The Arbitrum Foundation is a organization located in the Cayman Islands focused on advancing and supporting the Arbitrum ecosystem. This includes developing Arbitrum One, an Optimistic Rollup technology that enhances app scalability, cost-efficiency, and Ethereum security, as well as Arbitrum Nova, designed for low-cost fees suited for Social and Gaming applications.
The organization holds a prominent position in the Ethereum scaling solutions market, boasting a significant share and hosting a multitude of apps along with holding over 50% of all rollup liquidity.
Responsibilities:
Collaborate with the Head of Operations on various cross-functional projects and special assignments
Support vendor management and handle tasks pertaining to finance, legal, and HR
Contribute to policy and procedure development and implementation
Foster team communication and coordination
Assist in the enhancement of operational processes to drive efficiency
Qualifications:
Minimum of two years of relevant experience
Team-oriented individual comfortable in a dynamic and rapidly evolving setting
Possess high empathy and strong business acumen
Demonstrated track record of navigating complex projects successfully
Proficient in data analysis and numerical reasoning
At the Arbitrum Foundation, we prioritize diversity, equity, inclusion, and a sense of belonging for all employees. We are dedicated to cultivating a supportive and inclusive workplace where every individual is respected and provided an equal chance to excel. We strongly encourage individuals from all backgrounds to apply and become part of our team.
Choose trusted tablet repair services in Dubai. They offer quick, reliable, and affordable repairs. Our repair specialists handle all major tablet brands. They fix both hardware and software issues quickly. We focus on delivering quality workmanship, transparent pricing, and same-day repair whenever possible. Call us at 04 586 4033 to book your repair. Get reliable help from our skilled team.
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
- 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.
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? 💥☠
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
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.