Cross-platform SDK Software Engineer

Open Position

Cross-platform SDK Software Engineer

ABOUT INVERTASE

At Invertase, we're dedicated to empowering developers with tools and resources to transform their experience by engineering exceptional applications. We partner with industry-leading technology companies to develop and maintain world-class SDKs and developer tools.

LOCATION

Fully Remote (UK-Based Only)

OPPORTUNITY

We are looking for a Cross Platform SDK Software Engineer to join our Cross-platform team. In this role, you will develop and maintain the cross-platform SDKs that power applications for millions of developers, like React Native Firebase. You’ll join a talented and collaborative team, solving complex technical challenges and shaping the technical direction of our cross-platform SDKs, with a focus on Web & Mobile.

At Invertase, we empower you with the technical agency to navigate complex codebases, identify friction points, and lead the delivery of impactful tools. We provide a high-trust, remote-first environment equipped with top-tier tech and AI-assisted tools; a workplace designed for professional engineers who take pride in managing their own work, supporting their team, and delivering engineering excellence.

WHO YOU ARE

To excel in our Cross-platform team, you should recognise yourself in the following:

• Professional Maturity: You have demonstrated experience in professional software environments. You prioritise maintainability, clean documentation, and the long-term impact of your architectural decisions.
• Cross-platform versatility: You are not defined by a single framework or language. You have the curiosity to move across the entire mobile and web stack, navigating React Native, web and native codebases to ensure seamless integration and performance.
• AI-augmented Engineering. You utilise LLM-assisted tools like Cursor and Claude alongside agentic systems to balance active development with ongoing maintenance. You have the technical depth to orchestrate these tools and ensure that architectural integrity and code quality remain your own.
• Proactive Communicator: You understand that remote work thrives on transparency. You lead technical demos, share your progress asynchronously, and provide clear updates to both internal team members and external stakeholders without being prompted to.

KEY RESPONSIBILITIES

• SDK Development: Develop well-documented cross-platform SDKs that bridge the gap between frameworks (ReactNative/Web) and native mobile environments.
• Developer Experience: Design intuitive, robust, and comprehensive APIs, developer tools, and documentation that enhance productivity for millions of users worldwide.
• Technical Ownership: Debug and resolve complex issues related to performance and integration while maintaining high code quality through rigorous reviews.
• Community & Client Success: Engage with the open-source community on GitHub and collaborate directly with engineers at leading tech partners to deliver high-quality solutions.
• Testing & DevOps: Own your deployment pipeline by writing unit/integration tests and participating in CI/CD workflows.
• Innovation & Mentorship: Explore new technologies, deliver innovation of SDK development, and mentor junior developers.

SKILLS AND EXPERIENCE

• Engineering Experience: minimum 3-5 years of experience in a software engineering role, with a focus on cross-platform development, particularly with React Native.
• Programming Languages: Proficiency in JavaScript, TypeScript, and native code, with the competence to navigate and contribute to supporting codebases.
• Front-End Fundamentals: Understanding of HTML, CSS, and modern front-end frameworks (e.g., React, Angular).
• API Development: Experience developing and consuming web APIs and RESTful services.
• GitHub & Open Source: Familiarity with GitHub workflows and a passion for open-source development.
• AI-Assisted Development: Proficiency using AI development tools as part of the engineering workflow, with curiosity for exploring new tools and improving how the team works.
• Communication: Strong communication and interpersonal skills, with the ability to convey technical information effectively.
• DevOps: Hands-on experience with DevOps processes, particularly CI/CD pipelines.

CHALLENGES & OPPORTUNITIES

• Collaborate with Industry Leaders: Collaborate directly with engineers at other leading technology companies to define the future of their developer platforms..
• Drive Open Source Innovation: Contribute to and lead open-source projects, fostering a collaborative community and pushing the boundaries of SDK development.
• Become a Recognised Expert: Showcase your work through open-source contributions, technical blog posts, conference presentations, and community engagement.
• Make a Global Impact: Develop tools and resources that empower millions of developers worldwide to build better applications and shape the future of the app development landscape.

BENEFITS

• Competitive Compensation: A salary and benefits package between £35,000 and £65,000 that reflects your skills and experience.
• Remote Freedom: Fully remote work within the UK with flexible hours tailored to your productivity, including a work from anywhere policy.
• Growth-Oriented Culture: We invest in your professional development with training, mentorship, and continuous learning opportunities.
• Top-Tier Tech: We provide you with the best hardware, software, and resources to do your best work.
• Comprehensive Health Benefits: We offer private medical insurance covering medical, mental health, dental, and vision needs.
• Open Source Friendly: We support your involvement in OSS projects with a fair and balanced IP agreement, encouraging contributions, even during work hours.