Full-stack JS/.NET developer (Security domain)

We are looking for a motivated software engineer to join our engineering team. In this role, you will work across our entire stack to build products that are changing how users interact with the web safely. This is a perfect opportunity for an experienced developer ready to take on greater ownership and work with a modern, specialized tech stack.

The Role

You will be an integral part of our agile team, contributing to everything from our browser extension logic to our backend data pipelines. You’ll be expected to write clean, maintainable code, participate in design discussions, and help us scale our security-focused solutions.

Responsibilities:

• Feature Development: Design and implement product features across the full stack (React, Node.js, and C#).
• Code Excellence: Contribute to and uphold our code quality standards through thorough testing and thoughtful peer reviews.
• Rapid Problem Solving: Debug complex issues and ship fixes quickly to maintain a seamless user experience.
• Collaborative Engineering: Partner with teammates to brainstorm and solve architectural challenges creatively.
• Codebase Evolution: Take ownership of extending and optimizing our existing codebase as we add new capabilities.

Qualifications

• Experience: 2–4 years of professional software development experience.
• Education: BS/BA in Computer Science or a related field, or equivalent practical experience.
• Core Stack: Proven proficiency in TypeScript, Node.js, and React. 
• C# / .NET: Familiarity with the .NET ecosystem for backend services.
• Databases: Experience working with SQL databases, ideally PostgreSQL.
• Cloud & Tools: Comfort working in AWS environments and familiarity with Git and Jira.
• Communication: Strong verbal and written communication skills with a collaborative mindset.
• Drive: Self-motivated and capable of hitting the ground running in a fast-paced environment.

Our Tech Stack

We lean into modern tools to build fast and stay secure:

TypeScript · Node.js · React · PostgreSQL · AWS · Plasmo · C#/.NET

​Nice to Have

If you have experience in any of the following, you'll have a head start:

• ​Browser Extensions: Experience building or maintaining extensions (especially using frameworks like Plasmo).
• ​​Cybersecurity Knowledge: Interest or experience in data loss prevention (DLP), DNS security, or credentials analysis.
• ​Startup Savvy: Experience working in a startup or a similarly fast-moving environment.
• Design Literacy: Familiarity with Figma to help translate designs into functional code.

🎁 We Offer

• Growth: Daily support for your technical and personal growth through mentoring and educational programs.
• Team Culture: A professional and friendly environment where help is always available.
• Medical Insurance in Ukraine and Multisport program in Poland.
• Offices in Ukraine (Kyiv, Kharkiv) and Poland (Wroclaw) or Remote.
• Paid vacation, sick leaves, and official holidays.
• Legal & Accounting services.
• The company provides all necessary equipment.
• English classes and Education reimbursement.