Full Stack Software Developer

• 4 or more years building and shipping production web applications, with genuine ownership on both the front end and the back end.
• Strong React and TypeScript, including modern state management, component architecture, and CSS competent enough to build an interface without a designer hovering.
• Strong server-side skills in Python, Node.js, or both, with production experience designing REST or GraphQL APIs.
• Solid relational database experience — PostgreSQL preferred — including schema design, query performance, and migrations.
• Experience with cloud infrastructure (AWS, GCP, or Azure), Docker, and CI/CD pipelines you configured yourself.
• Demonstrated AI-forward development practice: you integrate LLM APIs into real products, you use AI coding assistants as part of your daily loop, and you can articulate where they accelerate you and where they need a human.
• Security-minded engineering instincts and a working understanding of common web vulnerability classes and how to prevent them.
• Excellent asynchronous written communication and the self-direction to own outcomes across time zones without being managed day to day.
• Comfort operating in ambiguity in a constantly changing and evolving work environment where growth is non-stop.
• Willingness to learn the technical aspects of blockchain and cybersecurity.

• Web3 development experience — ethers.js or viem, wallet integrations, RPC providers, or Solidity and Rust smart contract familiarity.
• Experience building agentic systems, working with the Model Context Protocol, vector databases, or evaluation frameworks for LLM features.
• DevSecOps experience: infrastructure as code, secrets management, supply chain security, or automated security scanning in CI.
• Prior work at a cybersecurity, fintech, or crypto company, or on products handling sensitive customer data.
• Experience taking a product from zero to one on a small team.
• Open source contributions.
• Knowledgeable of the latest trends in Blockchain and DeFi.

Our mission is to provide value-add security services and products to the world’s most cutting edge technology firms and that starts with blockchain tech.

Founded in 2019, Halborn is an elite cyber security company focused on solving complex adversarial problems unique to the cryptocurrency and fintech industries.

From breaches and social engineering to stolen private keys and economic hacks, Halborn solves it.

Our clientele are the exclusive blockchain companies as well as new startups with high growth trajectories.

Halborn is a globally distributed team of 100+, looking to grow our elite team of white hat hackers, sales professionals, security engineers and DevSecOps specialists who value independence, want to make their own hours, work for themselves and have a passion for the ever evolving cryptocurrency industry.

Halborn Inc is an Equal Opportunity Employer. We do not discriminate based upon race, religion, color, national origin, sexual orientation, gender, gender identity, gender expression, transgender status, sexual stereotypes, age, education, status as a protected veteran, status as an individual with a disability, or other applicable legally protected characteristics and celebrates the diversity of its growing team.

We are unable to sponsor or take over sponsorship of employment Visas at this time.

Recruitment agencies and consultants may not submit resumes/CVs through this website or directly to managers.

Halborn does not accept unsolicited agency resumes, and will not pay fees to any third-party agency or company that does not have a signed agreement with Halborn Inc.