Principal Backend Engineer (Equity only) 2%

JR United Kingdom; Doncaster; On-site; GBP 70,000 - 100,000; Full time

Job summary

A dynamic social media platform is seeking a Principal Backend Engineer to lead its backend systems development. This hands-on leadership position involves defining technical vision, ensuring scalability, and mentoring a team of engineers while optimizing backend services for millions of users. The role is equity-only, offering a unique chance to contribute to a rapidly growing company.

Qualifications

• 8+ years of experience in backend development including 3+ years in leadership.
• Strong experience with AWS EKS and containerized environments.
• Deep understanding of API design and best practices.

Responsibilities

• Lead the development and optimization of backend services.
• Define technical roadmap for backend services aligned with business goals.
• Ensure efficient use of AWS resources to minimize costs.

Skills

C# .NET Core

Microservice architecture

AWS

CI/CD

API design

Problem-solving

Tools

Docker

Kubernetes

PostgreSQL

Redis

RabbitMQ

Grafana

Job description

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Principal Backend Engineer (Equity only) 2%, doncaster

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Client:

Location:

doncaster, United Kingdom

Job Category:

Other

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EU work permit required:

Yes

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Job Views:

3

Posted:

06.06.2025

Expiry Date:

21.07.2025

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Job Description:

About Luupli

Luupli is a dynamic social media platform revolutionizing how people connect and create. With a mission to foster meaningful interactions, empower creators, and champion inclusivity, Luupli is poised to redefine social media for the better. As we grow, we’re looking for a Principal Backend Engineer to lead the evolution of our backend systems. This role will drive the development of scalable, secure, and high-performance solutions that form the backbone of our platform. You’ll lead a talented engineering team, define the technical vision, and ensure our infrastructure supports millions of users seamlessly while preparing for future growth.

Role Overview

As the Principal Backend Engineer, you will lead the development and optimization of Luupli’s backend services. You will define the technical vision, architect scalable solutions, and ensure the backend infrastructure meets the evolving needs of our platform and users. This is a hands-on leadership role requiring deep technical expertise, strategic foresight, and a passion for delivering world-class backend systems.

Key Responsibilities

• Leadership and Strategy

Define the technical roadmap for backend services in alignment with business goals.

Lead and mentor a team of backend engineers, fostering a culture of technical excellence and collaboration.

Make architectural decisions that ensure scalability, performance, and security.

• Development and Deployment

Oversee the development and maintenance of backend microservices.

Ensure seamless deployment with CI/CD processes.

Drive integration of services with PostgreSQL, Redis, and message queues to ensure efficient data flow.

• Optimization and Performance

Monitor backend performance metrics, identifying and addressing bottlenecks proactively.

Optimize APIs for low latency and high throughput to support real-time user interactions.

Ensure efficient use of AWS resources to minimize costs without compromising performance.

• Quality Assurance and Security

Implement best practices for secure coding, ensuring compliance with industry standards.

Establish rigorous testing frameworks, including unit, integration, and load testing.

Ensure disaster recovery and high-availability solutions are in place.

• Collaboration and Communication

Work closely with frontend, DevOps, and product teams to deliver seamless end-to-end solutions.

Partner with data engineers to ensure effective data management and analytics pipelines.

Provide technical insights and updates to stakeholders, including executives and product managers.

Qualifications

• Must-Have:8+ years of experience in backend development, including 3+ years in a leadership role.
• Expertise in C# .NET Core and microservice architecture.
• Strong experience with AWS EKS and containerized environments (Docker, Kubernetes).
• Proficiency with PostgreSQL, Redis, and message queue systems (e.g., RabbitMQ, Kafka).
• Deep understanding of API design and best practices (REST, gRPC).
• Experience with CI/CD pipelines, monitoring tools (e.g., Prometheus, Grafana), and logging systems (e.g., ELK stack).Strong problem-solving, organizational, and communication skills.

Preferred:

• Experience with distributed systems, event-driven architectures, and CQRS/ES patterns.
• Familiarity with caching strategies, data partitioning, and performance tuning for large-scale systems.
• Knowledge of DevSecOps practices and implementing security at scale.
• Background in scaling backend systems to support millions of users.
• Familiarity with infrastructure-as-code tools (e.g., Terraform).

Compensation

This is an equity-only position, offering a unique opportunity to gain a stake in a rapidly growing company and contribute directly to its success. Equity Only (2%)