HubMub
-
avacone Switzerland

Senior / Lead C# Developer

avacone Switzerland
France · Full-time · Mid-Senior
Role Overview

We are an established IT services company working closely with clients in the banking and financial services sector. We are looking for a Senior / Lead C# Developer to lead the design and delivery of enterprise-grade software solutions for a major banking client.

This role combines hands-on development with technical leadership, operating within a regulated banking environment while remaining part of a professional, delivery-focused IT organisation.

Requirements

Key Responsibilities

  • Design, develop, and maintain secure, scalable applications using C# and .NET (.NET Core / .NET 6+)
  • Act as technical lead for development activities on banking client engagements
  • Take ownership of solution architecture, code quality, and technical standards
  • Lead and mentor developers through code reviews, coaching, and best practices
  • Ensure solutions comply with client security, risk, and regulatory requirements
  • Work closely with client stakeholders, product owners, and internal delivery teams
  • Contribute to technical estimations, planning, and delivery commitments
  • Identify, communicate, and mitigate technical risks in a client-facing environment

Required Skills And Experience

  • Strong commercial experience with C# and the .NET ecosystem
  • Proven experience in a senior or lead engineering role
  • Solid understanding of enterprise application architecture and design patterns
  • Experience building and consuming RESTful APIs
  • Strong knowledge of relational databases (e.g. SQL Server, Oracle, PostgreSQL)
  • Experience with cloud and hybrid environments (Azure preferred)
  • Familiarity with security and compliance requirements in banking or regulated industries
  • Comfortable working in client-facing roles with high expectations on quality and delivery

Nice to Have

  • Prior experience working for an IT consultancy or systems integrator
  • Exposure to banking platforms, core banking systems, or financial data flows
  • Experience with microservices, messaging systems, or event-driven architectures
  • Knowledge of CI/CD pipelines, DevSecOps, and automated testing
  • Experience working in agile delivery models with enterprise clients

Benefits

What We Offer

  • Competitive salary and benefits package
  • Hybrid working model with London as primary client location
  • Exposure to complex, high-impact banking projects
  • A professional consulting environment with strong technical standards
  • Clear career progression within technical leadership or solution architecture

Key Skills

Ranked by relevance

c design patterns microservices restful apis postgresql sql server oracle server cloud cicd sql
Login to Apply
🇫🇷

Country Guide

France

Large economy with strong startup and AI ecosystem

Posted
Jan 14, 2026
Type
Full-time
Level
Mid-Senior
Location
Saint-Julien-en-Genevois
Company
avacone Switzerland

Industries

IT Services IT Consulting

Categories

Other

Related Jobs

3 roles aligned with this opportunity

View all jobs
View Job Details
My Money Matters
Related

Full Stack Software Engineer

2026-04-11

Full-time
Entry
United Kingdom
IT Services
Other
View Job Details
Eclit
Related

Senior Software Developer

2026-04-10

Full-time
Associate
Turkey
IT Services
Other
View Job Details
Machinarium
Related

Backend Software Engineering Team Lead (Node.js)

2026-04-10

Full-time
Mid-Senior
Turkey
IT Services
Other