Senior Software Engineer (.NET)

Lisbon, Portugal

Senior (4-6 Years)

Hybrid

English Required Not Accepting Candidates Living Abroad

Regulatory compliance technology company providing an AI-powered platform to global enterprises. You will join a team of engineers building modern, high-quality applications for a global customer base, contributing to architectural decisions and helping drive the platform towards SaaS excellence.

What you will do

Write clean, maintainable code using .NET and C# alongside modern tools such as Kafka, PostgreSQL, and Elasticsearch.
Deliver high-quality, working software as part of a collaborative development team.
Build deep, expert understanding of the team's codebase.
Provide insightful code reviews with attention to broader architectural concepts.
Ensure documentation exists for critical systems and write technical guides for other engineers.
Monitor dashboards and alerts, responding to incidents with appropriate urgency.
Drive technical decision-making, identifying trade-offs and risks with an eye on organization-wide alignment.

Location and work model

Hybrid (1 day/week in the office, Lisboa)

.NET Core — 6+ years
C# — 6+ years
Bachelor's degree in Computer Science or related field
Experience with microservice architectures
Experience with event-driven architectures and event streaming/messaging tools (e.g. Kafka, RabbitMQ, Pulsar)
Experience with SQL and NoSQL databases (e.g. Elasticsearch, PostgreSQL, MongoDB, Redis, Dynamo)
Experience working in an Agile environment
Technical leadership experience, including mentoring engineers
English B2

Nice to have

Kubernetes
Understanding of Feature Flags for faster releases
CI/CD experience
Experience with testcontainers
Strong communication skills
Experience quickly learning complex architectures and codebases

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!