Senior Lead Full-Stack Engineer (Java/Spring Boot/React/Cloud) – Full Remote
Senior, backend-focused full-stack engineer at HumanIT, a Portuguese software house/consulting company. You'll build modern products primarily with Java/Spring Boot (plus React/Angular), shape architecture, mentor engineers, and use AI coding tools (Claude Code, Ollama, etc.) daily. Fully remote.
- Compensation
- Not disclosed
- Location
- Lisbon, Portugal
- Work setup
- Remote
- Seniority
- Lead
- Employment
- Not specified
- Experience
- 5+ years
- Category
- Fullstack
- Posted
Skills
Must have
- 5+ years of backend development experience with Java in production environments
- Great English communication skills, written and spoken
- Bachelor's or Master's degree in Computer Science, Software Engineering, or related field
- Strong hands-on experience with Spring and Spring Boot (primary stack)
- Solid software engineering fundamentals: clean code, testing, code review, CI/CD practices
- Experience with React or Angular
- Active use of AI coding assistants in daily workflow (OpenCode, Ollama, Qwen3, Claude Code, or equivalent)
- Comfortable using AI tooling for code generation, refactoring, unit test writing, documentation, and troubleshooting
- Pragmatic and critical about AI tools — knows when they help and when they don't
- Previous team leadership experience — has guided or mentored other engineers
- Genuine interest in software architecture
- Proactive approach to technical decisions, code quality, and engineering best practices
- Strong interest in learning and adopting new technologies
- Autonomous, proactive, and a critical thinker
Nice to have
- Cloud platform experience — GCP preferred (Cloud Run, GKE, BigQuery, Pub/Sub); AWS or Azure also valued
- Experience in a software house or product startup environment
- Contributions to architecture design at team or system level (ADRs, tech specs)
- Familiarity with containerisation (Docker, Kubernetes)
- Experience with CI/CD pipelines and DevOps practices in a backend context
- JavaScript or TypeScript proficiency alongside backend work
Full description
Senior Lead Full-Stack Engineer (Java/Spring Boot/React/Cloud) – Full Remote
ABOUT THE OPPORTUNITY
This is a senior engineering role inside a software house with a startup mindset — small team, real ownership, and a genuine appetite for new technologies. You won't be maintaining legacy systems in silence. You'll be shaping how things are built, contributing to architecture decisions, and working with a team that values critical thinking and proactivity over process compliance. If you've spent 5+ years doing serious Java backend work, you're curious about where AI-assisted development is going, and you want to actually influence the technical direction of what you build — this is worth your attention.
At HumanIT (4.4 ⭐ on Glassdoor, 89% recommend), people stay because the work is real and the culture backs it up. Remote-first, autonomous, and built around people who want to grow — not just deliver tickets.
🔗 What it's really like to work here:
PROJECT & CONTEXT
You'll work within a small, cross-functional engineering team building modern software products across dynamic and innovative projects. The role is firmly backend-focused, but you'll collaborate across the full stack and contribute to architecture discussions that go beyond your immediate feature scope. The team embraces AI code assistance tooling as part of the daily workflow — including OpenCode, Ollama, Qwen3, Claude Code, and similar tools — expecting engineers to use them actively for development, refactoring, testing, documentation, and troubleshooting. This is an environment that rewards autonomy, continuous learning, and technical curiosity.
WHAT WE'RE LOOKING FORExperience
- 5+ years of backend development experience with Java in production environments
- Great English communication skills — written and spoken, for team collaboration and technical documentation
- Bachelor's or Master's degree in Computer Science, Software Engineering, or a related field
Backend Engineering
- Strong hands-on experience with Spring and Spring Boot — this is your primary stack
- Solid software engineering fundamentals: clean code, testing, code review, and CI/CD practices
- Experience with React or Angular — backend-focused, but comfortable holding your own in full-stack conversations
AI-Assisted Development
- Active use of AI coding assistants in your daily workflow — OpenCode, Ollama, Qwen3, Claude Code, or equivalent
- Comfortable using AI tooling for