Principal C#/.NET Consultant, Budapest

ION Group

Budapest on site Until 8/21/2026 First posted July 18, 2025 Last posted July 18, 2025

Job description

Lab49 has an opportunity available for a Lead .NET Engineer to lead work on complex and challenging projects to drive transformative change for our top- tier Financial Services clients. Operating in an Agile environment, applications are built with modern C# and front-end Web technologies and frameworks.

RESPONSIBILITIES:

Build testable, robust C#/.NET microservices leveraging cloud, containerization, messaging, and other modern paradigms.
Take part in software and architectural design.
Participate within an Agile/Scrum team working from stories to build software during scrum sprints.
Be responsible for owning applications and provide support when required.
Work with our clients in interactive, project-based engagements, where self-organizing and focused teams move quickly to build innovative solutions for the client.
Have the desire to collaborate, and like sharing and learning from your colleagues.
Be passionate about delivering quality code.
Demonstrate experience writing commercial-grade software applications.
Have a deep understanding of multithreading and real-time software architectures.
Have an abiding interest in and competence for solving real-world business problems (with technology as an enabler).
Be determined to succeed despite obstacles and challenges, as well as a positive attitude favoring achievement of goals over open-ended investigation .

REQUIREMENTS:

10+ years of solid hands-on experience with C#/.Net development
10+ years of experience in SQL
10+ years of experience with multi-tier architectures
Fluency with modern C# and its functional features
Strong grasp of software design and development methodologies
BS in Computer Science or equivalent experience
Modern front-end web technology experience a plus.
Experience with, knowledge of, and strong demonstrated interest in, global financial markets and financial products.

Lab49/ION is committed to maintaining a supportive and inclusive environment for people with diverse backgrounds and experiences. We respect the varied identities, abilities, cultures, and traditions of the individuals who comprise our organization and recognize the value that different backgrounds and points of view bring to our business.

Lab49/ION adheres to an equal employment opportunity policy that prohibits discriminatory practices or harassment against applicants or employees based on any legally impermissible factor.

About this role

Summary

Lead C#/.NET projects in financial services, designing robust, scalable software solutions.

Job title

Principal C#/.NET Consultant

Experience level

10+ years

Industry

finance

Location requirements

Budapest, on-site role with no remote work specified.

Salary

Not specified

Management role

Skills & keywords

Required skills

C#.NETSQLmultithreadingsoftware design

Preferred skills

front-end web technologiesfinancial markets

Specializations

C#.NETmicroservicescloudmultithreading

Locations

Structured locations inferred from the posting.

Budapest, Hungary

On-site City