Junior Solidity Developer (Smart Contract Development)
About Openmesh and Xnode
Today, a few large corporations control the majority of the world's data and IT infrastructure. This centralized control of data is detrimental to businesses and society as a whole. It leads to inequality, scandals, corruption, and even wars. Openmesh is a cutting-edge open-source cloud infrastructure and open data network that aims to store global data without the need for intermediaries. It is a significant player in the crypto and web3 ecosystem, covering approximately 80% of it. In the coming years, Openmesh plans to expand its data coverage to include public health and scientific research data.
Openmesh allows anyone to create their decentralized data cloud, enabling secure data sharing, cost reduction in deployment, and automation of setup. It is like the open data fabric of the internet, providing universal access and preventing interference from regulators, governments, corporations, or its creators.
Core Products
Our flagship product, Xnode, is a revolutionary platform that enables developers to build their decentralized data clouds quickly. It offers data connectivity, APIs, and analytics engines with significant cost reduction and time savings compared to traditional methods.
Pythia is a powerful analytics and query engine that transforms raw data into actionable insights for designing and deploying data products.
Unified APIs provide a single access point for all crypto and web3 data, available without any costs or setup fees.
Our vision
We aim to democratize data and address information asymmetry on a large scale. Quality and reliable data are essential for the proper functioning of the internet and society. Openmesh believes that access to unaltered information is a fundamental right and is committed to open-source principles.
The opportunity
Join us to experience groundbreaking innovations in Data, Cloud, Blockchain, AI, and Web3 Infrastructure. You will have access to our technology, hackathons, virtual conferences, mentoring sessions, R&D infrastructure, workshops, and the opportunity to work in person or remotely. Through on-the-job experience, you will develop problem-solving skills, gain exposure to teamwork, and learn to think like a professional. Successful candidates have the chance to receive a full-time offer and win cash prizes from our mini-hackathon series.
About the Role
As a Junior Solidity Developer, you will be at the forefront of smart contract development in the Xnode ecosystem. Your work includes designing and deploying secure and efficient smart contracts and integrating them into data analytics processes with Pythia. You will contribute to the development of one of the world's largest open data clouds and analytics engines.
Responsibilities
- Design and deploy smart contracts within the Xnode ecosystem, ensuring security and efficiency.
- Collaborate with the Pythia team to integrate smart contracts into the data analytics processes, enhancing decentralized applications.
- Provide technical support for decentralized applications relying on smart contracts.
- Conduct security audits on smart contracts to mitigate vulnerabilities.
- Explore and implement innovative solutions to enhance smart contract functionalities in the Xnode framework.
Qualifications
- Bachelor's degree in Computer Science or a related field.
- Proficiency in Solidity programming language.
- Understanding of blockchain fundamentals.
- Familiarity with Ethereum or other blockchain platforms.
- Strong problem-solving and debugging skills.
Why Join Us
- Lead a revolutionary product reshaping data management and accessibility.
- Collaborate with a global community of innovators in the decentralized space.
- Make a significant impact in promoting transparency, efficiency, and democratization of data worldwide.
- Enjoy a challenging and rewarding work environment along with competitive compensation and benefits.
How to Apply
Interested candidates should submit a resume and a cover letter illustrating their passion for decentralized technologies and future vision for Openmesh.
Junior/Mid Decentralized Infrastructure Engineer
Help build and scale decentralized infrastructure: contribute to compute networks, protocols, storage layers, and orchestration tools that power AI agents and open digital systems. You’ll write code, run tests, fix bugs, and ship real features fast.
Skills & Requirements:
1–3 years in blockchain infra, distributed systems, or high-scale compute (or strong personal projects)
Solid Python / Rust / Go skills
Interest in libp2p, IPFS, GPU orchestration, or decentralized compute
Quick learner who ships clean code and loves performance/cost challenges
Salary:
$110,000 – $165,000 USD base + meaningful equity (portfolio startup) + full benefits + Sirex carry
Description:
Sirex.vc doesn’t just invest — we plug strong builders straight into our portfolio companies.
This is your chance to work on the real infrastructure behind autonomous agents and the open digital economy. Full support from the Sirex team, fast growth, zero bureaucracy.
High risk. Zero apologies.
Senior Decentralized Infrastructure Engineer
Build and scale production-grade decentralized infrastructure: compute networks, protocols, storage layers, orchestration for AI workloads, and open-source primitives that power the next generation of agent systems.Skills &
Requirements:
4+ years in blockchain infra, distributed systems or high-scale compute
Deep experience with Rust / Go / C++ and protocols (libp2p, IPFS, custom consensus, GPU orchestration)
Bonus: self-hosted AI compute, decentralized training or edge inference
Ship fast, own uptime, love extreme performance and cost efficiency
Salary:
$175,000 – $255,000 USD base + big equity (portfolio startup) + full benefits + Sirex carry
Description:
Sirex.vc doesn’t just invest — we plug elite builders straight into our fastest portfolio companies.
This is your chance to build the actual rails for autonomous agents and open digital economy at scale. Zero bureaucracy, maximum leverage.
High risk. Zero apologies.
Web3 Fullstack Developer
Neonflick is a tech organization specializing in Web3 development.
We believe Web3 solutions are not as popular as they could be — mainly due to complexity. Our mission is to simplify the user experience and make decentralized technology more accessible and easy to use for everyone.
🚀 About the Role
We are looking for a Web3 Fullstack Developer who is passionate about decentralized technologies and excited to contribute to building meaningful Web3 products. You will work on developing new products, improving existing ones, and fixing bugs, all while proposing innovative ideas to enhance our platform.
🔹 Responsibilities
Develop functional and user-friendly Web3 products
Improve and optimize existing products and features
Identify and fix bugs or issues in the system
Propose and implement new ideas for product development
Collaborate with the team to ensure high-quality software delivery
🔹 Requirements
Strong interest in Web3 / blockchain / decentralized technologies
Fullstack development experience (frontend + backend)
Experience with smart contracts and decentralized frameworks is a plus
Problem-solving skills and attention to detail
Ability to work independently and proactively
🔹 What You Get
Early-stage involvement in a Web3 tech organization
Influence over product development and feature design
Opportunity to build experience and a portfolio in the Web3 space
Potential long-term collaboration and future compensation as the project grows
A chance to contribute to making Web3 simpler and more accessible
⚠️ Important
This is an unpaid position. We are looking for someone motivated by vision, learning, and long-term impact rather than immediate salary.
If you are passionate about Web3 and building meaningful decentralized products, we’d love to hear from you.
Junior AI Engineer
Join one of our fast-growing portfolio startups and help build simple AI features. You’ll work with large language models, create basic automations and chat tools, test ideas, fix small bugs, and integrate AI into everyday products.
Skills & Requirements:
0–2 years of experience (fresh graduates or self-taught welcome)
Basic Python knowledge
Interest in AI, LLMs or chatbots (personal projects are a big plus)
Quick learner who enjoys trying new things
Good English for team communication
Salary: $95,000 – $135,000 USD base + equity in the startup + full benefits
Description:
Sirex.vc not only invests — we actively help our portfolio companies hire great people. This Junior AI Engineer role is inside one of our AI-native startups. You’ll get real hands-on experience, learn from the best, and build things users actually use — all with full support from the Sirex team.
High risk. Zero apologies.
AI Agent Engineer
Join one of our high-conviction AI-native portfolio companies and build autonomous AI agents from the ground up. You’ll design agent architectures, implement tool-calling & memory systems, connect them to browsers/shell/APIs, run long-horizon tasks, and ship features that make the product feel alive and truly useful.
Skills & Requirements:
2–5 years building LLM-powered agents (LangGraph, CrewAI, ReAct, custom frameworks)
Strong Python skills + experience with tool calling, RAG, vector stores and evaluation
Bonus: familiarity with browser automation, self-hosted models or decentralized compute
Fast executor who loves shipping in ambiguity
Passion for agents that actually do real work (not just chat)
Salary: $160,000 – $230,000 USD base + meaningful equity (in the portfolio company) + full benefits + carry from Sirex network
Description:
Sirex.vc doesn’t only write checks — we actively help our portfolio companies recruit the best people on the planet. This AI Agent Engineer role is inside one of our fastest-moving startups building the next generation of autonomous agents. You’ll get direct support, intros, and operational help from the Sirex team while working on frontier technology that can change how the world uses AI.
High risk. Zero apologies.