Backend Production Support Engineer - Night Shift
Status
Shenzhen, China
Full time
Hybrid
Compensation is not specified
Role
DevOps
Description
We are seeking a skilled individual to join our team dedicated to designing, developing, maintaining, and enhancing software for diverse venture projects aligned with our core businesses. These projects are rapidly implemented with a lean team. As a team member, you will play a key role in designing various components for scalable applications, ranging from frontend UI to backend infrastructure.
Responsibilities
- Provide operational support during trading hours and manage daily operational procedures.
- Actively monitor application performance and troubleshoot any issues promptly.
- Work within the development team to create tools for operations and enhance system observability.
- Automate and optimize operations and processes to drive efficiency.
- Collaborate with colleagues, escalate to subject matter experts when needed, and establish strong working relationships with different operational groups.
- Communicate effectively with developers and internal stakeholders regarding infrastructure and platform issues.
- Collaborate with the SRE team to offer monitoring feedback in order to enhance observability.
- Document operational procedures and establish a knowledge base to ensure scalable and maintainable operations.
- Coordinate with vendors and internal stakeholders to ensure proper installation, configuration, and testing of application services.
- Implement change management processes by evaluating change risks and devising backup plans.
Requirements
- Minimum 5 years of experience in DevOps, particularly with AWS, Kubernetes, and CI/CD pipelines.
- Proficiency in a Linux environment and relevant support tools.
- Hands-on experience with shell scripting, Ruby, and SQL technologies.
- Familiarity with monitoring and logging systems such as Datadog, Sumologic, and OpenTelemetry.
- Knowledge of exchange platform domain.
- Familiarity with GitOps using ArgoCD is a plus.
- Strong analytical skills with a proactive approach to problem identification and resolution.
- Detail-oriented with good multitasking abilities and ownership of work.
- Excellent communication and interpersonal skills for engaging with technical and non-technical stakeholders.
- Proficiency in both written and spoken English and Mandarin; knowledge of Cantonese is a bonus.
- Willingness to work flexible hours, including covering U.S. trading sessions.
- Positive and proactive attitude with a "can-do" mindset.
Desired Skills
- Experience with version control systems, with Git knowledge being advantageous.
- Understanding of SDLC processes and a proactive approach to process automation.
- Quick learner with the ability to adapt to new technologies.
- Previous experience managing software on AWS would be beneficial.
Benefits
- Competitive salary.
- Generous annual leave entitlements, including birthday and work anniversary leave.
- Flexibility in work arrangements including flexible hours and hybrid or remote setup.
- Opportunities for career growth through internal mobility programs.
- Work perks include a Crypto.com Visa card upon joining.
Please note that the benefits package may vary based on regional requirements.
About Crypto.com
Established 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™. Committed to security, privacy, and compliance, Crypto.com aims to drive cryptocurrency adoption through innovation while empowering the next generation of creators, builders, and entrepreneurs.
Crypto.com promotes diversity and inclusion, welcoming candidates from various backgrounds, perspectives, and skills to enrich our team. Personal data shared by applicants will only be used for recruitment purposes. Kindly note that only shortlisted candidates will be contacted.
Skills Required
Сrypto.com
Website
Сrypto.comCompany size
Not specified
Location
United States
Description
Not specified
Status
SADR B
Looking for a Sales Partner / Co-founder (Tech Venture - Launch Phase)
Asia, USA +2
Asia, USA +2
Part time
Remote
We are officially launching! We have a solid technical team already in place, specialized in website and mobile app development, with an upcoming focus on Web3 solutions.
What makes Oferli unique is our core payment infrastructure: we operate on a 100% crypto payment system, providing a modern, borderless transaction experience for our clients.
We are opening our doors to a serious, driven Sales Partner who wants to build this foundation right alongside us from day one.
The Perks:
15% commission on every closed project, paid automatically in crypto upon client payment.
Be part of a pioneering tech venture introducing seamless 100% crypto payments to the market.
Total flexibility and co-founder status to scale the business together.
The Goal: Prospect, negotiate, and close deals for digital development services (local & international clients).
If you are a results-driven sales expert who wants to build a real venture with us, shoot me a DM.
What makes Oferli unique is our core payment infrastructure: we operate on a 100% crypto payment system, providing a modern, borderless transaction experience for our clients.
We are opening our doors to a serious, driven Sales Partner who wants to build this foundation right alongside us from day one.
The Perks:
15% commission on every closed project, paid automatically in crypto upon client payment.
Be part of a pioneering tech venture introducing seamless 100% crypto payments to the market.
Total flexibility and co-founder status to scale the business together.
The Goal: Prospect, negotiate, and close deals for digital development services (local & international clients).
If you are a results-driven sales expert who wants to build a real venture with us, shoot me a DM.
Payment in Crypto
SADR B
Founding Technical Partners for Oferli – Elite Web & Mobile Development Team🌐
Remote, USA
Remote, USA
Part time
Remote
I am Sadr, CEO of Oferli. We are building a high-performance, elite technical team, and I am looking for 5 to 10 dedicated founding technical partners to join me in this mission.
The Vision:
Oferli is a 100% decentralized ecosystem. While we are rooted in Web3, our expertise spans across professional web and mobile application development. We are not just another agency; we are crafting the next generation of digital solutions. Our goal is to set a new standard for excellence, transparency, and decentralization.
What I am looking for:
I am building a professional, senior-level "Elite Team." I am looking for partners who are truly passionate about the vision—not just short-term gains. By combining our individual expertise and portfolios, we will establish Oferli’s collective professional reputation.
Requirements:
Proven Expertise: You must be a senior-level professional. Please provide your portfolio showcasing your best work in web and mobile development.
Commitment: This is a founding partnership. We are looking for those who believe in the mission and are ready to tackle complex challenges together.
Professionalism: We operate with high standards. Communication and efficiency are key.
How We Work:
Collaboration: We use professional, secure channels for all communications. Qualified candidates will be contacted via email to be invited to our private workspace on Notion to align on our roadmap and launch our upcoming projects.
Decentralized Operations: We leverage Web3 tools for collaboration and compensation, maintaining a fully decentralized environment.
Growth: We are launching with a core team of at least 5 founding partners, scaling to 10, to deliver high-impact results for our clients.
Application Process:
If you are a senior professional ready to build a world-class, decentralized ecosystem, apply here on LaborX. Qualified candidates will be contacted via email for further professional vetting and onboarding.
Let’s build the future, together.
Sadr B
CEO, Oferli
The Vision:
Oferli is a 100% decentralized ecosystem. While we are rooted in Web3, our expertise spans across professional web and mobile application development. We are not just another agency; we are crafting the next generation of digital solutions. Our goal is to set a new standard for excellence, transparency, and decentralization.
What I am looking for:
I am building a professional, senior-level "Elite Team." I am looking for partners who are truly passionate about the vision—not just short-term gains. By combining our individual expertise and portfolios, we will establish Oferli’s collective professional reputation.
Requirements:
Proven Expertise: You must be a senior-level professional. Please provide your portfolio showcasing your best work in web and mobile development.
Commitment: This is a founding partnership. We are looking for those who believe in the mission and are ready to tackle complex challenges together.
Professionalism: We operate with high standards. Communication and efficiency are key.
How We Work:
Collaboration: We use professional, secure channels for all communications. Qualified candidates will be contacted via email to be invited to our private workspace on Notion to align on our roadmap and launch our upcoming projects.
Decentralized Operations: We leverage Web3 tools for collaboration and compensation, maintaining a fully decentralized environment.
Growth: We are launching with a core team of at least 5 founding partners, scaling to 10, to deliver high-impact results for our clients.
Application Process:
If you are a senior professional ready to build a world-class, decentralized ecosystem, apply here on LaborX. Qualified candidates will be contacted via email for further professional vetting and onboarding.
Let’s build the future, together.
Sadr B
CEO, Oferli
Payment in Crypto
Marcus Lindberg
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
Zignaly
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? 💥☠
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
futur pulse
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
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