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Vargo Group
Senior Software Engineer

Senior Software Engineer

Remote

London, United kingdom

£ 80,000 /year

Senior

Full Time

22-01-2026

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Skills

Communication Leadership Python SQL NoSQL PostgreSQL CI/CD Docker Problem-solving Architecture Agile

Job Specifications

Job Description

Senior Software Engineer

Remote

Up to £80,000 + Benefits

The Role

Reporting to the Engineering Lead, you will drive the design of our core lending platform. We are looking for an engineer who understands modern, high-performance Python—not just scripting. You will architect event-driven systems, handle asynchronous workflows, and mentor the team on scalability best practices.

Tech Stack

Core: Modern Python (3.10+), AsyncIO, REST APIs.

Data: SQL (PostgreSQL), NoSQL, Event-Driven Architecture.

Ops: Containerisation (Docker), CI/CD, Cloud Native.

Core Responsibilities

Architecture & Scale: Design scalable, asynchronous backend systems. You will make high-level decisions on concurrency, latency, and caching.

Technical Leadership: Lead the team on performance tuning and reliability patterns (retries, idempotency).

Code Quality: Enforce a high standard of testing (Unit, Integration, Contract) and modern dependency management.

Mentorship: Mentor junior engineers through pairing and code reviews to drive technical growth within the team.

Requirements

Deep Python Expertise: You know the internals of the language, specifically memory management, packaging, and performance tuning.

Distributed Systems: Proven experience designing systems that handle high load and asynchronous processing.

Methodology: Extensive experience in Agile environments (SAFe experience is a strong plus).

Communication: Our ethos is one of continuous improvement, driven by a highly collaborative environment. While there is plenty of deep work involved, this isn't a solitary role—we prioritize pairing, design discussions, and shared problem-solving over working in isolation.

*Please note, although this is a remote role, we still require all candidates to be UK-based, as the role will require occasional travel to our office in Cardiff. We are unable to offer VISA sponsorship for this role, all applicants must have full UK right to work.*

About the Company

We help businesses hire better candidates, faster. We specialise in Technology and Finance recruitment, providing permanent and interim talent solutions to organisations across the UK and internationally. We also partner with Venture Capital & Private Equity funds, helping them secure key hires for their investment portfolios. Know more