Front-end Developer

Sensor Tower Inc.; London; On-site; GBP 40,000 - 65,000; Full time

Job summary

A leading provider of market intelligence, Sensor Tower is seeking a Front-end Developer to enhance their web presence and support marketing initiatives. This role involves developing and maintaining high-performance websites, optimizing user experience, and collaborating with cross-functional teams. Ideal candidates are proficient in HTML, CSS, JavaScript, and React, with strong problem-solving skills. Enjoy a flexible work environment and benefits including health stipends and a generous time-off policy.

Benefits

Flexible time off

Health and wellness stipend

Monthly internet stipend

One-time home office stipend

Qualifications

• Proficiency in HTML, CSS, JavaScript, TypeScript, and modern front-end frameworks.
• Understanding of web security principles and SEO best practices.
• Strong problem-solving skills and ability to work independently.

Responsibilities

• Lead the development of Sensor Tower’s marketing website and ensure its quality.
• Continuously improve website architecture for scalability and performance.
• Optimize website performance, SEO, and conversion rates.

Skills

HTML

CSS

JavaScript

TypeScript

React

SEO best practices

Tools

MUI

GraphQL

Highcharts

Marketo

Contentful

Strapi

Webflow

Job description

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Fraud warning: It's common for scammers to create positions that look legitimate on other sites. To ensure your submission is considered, only apply for positions at Sensor Tower through our company website or through posts directly associated with Sensor Tower company profiles on sites such as LinkedIn, Indeed, BuiltIn or Hackajob. At no point will Sensor Tower ever ask for money, credit card, or bank account information to complete a job application. Communications received from Sensor Tower are only sent by e-mail addresses ending in @sensortower.com. All Sensor Tower interviews will be conducted via phone or Zoom. At no time will a conversation be moved to an alternative email outside of @sensortower.com or text. Should an issue arise that you feel we should be aware of, please contact us. Please provide your resume when applying.

To all recruitment agencies: Sensor Tower does not accept third-party resumes. Please do not send resumes to our jobs alias, Sensor Tower employees, or any other organization location. Sensor Tower is not responsible for any fees related to unsolicited resumes. Sensor Tower will not pay any third-party agency or company that does not have a signed agreement with Sensor Tower.

About this role:Sensor Tower is the leading provider of market intelligence and insights for the mobile app ecosystem. Our data-driven solutions empower businesses, developers, and marketers to make informed decisions and stay ahead in the competitive mobile landscape. We are looking for a skilled Front-end Developer to join our team and enhance our web presence, optimize user experience, and support our marketing and product initiatives. This role will involve building and maintaining high-performance, visually engaging, and user-friendly websites that drive engagement and business growth.

What You Will Focus On:

1. Lead the development of our Sensor Tower’s marketing website, taking ownership of the project’s direction, and quality.
2. Continuously improve the marketing website's architecture, ensuring scalability, maintainability, and performance.
3. Implement new features, landing pages, and updates to improve user experience and support business goals.
4. Optimize website performance, SEO, and conversion rates using best practices.
5. Ensure website security, accessibility, and compliance with industry standards.
6. Integrate third-party tools, APIs, and analytics for enhanced functionality.
7. Work on front-end initiatives for Sensor Tower’s product.
8. Conduct testing and debugging to identify and resolve technical issues.
9. Collaborate with marketing, design, and engineering teams to define priorities, gather requirements, and ensure seamless integration of UI/UX elements.
10. Stay up to date with the latest web development trends and technologies to continuously improve the website.

Skills We Are Interested In:

1. Proficiency in HTML, CSS, JavaScript, TypeScript and modern front-end frameworks (React, etc).
2. Nice to have: Experience with technologies such as MUI, GraphQL, Highcharts, and Marketo. While not required, familiarity with any of these will be an advantage.
3. Experience with headless CMS platforms (Contentful, Strapi, Webflow, or custom-built CMS).
4. Strong knowledge of SEO best practices, web analytics, and performance optimization.
5. Understanding of web security principles and best practices.
6. Strong problem-solving skills, attention to detail, and ability to work independently.
7. Excellent communication and collaboration skills.

If you’re passionate about front-end development and want to make an impact at a fast-growing technology company, we’d love to hear from you!

About Sensor Tower Sensor Tower cultivates responsibly sourced market intelligence that provides visibility into the trends shaping the global digital economy. Our customers use these insights to help them make better business decisions.

Why Sensor Tower? Our flexible work environment allows employees to live in greater connection with the people, places, and activities they love! Our benefits for full-time positions include:- Flexible time off so employees can shape their time away from work.- Health and wellness stipend to achieve and maintain a healthy lifestyle through physical and mental fitness.- Monthly internet stipend and a one-time $500 home office stipend. We are committed to equal employment opportunity regardless of race, color, religion, sex, national origin, sexual orientation, age, citizenship, marital status, disability, gender identity, and veteran status. We will consider qualified applicants with arrest and conviction records. If you have a disability or special need, please do not hesitate to let us know and we'll do our best to accommodate.