Senior Engineer

HelloKindred; Greater London; Hybrid; GBP 70,000 - 110,000; Full time

Job summary

HelloKindred is seeking a Senior Engineer to help build and enhance customer-facing identity and commerce platforms in a global streaming technology environment. You’ll work on React/Next.js applications, identity and authentication features, and third-party integrations while collaborating in a distributed international team.

The role emphasizes scalable, high-quality software delivery with modern web technologies and CI/CD, across hybrid work settings requiring two days in the office.

Qualifications

• Proven experience developing modern web applications using React.js and Next.js.
• Strong proficiency in TypeScript and Node.js development.
• Experience designing and consuming GraphQL APIs and services.
• Demonstrated experience with unit testing and test-driven development methodologies.
• Familiarity with agile software development practices and frameworks.
• Experience working with CI/CD tools such as Jenkins and Concourse CI.
• Knowledge of automated testing frameworks, including Microsoft Playwright.
• Strong understanding of software engineering best practices and code quality standards.
• Ability to collaborate effectively within distributed and cross-functional teams.
• Excellent problem-solving, analytical, and communication skills.
• Eligibility to obtain and maintain BPSS clearance

Responsibilities

• Develop and maintain customer-facing applications using React.js, Next.js, TypeScript, and Node.js.
• Build scalable solutions supporting identity, authentication, and commerce platform capabilities.
• Implement integrations with third-party partners and in-app purchase platforms.
• Develop and maintain GraphQL services and APIs.
• Apply test-driven development practices to ensure high-quality software delivery.
• Create and execute unit tests and automated test suites.
• Collaborate with product, engineering, and platform teams to define and deliver technical solutions.
• Participate in agile ceremonies and contribute to continuous improvement initiatives.
• Utilize CI/CD pipelines and deployment tools including Jenkins and Concourse CI.
• Troubleshoot, diagnose, and resolve application issues and performance bottlenecks.
• Ensure code quality through peer reviews, testing, and adherence to engineering standards.
• Contribute to the development of self-service customer account management capabilities.

Tools

React.js

Next.js

TypeScript

Node.js

GraphQL

Playwright

CI/CD

Jenkins

Concourse CI

Job description

HelloKindred are specialists in staffing marketing, creative and technology roles, offering a range of talent solutions that can be delivered on-site, remotely or hybrid.

Our vision is to make work accessible and people’s lives better.We do this by disrupting traditional employment barriers –connecting ambitious talent to flexible opportunities with trusted brands.

Job Description

Anticipated Contract End Date/Length: December 18, 2026
Work set up: Hybrid (2 days per week in office)

Our client in the Information Technology and Services industry is looking for a Senior Engineer to support the development and enhancement of customer-facing identity and commerce platforms within a global streaming technology environment. This role will contribute to delivering seamless customer experiences across multiple streaming services, supporting customer acquisition, authentication, account management, and third-party integrations. The successful candidate will work within a distributed international team and leverage modern web technologies to build scalable, high-quality solutions.

Responsibilities:

• Develop and maintain customer-facing applications using React.js, Next.js, TypeScript, and Node.js.
• Build scalable solutions supporting identity, authentication, and commerce platform capabilities.
• Implement integrations with third-party partners and in-app purchase platforms.
• Develop and maintain GraphQL services and APIs.
• Apply test-driven development practices to ensure high-quality software delivery.
• Create and execute unit tests and automated test suites.
• Collaborate with product, engineering, and platform teams to define and deliver technical solutions.
• Participate in agile ceremonies and contribute to continuous improvement initiatives.
• Utilize CI/CD pipelines and deployment tools including Jenkins and Concourse CI.
• Troubleshoot, diagnose, and resolve application issues and performance bottlenecks.
• Ensure code quality through peer reviews, testing, and adherence to engineering standards.
• Contribute to the development of self-service customer account management capabilities.

Qualifications

• Proven experience developing modern web applications using React.js and Next.js.
• Strong proficiency in TypeScript and Node.js development.
• Experience designing and consuming GraphQL APIs and services.
• Demonstrated experience with unit testing and test-driven development methodologies.
• Familiarity with agile software development practices and frameworks.
• Experience working with CI/CD tools such as Jenkins and Concourse CI.
• Knowledge of automated testing frameworks, including Microsoft Playwright.
• Strong understanding of software engineering best practices and code quality standards.
• Ability to collaborate effectively within distributed and cross-functional teams.
• Excellent problem-solving, analytical, and communication skills.
• Eligibility to obtain and maintain BPSS clearance

All your information will be kept confidential according to EEO guidelines.

Candidates must be legally authorized to live and work in the country where the position is based, without requiring employer sponsorship.

HelloKindred is committed to fair, transparent, and inclusive hiring practices. We assess candidates based on skills, experience, and role-related requirements.

We appreciate your interest in this opportunity. While we review every application carefully, only candidates selected for an interview will be contacted.

HelloKindred is an equal opportunity employer. We welcome applicants of all backgrounds and do not discriminate on the basis of race, colour, religion, sex, gender identity or expression, sexual orientation, age, national origin, disability, veteran status, or any other protected characteristic under applicable law.

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