At a Glance
- Tasks: Join our team to design and develop high-performance mobile applications using React Native.
- Company: Mattermost is a leading collaborative workflow solution for critical industries like defence and security.
- Benefits: Enjoy remote work flexibility, competitive pay, and the chance to contribute to open-source projects.
- Other info: We value diversity and encourage applicants from all backgrounds to apply.
- Why this job: Make a real impact in high-stakes environments while collaborating with a talented, senior team.
- Qualifications: 3+ years of React Native experience and a degree in Computer Science or related field required.
The predicted salary is between 36000 - 60000 £ per year.
At Mattermost, we build the #1 collaborative workflow solution for defense, intelligence, security, and critical infrastructure organizations. Trusted by governments, financial institutions, and technology companies, our platform enables secure, efficient operations for the world’s most critical teams.
We’re dedicated to empowering organizations to operate with confidence, reducing risks, and accelerating productivity. Guided by our core values of Customer Obsession, Earn Trust, Self Awareness, Ownership and High Impact, we collaborate closely with our customers to deliver solutions that meet complex needs and drive success.
Mattermost is seeking a talented and passionate React Native Engineer to join our mobile engineering team and help deliver world-class mobile experiences for mission-critical industries like defence, intelligence, and critical infrastructure. You\'ll be responsible for building and maintaining our React Native applications that enable secure, real-time collaboration for organisations where reliability and security are non-negotiable.
As a React Native Engineer at Mattermost, you\'ll work closely with cross-functional teams to create mobile solutions that solve complex communication challenges in high-stakes environments. Your work will directly impact how critical organisations coordinate, share information, and respond to urgent situations. This role offers the unique opportunity to contribute to our open-source platform while building mobile applications that serve some of the world\'s most important missions.
Do you have a passion for designing and developing high-impact products? Do you want to work with a well-oiled, collaborative and highly senior team? Do you want to make an impact on open source? Help us build and grow one of the largest React Native and Go open-source projects.
Responsibilities Include:
- Design, develop, and maintain high-performance capabilities for the Mattermost React Native application for iOS and Android platforms
- Build responsive, accessible mobile interfaces that work seamlessly across different devices and screen sizes
- Implement secure communication features, push notifications, and real-time messaging capabilities
- Optimise mobile app performance, including bundle size, startup time, and memory usage
- Collaborate with backend engineers to integrate mobile apps with APIs and ensure smooth data synchronisation
- Contribute to Mattermost\'s open-source React Native codebase, sharing solutions with the broader developer community
- Work with product managers and designers to translate user requirements into technical solutions and prototypes
- Implement comprehensive testing strategies including unit tests and automated end-to-end testing
- Debug and resolve mobile-specific issues across different platforms, devices, and operating system versions
- Participate in code reviews and provide mentorship to colleagues on mobile best practices
- Stay current with tools, libraries and frameworks including advancements in AI/LLM tools and best practices
- Ensure our mobile application meets strict security and compliance requirements for enterprise and government clients
Requirements:
- BS in Computer Science, Computer Engineering, or related field/experience
- 3+ years of professional experience developing mobile applications with React Native
- Experience with native iOS and Android development concepts and the ability to write native modules when needed
- Solid understanding of mobile app deployment processes for both App Store and Google Play Store
- Proficiency with AI/LLM tools to improve and accelerate development
- Knowledge of mobile-specific patterns including navigation, offline functionality, and platform-specific UI guidelines
- Experience with state management libraries (Redux, Zustand, or similar) and async data handling
- Proficiency with reactive programming patterns using RxJS and experience with local database solutions like WatermelonDB
- Familiarity with mobile testing frameworks and debugging tools for React Native applications
- Understanding of mobile security best practices and secure coding principles
- Strong problem-solving skills and ability to work independently in a remote, distributed team environment
- Excellent written and verbal communication skills for collaborating across time zones
Preferences:
- Previous experience building end user products for enterprises or security-focused users
- Contributions to open-source projects
- Knowledge of accessibility standards and implementing inclusive mobile experiences
- Has worked fully remotely with global teams
- Expertise in defence, intelligence, or security-focused workflows
Mattermost takes a market-based approach to pay and pay may vary depending on your location. The successful candidate’s starting pay will be determined based on job-related skills, experience, qualifications, work location, and market conditions. These ranges may be modified in the future.
Mattermost is an EEO Employer, We are a remote-first, open-source company.
We are continually working to expand our hiring in more countries and regions, ensuring compliance with local laws and regulations, which takes time.
Mattermost values your unique perspective—we welcome all applicants. We encourage individuals from all backgrounds to apply and are committed to assessing candidates based on their skills and qualifications. We do not tolerate discrimination against staff or applicants based on race, religion, national origin, age, disability, pregnancy status, veteran status, or other personal characteristics.
If you require accommodations during the interview process, please let us know—we’re happy to assist.
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React Native Engineer New United Kingdom employer: Mattermost, Inc.
Mattermost is an exceptional employer that champions a remote-first, open-source culture, fostering collaboration and innovation among its talented teams. As a React Native Engineer, you'll enjoy the flexibility of working from anywhere while contributing to impactful projects that enhance security and communication for critical industries. With a strong commitment to employee growth, mentorship opportunities, and a focus on diversity and inclusion, Mattermost provides a rewarding environment for those looking to make a meaningful difference in the tech landscape.
StudySmarter Expert Advice🤫
We think this is how you could land React Native Engineer New United Kingdom
✨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 Mattermost, Inc. 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 Mattermost, Inc..
✨Tap into Online Developer Communities
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We think you need these skills to ace React Native Engineer New United Kingdom
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 Mattermost, Inc..
Craft a killer cover letter:Your cover letter is your chance to stand out—make it personal! Explain why you want to work at Mattermost, Inc. 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 Mattermost, Inc.
✨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 Mattermost, Inc. 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.
