This job has expired

This job posting is no longer active and is not accepting applications. Explore similar roles below!

JustAnswer
Posted 2mo ago

Senior Full-stack Engineer (React+.Net)

JustAnswer
Ukraine
RemoteFull Time
Responsibilities
  • Design components
  • Develop backend services
  • Prototype solutions
Requirements
  • 5+ years in full-stack development
  • React.js with state management
  • .NET/C#
  • Testing with Jest/NUnit/Playwright
  • HTML/CSS/JavaScript/TypeScript
  • SQL Server/MySQL
  • SOA/web services
  • English proficiency
  • Leadership and mentoring
Technical tools mentioned
ReactReduxContext API.NETC#JestNUnitPlaywrightHTMLCSSTypeScriptSQL

Job description

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.
#LI-Remote

About JustAnswer

Connecting people with verified professional experts for immediate help.

Year founded
2003
Employees
1000
Organization type
Private
Latest investment
Raised $25.00M Series A (2012) — led by Charles Schwab, Glynn Capital
Headquarters
US

Similar jobs

Full Stack Developer roles
19h
Save
Mark Applied
Hide
Full-Stack Engineer
Ukraine
RemoteFull Time
INFUSE
INFUSE: Provides B2B lead generation and data-driven marketing services.
4+ YOESenior engineer with 4–5+ years in product development, strong Node.js, Python, TypeScript, LLM integration, PostgreSQL, vector databases, distributed systems, Docker, and AWS experience.
Vue 3, React, TypeScript, Node.js, NestJS, Python, FastAPI, OpenAI, Anthropic, Google, PostgreSQL, ClickHouse, Qdrant, Kafka, Redis, S3, MinIO, Jest, Supertest, PyTest, Claude Code, Cursor, Langfuse, Docker, RabbitMQ, Kubernetes, AWS, Jira, Confluence
20h
Save
Mark Applied
Hide
Middle Full Stack Developer (Java/React) – Tieto Tech Consulting (m/f/d)
Warsaw or Ukraine
HybridFull Time
Tietoevry
TietoevryNasdaq Helsinki: TIETO: A digital services and software providing IT solutions.
3+ YOERequires 3+ years of Java development, Java 17+, Spring, Spring Boot, Hibernate, JPA, JavaScript, React.js, API development, SQL, databases, testing, Agile/Scrum, and English communication.
Java, Spring, Spring Boot, Hibernate, JPA, JavaScript, React.js, SQL, Agile, Scrum, GitHub Copilot, Claude Code, ChatGPT, AWS, Azure, Google Cloud, TDD, CAMARA, GSMA
1d
Save
Mark Applied
Hide
Full-Stack Developer (.NET/Angular)
Ukraine
RemoteFull Time
Creatio
Creatio: Sells no-code software for CRM and workflow automation.
5+ YOERequires 5+ years of programming experience with .NET and Angular, strong C# and web API skills, JavaScript/TypeScript, Git or SVN, testing tools, databases, and upper-intermediate English.
.NET, Angular, C#, ASP.NET MVC, ASP.NET Core, Web APIs, RxJS, JavaScript, TypeScript, DOM, CSS, SASS, Git, SVN, NUnit, Mock, Postman, MS SQL Server, PostgreSQL, Oracle, Creatio
3d
Save
Mark Applied
Hide
.NET and Angular Developer
Kyiv or Ukraine
RemoteFull Time
Commit
Commit: End-to-end software, cloud, and cybersecurity consulting and development.
Requires Angular 16, Ionic, .NET 5, MS SQL, backend architecture, production systems experience, English B2+, and Claude/agentic development experience. RabbitMQ, AWS, and Python are advantageous.
Angular 16, Ionic, .NET 5, MS SQL, Agentic.ai, Jira, Claude, RabbitMQ, AWS, Python
4d
Save
Mark Applied
Hide
Senior Full-stack Engineer (backend-heavy)
Barcelona or Kyiv
HybridFull Time
Preply
Preply: Online platform connecting language learners with live human tutors.
Backend-heavy full-stack expertise, deep hands-on Agentic AI experience, scalable systems and architecture skills, technical leadership, product impact, collaboration, English B2+, and on-call participation.
Python, Django, React, TypeScript, Java, Spring, Node.js, Ruby on Rails, Scala, Play, PHP, Go, CI/CD, A/B testing, monitoring, metrics, Agentic AI
4d
Save
Mark Applied
Hide
Senior Full-Stack Engineer (Vue+Node.JS)
Poland or Europe or Ukraine
RemoteFull Time
N-iX
N-iX: Provides software engineering and digital transformation services to global enterprises.
Requires TypeScript, JavaScript, Vue.js, Node.js, Nest.js, database, REST API, version control, problem-solving, communication, and agile collaboration experience.
TypeScript, JavaScript, Vue.js, Node.js, Nest.js, PostgreSQL, MySQL, MongoDB, RESTful API, Azure, Docker, Kubernetes, Git, GitHub, GitLab, Bitbucket
1w
Save
Mark Applied
Hide
Senior Full Stack Engineer (Node.js/React)
Ukraine
RemoteFull Time
Innovecs
Innovecs: Global digital services providing custom software engineering solutions.
8+ YOERequires 8+ years building web applications, expert Node.js and TypeScript knowledge, Azure, PostgreSQL, and React experience, strong communication, product sensibility, and full-stack feature ownership.
React, TypeScript, Node.js, PostgreSQL, Azure, Docker, Microsoft Azure DevOps, GitHub Actions, DataDog, Jira, Slack, Notion, CDK, DynamoDB, Lambda, AppSync, SQS, SNS
1w
Save
Mark Applied
Hide
Senior Full-Stack Engineer (back - Shani)
Kyiv, Kyiv City, Ukraine
RemoteFull Time
Titan
Titan: Provides a no-code digital experience platform for Salesforce.
5+ YOE5+ years in backend and frontend development with React, Node.js, and APIs; proficiency in HTML, CSS, JavaScript, SQL, and MongoDB; strong communication skills in English.
React, Node.js, AWS, TypeScript, HTML, CSS, JavaScript, SQL, MongoDB, DOM, Zoom
This job has expired