Senior Developer / Tech Lead

Senior (4-6 Years)

Remote

Portuguese Required English Required

We are looking for a Senior Developer / Tech Lead to work fully remote who's eager to embark on an exciting new opportunity! Apply here LINKWhat is this challenge about

Lead the design, development, and evolution of backend systems (PHP/Symfony and Go), from architecture to deployment;

Define technical direction and make key architectural decisions, including transitioning monoliths to microservices;

Build and scale distributed systems, improving performance, reliability, and cost efficiency;

Own infrastructure and DevOps practices (CI/CD, AWS, Docker, Kubernetes), ensuring zero-downtime deployments and strong observability;

Apply best practices in security, performance optimization, and system stability;

Use and promote AI tools to improve development workflows and team productivity;

Mentor engineers, uphold high engineering standards, and foster team autonomy;

Ensure high availability, manage incidents, and maintain production stability;

Collaborate cross-functionally to translate business needs into scalable technical solutions.

What we are looking for

+7 years of experience;

Strong experience with PHP (Symfony);

Experience with Golang for high-performance services;

Experience with Kafka and event-driven architectures (e.g., Outbox Pattern);

Proficiency with Redis (caching and distributed systems support);

Solid understanding and practical application of DDD (Domain-Driven Design);

Experience with AWS (EC2, RDS, MSK);

Hands-on experience with Docker and Kubernetes;

Experience building and maintaining CI/CD pipelines;

Strong experience with REST APIs and integrations;

Familiarity with monitoring and observability tools;

Fluency in English (minimum B2).

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, 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, Dev-Ops @ KWAN

Grab this opportunity, apply now!

What You Can Expect as a KWANer

Respect isn’t optional here

You’re trusted to deliver and supported to speak up.

Dedicated People Experience Partner

Someone accountable for your growth, not your allocation.

Continuous learning, built in

Learning that keeps pace with the systems you build.

Recognition that’s visible

Your impact doesn’t go unnoticed. Through our Rocket Points System, we constantly recognize your contributions.

A culture you can feel

From movie and quiz nights to dinners and our annual summer gathering, we don’t just work together - we build real connections.

Flexible spaces to work your way

Remote-first, with physical hubs when you want connection.

Kwaner's testimonials

As a KWANer alumni, choosing KWAN - the best Portuguese company I ever worked for - as our outsourcing partner was an obvious choice: KWAN and Team Resilience’s values and culture are very much aligned.

KWAN’s proactive initiative was a massive benefit. We needed to drastically increase our development staff and KWAN was able to provide the solution by creating a highly skilled team of developers, who fit the cultural and technical requirements.

In an industry such as the tech one, where computers play a major role, it’s refreshing to account on a partner that is human, open, sensitive, and understandable, such as KWAN.