REST API Tax Code Fetch
I need a small, well-structured REST call that receives basic product details and a U.S. delivery address, then returns the correct sales-tax code in JSON. The...
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Scalable Backend Architecture on AWS
I need a seasoned backend engineer to partner with me in shaping, building, and shipping a production-grade API service that can grow effortlessly while staying...
Read morePayment System Design Interview Coach
I am looking for an experienced software engineer who actively conducts system design interviews and have experienced with payment system. PLEASE do not waste y...
Read moreDesign and implementation of a central core using the Strangler Fig approach
Project Description: This project is for designing and implementing a central core using the Strangler Fig approach (migration to a microservices architecture)....
Read moreKong JWT Auth Integration
I’m setting up centralized authentication on our Kong API gateway and want to enable the built-in JWT plugin. The goal is straightforward: every request to our...
Read moreNative-English Senior Full-Stack Engineers
You’ll slot straight into a senior product squad that owns end-to-end delivery of new features on a cloud-based platform. Day to day, I’ll count on you to desig...
Read moreSenior Architect for OS Buildout
Title: Senior System Architect / Engineering Team for Multi Layer OS Buildout (Origin Scale → Axiom Scale) Description: We are building OmniWorld One OS, a mult...
Read moreSpring boot server and exe building
I have a one project in which two parts first part.If that we have a springboot jar which api . Api hits a external server and demand someing external server re...
Read morePlataforma SaaS modular agent-first: 1 feature = 1 repo = 1 agente
Resumen Busco un ingeniero de software senior para construir desde cero la infraestructura base de una plataforma SaaS modular cuyo eje es: cada feature de nego...
Read moreOngoing Software Maintenance Support (not for indian and pakistan)
I’m looking for a reliable pair of hands to keep several production applications healthy and evolving. The stack is mixed—JavaScript on the front end, Python mi...
Read more.NET/C# ABP Backend Developer -- 2
Looking for senior .NET backend developer to join ongoing development of backend system. You will be responsible for building out core backend functionalities,...
Read moreSpring Boot Developer – Microservices Stabilization, Integration & Testing Project Details
Project Details 1. Project Overview(Backend Microservices System (SPRING FRAMEWORK ONLY)) We are developing a large-scale, enterprise-level digital commerce pla...
Read moreGolang / PostgresDB / REACT Stack Developer for Financial Microservices Role must be in Melbourne AU
Golang PostegresDB REACT Stack Developer to build our Finance Module (POC with DB and Endpoints provided) This is a 4 week contract to test end points and build...
Read moreFull-Stack Java back and Front Development help -- 2
I’m rolling out a new feature that touches both ends of our stack. On the backend we run Java 21 with Spring Boot micro-services, alongside a small Node.js/Pyth...
Read moreDesign and Implementation of a Central Core for 6AM Mart Source Code using the Strangler Fig Approach (Migration to Microservices Architecture)
Project Title Design and Implementation of a Central Core for 6AM Mart Source Code using the Strangler Fig Approach (Migration to Microservices Architecture) 6A...
Read moreBinary Trading Web App Development
Project Title: Advanced Binary Trading Platform --- Project Overview: We are developing a high-performance, real-time binary trading platform inspired by modern...
Read moreLooking for CTO / Technical Director for an AI+IoT Startup (Remote, Equity)
Project Description: We are a third-party company helping an international startup find a technical leader. Our partner is OctaSence (website currently being up...
Read moreSenior Full-Stack Engineer (Java/Angular) Needed
It looks like you are drafting a highly technical job post on **Freelancer.com** for a Senior Full-Stack Engineer or Software Architect. Since you are currently...
Read moreUltra-Low-Latency Call Metadata API using Go lang
I am building a stateless Go micro-service that will sit between Orange’s push-based feed of live call events and several AI/agent components that must query th...
Read moreDesign AWS Microservices CI/CD Pipeline
My engineering team runs a suite of container-based microservices on AWS, but our current release process is still semi-manual. I want a clean, opinionated CI/C...
Read moreSenior Full-Stack Developer — Complete 6 Modules on Production Logistics Platform (NestJS + Next.js + Expo)
About the Project LDX is a production freight & customs platform for a Canadian/US cross-border trucking brokerage. Core is shipping — multi-tenant auth, loads,...
Read moreDocker IPTV Playlist Automation
I need a developer who can wrap Threadfin inside a rock-solid Docker architecture so I can manage and distribute IPTV playlists for more than a hundred individu...
Read moreTech Lead for AI-Driven Modernization Pilot (12 weeks)
Looking for a hands-on Tech Lead to drive an AI-driven modernization pilot. You’ll work across architecture, legacy systems, and AI-assisted development to deli...
Read moreAWS Deployment & Application Optimization
Hi I will share the details with the shortlisted candidates. Thanks
Read moreEnterprise-Level Library Management Software
Project Title: Enterprise Standard Library Management System (.NET Web API + Next.js | Scalable, Secure, Microservices-Ready) Project Description: We are lookin...
Read moreWorkload Identity SPIFFE, SPIRE, HELM Based Deployment
Implement secure workload identity for Kubernetes using SPIFFE/SPIRE. Deploy SPIRE Server and Agents, configure attestation, issue short-lived identities (SVIDs...
Read moreArquitectura de Software y Diseño de Prototipo para Sistema de Gestión de Innovación.
Somos un ecosistema tecnológico en crecimiento que gestiona una flota activa de 300 vehículos con proyección a 3,000. Estamos institucionalizando nuestro proces...
Read moreRemote Interview Representative for Developer
I am expanding my software-engineering agency into the US, Canada, and European markets and I need a confident voice on interview calls who can represent our se...
Read moreDevelop Customized Rideshare Smartphone App -- 2
Need help to build ride share phone app. I have the code but need to work on it review , develop For driver and rider.. 1. User & Identity Management • Rider re...
Read moreAI-Centric Backend Development
I’m building a production-grade backend that orchestrates multi-step LLM workflows and serves them through a FastAPI layer. The stack is Python first, so I need...
Read moreSenior Full-Stack Developer — SaaS Completion, AI Integration and Production Hardening (Next.js + Stripe + AWS)
PROJECT OVERVIEW This project is NOT starting from scratch. The system is built on SaasPilot, which already provides: Full authentication system Stripe payment...
Read moreAppian AOK Kubernetes
Appian expert, Appian on kubernetes, Appian process model, Appian cloud, Appian connectors, integration objects
Read moreFastAPI Microservices Web Development
I need a concise, production-ready web solution built with FastAPI following a micro-services architecture. The project is strictly backend-focused: each servic...
Read moreFull-Stack Java back and Front Development help
I’m rolling out a new feature that touches both ends of our stack. On the backend we run Java 21 with Spring Boot micro-services, alongside a small Node.js/Pyth...
Read moreAWS Deployment & Application Optimization
Hi I will share the details with the shortlisted candidates. Thanks
Read moreApplication Optimization & Error Elimination
1- Update application calls should have zero delay so that calls go at full speed. 2- Latency is very important — locally it's 250-300ms, so after deploying on...
Read moreSupply Chain Logistics Platform Build
I’m setting up a dedicated platform that streamlines end-to-end supply chain operations—everything from order intake to final delivery—so I need a developer who...
Read moreSenior ERP Contable Java/Angular
Estoy iniciando el desarrollo de un ERP contable y necesito un desarrollador senior full-stack que lidere tanto el backend como el frontend. La solución se cons...
Read moreJava Text Parsing API
I need a Java backend API that receives raw text, parses it according to configurable rules, and returns clean, structured JSON. The service acts purely as a da...
Read moreNeed Someone who can make microtools to drive massive traffic
For the website https://connections.dating-universe.com/ For App - https://play.google.com/store/apps/details?id=com.datinguniverse.connections Need someone who...
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