At a Glance
- Tasks: Build high-quality Android features and collaborate with a dynamic team.
- Company: Join a leading fintech company aiming to revolutionise mobile banking in Latin America.
- Benefits: Competitive salary, hybrid work setup, stock options, and performance bonuses.
- Other info: Be part of a growing mobile team focused on quality and innovation.
- Why this job: Make a real impact by creating intuitive apps for millions of users.
- Qualifications: 2-4 years in Android development with strong Kotlin skills.
The predicted salary is between 50000 - 60000 £ per year.
We’re looking for a Mid Android Engineer who’s hungry to grow and excited to build high-quality mobile experiences for millions of users. You’ll be contributing clean, maintainable Kotlin code and helping us deliver polished mobile experiences as we scale.
You’ll join our Core Product Team as we double the size of our mobile team, helping to build and scale the ARQ experience – from our flagship Android app to new product lines like Premium, Stock Trading, Support Chat, and other financial products on the roadmap. Our goal is to build the best fintech app in Latin America, and our mobile engineers play a key role in making that happen every day.
What You’ll Be Doing
- Build and ship high-quality Android features across a broad range of product areas, from Support Chat to Stock Trading.
- Write clean, maintainable Kotlin code using modern Android tools and frameworks.
- Collaborate closely with Product, Design, Backend, and other Mobile engineers to deliver features end-to-end.
- Own features from implementation through to launch, making sure they are reliable, polished, and ready for production.
- Contribute to app quality across performance, stability, error states, crash handling, and UX polish.
- Participate in code reviews and help maintain strong engineering standards.
- Learn quickly, take ownership, and grow your impact as the mobile team scales.
What You’ll Need
- 2–4 years of professional experience in Android development, ideally building consumer-facing apps.
- Strong proficiency in Kotlin and Android Studio.
- Good understanding of Android fundamentals, including app lifecycle, networking, storage, permissions, and performance.
- Familiarity with modern Android tools and frameworks such as Jetpack, Coroutines, and Compose.
- Ability to write clean, maintainable code and follow professional software production routines.
- Good understanding of app architecture and common patterns such as MVVM or MVI.
- Strong product-quality mindset – you care about smooth UX, edge cases, device differences, reliability, and the overall user experience.
- Ability to work independently, collaborate well with others, and learn quickly.
- Good knowledge of Android from a user perspective – you know what makes an app feel intuitive, polished, and easy to use.
Why You’ll Love It Here
- Competitive salary
- Hybrid setup with 3–4 days in the office per week
- Sign-on stock options, so you own part of what you build
- Discretionary performance bonus
- The latest tools and technology
- A growing mobile team with a high bar for product quality
- A world-class team that will challenge and grow your skills
- The opportunity to help build the best fintech app in Latin America
Android Engineer employer: Castleisland
Join a dynamic and innovative fintech company that is dedicated to building the best mobile experiences for millions of users across Latin America. As a Mid Android Engineer, you'll enjoy a competitive salary, hybrid work setup, and the chance to own part of what you build through sign-on stock options. With a strong focus on employee growth, collaboration, and cutting-edge technology, you'll be part of a world-class team that values quality and creativity in every project.
StudySmarter Expert Advice🤫
We think this is how you could land Android Engineer
✨Join Local Tech Meetups
Get out there and mingle with fellow developers by joining local tech meetups. It’s a fantastic way to meet people who might be working at Castleisland or know someone who does. Plus, you can pick up some trendy tech skills and trends while you're at it!
✨Contribute to Open Source Projects
Show off your coding chops by jumping into open-source projects. Not only does this give you practical experience, but it also gets you noticed in the dev community. You'll create a killer portfolio that speaks volumes about your skills to Castleisland.
✨Tap into Online Developer Communities
Don’t underestimate the power of online developer communities like GitHub, Stack Overflow, and even Reddit. Participate in discussions, share your projects, and build your visibility. We can often find opportunities through these channels that can lead to a full-time gig at companies like Castleisland.
✨Explore Job Boards Specifically for Tech Roles
Keep your eyes peeled on job boards that focus on tech roles. Sites like TechCareers or Stack Overflow Jobs can often have listings for companies like Castleisland that might not show up on broader job sites. Make it a habit to check these regularly, and don’t hesitate to apply directly through our website!
We think you need these skills to ace Android Engineer
Some tips for your application 🫡
Show off your coding skills:When applying for a software engineering role, it's super important to showcase your coding skills. Make sure your CV includes your tech stack, any relevant programming languages you’re comfortable with, and examples of projects you've worked on. If you have a GitHub profile, link it up! We love to see code in action.
Tailor your portfolio:For a full-time role, we’d expect to see some solid examples of your work in your portfolio. Make sure to include at least two or three projects that highlight your problem-solving skills and your ability to work with different technologies. Focus on the projects that are most relevant to the position at Castleisland.
Craft a killer cover letter:Your cover letter is your chance to stand out—make it personal! Explain why you want to work at Castleisland and how your skills align with the role. Show us your passion for software development. We dig enthusiastic candidates who understand the value of collaboration and continuous learning!
Be clear and concise:When it comes to writing your CV and cover letter, clarity is key. Avoid jargon that could confuse us and stick to simple, direct language. Highlight your achievements with quantifiable results where possible, and keep everything easy to read. A well-organised application goes a long way!
How to prepare for a job interview at Castleisland
✨Brush Up on Your Coding Skills
For a full-time software engineering role, it's crucial that we stay sharp with our coding abilities. Expect technical questions that might involve solving problems on the spot or discussing algorithms. Practise on platforms like LeetCode or HackerRank to get comfortable with the types of questions that often come up.
✨Know Your Tools and Frameworks
Make sure we’re well-acquainted with the tools and technologies listed in the job description. Familiarise ourselves with any specific frameworks or programming languages mentioned. If Castleisland uses React or Node.js, for instance, be ready to discuss how we’ve used them in previous projects or coursework.
✨Showcase Your Projects
Bring along a portfolio that highlights our best work. This could be code samples, GitHub repositories, or any side projects we’ve built. Make sure we can talk through our thought process for each project, especially the challenges we faced and how we solved them—this shows our problem-solving skills in action.
✨Prepare for Behavioural Questions
While technical skills are key, full-time positions also require cultural fit. Be ready to discuss our previous experiences and how we handle teamwork, conflict, and deadlines. Brush up on the STAR method—Situation, Task, Action, Result—to clearly articulate our past experiences when discussing how we've contributed to a team.
