Senior Software Engineer - HeightZero
BitGo is a top player in digital asset financial services, catering to institutional investors by offering liquidity, custody, and security solutions. Since its establishment in 2013, BitGo has been a trailblazer in the sector, introducing the multi-signature wallet and concentrating on institutional clients' needs. Engaged in both centralized and decentralized finance, BitGo delivers leading trading, lending, and borrowing services via its prime brokerage solutions. With the introduction of BitGo Trust Company in 2018, the first custodian tailored for digital assets storage, BitGo has been a stalwart in processing around 20% of global Bitcoin transactions and supporting over 1,000 coins and tokens. BitGo serves as the security backbone for more than 1500 institutional clients in 50 countries, including regulated entities, major cryptocurrency exchanges, and platforms. Additionally, BitGo has gained substantial backing from prominent firms like Goldman Sachs, Craft Ventures, and Digital Currency Group, among others. In 2023, BitGo acquired HeightZero, a technology platform offering investment opportunities in digital assets for financial institutions and services like token management for foundations and new digital assets.
The company is currently seeking a Senior Software Engineer to join the HeightZero team at the NY office (40 Wall Street).
Responsibilities:
- Design and construct robust and scalable APIs, libraries, and services to integrate blockchains and BitGo capabilities into HeightZero products effectively.
- Take charge of functionality and scalability features from research to implementation and deployment.
- Develop integration libraries and SDKs to connect seamlessly with our server and APIs.
- Provide clear documentation and expose functionality to UI, external developers, and internal tools.
- Collaborate closely with engineering teams and product managers to ensure alignment on technical requirements and maintain work quality.
- Offer mentorship and support to fellow engineers through code reviews and sharing best practices.
Skills & Experience:
BitGo values open communication, transparency, taking ownership, and high craftsmanship and looks for individuals who align with these principles.
Required:
- A minimum of 6 years in backend software development.
- Ability to work independently and thrive in a fast-paced environment.
- Exhibit discipline and ownership in tasks.
- Proficiency in server-side languages like TypeScript/Node.JS.
- Strong skills in unit and functional testing, debugging, and abstraction creation for complex systems.
- Experience with Git/GitHub, code review tools, and CI tools.
- Strong capability in algorithm design, problem-solving, and complexity analysis.
- Familiarity with design and implementation of different database types.
Preferred: Exposure to blockchain/crypto-security industry, knowledge and interest in cryptocurrencies and blockchain, experience with microservices and service-oriented architectures, familiarity with AWS Amplify, ELB, and EC2, and hands-on experience in building scalable distributed systems.
Why Join BitGo? BitGo's vision, innovation, passion, technical expertise, drive for delivery, collaboration, and execution sets it apart in disrupting the financial industry. By joining BitGo, you become part of a team that embodies values of responsibility, craftsmanship, and open communication, striving for excellence and innovation in transforming global financial markets.
Benefit highlights include competitive salary, bonus and stock options, comprehensive health insurance coverage, a 401k company match, paid parental leave, vacation, catered meals, computer equipment, and a motivating startup environment.
Pay Transparency Notice: Depending on seniority and location, the role offers an average base salary range from $165,000 to $210,000 USD . The total compensation also includes equity, an annual performance bonus, and outlined benefits.
Cryptocurrencies present a groundbreaking evolution in the financial services sector. Join the BitGo team and contribute to the revolution in the investment landscape.
🚀 Hiring Solana Developers – Pump.fun
Hi,
I’m reaching out from Valiant Solution LLC. We’re currently working with a U.S.-based client who is an experienced crypto professional and we’re looking for a skilled Solana developer to help build a platform similar to Pump.fun.
We already have a basic codebase from GitHub that the developer can start from, so the project will mainly involve customizing, improving, and completing the functionality rather than building everything from scratch.
Key requirements:
• Experience with Solana smart contracts (Rust / Anchor)
• Knowledge of token launch mechanics and bonding curves
• Experience with Solana Web3 integrations
• Ability to work with an existing codebase and extend it
If this sounds interesting, please reply with:
• Your Solana development experience
• Links to relevant projects or GitHub
• Your availability for a quick discussion
Looking forward to connecting.
Best regards,
Valiant Solution LLC
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.