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264 anonymous candidates

Senior Java Engineer

5+

Popular candidate! Connected by 5+ companies

  • Germany, Berlin
  • Less than 1 year
  • $48k ($4k / month)
  • Intermediate
Core technical skills
JavaScript
manual testing
API testing
AWS
Functional testing
Blockchain
Usability testing
Achievements / Key results
Default unit-test code coverage on products I work on is 75%. Engineered many own tools like notification engine, performance tool for REST, database client. Worked as tech lead in a high-load low-latency system that could serve over 200qps per cluster
Considering roles
FRONTEND
DEVOPS
FULL STACK
MOBILE
Ready to work
remotely
Experience details are hidden. To make them visible, send a message to the candidate.

Experience

  • Java engineer

    Mar 2025 - Apr 20261 year 2 months

Python

  • United States, Las Vegas
  • 3-5 years
  • $20k ($1.7k / month)
  • Intermediate
Core technical skills
MS SQL Server
MongoDB
Automation testing
Smoke testing
Blockchain
Achievements / Key results
H
Considering roles
DEVOPS
FULL STACK
Ready to work
remotely
Experience details are hidden. To make them visible, send a message to the candidate.

Experience

  • GF

    Feb 2002 - current time24 years 9 months

blockchain developer

  • India, Pune
  • 1-3 years
  • $100k ($8.3k / month)
  • Intermediate
Core technical skills
Solidity
Python
Java
Blockchain
JavaScript
Achievements / Key results
Build production level project . merge 6 pr's in the ethereum . selected in Google summer of code .
Considering roles
FULL STACK
BACKEND
Ready to work
remotely
Experience details are hidden. To make them visible, send a message to the candidate.

Experience

  • protocol testing

    Jul 2026 - current time4 months

Web3/Web2 Fullstack Developer

5+

Popular candidate! Connected by 5+ companies

  • Nigeria, Lagos
  • 5+ years
  • $60k ($5k / month)
  • Advanced
Core technical skills
Solidity
TypeScript
React.js
Rust
JavaScript
MongoDB
Node.js
Blockchain
Achievements / Key results
Achievements / Key Results Competitive builds 1st Place — Flare Hackathon · Airclaim 2nd Best Project — Vincent AI Agent Hackathon Best Project — Surreal Buildathon, IP Protection & Enforcement Tool track 2nd Best Project — Avalanche EERC20 Bounty Honourable Mention — Zora Coinathon Grant recipient — Cartesi Grants Program Security Audited production codebases in six languages — Solidity, Rust, Clarity, C++, Move, C — inside a four-month stint at Nethermind Built an AI agent for development workflows and smart contract security analysis Triaged AI-scanned findings across live bug bounty programs and active audit contests Confirmed findings on Code4rena, Cantina, and Sherlock Wrote 20+ production Solidity contracts (NFT marketplaces, ERC-20s, Chainlink VRF, AMM swaps, staking, fractional NFTs, Merkle proofs, multisig) with Hardhat and Foundry test suites Engineering Converted a React SPA to SSR to unlock SEO and dynamic Open Graph previews; deployed on AWS S3 + CloudFront Shipped full-stack products across fintech, edtech, healthtech, and e-commerce Built a user-activity tracking tool (embeddable script), a link-auditing crawler, and a breaking-news video marketplace backend
Considering roles
FULL STACK
FRONTEND
BACKEND
Ready to work
remotely
Experience details are hidden. To make them visible, send a message to the candidate.

Experience

  • Intern

    Feb 2026 - May 20264 months

  • Fullstack Engineer

    Oct 2022 - Jun 20252 years 9 months

e

5+

Popular candidate! Connected by 5+ companies

  • United States, Denver
  • 3-5 years
  • $2.4k ($200 / month)
  • Intermediate
Core technical skills
Functional testing
GraphQL
Angular.js
Blockchain
Usability testing
Qa
React Native
Automation testing
Android
Sanity testing
Wireframing
Firebase
Hibernate
Django
Kafka
Achievements / Key results
abc
Considering roles
MOBILE
Ready to work
remotely
Experience details are hidden. To make them visible, send a message to the candidate.

Experience

  • rgqe

    Mar 2012 - current time14 years 8 months

QA

  • Ukraine, Lviv
  • 1-3 years
  • Upper intermediate
Core technical skills
Functional testing
Blockchain
GraphQL
Smoke testing
PostgreSQL
Achievements / Key results
000
Considering roles
FRONTEND
BACKEND
Ready to work
remotely
Experience details are hidden. To make them visible, send a message to the candidate.

Experience

  • //

    Feb 2001 - current time25 years 9 months

cx

5+

Popular candidate! Connected by 5+ companies

  • Ukraine, Lviv
  • 1-3 years
  • $7.2k ($600 / month)
  • Advanced
Core technical skills
MongoDB
HTML & CSS
manual testing
Blockchain
Functional testing
Achievements / Key results
kjjjjj
Considering roles
FULL STACK
Ready to work
remotely
Experience details are hidden. To make them visible, send a message to the candidate.

Experience

  • ggg

    Feb 1996 - Mar 201014 years 2 months

qa

50+

Popular candidate! Connected by 50+ companies

  • Ukraine, Pivdennoukrainsk
  • 5+ years
  • $120k ($10k / month)
  • Elementary
Core technical skills
MySQL
JavaScript
API testing
Java
AWS
Functional testing
SASS
GraphQL
manual testing
Android
Usability testing
Blockchain
Angular.js
Wireframing
Firebase
Achievements / Key results
q
Considering roles
QA
Ready to work
remotely
Experience details are hidden. To make them visible, send a message to the candidate.

Experience

  • QA

    Jan 2026 - current time10 months

QA Engineer

10+

Popular candidate! Connected by 10+ companies

  • Croatia, Zagreb
  • Less than 1 year
  • $2.4k ($200 / month)
  • Elementary
Core technical skills
MS SQL Server
Blockchain
Cypress
MongoDB
Design thinking
API testing
Docker
DevOps
AWS
Achievements / Key results
qq123)))&&&&&
Considering roles
DEVOPS
MOBILE
FULL STACK
DATA SCIENCE
BACKEND
Ready to work
remotely
Experience details are hidden. To make them visible, send a message to the candidate.

Experience

  • garshcs

    Jan 2100 - current time-878 months

Pro sleeper

15+

Popular candidate! Connected by 15+ companies

  • Japan, Osaka
  • 5+ years
  • $56k ($4.7k / month)
  • Advanced
Core technical skills
Django
CI/CD
Docker
Blockchain
RxSwift
Achievements / Key results
jaja
Considering roles
FULL STACK
DEVOPS
Ready to work
remotely
osaka
Experience details are hidden. To make them visible, send a message to the candidate.

Experience

  • Pro Sleeper

    Feb 2050 - Mar 2700650 years 2 months

k

5+

Popular candidate! Connected by 5+ companies

  • Poland, Kraków
  • 1-3 years
  • $5k ($417 / month)
  • Pre intermediate
Core technical skills
Kubernetes
GraphQL
Angular.js
Blockchain
MySQL
Automation testing
Achievements / Key results
k
Considering roles
FULL STACK
Ready to work
remotely
Experience details are hidden. To make them visible, send a message to the candidate.

Experience

  • k

    Mar 1995 - current time31 years 8 months

k

5+

Popular candidate! Connected by 5+ companies

  • India, Rishikesh
  • 3-5 years
  • $5k ($417 / month)
  • Intermediate
Core technical skills
RabbitMQ
Android
Functional testing
Blockchain
Wireframing
Achievements / Key results
r
Considering roles
FRONTEND
MOBILE
Ready to work
remotely
Experience details are hidden. To make them visible, send a message to the candidate.

Experience

  • r

    Mar 1995 - current time31 years 8 months

sd

10+

Popular candidate! Connected by 10+ companies

  • South Africa, Maluti-a-Phofung Local Municipality
  • 1-3 years
  • $10k ($833 / month)
  • Pre intermediate
Core technical skills
TypeScript
Java
SASS
manual testing
Blockchain
Achievements / Key results
іфапв
Considering roles
DEVOPS
Ready to work
remotely
Experience details are hidden. To make them visible, send a message to the candidate.

Experience

  • фіфі

    Jan 1999 - current time27 years 10 months

nlol

10+

Popular candidate! Connected by 10+ companies

  • Ukraine, Kyiv
  • 5+ years
  • $2.4k ($200 / month)
  • Pre intermediate
Core technical skills
Wireframing
Node.js
PostgreSQL
Smoke testing
Blockchain
Flutter
MongoDB
Docker
SwiftUI
HTML & CSS
Solidity
Redux
CI/CD
Black box testing
Flask
Achievements / Key results
.linkedin.com/in/mariia-feshchenko-62159636a/recent-activity/all/
Considering roles
DATA SCIENCE
Ready to work
remotely
Experience details are hidden. To make them visible, send a message to the candidate.

Experience

  • non

    Jan 2022 - current time4 years 10 months

Desired Position

5+

Popular candidate! Connected by 5+ companies

  • Ukraine, Kharkiv
  • Less than 1 year
  • $2.4k ($200 / month)
  • Elementary
Core technical skills
Kubernetes
DevOps
Machine Learning
Blockchain
C++
Achievements / Key results
some general achivements bio
Considering roles
BACKEND
FRONTEND
FULL STACK
Ready to work
remotely
Experience details are hidden. To make them visible, send a message to the candidate.

Experience

  • hr

    Jan 2024 - Feb 20251 year 2 months

лллллллллллллллллллллллллллллллллллллллллллллллллллллллллллллллллллллллллллллллллллл

15+

Popular candidate! Connected by 15+ companies

  • Ukraine, Kyiv
  • 1-3 years
  • $2.5k ($208 / month)
  • Upper intermediate
Core technical skills
Vue.js
Kafka
Design thinking
Docker
Blockchain
Achievements / Key results
hi
Considering roles
DEVOPS
Ready to work
remotely

Senior Front end Developer

50+

Popular candidate! Connected by 50+ companies

  • Poland, Warsaw
  • 5+ years
  • $72k ($6k / month)
  • Advanced
Core technical skills
JavaScript
TypeScript
React.js
Blockchain
HTML & CSS
Achievements / Key results
Full application rewrite & redesign w/ modern & latest versioned tech stack Addition of the convertor layer for integration of the legacy BE w/ modern FE
Considering roles
FRONTEND
Ready to work
remotely
Experience details are hidden. To make them visible, send a message to the candidate.

Experience

  • Senior Front-end developer

    Jul 2022 - current time4 years 4 months

  • Senior Front-end developer

    Dec 2020 - Jul 20221 year 8 months

  • Front-end developer

    Dec 2017 - Dec 20203 years 1 month

Junior Software Engineer

15+

Popular candidate! Connected by 15+ companies

  • India, Kochi
  • 1-3 years
  • $5k ($417 / month)
  • Advanced
Core technical skills
Blockchain
Web3
Node.js
Solidity
Go
Docker
Express.js
React.js
MongoDB
PostgreSQL
Achievements / Key results
Tokenization Platform: – Contributed to the development of tokenization modules and automated pair creation logic. – Assisted in researching and implementing EIP-2535 (Diamond Standard) to support a modular contract architecture. – Supported cross-chain functionality efforts through bridging research and smart contract testing. – Participated in deployment and contract verification processes across Ethereum and Polygon testnets. • Supply Chain Infrastructure Solution: – Collaborated on engineering Upgradable Smart Contracts utilizing the UUPS standard to ensure system maintainability. – Helped build a secure Blockchain Abstraction Layer to simplify transaction routing between the backend and distributed ledger. – Executed automated security audits using Slither, Mythril, and Echidna to help the team identify and fix vulnerabilities. • General Blockchain Frontend Integration: – Integrated Web3 libraries (Ethers.js / Web3.js) with React.js to connect decentralized protocols with user interfaces. – Authored comprehensive unit tests and deployment scripts to ensure codebase reliability before testnet migration. – Participated in architectural discussions for dApps, gaining hands-on exposure to CeDeFi compliance and scalability.
Considering roles
FULL STACK
BACKEND
FRONTEND
Ready to work
remotely
bengaluru
kochi
thiruvananthapuram
chennai
hyderabad
Experience details are hidden. To make them visible, send a message to the candidate.

Experience

  • Junior Software Engineer

    Aug 2025 - current time1 year 3 months

DEVELOPER

15+

Popular candidate! Connected by 15+ companies

  • Ukraine, Kyiv
  • 1-3 years
  • $12k ($1000 / month)
  • Intermediate
Core technical skills
Blockchain
Java
Kafka
Kotlin
Firebase
Achievements / Key results
• I have a pet project with more than 60k users • Delivered / took part in ~40 iOS/macOS apps in 7 years • Each time I start on a project I end up leading it • Leading a mobile team of a product with 1M+ DAU
Considering roles
DEVOPS
Ready to work
remotely
Experience details are hidden. To make them visible, send a message to the candidate.

Experience

  • QA

    Jan 2024 - Aug 20248 months

csc

15+

Popular candidate! Connected by 15+ companies

  • Germany, Frankfurt am Main
  • 1-3 years
  • $20k ($1.7k / month)
  • Intermediate
Core technical skills
JavaScript
React Native
Human Interface Guidelines
Blockchain
Functional testing
Achievements / Key results
svsdvdf
Considering roles
PM
Ready to work
remotely
Experience details are hidden. To make them visible, send a message to the candidate.

Experience

  • vsavd

    Jan 2025 - current time1 year 10 months
View 244 more candidates