Senior Software Engineer (Hybrid in London)

Signify Technology; Greater London; Hybrid; GBP 60,000 - 90,000; Full time

Benefits offered by this job

Bonus

Benefits

Job summary

Signify Technology is seeking a Senior Software Engineer to join a fintech company in London. This role involves designing scalable backend applications and collaborating closely with teams to enhance business-critical platforms.

Ideal candidates will have over 5 years of experience, strong skills in Python, SQL, and Linux systems, with a focus on software engineering best practices. The position offers a competitive salary, bonus, and hybrid work arrangements.

Qualifications

• Strong commercial experience with Python.
• 5+ years as a software engineer.
• Advanced SQL skills and experience working with large datasets.
• Solid Linux systems knowledge.
• Experience in fintech or financial services.

Responsibilities

• Designing and developing scalable backend applications using Python.
• Building and optimising complex SQL queries.
• Collaborating with product, engineering, and infrastructure teams.

Skills

Python

SQL

Linux

Software engineering best practices

Problem-solving

Communication

Job description

Senior Software Engineer

Location: London (Hybrid)

Salary: Competitive + Bonus + Benefits

I’m currently working with an exciting and rapidly growing fintech business looking to hire a Senior Software Engineer to join their high‑performing engineering team. This is an opportunity to work on business‑critical platforms that process large volumes of financial data and transactions, helping to build scalable, secure, and highly available systems used by customers across the UK and Europe.

What You’ll Be Doing

• Designing and developing scalable backend applications using Python
• Building and optimising complex SQL queries and database solutions
• Working within Linux‑based production environments
• Developing and maintaining APIs and distributed systems
• Collaborating with product, engineering, and infrastructure teams
• Driving technical improvements and contributing to architectural decisions
• Mentoring engineers and promoting best engineering practices

What we’re looking for

• Strong commercial experience with Python
• 5+ years as a software engineer
• Advanced SQL skills and experience working with large datasets
• Solid Linux systems knowledge
• Previous experience within fintech, banking, payments, trading, lending, or financial services
• Experience building scalable production systems
• Strong understanding of software engineering best practices
• Excellent problem‑solving and communication skills