Staff Backend Software Engineer (.NET)

Lisbon, Portugal

Specialist (5+ Years)

Hybrid

English Required Not Accepting Candidates Living Abroad

Regulatory compliance technology company providing an AI-powered platform to global enterprises. The team builds and evolves modern, cloud-based applications for a global customer base, focusing on scalability, reliability, and engineering excellence as the product grows toward SaaS maturity.

What you will do

Write clean, maintainable code that sets the standard for other engineers on the team.
Deliver high-quality, working software regularly as part of a development team.
Provide insightful, thorough code reviews with attention to architectural impact.
Ensure documentation exists for critical systems and author technical guides for other engineers.
Help define reliability standards so teams can monitor applications and respond to incidents effectively.
Diagnose root causes of complex bugs and deliver fixes with automated regression tests.
Mentor, coach, and empower other engineers, sharing knowledge through demos and presentations.

Location and work model

Hybrid (2 days/week in the office, Lisboa)

.NET Core — 10+ years
C# — 10+ years
Microservices architecture — expert level
Event-driven architecture / messaging (Kafka, RabbitMQ, or similar) — 2+ years
NoSQL databases (Elasticsearch, DynamoDB, MongoDB, Redis, or similar)
Docker and Kubernetes
Agile environment experience
Technical leadership and mentoring experience — 3+ years
English B2

Nice to have

Experience with Kafka specifically
Experience with Elasticsearch specifically
Site Reliability Engineering practices
Experience with additional messaging/streaming tools (e.g. Pulsar)

We connect IT professionals with projects that match their skills, professional experience, and goals, then we offer a career progression program, delivered by in-house specialists - our People Experience Partners - to guide them through our journey with us.

What we offer:

A project that matches your skills and ambitions, as well as your preferences for working policies and culture.
A competitive salary with awesome benefits and opportunities to leverage your knowledge and network to earn additional income.
An empowering and respectful work culture enriched with social and learning events.
A People Experience Partner specially assigned to you - your go-to career guide, responsible for supporting your growth, facilitating training, and ensuring your work-life balance at KWAN.

At KWAN, they make sure that I feel comfortable with the client I’m working for and that what I’m doing aligns with my career aspirations.

Luis Caldeira, DevOps @ KWAN

At KWAN, I’m given the space to be myself and do what I love. I have control over the projects I work on, as well as the direction of my career.

Pedro Fonseca, Front End Developer @ KWAN

I see my People Experience Partner as someone who is always available to provide me with motivation and constant feedback, which helps me be sure that I am in the right place.

Josimar dos Reis, Software Developer @ KWAN

I know that I’ve contributed to the growth of a company that truly values a “people first culture”, because my ideas, experiences, and individuality were always appreciated.

João Nascimento, Software Developer (KWAN Alumni)

My two years at KWAN were an incredible experience! From the start, I was welcomed into a warm and collaborative environment where I felt truly supported.

Laís Ortiz, Software Developer @ (KWAN Alumni)

Grab this opportunity, apply now!