Senior AI Software Engineer - Hybrid (Legacy & Modern)

Nextlane; Sintra; Hybrid; EUR 55,000 - 75,000; Full time

Benefits offered by this job

Hybrid Work Model

Meal Voucher

Vacation days

Language Training

Private Medical Insurance

Teambuilding

Job summary

Nextlane in Portugal is seeking a Mid/Senior Software Engineer to be the hands-on advocate of AI within the team. You won't just talk about AI-assisted development.

You'll lead by example, using AI coding agents every day and showing your teammates how to get real value from them. Our product landscape spans modern applications built with C# and .NET and long-lived systems in COBOL, Delphi, PowerBuilder, FoxPro and WinDev that still run critical business processes for our customers.

Qualifications

• 4 to 6 years of professional software development experience.
• Proven hands-on experience with AI coding agents such as GitHub Copilot, Cursor or Claude Code, including configuration and rule/instruction management.
• Experience building agentic workflows and custom AI tooling.
• Genuine openness to work with legacy technologies (COBOL, Delphi, PowerBuilder, FoxPro, WinDev).

Responsibilities

• Lead by example in daily use of AI coding agents across development, testing, documentation and code review.
• Configure and maintain agent setups for the team: rules, instructions, prompt libraries, context files and reusable workflows.
• Share best practices through demos, pair programming and internal workshops to build team confidence with AI tools.
• Identify repetitive tasks suitable for agentic approaches and propose practical improvements.
• Help shape modernization efforts bridging legacy and modern architectures.

Skills

AI agent workflows

Code reviews

CI/CD

Learning mindset

Tools

GitHub Copilot

Cursor

Claude Code

Docker

Azure

AWS

GCP

Job description

Nextlane in Portugal is seeking a Mid/Senior Software Engineer to be the hands-on advocate of AI within the team. You won't just talk about AI-assisted development.

You'll lead by example, using AI coding agents every day and showing your teammates how to get real value from them. Our product landscape spans modern applications built with C# and .NET and long-lived systems in COBOL, Delphi, PowerBuilder, FoxPro and WinDev that still run critical business processes for our customers.