Develop backend services in Go for blockchain infrastructure, including NFT marketplaces, smart wallets, and gaming systems.
Integrate with ZK Stack, Ethereum, and account abstraction protocols to build scalable Web3 services.
Design resilient microservices, APIs, and event scanners while ensuring high availability and performance.
Xsolla is a global commerce company that provides tools and services to help video game developers fund, distribute, market, and monetize their games. The company has helped over 1,500 game developers and fosters a supportive culture focused on employee well-being and professional growth.
Contribute as a freelance specialist to blockchain infrastructure and protocol projects aligned with your expertise.
Design, develop, test, and maintain production-grade blockchain systems and distributed networks.
Solve complex challenges in security, privacy, scalability, cryptography, and consensus protocols.
Jobgether is a talent network connecting experienced blockchain engineers with high-impact infrastructure projects across the decentralized web. It fosters a remote-first, self-directed culture with support from engineering leads and a vetted community of specialists.
Design and build systems for Corporate Actions and Security Master across global markets.
Ingest, normalize, and cross-verify security and event data from authoritative sources.
Build entitlement processing and ensure accurate propagation across books and customer-facing systems.
Alpaca is a US-headquartered leader in agent-first brokerage infrastructure, offering APIs for stocks, ETFs, options, crypto, and more across 40 countries. They are a global remote team of 400+ employees, backed by $400M in funding, focused on open source and diversity.
Design, develop, and maintain back-end components for internal and open-source cybersecurity projects.
Build REST and GraphQL APIs, command-line tools, and containerized services using Python, Go, and Docker.
Contribute to infrastructure automation and collaborate with teammates to solve complex technical problems.
SpecterOps develops internal and open-source cybersecurity projects such as Mythic and Ghostwriter for the security community. We are a small, transparent team that values autonomy, collaboration, and continuous improvement.
Build and maintain user interfaces using React and TypeScript.
Develop backend services and APIs in Go, consuming GraphQL via Apollo Client.
Ensure federal accessibility standards and collaborate across teams.
Oddball builds quality software for the federal space, aiming to improve daily lives of millions of people. It is a small company that values learning, growth, and making a big impact.
Own firmware and embedded solutions end-to-end, from customer problems to shipped features across device, backend, and cloud.
Drive technology choices and architectural patterns for intelligent video, voice AI, and computer vision at the edge.
Partner with hardware, backend, and product teams to scale Samsara's edge AI strategy and mentor engineers.
Samsara is the pioneer of the Connected Operations Cloud, enabling organizations to harness IoT data for safer and more efficient physical operations. A recently public company with over 2.3 million IoT devices deployed, it fosters a growth-minded, customer-focused culture with flexible remote work.
Design, build, and operate automations and access tools for secure developer workflows across multi-cloud environments.
Support multi-cloud access infrastructure spanning AWS, Azure, and GCP using Infrastructure as Code (Terraform) and maintain least-privilege IAM policies.
Participate in code reviews, follow policy-as-code frameworks, and contribute to observability and engineering health practices.
Twilio is a cloud communications platform that delivers innovative solutions to hundreds of thousands of businesses and empowers millions of developers to craft personalized customer experiences. It is a remote-first company with a strong culture of connection and global inclusion.
Architect, build, and maintain Go-based backend services and provider adapters for live pricing and availability.
Contribute to self-serve onboarding frameworks, GUI tooling, validation guardrails, and LLM-assisted integrations.
Own assigned adapter surfaces end-to-end with high availability, observability, and automated resiliency.
Inflect is a US-based advisory and marketplace that simplifies how companies buy and sell digital infrastructure such as datacenter, cloud, and network services. They are a mission-driven team focused on removing procurement friction and unlocking innovation for businesses.
Build and maintain the full-stack matching-to-transaction spine, including Go backend services and React/TypeScript frontend surfaces for Capacity Matching and the Inflect Gateway.
Evolve algorithmic matching, confidence scoring, and cost-optimization logic to satisfy precision and explainability requirements, while serving as backup owner for RouteFinder and Site Prover clusters.
Partner with data and lead-to-cash pods, deliver well-tested observable code, and conduct pull-request assessments under pod technical direction.
Inflect is a US-based advisory and marketplace that transforms how companies buy and sell digital infrastructure such as datacenter, cloud, and network services. The company is focused on removing friction from procurement processes so businesses can get what they need with the right deal terms.
Own the front-end architecture end to end for Wand's governance product, turning complex agent output and risk signals into clear, trustworthy interfaces.
Design and build review and triage flows for policy violations, compliance risks, and governance findings, making knowledge-graph relationships legible.
Work across the stack with TypeScript, Go, and Python, using AI coding tools like Claude Code as a core part of how you ship.
Wand turns AI into labor, building the world's first Agentic Labor Infrastructure that lets humans and AI agents operate together as a hybrid workforce. It is a small, remote-first, senior-heavy global team with backgrounds from DeepMind, Google, Amazon, and IBM, focused on delivering real customer value.