
Backend Engineer
MastarRec · London, City of London, United Kingdom · Remote
Weak hiring record · median 292 days open
All reasons
- Open 339 days
- 97% of this employer's openings are over 60 days old
In its favour
- Still listed on the employer's own board
- Publishes a salary range
Job Description
We’re hiring a talented and experienced Backend Engineer to join an agile product development team working on modern web applications and scalable platforms. You’ll be responsible for building, maintaining, and optimising server-side logic and APIs, and contributing to full-stack solutions using JavaScript/TypeScript, Node.js, and React.
This is an opportunity to work in a fast-moving environment. Where innovation, reliability, and clean code are valued, supporting products within FinTech, Healthcare Technology, or SaaS ecosystems.
Job Responsibilities
- Design, build, and maintain scalable server-side applications and RESTful APIs using Node.js, Express, or similar frameworks.
- Collaborate with frontend engineers to build seamless integrations using React.js or similar JavaScript frameworks.
- Write clean, well-tested, and documented code that adheres to modern development best practices.
- Implement CI/CD pipelines and ensure reliable code deployment and integration.
- Work cross-functionally with Product Managers, Designers, and QA to ship high-quality features.
- Optimize system performance, troubleshoot production issues, and participate in code reviews.
- Contribute to architectural decisions and refactor legacy systems when required.
Requirements
Required Skills
- Strong hands-on experience with Node.js, Express, and API development
- Proficiency in JavaScript/TypeScript
- Solid understanding of SQL/NoSQL databases (e.g., PostgreSQL, MongoDB)
- Experience with CI/CD pipelines and containerization (Docker)
- Experience building and consuming RESTful or GraphQL APIs
- Familiarity with version control tools (e.g., Git, GitHub)
Desired Skills
- Frontend development experience with React.js, Next.js, or similar
- Cloud deployment experience (AWS, Azure, GCP)
- Experience in micro services architecture
- Familiarity with Agile methodologies and TDD
- Prior experience in FinTech, Healthcare, or SaaS is a plus
Benefits
Job Benefits
- Competitive salary and performance bonuses
- Private health insurance and wellness support
- Remote-first policy with flexible working hours
- Learning & development allowance
- Equity / stock options (depending on client)
- Modern tech stack, collaborative team culture
Skills
- JavaScript
- TypeScript
- Node.js
- React
- Express
- SQL
- PostgreSQL
- MongoDB
- Docker
- GraphQL
- Git
- GitHub
- Next.js
- AWS
- Azure
- GCP
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