# Senior Software Engineer (Tech Lead), Customer Domain Engineering

**Company:** [Forge](https://hotfix.jobs/companies/forge)
**Location:** Denver, CO
**Role:** Backend Engineering
**Salary:** $189k – $215k/yr
**Experience:** 8+ years
**Skills:** C#, .Net, Kafka, RabbitMQ, Cqrs, Event Sourcing, SQL, API Development, Agile, CI/CD
**Posted:** 2026-05-28

> Senior Software Engineer and Tech Lead responsible for designing customer domain web applications, leading a workstream, mentoring engineers, and building scalable C#/.NET APIs with event-driven architecture in a fintech environment.

## Job Description

## Responsibilities
- Design, implement, and maintain web applications with customer domain-specific business logic
- Communicate with stakeholders, including Architects, Tech Leads, Product, and Design teams to deliver customer and business value
- Mentor junior engineers and guide the team on internal/external frameworks, best practices, and new technologies
- Develop concise, detailed, and articulate technical documentation
- Leverage Agile and Lean practices
- Lead a workstream, partner with Product on requirements, define technical requirements, and plan actionable tasks
- Design, build, and maintain automated tests (unit and integration) to ensure high code quality
- Support healthy system operations and ensure high availability

## Requirements
- Bachelor’s degree in Computer Science, Engineering, or equivalent experience
- 8+ years of software engineering experience
- Experience as a technical lead for a product engineering team
- Expertise building APIs with C# and .NET
- Experience with event-driven systems (Kafka, RabbitMQ, or similar)
- Experience with CQRS, Event Sourcing, or similar architectural patterns
- Strong knowledge of SQL / relational databases
- Experience contributing to and interpreting system design
- Proven track record of teamwork and delivery
- Experience in fintech or financial services, including familiarity with regulatory considerations

## Nice-to-Haves
- Experience with KYC (Know Your Customer) workflows
- Experience with multiple server-side programming languages
- Experience with TDD (Test Driven Development) or DDD (Domain Driven Development)
- Experience with Marten (Event Store DB)
- Experience with CI/CD pipelines and deployment processes
- Experience building and scaling systems to millions of users

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