Freelance Senior .NET Developer / Tech Lead

WISE INTEGRATION

Remote (Lithuania) Remote Contract €62.4K – €104K/yr 3 days ago
Workplace
Remote
Location
Lithuania

Check your CV against this job

Free · No signup · A 0–100 ATS match score and the keywords you're missing.

Check my CV free

$14.99/month in most countries, cancel anytime. Already have an account? Log in

About the role

Project/Client: Fintech

Location: Lithuania

**Start Date:**ASAP

Duration: 12 months

**Language:**English

Role Overview:

We’re looking for a Senior .NET Developer / Tech Lead to join our engineering team and build payment-focused backend solutions in a regulated fintech environment. This is a hands-on role combining software development with technical leadership. You’ll design and develop backend services, contribute to technical and architectural decisions, and help the team maintain high engineering standards.

Key Responsibilities:

* Design and develop backend services using C# / modern .NET * Contribute to technical design and architectural decisions * Build integrations with REST APIs, third-party platforms, messaging, and file-based interfaces * Ensure code quality through code reviews and engineering best practices * Mentor developers and lead technical discussions * Work with SQL, relational databases, CI/CD, and Docker * Build secure, reliable, and scalable software solutions * Collaborate with product, compliance, QA, and other engineering teams

Must-Have Requirements:

* 7+ years of hands-on C# / .NET experience * Strong backend development experience * Experience with REST APIs, integrations, and distributed systems * Strong SQL and relational database experience * Experience with Docker and CI/CD * Understanding of secure and reliable software development * Experience as a Senior Engineer, Tech Lead, or similar * Ability to take technical ownership and guide other developers

Nice to Have:

* Experience in payments, banking, fintech, or financial services * Experience in a regulated / compliance-driven environment * Knowledge of ISO 20022 / SEPA * Understanding of clearing, settlement, or payment processing * Experience with Azure or AWS

Originally posted on Himalayas

Tools and guides for your application

Get matched & apply with FindAJobAI

Upload your resume once. We score every job against your profile, tailor your resume and cover letter, and autofill the application.