Senior Software Engineer - React
3Pillar
- Location
- Romania
- Job Type
- full-time
- Salary
- Unknown
- Posted
- August 2, 2025
Job Description
Key Responsibilities:
- Craft client code that is not just efficient but also performant, testable, scalable, secure, and of the highest quality.
- Provide accurate status tracking, reporting, and estimation using project methods and tools.
- Gather requirements, validate their understanding amongst the team, and create and maintain relevant technical documentation.
- Execute activities within the current methodology and uphold the highest quality standards.
- Foster collaboration with fellow engineers, designers, and managers to comprehend user pain points and iterate on solutions that drive client success.
- Take ownership of features or initiatives, from technical design to a successful launch.
Minimum Qualifications:
- A minimum of 3 years of experience/expertise in the following areas specified below:
- React, Typescript, npm/yarn, html, css
- Experience in engineering software systems of medium-to-large scope and complexity.
- Familiarity with Agile software development methodologies.
- Experience with Unit testing.
- Experience with git source control.
- Proficiency in the English language.
Additional Experience Desired:
- Experience with following frameworks MUI, Emotion css, redux, react query, react hook form
- Experience with Docker.
- Linux commands basics.
- Proficiency in Object-Oriented Programming (inheritance, polymorphism, classes, instances, properties).
- Understanding of Software Development Life Cycle (SDLC).
You will:
- Join an open source dedicated and distributed software development team.
- Work on popular and complex Databases Monitoring Web application.
- Code in Typescript, React.js and MUI, version code in GitHubAdd new features and maintain existing code and functionality.
- Have a strong voice in technical solutioning.
- Co-create, plan and track work in Jira.
What is it like working for 3Pillar Global?
- At 3Pillar, we offer a world of opportunity:
- Imagine a flexible work environment – whether it's the office, your home, or a blend of both. From interviews to onboarding, we embody a remote-first approach.
- You will be part of a global team, learning from top talent around the world and across cultures, speaking English everyday. Our global workforce enables our team to leverage global resources to accomplish our work in efficient and effective teams.
- We’re big on your well-being – as a company, we spend a whole trimester in our annual cycle focused on wellbeing. Whether it is taking advantage of fitness offerings, mental health plans (country-dependent), or simply leveraging generous time off, we want all of our team members operating at their best.
- Our professional services model enables us to accelerate career growth and development opportunities - across projects, offerings, and industries.
- We are an equal opportunity employer. It goes without saying that we live by values like Intrinsic Dignity and Open Collaboration to create cutting-edge technology AND reinforce our commitment to diversity - globally and locally.
🎯 Who is this job for?
This role is ideal for a Senior Frontend Engineer with 3+ years of experience in React, TypeScript, HTML/CSS, and modern frontend tooling. It suits developers comfortable with agile practices, unit testing, Git, and frameworks like MUI, Redux, or React Query. Perfect for someone in Romania seeking remote, impactful work on global projects in a collaborative, open-source-driven team.
💬 Potential Interview Questions
-
What’s your experience with React and TypeScript in building scalable applications?
Built modular, scalable apps using React with TypeScript, leveraging component-driven design, hooks, and context for state management. -
How do you ensure your React components are performant and reusable?
Use memoization (React.memo,useMemo), component composition, prop typing, and strict separation of concerns. -
Explain your testing strategy for a React application.
Use Jest and React Testing Library for unit and integration tests, writing tests for components, hooks, and API interactions. -
What is your approach to state management using Redux or React Query?
Redux for centralized, predictable state with middleware for async logic; React Query for server state management, caching, and auto-refetching. -
How do you handle form validation in React applications?
Usereact-hook-formfor minimal re-renders and performance; integrateyupfor schema-based validation. -
What are some accessibility (a11y) best practices you follow in front-end development?
Semantic HTML, keyboard navigation, ARIA roles, proper labeling, and color contrast compliance. -
Describe a time you worked with Agile methodologies. How did it benefit your team?
Participated in Scrum sprints with standups, retrospectives, and continuous feedback, enabling quick iteration and cross-functional alignment. -
What’s your experience with MUI and Emotion CSS for styling?
Used MUI for consistent UI components and Emotion for scoped, dynamic CSS with theme integration and responsiveness. -
How do you use Git and Jira in daily development workflow?
Create feature branches, write detailed commit messages, open PRs for peer review; track progress and issues in Jira with user stories and tasks. -
How do you debug and optimize a React application running slowly?
Use React DevTools to track re-renders, Lighthouse for performance audits, code-splitting with lazy loading, and minimizing unnecessary state updates.
📋 Job Summary
3Pillar Global is hiring a Senior Software Engineer (React) in Romania to build high-impact, scalable solutions across industries like healthcare, media, and smart cities. You'll use React, TypeScript, MUI, and modern frontend tools to craft performant UIs in a fully remote, agile team. This full-time role offers flexibility, global collaboration, career growth, and wellness-focused benefits—ideal for engineers with 3+ years’ experience ready to shape innovative digital products.