> Markdown version of [/jobs/ext/3226629-senior-backend-engineer](https://www.wearedevelopers.com/jobs/ext/3226629-senior-backend-engineer). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md).

---

# SENIOR BACKEND ENGINEER

- **Company:** Hola Prime
- **Location:** Milton Keynes, UK
- **Experience:** Expert
- **Contract:** Permanent contract
- **Skills:** JavaScript (Programming Language), Microsoft Excel, Amazon Web Services, Databases, Data Validation, Database Models, Software Design Patterns, PostgreSQL, Node.Js, Object-Oriented Software Development, Query Optimization, Software Engineering, SQL Databases, TypeScript, Backend, Api Design, Serverless Computing
- **Published:** September 8, 2026
- **Apply:** https://www.collegerecruiter.com/job/2840617477-senior-backend-engineer

## About the Role

* Database Mastery: You're a SQL guru, particularly with PostgreSQL, handling query optimization, data migrations, and database modeling.
 * Solid Grasp of OOP and Design Patterns: Strong understanding of object-oriented programming principles and design patterns, with experience in building and extending classes
 * Scalability Focus: Experience in designing systems for scalability, ensuring they manage rapid growth and increasing demands efficiently.
 * High-Volume Performance: Proven expertise in optimizing systems for large transaction volumes, handling concurrency, idempotency, and performance under load.
 * API Development: Skilled in building APIs, including input validation, JWT tokens, and ensuring security & scalability through queue-based systems.
 * Experience: at least 8 years of experience as a Software Engineer., * Have Fintech experience: experience with fintech products running 24/7 on major cloud vendors.
 * Familiar with Serverless Architecture: experience with serverless architecture on AWS.
 * Understand FinTech: knowledge of the Fintech Industry and its unique challenges

## Description

* Expertise in Backend Development: Strong proficiency in Node.js, TypeScript/JavaScript best practices, along with experience in at least one other server-side language., * Excel in Application Development: You thrive in designing, coding, testing, and maintaining applications using the tech stack mentioned above.
 * Thrive in Remote Collaboration: Excel in a remote-first environment with proactive communication and strong asynchronous collaboration skills to ensure alignment and effective teamwork. You've successfully worked in distributed teams
 * Blending Autonomy and Collaboration: You take ownership of projects while excelling in team environments, driving shared success.
 * Communicate Complex Ideas Easily: You can clearly explain technical concepts to both technical and non-technical stakeholders.
 * Solve Problems with Optimism: You're passionate about solving customer problems with your coding superpowers, and approach challenges with Default Optimism whilst maintaining a balanced perspective
 * Business-Focused Development: You take a business-focused approach to software development, with a keen eye on delivering high-value outcomes for our clients.
 * Genuine Care: You embody our core value of Genuine Care, understanding how your work impacts our customers.