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EPAM Systems
7 views 4 weeks ago

Lead Backend Developer - Blockchain Platform

Open 128d RemoteEuropeContractLead Licensed UK sponsor — This employer appears on the GOV.UK register of licensed sponsors for the Skilled Worker and related work routes. The licence belongs to the employer and is not a commitment to sponsor this role.Licensed NL sponsor — This employer appears on the IND public register of recognised sponsors for work and highly skilled migrants. The recognition belongs to the employer and is not a commitment to sponsor this role.Canada LMIA employer — This employer was issued a positive Labour Market Impact Assessment by Employment and Social Development Canada in the last four quarters, through the High Wage, Global Talent or Permanent Resident streams. The approval belongs to the employer and is not a commitment to sponsor this role.Ireland permit employer — This employer was issued Irish employment permits this year or in the two years before, per the Department of Enterprise, Tourism and Employment. The permits belong to the employer and are not a commitment to sponsor this role.
Serbia

We are looking for an experienced Lead Backend Developer to drive the development of enterprise-grade backend services for a comprehensive blockchain platform. You'll lead backend development across three key tracks:…

API Api Design Blockchain Cryptocurrency Ethereum +10 skills
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Framework Ventures
8 views 4 weeks ago

Staff Backend Engineer – DeFi Vaults & Protocol Infra

Open 26d UKStaff
United Kingdom

Staff backend engineer at Aave Labs building the infrastructure behind new DeFi protocols and vault products in London. The role owns offchain systems — vault management, allocation solvers, and data pipelines — that interact with onchain components, emphasizing correctness, performance, and security of user funds.

Data Pipelines DeFi Vault
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Framework Ventures
6 views 4 weeks ago

Staff Backend Engineer, Vaults

Open 26d UKContractStaff
United Kingdom

Staff Backend Engineer at Aave Labs building backend infrastructure for new DeFi protocols and vault products — vault management and allocation solvers, high-throughput blockchain indexers, and performant APIs bridging onchain protocols and applications. Core stack is Rust (or C++/Go/Zig) with PostgreSQL.

API Blockchain ClickHouse C++ Data Ingestion +11 skills
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zero-hash
6 views 4 weeks ago

VP, Strategic Partnerships

Open 110d RemoteNorth AmericaC-level
United States

Leads partnerships with banks, fintechs, and payment companies to resell crypto trading, stablecoin payments, and tokenization services, building GTM strategies and commercial terms.

Blockchain Business Development Cryptocurrency Fintech Go-to-Market +1 skills
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DevBrother
14 views 4 weeks ago

Middle Project Manager (AI-native and Product-oriented)

Open 26d RemoteEuropeContractMiddle

Coordinates end-to-end delivery of software projects for a crypto/fintech client — running Scrum/Kanban rituals, managing scope and risks, and aligning cross-functional engineering teams — while leveraging AI tools (Claude, ChatGPT, Cursor) to automate documentation and status tracking.

Acceptance Criteria Agile AI API Asana +13 skills
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Merkle Science
16 views 4 weeks ago

Software Engineer - Intern (Frontend)

Open 26d HybridAPACInternshipIntern
India

A 1-year frontend engineering internship (hybrid, 3 days/week in office) at Merkle Science in Bangalore, building React dashboards, investigation workflows, and compliance tooling for a blockchain transaction-monitoring product. Open to final-year IIT/NIT/IIIT students graduating in 2027.

AI Analytics API Blockchain Cryptocurrency +13 skills
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Helius
18 views 4 weeks ago

Platform Engineer, Infrastructure

Open 26d RemoteNorth America
United States

Platform engineer on Helius's Platform team automating its global bare-metal fleet: end-to-end server provisioning, standardized build/deploy tooling, and security roadmap items like SSO, secrets management, and least-privilege access. Core stack: Linux, PXE/IPMI, IaC (Ansible/Terraform), Python/Go/Bash.

Ansible AWS Bash Blockchain ClickHouse +15 skills
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Win Streak
3 views 4 weeks ago

Middle/Senior Media Buyer Google

Open 101d EuropeSenior
Poland

Media buyer at Win Streak, a 4+ year media-buying company in the crypto niche: launch, monitor and optimize Google ad campaigns across Tier 1-3 geos with large budgets, test new offers and scale spend. Pay is a high percentage tied to USD; work from the Warsaw office (11:00-18:00) or fully remote.
Mind Studios
13 views 4 weeks ago

Senior Go Engineer (Digital Asset Signing Infrastructure)

Open 27d RemoteEuropeSenior

Senior Go engineer taking primary ownership of a security-critical Virtual Signer that orchestrates MPC/threshold signing between server and mobile participants for digital assets. Day-to-day: hardening reliability (race conditions, interrupted sessions), improving tests and observability, and maintaining Go SDKs/bindings with Swift, Kotlin, and JS/TS on Linux/Docker.

API Authentication Blockchain CI/CD Cryptography +17 skills
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Prometheum Capital LLC
11 views 4 weeks ago

Blockchain Engineer 2

Open 27d RemoteNorth America

Blockchain Engineer at Prometheum Capital builds and maintains secure, optimized blockchain applications, owning epics end to end from story writing and estimation through delivery, release, and production support. Core tech includes Bitcoin, Ethereum, blockchain cryptography, and AI coding tools.

AI Blockchain Cryptography Ethereum Test Automation
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Crypto.com
14 views 4 weeks ago

Senior/Principal Product Manager, User Onboarding & Growth (Crypto.com App)

Open 26d On-siteAPACPrincipal
Australia

Senior/Principal Product Manager owning customer onboarding and growth for the Crypto.com App — covering KYC/account opening, activation, referral mechanics, new-product onboarding and trading journeys. Day to day: running the onboarding roadmap independently with engineers, designers and analysts in a regulated consumer crypto platform.

Customer Onboarding Fintech
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Kyrrex
22 views 4 weeks ago

Junior QA Manual Engineer

Open 27d RemoteEuropeJunior

Junior QA Manual Engineer at Kyrrex will manually test the company's fintech/crypto products across web, backend, and mobile — writing test cases, checklists, and bug reports, and testing APIs and databases. Key tools include Postman, Swagger, and JIRA; remote work with a flexible schedule in Europe.

API CSS Fintech HTML Jira +3 skills
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OpenZeppelin
42 views 4 weeks ago

Senior Blockchain Security Developer (Canton)

Open 130d RemoteWorldwideContractSenior

Lead the design and implementation of privacy-preserving DeFi primitives and audited smart-contract libraries for the Canton Network using Daml, while collaborating with auditors and clients to ship secure, production-grade protocols.

AI API Api Design Blockchain Claude Code +8 skills
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Payward, Inc.
54 views 4 weeks ago

Senior Software Engineer – Agent Systems

Open 27d RemoteAfrica, Europe, LATAM, MENA, North America, UKSenior Ireland permit employer — This employer was issued Irish employment permits this year or in the two years before, per the Department of Enterprise, Tourism and Employment. The permits belong to the employer and are not a commitment to sponsor this role.
+17

Senior engineer at Kraken (Payward) building AI-powered agent systems for internal workflows and decisions — designing inference pipelines, productionizing agent behaviors, and architecting reliable backend services. Remote role across many countries; requires 5+ years shipping production software plus AI/LLM experience.

AI API Automation Data Modeling Distributed Systems +3 skills
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Payward, Inc.
6 views 4 weeks ago

Senior Software Engineer – Agent Systems

Open 27d RemoteNorth AmericaSenior Ireland permit employer — This employer was issued Irish employment permits this year or in the two years before, per the Department of Enterprise, Tourism and Employment. The permits belong to the employer and are not a commitment to sponsor this role.
United States

Senior engineer at Payward (Kraken) building AI-powered agent systems for internal workflows and decision paths: designing inference pipelines, prototyping and productionizing agent behaviors, and architecting backend services that integrate internal APIs and data sources with safe, observable execution.

AI API Automation Data Modeling Distributed Systems +3 skills
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Payward, Inc.
18 views 4 weeks ago

Data Analyst, Regulatory Analytics and Reporting

Open 27d RemoteEurope, LATAM, North America, UK Ireland permit employer — This employer was issued Irish employment permits this year or in the two years before, per the Department of Enterprise, Tourism and Employment. The permits belong to the employer and are not a commitment to sponsor this role.
+5

Remote (US) data analyst role at Kraken's parent company Payward, focused on regulatory and compliance analytics: building datasets, pipelines, dashboards, and audit-ready reports while automating compliance workflows. Core stack includes SQL, Python (pandas, matplotlib, plotly), dbt, Airflow, and BI tools like QuickSight, Power BI, or Superset.

Airflow Data Modeling Data Pipelines Data Quality dbt +9 skills
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iCapital Network
14 views 4 weeks ago

Distributed Ledger Technology Product Manager - Assistant Vice President / Vice President

Open 117d North AmericaFull-timeC-level H-1B sponsor history — This employer has had H-1B petitions approved by USCIS in the last five fiscal years, per the USCIS H-1B Employer Data Hub. The approval belongs to the employer and is not a commitment to sponsor this role.
United States

Product Manager leading the Distributed Ledger Technology platform, defining APIs, data models, and integrations for Alternative Investment workflows in a fintech/crypto environment.

Agile API Data Engineering Fintech SQL +1 skills
140K – 200K $
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iCapital Network
11 views 4 weeks ago

Backend Engineer, Blockchain - Assistant Vice President

Open 134d North AmericaFull-time H-1B sponsor history — This employer has had H-1B petitions approved by USCIS in the last five fiscal years, per the USCIS H-1B Employer Data Hub. The approval belongs to the employer and is not a commitment to sponsor this role.
United States

Builds a private blockchain ledger using DAML/Canton and Python FastAPI to streamline private-market investments for advisors and high-net-worth clients.

API AWS Blockchain Cloud FastAPI +6 skills
120K – 145K $
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INC4
12 views 4 weeks ago

Business Development Manager (B2B, Blockchain + AI)

Open 53d RemoteEurope

INC4, a blockchain/AI development services company, seeks a B2B Business Development Manager to source and qualify new clients in Western markets. Day to day: personal outreach, referral networking, screening calls (need/budget/timeline), CRM upkeep, and weekly funnel reporting, then passing qualified leads to the CEO to close.

AI Blockchain CRM Fintech Web3
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P2P
8 views 4 weeks ago

Senior Web3 Onchain Data Engineer

Open 27d APACSenior
Singapore

Senior engineer joining OKX's team building core onchain data infrastructure for its Wallet, DEX, Explorer and risk products. Day-to-day work spans heterogeneous blockchains, large-scale and real-time data processing under high concurrency, with backend engineering plus AI-enabled automation.