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Python Backend Developer – Customer-Facing API Design

Aug 5, 2026 - MidLevel

$1,511.00 Fixed

CoreData SystemsFreelance · Remote · Flexible hoursAbout the roleCoreData Systems is launching a brand‑new greenfield SaaS product. We need a Python B...

Javascript NodeJS Rest API PostgreSQL
  • Proposal: 0
  • Less than 2 month

iOS App Developer – Backend Scalability Engagement

Aug 5, 2026 - MidLevel

$1,844.00 Fixed

Keystone DigitalContract · Remote · Flexible hoursAbout the roleKeystone Digital is preparing a major iOS launch and needs an iOS App Developer to lif...

Javascript NodeJS Rest API Mobile App Development Swift (iOS)
  • Proposal: 0
  • Less than a month

React Native Developer – Cloud-Native Responsive Layout

Aug 5, 2026 - MidLevel

$2,302.00 Fixed

Harbor SoftworksFreelance · Remote · Flexible hoursAbout the roleHarbor Softworks is accelerating its release cadence for a cross‑platform mobile suit...

Android Javascript React Rest API Swift (iOS)
  • Proposal: 0
  • Less than 2 month

React Native Developer for Scalable Cross-Platform App Build

Aug 5, 2026 - MidLevel

$2,302.00 Fixed

Harbor SoftworksFreelance · Remote · Flexible hoursAbout the roleHarbor Softworks is accelerating its release cadence for a cross‑platform mobile suit...

Android Javascript React Rest API Swift (iOS)
  • Proposal: 0
  • Less than 2 month

Senior MongoDB Specialist for High-Volume Performance Tuning

Aug 5, 2026 - Senior

$1,688.00 Fixed

Cascade AppsProject-based · Remote · Flexible hoursAbout the roleCascade Apps is undertaking a performance and reliability overhaul of its customer‑fa...

NodeJS Rest API PostgreSQL MongoDB Database Migration
  • Proposal: 0
  • Less than 2 month

Senior Python Backend Developer – Service Reliability Rollout

Aug 5, 2026 - Senior

$2,583.00 Fixed

Silverline LabsContract · Remote · Flexible hoursAbout the roleSilverline Labs is undertaking a performance and reliability overhaul of its customer‑f...

Javascript NodeJS Rest API PostgreSQL
  • Proposal: 0
  • Less than 2 month

Backend Developer – Service Reliability

Aug 5, 2026 - MidLevel

$1,619.00 Fixed

Cascade AppsContract · Remote · Flexible hoursAbout the roleCascade Apps is modernizing its legacy production platform, codenamed "Nebula Engine", to...

Javascript NodeJS Rest API PostgreSQL
  • Proposal: 0
  • Less than 2 month

Backend Developer Needed for Auth Service Build

Aug 5, 2026 - MidLevel

$1,619.00 Fixed

Cascade AppsContract · Remote · Flexible hoursAbout the roleCascade Apps is modernizing its legacy production platform, codenamed "Nebula Engine", to...

Javascript NodeJS Rest API PostgreSQL
  • Proposal: 0
  • Less than 2 month

Senior Data Scientist – Query Optimization Sprint

Aug 5, 2026 - Senior

$2,075.00 Fixed

Pinecrest SystemsContract · Remote · Flexible hoursAbout the rolePinecrest Systems is modernizing its launch pipeline by building a test‑automation up...

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

Senior Data Scientist – Query Optimization Initiative

Aug 5, 2026 - Senior

$2,075.00 Fixed

Pinecrest SystemsContract · Remote · Flexible hoursAbout the rolePinecrest Systems is modernizing its launch pipeline by building a test‑automation up...

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