Senior Full Stack Software Engineer - Height Zero
BitGo is a prominent provider of digital asset financial services, catering primarily to institutional investors by offering solutions in liquidity, custody, and security. Established in 2013, BitGo is recognized for pioneering the multi-signature wallet and its dedicated focus on serving institutional clients in the digital asset space. Active in both centralized and decentralized finance sectors, BitGo leads in the provision of trading, lending, and borrowing services through its prime brokerage offerings. Additionally, BitGo acts as the custodian for WBTC, a globally prominent stablecoin for Bitcoin. In 2020, BitGo introduced its BitGo Portfolio and Tax services, delivering a comprehensive digital asset solution to its clients. Notably, in 2018, BitGo created the BitGo Trust Company, the first qualified custodian focused on safeguarding digital assets. With its significant role in processing approximately 20% of worldwide Bitcoin transactions and supporting over 1,000 coins and tokens, BitGo serves as the security and operational backbone for over 1500 institutional clients across 50 countries, including regulated entities and leading cryptocurrency exchanges. Supported by key investors such as Goldman Sachs, Craft Ventures, Digital Currency Group, and several others, BitGo plays a central role in transforming the financial landscape with its technological innovations.
BitGo is currently seeking a Senior Software Engineer to join its HeightZero team. The team operates from the Palo Alto office on Wednesdays with the flexibility for remote work during the rest of the week.
Key Responsibilities:
- Design and develop robust APIs, libraries, and services that integrate blockchains and BitGo functionalities into the HeightZero products.
- Lead the enhancement of functionality and scalability, encompassing research, implementation, and deployment phases.
- Develop integration libraries and SDKs for seamless interaction with servers and APIs.
- Document and present functionalities for user interface, third-party developers, and internal/external tools.
- Collaborate closely with engineering teams and product managers to ensure alignment on technical requirements and work quality.
- Provide mentorship to peers within the engineering team through code reviews and best practice education.
Requirements:
- Minimum of 6 years of experience in full-stack software development.
- Ability to work independently in a dynamic environment.
- Strong competency in React.js, Node.js, and TypeScript.
- Proficient in UI/UX design principles.
- Skilled in unit/functional testing and debugging.
- Experience with Git, GitHub, CI tools, and branching methodologies.
- Proficient in algorithm design, problem-solving, and complexity analysis.
- Expertise in designing and implementing various database types.
Preferred Qualifications:
- Knowledge and experience in the blockchain and/or security industry.
- Interest and understanding of cryptocurrencies and blockchain technology.
- Experience with microservices and service-oriented architectures.
- Familiarity with AWS Amplify, ELB, and EC2 services.
- Real-world experience in building scalable distributed systems.
Advantages of Joining BitGo:
By being part of BitGo, you can contribute to the transformation of the financial markets and become part of a talented team dedicated to excellence and embodying core values of ownership, craftsmanship, and transparent communication. Benefits of working with BitGo include competitive salary, stock options, health insurance coverage, 401k company match, parental leave, generous vacation time, complimentary commute passes, meals, and snacks, customizable work equipment, and an engaging startup environment.
Candidates for this role are offered an annual compensation averaging between $165,000 - $210,000 USD base salary, along with equity, a performance bonus, and the described benefits based on location and level within the organization.
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Technical Cofounder – Mobile App Lead (Equity Role)
Equity + Leadership Role | Remote | Africa-focused
We’re building something bold — a platform designed to empower everyday people through real-world commerce and daily utility. The concept is built, the community is growing, and the brand is already in motion. Now, we’re ready to build the MVP.
We’re looking for a technical cofounder — someone with the skill to build and the vision to lead.
What You’ll Own:
• Lead the mobile app development (Android-first; iOS optional for now)
• Build core features: user registration, listings, wallet logic, escrow integration, and payments
• Collaborate on product direction and tech decisions
• Scale with the company as a core part of the founding team
Ideal Experience:
• You’ve built marketplace-style or P2P mobile apps before
• You’re comfortable with payment APIs like Paystack, Flutterwave, or others
• You understand how to work with wallets, escrow flows, and multi-user platforms
• You’re not just a builder — you want to grow with a brand and own a meaningful slice of it
Your Role Is Not Freelance.
This is a cofounder opportunity — you’ll help shape the product, tech stack, and long-term vision. You’ll receive equity and work closely with the founding team to build a scalable African-first product.
Venture Fellow (Part-Time, Remote)
Iron Key Capital is an investment firm specializing in liquid and venture opportunities in the crypto space. We invest in pre-seed and seed-stage Web3 startups focused on enterprise adoption of utility-driven digital assets. Additionally, we operate a blockchain innovation lab and incubate startups within the Web3 infrastructure sector. Backed by 200+ LPs globally, Iron Key deploys over $1M annually.
Role Overview:
The Venture Fellow program is an 8-week, part-time, remote opportunity designed for individuals eager to develop their skills in venture capital and angel investing. Fellows will gain hands-on experience in early-stage investing, including deal sourcing, due diligence, and pitching investment opportunities.
This program is ideal for aspiring investors, founders, or professionals exploring a career shift into venture capital. Fellows will work closely with seasoned venture capitalists and gain access to Iron Key’s investor community to learn best practices in the field.
Key Responsibilities:
Identify and evaluate early-stage investment opportunities in the Web3 ecosystem.
Conduct market research and due diligence on potential investments.
Collaborate with the Iron Key team on deal sourcing and portfolio management.
Engage with investors and team members to develop investment strategies.
Contribute to thought leadership on topics related to venture capital and Web3 innovation.
Qualifications:
Strong analytical and problem-solving skills to evaluate investment opportunities.
Excellent communication and interpersonal skills for engaging with team members and stakeholders.
Experience in Web3, AI, or related technologies is preferred.
Involvement in startups, entrepreneurial ecosystems, or Web3 communities is a plus.
Aspiring to transition into venture capital or professionalize angel investing skills.
Bonus: Previous experience as a founder or working within early-stage startups.
Program Details:
Duration: 8 weeks (part-time)
Location: Remote
Compensation: Competitive, based on experience
How to Apply:
Submit your application through this link:
https://airtable.com/appfCDlkorF5FL3VZ/pagnjuRX1A7gZjBGc/form
Additional Information:
This program is designed to take the guesswork out of breaking into venture capital or professionalizing angel investing. Successful Fellows may have opportunities to advance into Venture Partner or Core Contributor roles at Iron Key.
Founder Fellow
📍 Remote | 3-Month Contract
🚀 About Iron Key & Iron Key Capital
Iron Key, backed by Iron Key Capital, is a venture community and investment firm focused on liquid and venture opportunities in crypto, Web3, and AI. Our mission is to invest in and support Pre-Seed and Seed-stage startups, equipping founders and investors with the tools and knowledge they need to succeed.
We operate a blockchain innovation lab and incubate startups in venture infrastructure, fintech, IP ownership, and application development. Iron Key Capital is backed by 200+ global LPs, deploying $1M+ annually into emerging opportunities.
📢 The Opportunity: Entrepreneur in Residence (EIR)
We are seeking a technical co-founder or EIR to help bring a newly incubated venture infrastructure product to market. This is a 3-month remote contract role, ideal for builders with Web3 and AI experience who want to launch a company with hands-on support.
Iron Key has developed proprietary AI tools for internal workflows and is exploring opportunities to externalize these as software-based consulting services or standalone software products. As an EIR, you’ll play a critical role in shaping, launching, and scaling these innovations.
🔹 Key Responsibilities
Lead Startup Development – Take an incubated idea from concept to market launch.
Drive Innovation – Bring your own venture idea or work on an existing Iron Key product.
Strategic Execution – Develop and implement growth strategies.
Hands-on AI & Web3 Work – Build and iterate on cutting-edge solutions in AI and blockchain.
Leverage Resources – Work alongside investors, advisors, and a global network to accelerate your startup.
🎯 What We’re Looking For
Proven entrepreneurial experience – Ideally, you’ve built a startup before (even if it failed).
Deep Web3 or AI expertise – Hands-on experience in AI, blockchain, or fintech is a must.
Strong problem-solving mindset – Ability to pivot, adapt, and execute in fast-changing environments.
Leadership & Vision – You’re a self-starter who can drive a business forward.
🔥 Why Join Iron Key?
Founder-Centric Program – Hands-on support to launch a company.
Unmatched Network – Access to top investors, mentors, and builders in crypto and AI.
Long-Term Value – Lifetime membership in the Iron Key community & alumni network.
Fundraising Support – Get exposure to global investors and funding opportunities.
📩 Apply Now
If you're ready to build and scale a new venture, apply here:
👉 https://airtable.com/appfCDlkorF5FL3VZ/paggWhwbIDwnmlzlK/form