Senior Software Engineer, SaaS Platform & AI-Driven

Join It; Greater London; On-site; GBP 70,000 - 90,000; Full time

Benefits offered by this job

Competitive pay

Professional growth opportunities

Collaborative team environment

High ownership and influence on product direction

Job summary

A fast-growing software company in London is seeking a Senior Software Developer to enhance their B2B SaaS platform. This role involves owning problems end-to-end, designing and shipping features, and maintaining high code quality. The ideal candidate has over 7 years of software development experience, excels in building production SaaS applications, and is skilled in backend languages and API design. This opportunity offers competitive pay and a chance to influence product development in a collaborative environment.

Qualifications

• 7+ years professional software development experience.
• Strong experience building and maintaining production B2B SaaS applications.
• Deep proficiency in at least one modern backend language or framework.
• Strong understanding of relational databases, data modelling, and migrations.
• Experience designing and consuming APIs.
• Comfortable working across the stack (frontend, backend, integrations).
• Experience working in lean teams with high ownership and autonomy.
• Strong communication skills and a product-oriented mindset.

Responsibilities

• Design, build, and ship high-quality product features.
• Take ownership of key parts of the codebase.
• Write clean, well-tested, and maintainable code.
• Improve application performance and reliability.
• Investigate and resolve complex bugs and production issues.
• Support and mentor other engineers through code reviews.

Skills

Software development

B2B SaaS applications

API design

Application security

Data modeling

Mentorship

Job description

A fast-growing software company in London is seeking a Senior Software Developer to enhance their B2B SaaS platform. This role involves owning problems end-to-end, designing and shipping features, and maintaining high code quality. The ideal candidate has over 7 years of software development experience, excels in building production SaaS applications, and is skilled in backend languages and API design. This opportunity offers competitive pay and a chance to influence product development in a collaborative environment.