Senior Software Engineer: LLM Tooling & Code Modernization

BENTLEY SYSTEMS, INC.; Dublin; On-site; EUR 110,000 - 140,000; Full time

Job summary

Bentley Systems in Dublin is seeking a highly autonomous Senior Software Developer focusing on LLM tooling and code modernization. You will transform large engineering software using automated agents and pipelines, owning delivery from discovery to deployment.

This role emphasizes building reliable systems and coordinating across teams to deliver measurable improvements while reducing manual effort. The position requires turning complex problems into executable plans, maintaining behavior and

Qualifications

• Defined and solved underspecified problems without step-by-step supervision.
• Proven automation experience beyond simple coding.
• Built developer tools, pipelines, or integrations that multiply engineering output.
• Ability to decompose large problems and orchestrate parallel tasks.
• Strong testing, debugging, and performance fundamentals.

Responsibilities

• Identify modernization opportunities from discovery to delivery.
• Build LLM-powered pipelines for code understanding and refactoring.
• Run multiple agent-driven workstreams across projects.
• Connect agents to source code, compilers, build systems, tests.
• Automate loops with clear stopping conditions and human review.
• Divide migrations into verifiable units preserving behavior.
• Replace recurring manual work with reusable tools.
• Evaluate new tools to improve quality and throughput.
• Deliver integrated code and handover to product teams.

Skills

Self-directed delivery

LLM / coding-agent experience

Developer tooling pipelines

Problem decomposition

Testing and debugging

Entrepreneurial ownership

Learning new tools quickly

Production tools/open-source contrib

Tools

Rust

C++

C

Fortran

CI/CD tooling

Observability tooling

Job description

Bentley Systems in Dublin is seeking a highly autonomous Senior Software Developer focusing on LLM tooling and code modernization. You will transform large engineering software using automated agents and pipelines, owning delivery from discovery to deployment.

This role emphasizes building reliable systems and coordinating across teams to deliver measurable improvements while reducing manual effort. The position requires turning complex problems into executable plans, maintaining behavior and