(Senior)Quality Assurance Automation Engineer (Mainapp)

Status
Beijing, China +5
Full time
Hybrid
Compensation is not specified
Role
QA Engineer
Description

Job Summary:

We are seeking a skilled individual to join our dynamic team responsible for designing, developing, maintaining, and enhancing software for a range of ventures projects. These projects are essential to our core businesses and are swiftly bootstrapped with a lean team. Your role will involve actively participating in the design of various components across scalable applications, spanning from frontend UI to backend infrastructure.

Key Responsibilities:

  • Develop and implement test plans and test cases, emphasizing the use of code to solve technical challenges and streamline the test cycle through automation.
  • Estimate test efforts, analyze and communicate test results, and engage in day-to-day QA activities.
  • Enhance, maintain, and optimize the test frameworks, tools, and technologies used by the organization to uphold high quality standards.
  • Collaborate with Development, Test, and Product Management teams to devise and execute test and validation strategies.
  • Manage test cases and results, report on test and defect metrics, and troubleshoot automated test scenarios across various systems.
  • Contribute to the creation of robust, scalable, and high-quality test automation solutions for functional, regression, and performance testing.
  • Assist in establishing a Continuous Integration (CI) environment and participate in ongoing process improvement endeavors.
  • Identify necessary enhancements in the test and development processes, and contribute to automation tools that address specific needs.
  • Uphold a high quality standard in a dynamic and constantly evolving work environment.

Required Skills and Qualifications:

  • Experience in mobile testing and application of automated test techniques, with a focus on maintaining quality throughout the software development cycle.
  • Proficiency in REST and WebSocket API automation testing using Python/Java.
  • Familiarity with frameworks such as Pytest, Pytest-bdd, Appium, Selenium, Cucumber, etc.
  • Strong knowledge of object-oriented programming, with coding and debugging skills.
  • Competence in Python/Java design and development.
  • Understanding of software design principles, patterns, algorithms, data structures, and multi-threading concepts.
  • Ability to translate functional requirements and use cases into practical test plans and cases.
  • Strong customer focus, excellent problem-solving skills, and analytical capabilities.
  • Effective verbal and written communication skills.
  • Some exposure to continuous integration practices, such as Jenkins or CircleCI.
  • Preferred experience working in an agile environment.
  • Capability to work on Windows, Linux is a bonus.
  • Passion for enhancing code quality by collaborating with the development team.
  • Aptitude for adhering to coding standards and active participation in code reviews.

Benefits:

  • Competitive salary
  • Generous annual leave entitlement, including birthday and work anniversary leave
  • Flexibility in work hours and hybrid or remote work options
  • Opportunities for career growth and internal mobility
  • Issuance of a crypto.com visa card upon joining

About Crypto.com:

Founded in 2016, Crypto.com serves over 80 million customers and is recognized as the world's fastest-growing global cryptocurrency platform. Our mission is clear: Cryptocurrency in Every Wallet™. Driven by a commitment to security, privacy, and compliance, Crypto.com is dedicated to accelerating cryptocurrency adoption through innovation. We empower the next generation of creators, builders, and entrepreneurs to cultivate a fairer and more inclusive digital ecosystem.

Note: Personal data from applicants will only be used for recruitment purposes, and only shortlisted candidates will be contacted.

Skills Required
Avatar
Сrypto.com
Company size
Not specified
Location
United States
Description
Not specified
Status

More Full-time Jobs

Show more

Senior Blockchain Engineer - Low-Latency Execution Infrastructure (HyperEVM / Hyperliquid)

Full time
Remote
 
 
we’re looking for a senior blockchain engineer to build low-latency execution infrastructure around hyperevm and hyperliquid-related trading systems.
 
this is not a frontend or dapp role. the focus is on real-time execution systems, chain-native infrastructure, and market-aware backend engineering where latency, ordering, and state correctness directly impact execution outcomes.
 
you will work on systems that operate under noisy, adversarial, and highly dynamic conditions, including delayed or missing websocket events, rpc inconsistencies, transaction lifecycle complexity, state desynchronization, retries, and recovery logic.
 
core responsibilities include building and maintaining realtime blockchain data pipelines, websocket and rpc streaming systems, execution orchestration layers, liquidity-aware routing logic, transaction lifecycle management, and integration with orderbook and market data systems.
 
we are specifically looking for engineers who think in systems rather than features. meaning understanding how data flows through pipelines, how state evolves over time, how failures propagate, and how to design systems that recover automatically without manual intervention.
 
areas of work include:
 
- realtime blockchain data ingestion
- mempool-aware execution flows
- transaction lifecycle handling
- execution sequencing and routing
- websocket and rpc infrastructure
- state synchronization systems
- liquidity and orderbook integration
- performance and latency optimization
 
you should be comfortable working with distributed systems, asynchronous event processing, and latency-sensitive backend architectures.
 
strong experience in one or more of the following areas is highly relevant:
 
- exchange infrastructure
- trading systems
- execution engines
- blockchain indexers
- realtime event systems
- arbitrage systems
- rpc/node infrastructure
- defi backend systems
- low-latency backend engineering
 
preferred technical stack:
 
- typescript / node.js
- go
- rust
- python
- postgres
- clickhouse
- redis
- kafka or similar messaging systems
- docker
- linux environments
- evm rpc internals
- websocket infrastructure
 
ecosystem familiarity:
 
- ethereum, arbitrum, base, optimism, bsc
- hyperliquid / hyperevm
- foundry
- ethers.js / viem
- geth / erigon / nethermind
- dex and amm mechanics
- liquidity math, slippage, gas strategy, routing logic
 
this role is not suitable for:
 
- frontend-only developers
- nft or basic dapp experience only
- tutorial-level web3 developers
- candidates without production systems experience
 
we value engineers who have built real systems where correctness, latency, and reliability matter under load. we care less about buzzwords and more about concrete systems you have personally built and operated.
 
ideal candidates can clearly explain:
 
- system architecture decisions
- bottlenecks and tradeoffs
- failure modes and recovery strategies
- latency considerations in real systems
- production debugging experience
 
working style:
 
- remote
- async-first
- low bureaucracy
- high ownership
- engineering-driven team
- direct technical communication
 
we strongly prefer practical engineering depth over polished presentation. if you have built or worked on systems involving realtime data, trading infrastructure, blockchain execution, or latency-sensitive backend systems, please include details of those systems when applying.
 
Payment in Crypto
6,000-13,500
Monthly
See details

Blockchain Engineer ‑ Copy-Trade Protocol at Zignaly

Singapore
Singapore
Full time
Remote
Mission:Emit immutable trade clones at the speed of mempools. Engineer on-chain vault + relay contracts that ingest master signals, laser-bridge them across EVM chains, and absorb slippage, MEV, and NFL Sunday-level volatility without exposing followers to liquidation contagion.
Stack & Level Requirements
Solidity 0.8.25+ via Foundry toolchain (Forge, Anvil, Cast) or Rust/Anchor on Solana
Proficiency: Huff / Yul inlines for gas micro-optimisations, EIP-712 signing, EIP-1167 minimal proxies
Cross-layer bridges: LayerZero, Wormhole, CCIP + custom relayers for <2 s finality
MEV-Geth style searchers – understand sandwich mechanics to architect commit-reveal patterned entry pools
Price oracles: Chainlink CCIP-read, Pyth, custom tick-level fallback for sub-$0.05 deviation error in volatility freak events
Security toolkit: Slither, Mythril, Echidna fuzz 1e6 vars/run, invariant bracelets as code
Gas profiling: forge-std Vm for on-chain gas snapshots pre-per-release hook
Hard-Check Trader DNA
⚔️ You have personally executed >$10 k notional on perpetuals & on-chain or cross-margined DeFi strategies with stress traces or Etherscan proof of addr.
⚔️ You’ve felt (or caused) impermanent loss >10 % in a single block.
⚔️ Optional but revered: vault or strategy on DeFiLlama/Apeboard with >$50 k TVL linked to your keys.
Responsibilities
Build gas-constrained e2e testnets atop Anvil mainnet fork for every release candidate.
Continuous white-hat review loop – both formal (Certora specs) & red-team bounty (Immunefi).
Coordinate with backend for off-chain signatures (EIP-712 typedData balancers).
Draft governance & upgrade timelocks (OpenZeppelin UUPS).
Be on-call for on-chain incidents (failed Oracle, stuck bridge, keeper tottering). with protocol parameters YAML files.
Soft Enemies – Don’t apply 
ifYou only deployed ERC-20 tokens and never** felt liquidation missiles.
You ignore MEV game theory.
Perks / Weapons Cache
Hardware fund: Apple M Max + 64 GB RAM, 10 Gbps fibre hookup.
Personal copy-trading gas allowance 1 k USD monthly – trade openly on testnet, share P&L in public.
Health stipend for red-eye debugging—includes premium dark-coffee & builder-milk.
Additional 1 % of inflation-scheduled supply upon achieving $100 m copy-AUM on ETH L2.
Apply Now
Attach:
Your latest CV. 
Etherscan link to your most brutal trading bot / vault (& TVL proof). 
GitHub repo (>20 stars) or archived PR of previous audited live contract address. 
Recorded deep-dive Loom of <180 s showing circuit breaker you built.
Cut-over: Applications stack-ranked & closed within 7 calendar days or when 3 offers signed—whichever happens first. Ready to ship settlement layer blood sport? 💥☠
Payment in Crypto
12,500-18,333
Monthly
See details

Earn $300-$1000/week - 50% Comission (crypto offers)

Part time
Hybrid
I am looking for serious closer/affiliate to sell a proven digital product 
Offers :
 product price :$97 
Your cut : 50% ( $48 per sale ) 
Paid same day in USDT after proof of sale 
Why this converts: Beginner friendly "make money" angle
Clear outcom: generate 150+ USDT in 24h
no subcription/no API cost
Ready- to use- landing page
Your role: 
Promote your link 
Close deals ( Dms,network,clients)
Product : lead generation tool ( Google maps ) packaged as a "cash systeme" already tested strong-demand 
Number close 
5 sales/day = $240 day no cap
Looking for motivated sellers only .
Send "Ready" to get started
Payment in Crypto
83.33-83.33
Monthly
See details

Expert AI Video Creator for Realistic Human Avatars (Marketing Videos)

Part time
Remote
We are looking for an experienced AI video creator to produce high-impact marketing videos for our landing pages and website. The main goal is to drive conversions by showcasing our products/services with engaging, realistic AI-generated content.
Critical requirement:
Videos must feature ultra‑realistic AI human avatars (spokespersons) that are virtually indistinguishable from real people. Natural voiceovers, perfect lip‑sync, and professional quality are a must.
Preferred tools (but not limited to):
Creatify.ai, Synthesia, HeyGen, DeepBrain AI, or any other leading platform known for realistic AI human generation. Please specify which tools you are proficient in.
Payment in Crypto
500-1,000
Monthly
See details

Marketing Performance Manager

Tbilisi, Georgia
Tbilisi, Georgia
Full time
Office
Marketing Performance Manager — Elements of a Soul
Location: Tbilisi, Georgia
Format: On-site · Full-time
Elements of a Soul (EOAS) is a Web3 MMORPG set in 2137, combining open-world gameplay, real Bitcoin mining integration, and an NFT-driven player economy.
We are looking for a Marketing Performance Manager to turn marketing performance data into clear growth decisions.
Key Responsibilities
Lead performance analytics and reporting
Set up tracking, build dashboards, define KPIs per KOL, cohort, channel, and campaign, manage UTM and on-chain attribution, run A/B tests, and translate data into actionable growth decisions.
Optimize campaign performance
Track paid, token-based, and performance-based partnerships, evaluate ROI, identify growth opportunities, and improve conversion from community attention to measurable results.
Support Web3 growth strategy
Contribute to campaign planning around NFT mints, token-related activations, whitelist campaigns, community growth, and player acquisition.
Requirements
Crypto/Web3 experience is a hard requirement
You have personally worked on or launched projects involving token launches, NFT mints, on-chain economies, Web3 communities, or crypto-native growth campaigns.
Deep Web3 fluency
You understand NFTs, tokens, tokenomics, P2E models, DAOs, crypto community behavior, and what drives trust, hype, engagement, and conversion in Web3 audiences.
Strong performance marketing background
3+ years of experience in performance marketing, ideally with proven results in crypto/Web3, community acquisition, or growth experiments.
Analytics-driven mindset
Analytics is part of your daily workflow. You are confident with platform analytics, Google Analytics, spreadsheets, A/B testing, campaign reporting, and performance optimization.
Nice to Have
These are not hard requirements, but they will make a candidate especially strong for this role:
Hands-on experience with NFT mints, OpenSea campaigns, token launches, tokenomics-based activations, or whitelist campaigns
Experience with crypto-native analytics tools such as Dune, Nansen, DappRadar, or similar platforms
Basic SQL or Dune query skills
Experience with automation tools such as n8n, Zapier, Make, CRM systems, or campaign tracking workflows
Experience in running KOL’s & Ambassador campaigns 
Gaming, Crypto, GameFi, or player community growth experience
What We Offer
Competitive compensation
Direct collaboration with the founders
Freedom to build the marketing performance function from scratch
Career growth path 
On-site work in Tbilisi with the core team
How to Apply
Please send:
CV (Marketing/Growth Portfolio would be an advantage)
Links to crypto/Web3 projects you have worked on, including your specific role and impact
An analytics, dashboard, reporting, or A/B test case study
Examples of KOL, ambassador, creator, or community growth campaigns with results (nice to have)
A short note on why EOAS interests you
Apply via: yulia@elementsofasoul.com