Software Engineer Intern

2 Months ago • Upto 1 Years • Backend Development • Game Design

Job Summary

Job Description

King is seeking extraordinarily skilled Software Development Interns for their Summer 2025 program in Barcelona. Interns will contribute to improving and maintaining the company's cross-platform mobile engine, editor, and toolchain. Responsibilities include designing, developing, and implementing engaging game features and optimizations using C++; debugging and resolving performance issues; collaborating with cross-functional teams (designers, artists, QA); and participating in brainstorming sessions. The internship offers hands-on experience in a fast-paced environment, focusing on enhancing player experiences and furthering understanding of game technology.
Must have:
  • Strong C++ and OOP knowledge
  • Debugging & optimization skills
  • Understanding of client-server architecture
  • Interest in game mechanics & development
  • Problem-solving & attention to detail
  • Excellent communication & collaboration
Good to have:
  • Proficiency in Java
  • Excellent English communication

Job Details

Craft:

Technology & Development

Job Description:

Software Developer Intern – Summer 2025 

We are looking for extraordinarily skilled Developer Interns from a variety of backgrounds and interests to join our Kingdom this Summer! 

Your Role Within the Kingdom


Are you a C++ enthusiast with a passion for games and interactive experiences? Join us as a Software Development Intern and contribute to improving and maintaining our cross-platform mobile engine, editor, and toolchain. You will collaborate with developers to refine and develop new features that support dozens of live game teams, helping artists, coders, and designers bring their ideas to life. This hands-on role offers the opportunity to work in a fast-paced environment, enhance player-facing experiences, and deepen your understanding of game technology while continuously learning from an experienced team.


Your Responsibilities

  • Work alongside client developers to design, develop, and implement engaging game features and optimizations.
  • Understand game requirements and translate them into clean, efficient, and scalable C++ code.
  • Debug and resolve issues related to game performance and functionality across multiple platforms.
  • Collaborate with cross-functional teams, including game designers, artists, and QA, to ensure feature quality and smooth integration.
  • Participate in brainstorming sessions and development discussions to contribute ideas and refine features.

Skills to Create Thrills

  • Strong knowledge of C++ programming and object-oriented design.
  • Familiarity with debugging tools and performance optimization techniques.
  • Basic understanding of client-server architecture and network programming.
  • Interest in interactive systems, game mechanics, and feature development.
  • Strong problem-solving skills and attention to detail.
  • Excellent communication and collaboration skills.

Tasty Bonus Skills:

  • You should be a current student or recently completed your studies
  • Excellent communication skills in English and great organization skills
  • Creative problem-solving skills
  • The ability to work well, both autonomously, and as part of a larger team
  • Attention to detail and accuracy
  • Proactive, enthusiastic, and results driven with an openness to feedback
  • Ability to use own initiative and motivation to meet deadlines and set priorities
  • Passionate about building technology and games
  • Proficiency in Java

The skills listed above are intended to portray the range of roles we have available; you do not need to possess all of these skills to apply! We will look at your own individual skill set and determine which team you would be best suited to.
The brilliant experience we give our players comes from the diversity and experience of our people. A great saga needs all sorts of heroes. That’s why we hire all sorts of talent.
We love hearing from anyone who is enthusiastic about changing the games industry. Not sure you meet all qualifications? Let us decide! Research shows that women and members of other under-represented groups tend to not apply to jobs when they think they may not meet every qualification, when, in fact, they often do! We are committed to creating a diverse and inclusive environment and strongly encourage you to apply.

We love hearing from anyone who is enthusiastic about changing the games industry. Not sure you meet all qualifications? Let us decide! Research shows that women and members of other under-represented groups tend to not apply to jobs when they think they may not meet every qualification, when, in fact, they often do! We are committed to creating a diverse and inclusive environment and strongly encourage you to apply. 

Want to join our Kingdom? 

Apply now! Positions are available in Barcelona, applications need to be in English. Our internships will last for 3 months, beginning in June 2025 and ending in September 2025. Please note: our application deadline is 17th February, however we recruit on an ongoing basis, so early application is advised to avoid disappointment. 

 We are committed to working with and providing reasonable assistance to individuals with physical and mental disabilities. If you are a disabled individual requiring an accommodation to apply for an open position, please email your request to General employment questions cannot be accepted or processed here. Thank you for your interest 

About King

At King, we're Making the World Playful. Heard of Candy Crush? We're the creators behind it. With game studios in Stockholm, Malmö, London, Barcelona and Berlin, and offices in Dublin, San Francisco, New York, and Malta, we have a 20-year history of delivering some of the world's most iconic games in the mobile gaming industry and are on a mission to level-up the little moments for our more than 200 million active monthly users. But we aren't just crushing it with candies, we're also behind Farm Heroes, Bubble Witch, Pet Rescue and loads of other sweet games. As a leading interactive entertainment company for the mobile world, King is part of Activision Blizzard, which was acquired by Microsoft.

A Great Saga Needs All Sorts of Heroes

King strives to be a place where everyone can be their most authentic self. We recognize that diversity, equity and inclusion is a vital and continuous conversation, and that change only happens when we all come together. It’s our mission to build a diverse and inclusive Kingdom for our people, players, and community.

Making the World Playful

Making the World Playful is our mission – it’s the thread that connects our people, our players, and our passion for our games. Let’s face it, who doesn’t love a bit of fun?

Kingsters are seriously playful: creative thinkers who balance art and science to bring moments of magic to millions daily. But our players aren’t the only ones that can level-up. We’re always looking for ways to champion each other and make what’s already great, even better.

So, if this feels like a fun way to spend your days, and you share our passion, our values, and our hunger to shape the future, join us in Making the World Playful.

Applications need to be in English.
Discover King at

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About The Company

At King, we’re Making the World Playful. Heard of Candy Crush? We’re the creators behind it and loads of other sweet games like Farm Heroes.

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