Senior Full-stack Engineer (React+.Net)
Justanswer
Software Engineering
Ukraine
About Us
Pearl is AI for professional services at global scale, combining advanced AI with verified human expertise to deliver help that is accurate, accountable, and fast. Since 2003, our network has connected millions of customers with licensed professionals across 196 countries, making real expertise available anytime, anywhere.
Our Values
- Data driven: Data decides, not egos
- Courageous: We take risks and challenge the status quo
- Innovative: We're constantly learning, creating, and adapting
- Lean: We focus on customers, using lean testing to learn how to serve them best
- Humble: Past success is not a guarantee of future success
About the Role
As a Senior Full Stack Developer, you will play a key role in building and maintaining the platform that delivers Pearl's AI + Human verification capabilities — providing accuracy beyond standard LLM-based solutions for our enterprise partners.
You'll work across frontend, backend, database, and infrastructure, and contribute to investigations and architectural exploration. The team operates at the technological edge of the company, often solving problems with no pre-existing patterns, giving you significant autonomy and creative freedom.
What You'll Do
- Design, develop, and maintain the Pearl Enterprise platform across frontend, backend, and database layers.
- Build and extend UI components, API integrations, and backend services powering enterprise partner experiences.
- Investigate and prototype novel solutions, evaluate technical options, and document architectural decisions.
- Actively leverage AI-assisted development tools for code generation, refactoring, testing, debugging, and documentation.
- Own quality end-to-end by writing automated tests (unit, integration, system) at the level needed to ensure reliability.
- Contribute to CI/CD pipelines, scripting, and infrastructure as needed.
- Participate in code reviews and maintain high engineering standards.
- Clarify requirements and translate business needs into technical solutions.
What We’re Looking For
- Minimum of 5 years of professional experience in full-stack development.
- Extensive experience with React.js, including state management (Redux, Context API) and component-based architecture.
- Proficiency in .NET frameworks, C#, and data access technologies.
- Familiarity with unit and integration testing using Jest, NUnit, Playwright, or React Testing Library.
- Strong knowledge of front-end technologies such as HTML5, CSS3, JavaScript, and TypeScript.
- Familiarity with database systems such as SQL Server or MySQL.
- Strong knowledge of design and architectural patterns, SOA design, and web service development.
- Strong understanding of development processes.
- Experience with LLMs / Generative AI tools (e.g., OpenAI, Copilot, Cursor).
- Experience with web page performance optimization and measurement is a plus.
- Degree in Computer Science, a related discipline, or equivalent work experience.
- Upper-intermediate level of English.
- Excellent problem-solving and analytical skills, with keen attention to detail.
- Strong communication and interpersonal skills, with the ability to work effectively in a team-oriented environment.
- Ability to manage multiple tasks and prioritize effectively in a fast-paced environment.
- Leadership abilities, with a track record of mentoring and guiding junior developers.
Our Commitment to an Inclusive Workplace
We welcome people from all backgrounds who seek the opportunity to help build a future where professional services are readily available to all. If you have curiosity, passion, and a collaborative spirit, come work with us. Pearl is committed to an inclusive workplace. Pearl is an equal opportunity employer and does not discriminate on the basis of race, national origin, gender, gender identity, sexual orientation, disability, age, or other legally protected status.
AI Disclosure & Informed Consent
Artificial intelligence (AI) technology may be used during the hiring process to record, transcribe, analyze, and rank interview responses. By submitting your application and participating in the interview process, you acknowledge and consent to the use of AI technology in the hiring process. For more information see our AI Disclosure and Consent Policy.
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