Lead .NET Engineer (Multi-Stack Oversight)

Description

About Us

With Intelligence is a leading provider of data and insights for the global asset management industry. We are scaling up our technological capabilities, harnessing the power of advanced data systems, AI, and modern cloud-based infrastructure to build a flexible, event-driven platform that supports our growing suite of digital products.

We’re assembling a top-tier London-based engineering team to lead this transformation. This role offers the opportunity to be a key contributor to our technology evolution, leveraging your deep .NET experience to influence product direction, mentor teams, and ensure our systems are robust, scalable, and modern.

Role Overview

As a .Net Specialist you will be leading teams in the design, development, and implementation of software solutions using the .NET framework. You will act as a technical authority across multiple product stacks. This position requires leading architectural discussions, guiding developers, and driving the strategic evolution of legacy and modern systems. You’ll work in a collaborative, cross-functional team to modernise our applications, define best practices, and ensure reliable product delivery.

Key Responsibilities

• Architect, develop, and maintain complex web and backend applications across multiple product lines using C# and .NET Framework/Core.
• Contributing to the overall technical strategy and roadmap working across multiple squads.
• Lead modernisation efforts from legacy technologies (Web Forms, ASMX) to more scalable, maintainable platforms (.NET Core, MVC, etc.).
• Collaborate with product managers, QA, and DevOps engineers to define and implement software requirements in line with engineering goals in agile sprints.
• Guide developers through code reviews, mentoring, and architectural support.
• Implement and maintain CI/CD pipelines using TeamCity and Octopus Deploy.
• Support and optimise application deployment in IIS and AWS environments.
• Analyse SQL performance and optimise queries for production workloads.
• Stay current with emerging Microsoft technologies and recommend best-fit solutions.
• Mentoring and coaching engineers.

Requirements

Core Technologies:

• Expert in C#
• Strong knowledge of .NET Framework 4.x and .NET Core 3.
• Experience with ASP.NET Web Forms, ASMX Web Services, and MVC
• Familiarity with VB.NET (for legacy systems)

Infrastructure & DevOps:

• Experience with AWS for hosting and infrastructure
• Skilled in IIS configuration and deployment
• Strong knowledge of TeamCity for CI
• Experience with Octopus Deploy
• Familiarity with Git for version control

UI & Front-End:

• Exposure to third-party .NET UI libraries (e.g., Telerik)
• Basic understanding or hands-on exposure to Angular is a plus

Database:

• Proficient in SQL Server
• Skilled in writing and optimising T-SQL queries

Desired Experience & Approach

• Prior experience in a senior or lead .NET development role, preferably within a fast-paced product or SaaS environment.
• Demonstrated ability to balance legacy maintenance with modern development practices.
• Experience designing and maintaining RESTful APIs within .NET.
• Strong communication skills with the ability to collaborate effectively across teams.
• Passion for engineering excellence and driving continuous improvement.
• Comfortable working independently and taking ownership of systems.

Why Join Us?

• Shape the future of our product stack as we transition to a decoupled, event-driven architecture.
• Be part of a mission-driven company committed to innovation, quality, and data-driven insights.
• Work with a collaborative team where your input is valued and impactful.

Benefits

Annual Leave

• 22 days per calendar year (and all local bank holidays)
• An additional day off for your birthday

Wellness and Care Leave Up to 5 days for self-care or wellness

Volunteer Day 1 day off to support a charity of your choice

Share With Scheme Eligible employees receive a share in a qualifying event

Therapy Sessions 50% contribution towards therapy sessions, up to BGN 90 per session

Lunch & Learns Events held throughout the year with educational or informative topics

Charity Matching Days Company matches charity sponsorships up to 3500 BGN

Hybrid Working 3 days in the office, 2 days working from home

Multisport 50% contribution from the employer, 50% from employee

State Benefits

• Pension & health provision
• Family-friendly policy

Office Facilities

• Contemporary office space
• Free Onsite gym
• Address: 51, “Cherni vrah” Blvd, 1407 Sofia, WorkBetter Coworking space

Employee Assistance Programme (EAP)

24-hour confidential health assistance via TelusHealth, including:

• Counselling support
• Financial wellbeing
• Bereavement support
• Legal information
• Medical information

Refer a Friend BGN 1,200 reward for successful referral

Hardship Fund Financial assistance repayable with low interest over 3, 6, or 12 months

Learn With Us Access to a learning platform with over 80,000 free courses