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REST API Developer – Backend Scalability

Jun 26, 2026 - MidLevel

$2,281.00 Fixed

SwiftTask AgencyFreelance · Remote · Flexible hoursAbout the roleSwiftTask Agency is launching a new SaaS product that relies on robust, scalable APIs...

JavaScript Node.js REST API PostgreSQL MongoDB
  • Proposal: 0
  • Less than a month

QA Software Tester Needed for Regression Testing

Jun 25, 2026 - MidLevel

$2,696.00 Fixed

BlueSky VenturesContract · Remote · Flexible hoursAbout the roleBlueSky Ventures is launching a new SaaS product and needs a detail‑oriented QA Softwa...

JavaScript REST API Manual Testing Test Automation
  • Proposal: 0
  • Less than a month

REST API Developer Needed for Microservices Deployment

Jun 25, 2026 - MidLevel

$1,986.00 Fixed

SwiftTask AgencyContract · Part-time · Remote · Flexible hoursAbout the roleWe are a marketing‑focused agency building data‑driven tools for campaign...

JavaScript Node.js REST API PostgreSQL MongoDB
  • Proposal: 0
  • Less than a month

Senior MongoDB Specialist for Database Migration

Jun 25, 2026 - Senior

$2,573.00 Fixed

CloudWave DigitalContract · Project-based · Remote · Flexible hoursAbout the roleWe are a marketing‑focused agency building a data‑driven campaign pla...

Node.js REST API PostgreSQL MongoDB Database Migration
  • Proposal: 0
  • Less than 2 month

QA Software Tester for CI Test Pipeline

Jun 25, 2026 - MidLevel

$2,679.00 Fixed

TechFlow IncProject-based · Remote · Flexible hoursAbout the roleTechFlow Inc is launching a targeted marketing analytics platform and needs a meticul...

JavaScript REST API Manual Testing Test Automation
  • Proposal: 0
  • Less than a month

Senior Microservices Architect Needed for API Gateway Setup

Jun 25, 2026 - Senior

$1,593.00 Fixed

NexGen MediaContract · Remote · Flexible hoursAbout the roleNexGen Media is expanding its digital marketing platform with a microservices‑based archit...

JavaScript REST API Microservices
  • Proposal: 0
  • More than 3 month

Senior Data Scientist Needed for Predictive Analytics Build

Jun 25, 2026 - Senior

$2,252.00 Fixed

CoreData SystemsContract · Flexible hoursAbout the roleCoreData Systems is seeking a senior Data Scientist to lead the design and implementation of ad...

REST API Machine Learning Data Science PostgreSQL
  • Proposal: 0
  • Less than 3 month

Prompt Engineer Needed for AI Prototype Build

Jun 25, 2026 - MidLevel

$1,576.00 Fixed

CloudWave DigitalContract · Flexible hoursAbout the roleWe are seeking a Prompt Engineer to craft, test, and refine prompts for our generative AI prod...

JavaScript REST API Prompt Engineering OpenAI API
  • Proposal: 0
  • Less than 2 month

Senior Generative AI Specialist Needed for RAG Pipeline Build

Jun 25, 2026 - Senior

$1,588.00 Fixed

BlueSky VenturesContract · Flexible hoursAbout the roleBlueSky Ventures is building next‑generation AI products that transform user experiences. We ne...

JavaScript REST API Generative AI OpenAI API Test Automation
  • Proposal: 0
  • Less than 3 month

Senior Generative AI Specialist for LLM Integration

Jun 25, 2026 - Senior

$1,588.00 Fixed

BlueSky VenturesContract · Flexible hoursAbout the roleBlueSky Ventures is building next‑generation AI products that transform user experiences. We ne...

JavaScript REST API Generative AI OpenAI API
  • Proposal: 0
  • Less than 3 month