Full stack developer (AI Solutions)

Remote from: Lithuania
Salary, yearly, EUR: 38,400 - 60,000
Department: Programming
Employment type: Full Time,
Job posted: 8 Jun 2026
Apply before: 8 Jul 2026
Experience level: Senior
Views / Applies: 28 / 3

Predictable patient enrollment across multiple therapeutic areas.

Pharmaceuticals
1995

AI Summary

PSI, a leading Contract Research Organization, seeks a Full Stack Developer to work on internal business applications with a focus on AI solutions. The role involves developing and maintaining applications, conducting code reviews, and staying updated on technologies. The ideal candidate has a CS degree, proficiency in C#, .NET, SQL, and JavaScript, with a plus for machine learning and Python. This remote position in Lithuania offers a stable, international environment with diverse projects. The gross salary range is 38,400-60,000 EUR annually based on experience.

Role DNA

Job Complexity

Easy Hard

Pace & Pressure

Relaxed Fast-paced

Autonomy Level

Guided Full Ownership

Communication Load

Independent Highly Collaborative

AI Insight The role requires a mix of traditional full-stack skills and emerging AI technologies, which adds complexity. However, it is a mid-level position with clear guidelines and team support, so difficulty is moderate.

Salary Analysis

AI Insight The offered salary range of 38,400-60,000 EUR aligns with market rates for a middle developer in Lithuania. The lower end is competitive for entry-mid level, while the upper end is attractive for experienced candidates. Benefits like performance bonus and health insurance enhance the package.

Key Skills

C# .NET SQL JavaScript Machine Learning Python Blazor Full Stack Development AI Solutions Clinical Research

Cover Letter Sample

Dear Hiring Team,

I am excited to apply for the Full Stack Developer (AI Solutions) position at PSI. With a strong background in C#, .NET, and SQL, combined with my experience in JavaScript and machine learning, I am well-prepared to contribute to your AI initiatives.

I thrive in collaborative international environments and am eager to apply my skills to support PSI's business processes. I look forward to discussing how I can add value to your team.

Sincerely,
[Your Name]

Possible Interview Questions

Describe your experience with C# and .NET frameworks in a full-stack context.

I have over 5 years of experience using C# and .NET for building web applications, including ASP.NET MVC and Web API. I've worked on both front-end and back-end components, ensuring seamless integration and performance.

How have you integrated machine learning models into a web application?

I have integrated ML models using REST APIs built with Flask or .NET Core. For example, I deployed a sentiment analysis model as a microservice that the main application calls asynchronously. I also used Azure ML for model management.

Explain a challenging bug you resolved in a SQL stored procedure.

I once debugged a stored procedure that caused deadlocks under high concurrency. I analyzed the execution plan, identified missing indexes, and rewrote the procedure to use table hints and avoid long-running transactions, which resolved the issue.

How do you ensure code quality and maintainability in your projects?

I follow coding standards, conduct code reviews, write unit tests, and use static analysis tools. I also document architectural decisions and keep code modular to facilitate future changes.

What experience do you have with Blazor or similar front-end frameworks?

I have used Blazor for a few projects, creating interactive UIs with C#. I appreciate its ability to share code between client and server. Additionally, I have experience with Angular and React.

Company Description

PSI is a leading Contract Research Organization (CRO) with 30 years of experience in the pharmaceutical industry. Originated in Switzerland, PSI is a privately owned, full-service CRO with a global reach, supporting clinical trials across multiple countries and continents. Our reputation for being highly selective about the projects we undertake highlights our commitment to delivering high-quality, timely services across a broad spectrum of therapeutic indications.

At PSI, we foster an environment where a diverse range of colleagues feel welcomed and valued. Our inclusive culture is a cornerstone of our success, enabling us to attract and retain top talent globally.

We are not just about conducting clinical trials; we are about building a community where every team member has the opportunity to thrive and contribute to groundbreaking advancements in the pharmaceutical industry.

Job Description

As a Full stack Developer, you will be involved in development of projects for internal clients and will provide quality coding to support PSI business processes and operations with the focus on AI solutions.

Full-time employment based in Lithuania

You will:

Architect, develop and maintain business applications
Process user requests for developing of new and support for existing IT systems
Prepare documentation related to development and maintenance of business applications
Execute and implement software tests, participate in code reviews
Follow the development standards applied within the department
Track the development, maintenance and related tasks in the tracking system used within the team
Follow the progress of systems development technologies and advance professional skills as necessary

Qualifications

Must have:

BSc/BA in computer science, software engineering or relevant discipline
Full working proficiency in English
Knowledge of web technologies including JS(ES+)
Knowledge of C# language, Microsoft .NET frameworks, technologies and best practices
Knowledge of Transact SQL, MS SQL functions, stored procedures and other SQL objects

Good to have:

Experience with Machine Learning, Deep Learning, Neural Networks (CNNs, RNNs, Transformers), Natural Language Processing (NLP), Computer Vision
Python development experience
Experience with Blazor

Additional Information

Stable, privately-owned company, organically growing since 1995
Opportunity to work remotely in Lithuania
Intensive induction program, technical and industry-related trainings for an optimal start and continuous development
Diverse projects that include but are not limited to web and desktop apps, ERP system, BPM system, document management system, AI initiatives and more
Friendly and supportive atmosphere in a committed team
International environment, with colleagues around the world
Opportunities to quickly see the results of your work
Gross salary range for Middle Developer: 3200-5000 EUR monthly (based your overall experience and qualifications)
Corporate benefits: performance-based bonus, supplementary health insurance, annual team events

Apply now >