggered, connector webhooks) Integrations Required Service Auth Method API Type Google Workspace (Drive, Gmail, Calendar, Docs) OAuth 2.0 (Base44 Google connector) REST + Webhooks Pipedrive API Token / OAuth REST Markup.io API Key REST JustCall.io API Key + Webhooks REST + Webhooks Google Gemini API Key (Google AI Studio) REST Gamma.app Manual URL (no public API) Deep Link app.atlas.co Manual URL / API Key (if available) REST / Deep Link Infrastructure Notes All backend logic runs as Deno serverless functions — no Node.js, no Docker Secrets/API keys stored as Base44 environment variables (never in source code) No separate database or hosting needed — Base44 handles all of it The codebase is a single React SPA deployed via Base44's hosting Deliverables Fully functional CRM with all existing features working Live integrations for all 7 services listed above All Base44 automations configured and tested API key / webhook setup documentation Handoff notes for ongoing maintenance Estimated Scope ~80–120 hours depending on experience level with the tools involved. Fixed-price bids preferred with milestones. Please include examples of prior CRM integrations or API work in your proposal. Platform: Base44 (base44.com) — Freelancer must be comfortable reading existing React/Deno code and working within the Base44 ecosystem. A 1-hour paid discovery call is required before work begins.
- Hourly
- Intermediate
- Est. time: 1 to 3 months, Less than 30 hrs/week
We are looking for 2-3 AI engineers/developers to help us build/complete an AI go-to-market (GTM) tool that looks at both structured and unstructured data, runs it all through our AI engine, and provides insights and recommendations straight to sales people. The tool is able to handle large volumes of data and provide actionable insights for business decision-making. Our engine consists of a prioritization algorithm, pattern matching and sentiment analysis. We use our recommendation engine to deliver the output (insights) straight to our tool which is "Apple-simple", intuitive and gamified. No more sales time wasted on looking at dashboards and trying to agree on which insights are important and which should be acted on. What you'll do Own features end-to-end across theFastAPI backend (IEngine) and Next.js 15 / React 19 frontend— from Claude prompt design to UI polish. Extend the intelligence pipeline: meeting ingestion (Google Drive + Deepgram realtime), Claude-driven action card generation, Neo4j relationship graph, and Supabase-backed state. Build customer-facing dashboard surfaces — deals, gamification, coaching, trust graph — with TypeScript, Tailwind, shadcn/ui, and D3. Operate WebSocket transcription sessions and async job pipelines reliably under real meeting load. Instrument with Sentry, harden auth (NextAuth :left_right_arrow: JWT :left_right_arrow: FastAPI service-to-service), and keep deploy pipelines green. Build with simulators: when you can't test against live meetings, generate realistic synthetic transcripts through our simulator service. Stack you'll work in Backend: Python 3.11, FastAPI, Uvicorn, PyJWT, Anthropic SDK, Deepgram, Neo4j, Supabase (Postgres + realtime), WebSockets Frontend: TypeScript, Next.js 15 (App Router), React 19, NextAuth 5, Tailwind, shadcn/ui, D3, Stripe Infra: Fly.io, GitHub Actions, Sentry, Supabase AI: Claude (Opus/Sonnet) for transcript analysis, action card generation, and agentic dev workflows What we're looking for 4+ years building production web applications, ideally across Python and TypeScript. Comfort designing and shipping features against an LLM API — prompt iteration, structured outputs, evals, cost/latency tradeoffs. Real Claude or OpenAI production experience required. Experience with multi-tenant SaaS patterns, JWT auth, and one or more of: graph databases, realtime systems, audio/transcription pipelines. Comfort with AI-assisted development workflows (Claude Code, Cursor, etc.) — not just as a code-completion tool, but as a way to plan and ship features. Bias toward shipping. Small surface area, high ownership, no committee.