Senior .NET Engineer (Internal Apps)
- Hiring from
- Czech Republic
- Work type
- Hybrid
- Posted
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The Role
We’re looking for a Senior .NET Engineer to be the first engineer on our new Internal Apps team, acting as the technical force multiplier behind the teams that keep our platform running.
Our Data and Support teams keep CMG’s reference data accurate and keep live deals running smoothly. They know exactly what they need but often lack the tools to do it efficiently. You’ll change that. Working directly with these internal power users, you’ll turn their ideas into well-built, well-supported tooling: admin interfaces, APIs, internal MCP servers that connect to AI agents, and agent workflows that automate the repetitive parts of their day.
As the first engineer on the team, you’ll help shape how it operates, from how requests come in to how tools are built, shipped, and supported. This role suits someone who is comfortable across the stack and does their best work with a lot of autonomy. You’ll navigate the organization, make decisions on your own, and know when something needs to go up the chain and what context to bring with it.
Our Data team is based in the US, so you’ll need regular working-hours that overlap with US time zones and the flexibility to shift your schedule when the work calls for it.
Our Engineering Team
The CMG engineering team consists of domain experts who work collaboratively within a culture of cross-domain knowledge sharing. We value engineers who are passionate about modern technologies and best practices.
Our engineers are encouraged to challenge the status quo and are constantly seeking improvement and efficiency in our code-base and platform. CMG engineers are empowered to explore solutions using leading edge technologies such as AI and bring recommendations to the table. We are in a period of making impactful engineering decisions.
As part of our process, we believe in taking the time for research and prototyping - this is critical in making the right decisions. Given the experience of our team, we have naturally adopted best practices from local development, through code review and into production rollouts. Besides the standard pull requests, test automation, code coverage tracking, containerization, and one-click deployments, we are constantly reviewing these foundational components to develop new best practices.
Responsibilities
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Operate as a product engineer whose customers are internal. You solve real operational problems instead of clearing a backlog: you bring ideas, challenge assumptions, and own outcomes.
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Work directly with internal power users on our Data and Support teams. You’ll distill their requests into clear requirements and build iteratively alongside them, shipping early and refining as you learn.
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Be the technical force multiplier behind the scenes, turning the Data team’s ideas for tooling into reliable, maintainable tools.
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Build creatively with AI. Design and maintain internal MCP servers, agent workflows, and integrations that let non-engineers safely use AI against our systems and data.
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Work across the stack, with .NET as your primary strength. You’ll design services and APIs in .NET and build React front-ends to match.
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Own the tools you build. Keep them reliable, monitored, and documented, and support the teams that depend on them day to day.
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Uphold a high quality bar. Write your own unit, integration, and end-to-end tests. Every line of code, whether human-written or AI-assisted, is reviewed by a human before it ships.
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Drive technical improvements. Proactively identify friction in operational workflows and in the tooling itself, propose changes, and see them through to adoption.
Qualifications
- Must be based in Czech Republic.
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C#, ASP.NET Core: 3+ years.
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Software Engineering: 5+ Years.
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English level - C1 or C2.
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Experience building MCP servers or AI agent integrations is preferred.
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Front-end experience, ideally React with TypeScript, is preferred.
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Experience working directly with non-technical stakeholders to define requirements is a plus.
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Fintech experience is a plus.
Our Tech Stack
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Containerized .NET backend with a React/TypeScript front-end.
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Web interfaces, APIs, MCP servers, and AI agents that serve our internal tooling needs.
Our Values
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We innovate with purpose
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We focus on outcomes vs. output
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We believe diverse and inclusive teams fuel innovation
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We are humble yet candid
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We do right by the customer
What we offer
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Unlimited vacation
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Meal vouchers paid in full by the company
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Multisport card contribution
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Pension contributions
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Language courses
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Centrally located office in the heart of Brno
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Bi-weekly team lunches provided by the company
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Tech courses and conferences
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Top of the line MacBook
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Company team building events
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Flexible working hours and the possibility to work from home
CMG embraces our ongoing commitment to building a culture reflecting the people, perspectives, and passions it represents. We will accept nothing less than equity, inclusion, and belonging for all. With the only constant in life being change, we will always listen, learn, and improve for the betterment of our teams, customers, and communities. CMG is proud to be an Equal Opportunity Employer.
