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November 4, 2026
Mid/Senior Software Engineer (AI Coding Agents)
Mid • Remote
Lisbon, Portugal
Quick Facts
Role: Mid/Senior Software Engineer
Focus: Daily use of AI coding agents across development and engineering workflows
Scope: Modern (C#/.NET) and legacy systems (COBOL, Delphi, PowerBuilder, FoxPro, WinDev)
Description
You will be a hands-on advocate of AI within the team—using AI coding agents every day rather than only discussing AI-assisted development. The role spans modern application development and the analysis, documentation, maintenance, and modernization of legacy codebases, including work where legacy logic is brought into modern architectures.
Responsibilities
Lead by example in daily use of AI coding agents (development, testing, documentation, and code review)
Configure and maintain agent setups (rules, instructions, prompt libraries, context files, reusable workflows)
Share what works via demos, pair-programming, and internal workshops
Identify repetitive tasks that can be accelerated with agentic approaches
Bring pragmatic ideas from the evolving AI tooling landscape
Develop, maintain, and evolve applications across the full technology landscape, including bug fixing and new features
Use AI agents to write, review, and test code and to analyze and explain legacy business rules and data flows
Contribute to modernization initiatives and migrations from legacy to modern architectures
Help shape modern architecture so it can absorb what’s being modernized
Build and maintain a shared knowledge base across legacy and modern systems
Design, develop, and maintain backend and frontend features
Write clean, maintainable code following SOLID and good architectural practices
Participate in code reviews
Work with CI/CD pipelines and cloud environments to build and deploy
Collaborate with product, QA, DevOps, and engineering teams
Support and mentor less experienced engineers, especially in AI-assisted development
Requirements
4 to 6 years of professional software development experience
Hands-on, day-to-day experience with AI coding agents (GitHub Copilot, Cursor, Claude Code), including configuration/rules/instructions
Experience building agentic workflows, MCP servers, or custom AI tooling
Openness and willingness to work with legacy technologies (COBOL, Delphi, PowerBuilder, FoxPro, WinDev)
Solid experience with at least one modern stack, ideally C#/.NET and/or React/TypeScript/JavaScript
Experience with relational databases and SQL
Practical experience writing automated tests (unit, integration and/or end-to-end)
Familiarity with Git, CI/CD pipelines, and Agile
Fluent English (mandatory)
Benefits
No benefits were specified in the provided posting.
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