Senior Backend Developer

Blip; Porto; On-site; EUR 75,000 - 95,000; Full time

Job summary

Blip, a leading tech company focused on software engineering for sports entertainment, seeks a Senior Backend Developer in Porto. You’ll own the full lifecycle of backend services, guide junior engineers, and shape architecture across multiple components and teams, delivering robust Java-based solutions.

Join a culture that blends cutting-edge technologies with a people-first mindset, emphasizing collaboration, quality, and scalable platforms for a global audience.

Qualifications

• 5+ years of Java backend experience (Java 8+ preferred).
• Experience with high-concurrency, high-availability platforms.
• Familiarity with client-server protocols (REST/SOAP).
• Strong design pattern know-how and code reuse practices.

Responsibilities

• Own the full lifecycle of backend services and components.
• Guide and mentor junior team members.
• Propose and implement scalable architectures and tooling.
• Write tests and document technical solutions.

Skills

Java

Communication

OOP Principles

Tools

Scala

Kafka

Akka

Memcached

Apache Storm

Apache Cassandra

Zookeeper

RabbitMQ

REST

SOAP

Job description

Blip is a leading tech company focused on software engineering solutions for sports entertainment.

We operate at scale. As part of Flutter Entertainment, we play an essential role in the Group's goal of becoming the global leader in online sports betting and iGaming, developing innovative products and platforms for over 14 million monthly customers worldwide.

We are serious about Tech. We are problem-solvers with big ambitions, keeping a people-first mindset at the core of our work. We prioritize flexibility as we strive to deliver the best technological products and tackle the greatest industry challenges.

Recognizing that everyone brings their own strengths, backgrounds and new perspectives, we empower you to be yourself. That uniqueness shapes the culture of belonging we are so proud of.

The Role...

As a Senior Backend Developer, you're part of an agile Software Development Team and you're responsible for the full lifecycle of an application. You will be trusted to guide a team of your own on the best approach for large pieces of work that span multiple components and teams and as an expert in the area, you'll the go-to person for big ideas and problem-solving. With your large expertise, we know that you'll add a lot of value to the team - be it by suggesting alternative methodologies that may be more efficient, actively improving the tooling to improve use cases, or even designing and developing a technical solution or new processes.

You can expect to use cutting-edge technologies to deliver amazing value and the best product to our customers while scaling our platform to meet the demands of worldwide markets. You will be required to program well-designed, testable, efficient code to solve business needs, as well as test and document the implemented solutions.

What You’ll Bring

• Our product's backend runs in Java, so a proven track record of at least 5 years working with this technology (preferably Java 8+) would be ideal - but... If you have extensive experience working with similar OOP languages, that is not a problem as the underlying concepts are similar - just know that if you join us you'll be working with Java.
• Our teams also work with technologies such as Scala, Kafka, Akka, Memcached, Apache Storm, Apache Cassandra, Zookeeper, RabbitMQ, and some others... Ideally, you should have working experience with most/all of these but if not, don't worry - we will have your back!

We'd Like You To Master In

• Experience working with a high concurrency/high transactional/highly available platform;
• Familiarity working with Client-server protocols such as SOAP, and REST;
• Expertise using established design patterns and encouraging appropriate use of reusability techniques (e.g. library extraction, new component creation);

As a Senior Backend Developer at Blip, it's not just about the technical knowledge it's about helping and guiding the junior members of your team so that they can grow alongside you. This means that we'll be expecting a strong set of soft skills as well - excellent communication (in Portuguese and English), common sense, and a passion for the art of problem-solving.

This is what you should have. What do we have, you ask? Well...you can check our amazing perks @ benefits right here!

So ...Are you in?

Equal opportunities

At Blip, we are committed to creating a diverse and inclusive workplace. We strongly encourage people from all backgrounds, ways of thinking, and working to apply. We are committed to including everyone regardless of their race, disability, age, gender identity, sexual orientation, and religion. Everyone brings different perspectives and experiences; you don’t have to meet all the requirements listed to apply for this role.

If you need any adjustments to apply for the position and to ensure this role aligns with your needs, please send an email to [e-mail].

We will only respond to inquiries related to disabilities.