Mid Full-Stack Engineer (TypeScript/Node.js)

Bentley

Location: Vilnius, Lithuania
Job Type: full-time
Salary: Unknown
Posted: December 18, 2025

Job Description

Position Summary:

Bentley Systems is seeking talented Full-Stack Engineer to build the next generation of infrastructure engineering applications based on the company’s iTwin Platform.

This is an exciting opportunity to help shape the future of engineering applications and workflows, spanning cloud and desktop and utilising the bleeding-edge technologies that are part of Bentley’s unique and rapidly growing Digital Twin ecosystem, including AI/ML, IoT, and Reality Data.

Successful candidates will join a highly skilled international team in a highly visible, mission-critical role. In this role, you will be responsible for building the next generation of engineering applications that will advance global infrastructure in exciting ways and contribute to the platform on which these applications are built.  

You will bring demonstrable full-stack experience designing and developing cloud or hybrid cloud/desktop solutions, extensive knowledge of JavaScript and TypeScript, enthusiasm for cutting-edge technologies, and a drive to continuously experiment, challenge yourself, and learn.

Responsibilities:

Participate in designing and developing new features using JavaScript, TypeScript, React, and other technologies.
Participate and contribute to discovery and experimentation efforts.
Write well-tested, well-documented, and maintainable code and APIs and participate in code reviews.
Commit yourself to continuous learning and adapting to and integrating new technologies.
Work with a team in an agile software development process.
Demonstrate an ability to provide and receive constructive feedback.
Mentor team members as required.
Take ownership of the functionality you write and the designs you implement.

Qualifications:

Equivalent bachelor’s degree or training in computer science fundamentals.

3+ years of hands-on experience as a Software Developer.
Deep understanding of modern web and/or desktop application architecture, API design patterns, performance, and scale.
Proficient in JavaScript or Typescript, both in Node.js and web-based frontends.
Thorough knowledge of object-oriented programming.
Experience working with Git or other distributed version control systems.
Must be proactive and results-oriented, able to work independently and solve complex problems.
Ability to learn new technologies quickly and apply them in production.
Ability to build secure software, with proven knowledge of web security and mitigation techniques.
Ability to work in a team with solid communication skills.

What would make you stand out:

Cloud-based development experience (Azure, AWS, etc.).
Knowledge of agile scrum development, continuous delivery, and DevOps processes.
Experience with web-based desktop application frameworks (Electron, Tauri, WebView2, etc.).
Web frontend design technologies (HTML, CSS).
Experience with JS client frameworks such as REACT and Angular.
Experience in other languages like Rust, C++, and Java is a plus.
Experience with AI/ML is a plus.

What We Offer:

A great Team and culture – please see our colleague video.
An exciting career as an integral part of a world-leading software company providing solutions for architecture, engineering, and construction - watch this short documentary about how we got our start.
An attractive salary and benefits package.
A commitment to inclusion, belonging and colleague wellbeing through global initiatives and resource groups.
A company committed to making a real difference by advancing the world’s infrastructure for better quality of life, where your contributions help build a more sustainable, connected, and resilient world. Discover our latest user success stories for an insight into our global impact.
Training and professional development opportunities (certifications programs, conferences etc.).
Additional annual leave days and extra paid days for different occasions (marriage, moving day, bereavement leave etc.).
Health insurance package and accidents insurance 24/7.
Referral program with bonuses.
Extra paid day for volunteering in the organization of your choice.
Ability to work from office or fully remote from home.

Please note if you are employed full-time, the salary for this position ranges from 3500 EUR gross (before taxes-Lithuania) depending on knowledge and experience.

If you are ready to take your development skills to the next level and be part of a team that is shaping the future of software, we want to hear from you! Apply now and embark on an exciting journey with Bentley!

Please submit resume in English.

🎯 Who is this job for?

This role is ideal for a mid-level full-stack engineer with strong TypeScript/Node.js and React skills who wants to build next-generation cloud and hybrid engineering applications within a modern digital-twin ecosystem. It suits someone comfortable designing features end-to-end, working with modern architectures and APIs, experimenting with new technologies, and contributing to scalable, secure, well-tested solutions. It’s a great fit for engineers eager to grow, mentor others, and work in an agile, international team shaping advanced infrastructure software.

💬 Potential Interview Questions

What is your experience building full-stack applications with TypeScript and Node.js?
I’ve built and maintained full-stack applications using TypeScript on both the backend (Node.js) and frontend (React), sharing types between layers, defining REST/GraphQL APIs, and focusing on performance, reliability, and clear module boundaries.
How do you structure a Node.js/TypeScript project to keep it maintainable and scalable?
I organize by domain (feature modules), separate concerns into layers (controllers, services, repositories), use strict TypeScript configs, centralize common utilities and types, and enforce conventions with ESLint and Prettier.
How do you design and consume APIs in a modern web application?
I define resource-oriented endpoints with clear input/output schemas, use proper HTTP status codes and error formats, document them (e.g., OpenAPI), and consume them via typed clients or React hooks while handling loading, error, and retry states.
What is your approach to building React components in TypeScript for complex UIs?
I build small, reusable components with well-defined typed props, use hooks for shared logic, keep state as local as possible, and rely on composition rather than inheritance to keep components flexible and testable.
How do you ensure your code is well-tested and maintainable over time?
I write unit tests for pure logic, integration tests for critical flows, and occasionally end-to-end tests; I also keep functions small, avoid tight coupling, and refactor when complexity or duplication starts to appear.
How do you handle performance concerns in a web or hybrid cloud/desktop application?
On the frontend I profile rendering, use memoization and code-splitting, and avoid unnecessary re-renders; on the backend I optimize hot paths, use proper indexing and caching, and monitor with metrics and logs to find real bottlenecks.
What experience do you have with cloud platforms like Azure or AWS in a full-stack context?
I’ve deployed Node.js backends and SPAs using managed services, configured environment-specific settings, used managed databases and storage, and integrated CI/CD pipelines to automate build, test, and deployment.
How do you address security in your TypeScript/Node.js and React applications?
I validate and sanitize inputs server-side, handle authentication/authorization correctly, protect against common attacks (XSS, CSRF, SQL injection), use HTTPS everywhere, and avoid exposing secrets in client code or logs.
Describe how you use Git in a collaborative engineering team.
I work with feature branches, make small, focused commits, open pull requests for review, resolve conflicts early, and follow a branching strategy (e.g., main/develop) that supports stable releases and quick hotfixes.
How do you keep your skills current and integrate new technologies into production systems responsibly?
I experiment with new tools in small spikes or side projects, evaluate them against real requirements (stability, performance, team fit), and introduce them incrementally with good documentation and team buy-in rather than large, risky rewrites.

📋 Job Summary

Bentley Systems is hiring a Europe-based Mid Full-Stack Engineer (TypeScript/Node.js) to build next-generation infrastructure engineering apps on its iTwin digital twin platform. You’ll work with JavaScript/TypeScript, Node.js, React, and cloud/hybrid architectures to develop well-tested features and APIs in an agile, international team. The role offers flexibility (office, home-based, or hybrid) and exposure to cutting-edge areas like AI/ML, IoT, and reality data. Compensation starts around €3,500/month gross in markets like Lithuania (higher depending on country, skills, and experience), with strong benefits, training, and a chance to impact real-world infrastructure globally. Join if you want ownership, modern tech, and meaningful engineering work at scale.