Senior Software Engineer

The Portfolio Group; City Of London; On-site; GBP 70,000 - 90,000; Full time

Job summary

A technology company in London is seeking a Senior Software Engineer to develop scalable applications using Node.js and Python. You will work collaboratively, lead innovations, and mentor team members. Ideal candidates will have strong experience in microservices and DevOps practices, alongside a proactive and agile mindset.

Qualifications

• Proven experience in Node.js and Python.
• Strong understanding of microservices, CI/CD, and DevOps practices.
• Confident writing performant frontend code.
• Agile mindset with excellent communication skills.

Responsibilities

• Build and maintain scalable, secure applications using Node.js and Python.
• Write clean, test-driven code with a focus on performance and usability.
• Collaborate across teams to deliver iterative improvements.
• Lead on innovation and continuous delivery best practices.
• Support and mentor others while staying hands-on with the tech.

Skills

Node.js

Python

Microservices

CI/CD

DevOps

Frontend code performance

Agile mindset

Problem solving

Job description

Overview

We're looking for a Senior Software Engineer to join a growing team building smart, scalable tools used by professionals across a range of industries. You'll work onsite in London, helping shape robust backend services and responsive user experiences using Node.js and Python.

What You'll Do

• Build and maintain scalable, secure applications using Node.js, Python, and modern architectural patterns
• Write clean, test-driven code with a focus on performance and usability
• Collaborate across teams to deliver iterative improvements
• Lead on innovation and continuous delivery best practices
• Support and mentor others while staying hands-on with the tech

What We\'re Looking For

• Proven experience in Node.js and Python
• Strong understanding of microservices, CI/CD, and DevOps practices
• Confident writing performant frontend code
• Agile mindset with excellent communication skills
• Enthusiastic about solving problems and sharing knowledge

Nice to Have

• Experience with Drupal 7
• Familiarity with serverless architectures, quality engineering, or modern frontend frameworks

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