Tech jobs

New North AmericaContract

Project Manager - Scheduling

Confluence Corrective Action EVM Fiber Jira +5 skills

Onsite project manager in Orlando, FL developing and managing Integrated Master Schedules (IMS) in MS Project for CACI's space-based optical communications programs, including critical path analysis, schedule risk assessments, EVM support, and program reporting.

78K – 164K $

reflexiveconcepts.catsone.com

System Engineer III

New North America

AWS Confluence Data Pipelines Docker Elasticsearch +13 skills

Watch Desk Engineer monitoring and maintaining DoD mission systems 24x7: tracking health, performance, and data pipelines, handling incidents and recovery, plus producing systems engineering docs (DoDAF, requirements, interfaces). Core stack: Linux, Docker, Kubernetes, AWS, NiFi, Elasticsearch, and monitoring tools like Grafana/Prometheus.

akina.catsone.com

New North AmericaContract

System Engineer 3 - (Systems Engineering, DoDAF, SOA)

Authentication Cryptography EVM Requirements Elicitation SOA +1 skills

Senior systems engineer (SE3) supporting a government/DoD program in Annapolis Junction, MD: elicits and manages requirements, develops system architecture and design documentation using DoDAF and SOA, and handles risk, verification, configuration control, and C&A support for complex hardware/software systems. Requires TS/SCI clearance with polygraph.

232K – 284K $

Hyphen Connect

API Api Design Blockchain Cloud DeFi +11 skills

Senior Backend Engineer

New APACContractSenior

China

Senior backend engineer in Shenzhen building high-concurrency, low-latency distributed microservices for a Layer 1 blockchain client spanning DeFi, cross-chain, and RWA. Core stack: Java with Spring Boot/Cloud, Kafka/RocketMQ, Redis Cluster, MySQL, plus EVM/Sui/Solana on-chain integration.

Hyphen Connect

API Cloud DeFi EVM OAuth +3 skills

DeFi Product Owner

New Contract

Technical product owner for DeFi at Hyphen Connect: translates on-chain/EVM protocol mechanics into product requirements and ships consumer-facing Web3 apps (wallets, swaps, staking, lending, yield). Requires 3–5+ years of DeFi product experience, a React/Node engineering grounding, and fluency in Chinese and English.

Hyphen Connect

Blockchain Developer Advocacy Developer Experience EVM Rust +4 skills

Developer Relations Engineer/Lead (DevRel)

New Lead

DevRel engineer/lead for a client building a next-generation Layer 1 blockchain (parallel EVM, tokenized real-world assets). You support developers building on the network, write docs and tutorials, advocate at conferences and hackathons, and relay developer feedback to engineering. Requires Solidity plus a WASM language like Rust.

Web3 Full-Stack Developer (React, Node, relocation to Paris)

Agile Blockchain DeFi DevOps EVM +10 skills

Sweden

Full-stack developer at DeFi startup ZeroDays, building the MVP of a decentralized peer-to-peer options trading platform in Paris alongside the co-founders. Core stack is React, Node.js, and TypeScript with blockchain skills (EVM, Solidity); role involves relocation to Paris with assistance under a B2B contractor arrangement.

Parisian Full-Stack Developer with Expertise in DeFi, React, and Node

Agile Blockchain DeFi DevOps Ethereum +11 skills

Full-stack developer at ZeroDays, a Polychain-backed DeFi startup building a peer-to-peer decentralized options network. You'll lead the MVP web app (React, Node.js, TypeScript, Next.js) alongside MIT/Jump Trading co-founders, onsite in Saint-Cloud/Paris under a B2B contractor arrangement.

Node.js and React Developer specializing in DeFi Solutions (Paris, Office)

Agile Blockchain DeFi DevOps Ethereum +12 skills

Full-stack web developer building the MVP web app for ZeroDays' peer-to-peer decentralized options trading network, working alongside MIT/Jump Trading-educated co-founders in the Paris office. Core stack: React, Node.js, TypeScript, Next.js, with Solana/EVM blockchain familiarity.

Ingénieur Blockchain Spécialisé Smart Contracts (Paris)

New Europe

Blockchain DeFi Ethereum EVM Smart Contracts +2 skills

Smart contract engineer at ZeroDays, a VC-backed (Polychain) DeFi startup in Paris building a peer-to-peer options trading platform. The role centers on designing and securing EVM smart contracts in Solidity, with 3+ years of smart contract development experience required and DeFi protocol expertise valued.

Full-Stack Web Developer (React, Node, Next, DeFi, Paris, office)

Agile Blockchain DeFi DevOps Ethereum +12 skills

Build the MVP web application for ZeroDays' peer-to-peer decentralized options (DeFi) network as a full-stack developer, onsite in Paris alongside the co-founders. Core stack: React, Node.js, TypeScript and Next.js, with blockchain experience across Solana/Ethereum and EVM smart contracts.

Blockchain DeFi EVM Firebase Next.js +6 skills

Full-Stack Web Developer (React, Node, Next, Paris, relocation)

New UKContract

United Kingdom

Full-stack developer at ZeroDays, a Polychain-backed startup building a decentralized options-trading network (DeFi) in Paris. Day-to-day work is React/Node.js/TypeScript (Next.js a bonus) on a peer-to-peer platform moving from EVM/Solidity to Solana; deep blockchain knowledge is required, Solana familiarity a major plus, and a relocation package is offered to international candidates.

DeFi Smart Contract Developer (Paris, office)

Blockchain DeFi EVM Smart Contracts Solana

Smart contract developer at ZeroDays, a startup building a decentralized options trading network (DeFi). The role focuses on designing and developing secure smart contracts for Solana/EVM chains, working on-site in Issy-les-Moulineaux near Paris with relocation support.

Agile Blockchain DeFi DevOps EVM +11 skills

DeFi Web Developer (React, Node, Paris, relocation)

New EuropeFull-time

Germany

Full-stack web developer building the MVP web application for ZeroDays, a venture-backed startup creating a decentralized options (DeFi) network on Solana, working directly with the co-founders in Paris. Core stack is React, Node.js, TypeScript, and Next.js, with a deep understanding of blockchain required.

Blockchain Developer Full-Stack (React, Node, EVM)

Blockchain DeFi EVM Next.js Node.js +5 skills

Switzerland

Full-stack blockchain developer for ZeroDays, a Polychain Capital-backed DeFi startup building a decentralized options trading network that is launching on Solana. Day-to-day work centers on platform development with React, Node.js, and TypeScript, with Solana or Solidity smart-contract skills a plus.

Sheepy

Blockchain EVM Fintech Go JSON +5 skills

Blockchain Integration Engineer / Backend Engineer (Go + PHP)

New CIS

Russia

Senior backend engineer (Go + PHP) integrating new L1/L2 blockchains into a crypto payment platform: address generation, inbound transaction scanning, confirmations/finality, fees, nonce and reorg handling, node/RPC management, and monitoring — fully remote with minimal meetings.

from 4K $ / mo

BlueCross BlueShield of South Carolina

New North AmericaContractSenior

IT Senior Project Manager

Agile AWS Cloud EVM Microsoft Project +3 skills

Senior IT project manager at CGS Administrators (a BlueCross BlueShield of South Carolina subsidiary) working on-site in Nashville, coordinating Medicare-related IT projects end to end — planning, budgeting, risk, resourcing, status reporting, and stakeholder communications. Core tools include Microsoft Office and project management software.

Talently