Senior Software Engineer, Bonsai in London
Senior Software Engineer, Bonsai

Senior Software Engineer, Bonsai in London

London Full-Time 28800 - 48000 £ / year (est.) Home office (partial)
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At a Glance

  • Tasks: Build backend systems and APIs that power essential business tools.
  • Company: Join Bonsai, now part of Zoom, a leader in innovative tech solutions.
  • Benefits: Enjoy a competitive salary, health perks, remote work options, and growth opportunities.
  • Why this job: Make a real impact on products used by teams worldwide while working with cutting-edge technology.
  • Qualifications: Proficiency in Ruby, Ruby on Rails, and experience with RESTful APIs.
  • Other info: Collaborative environment with a focus on personal and professional development.

The predicted salary is between 28800 - 48000 £ per year.

Bonsai, now part of Zoom, builds tools that help agencies and professional teams focus on meaningful work. We are looking for a Senior Software Engineer to build backend systems and APIs that power proposals, contracts, invoices, payments, time tracking, and projects. Make complex workflows seamless, reliable, and performant.

Work with Product, Design, and Frontend teams to shape architecture and implementation. Own your code, your services, and your impact. Influence a product used by teams around the world. Join a team that combines startup energy with Zoom’s scale. Your work will help small businesses focus on what matters — not busywork.

At Bonsai, we build technology that helps agencies, consultancies, and professional services teams do their best work without getting buried in busywork. Now part of Zoom, we combine deep operational expertise with Zoom’s mission to create meaningful, flexible human connection. From small studios to growing global teams, we design tools that remove friction across proposals, contracts, projects, time tracking, and billing. Together with Zoom, we build smarter systems, collaborate more freely, and help shape the future of work.

Responsibilities:

  • Leading development of resilient backend systems powering proposals, project management, CRM, invoicing, payments, contracts, and time tracking.
  • Designing and implementing RESTful APIs and microservices that scale with usage and integrate with internal and external systems.
  • Collaborating with Frontend, Product, and Design to deliver reliable, performant full-stack experiences.
  • Driving performance optimization, security hardening, and operations best practices across backend services.
  • Contributing to architectural discussions, system design reviews, and long-term product strategy.
  • Implementing automated test coverage, CI/CD pipelines, observability, and production monitoring.
  • Supporting multi-region, multi-currency, and internationalization requirements as Bonsai expands globally.

What we’re looking for:

  • Apply deep proficiency in Ruby, Ruby on Rails, React and Typescript.
  • Design and implement REST APIs and database schemas, ideally using PostgreSQL or similar relational stores.
  • Collaborate effectively with Frontend and Product teams to deliver end-to-end solutions.
  • Ensure system performance, reliability, security, and observability best practices are met.
  • Develop SaaS products; experience with payments, invoicing, or workflow systems is highly advantageous.
  • Operate independently in teams with high autonomy and ownership expectations.
  • Contribute to technical leadership and mentorship across the engineering organization.

Ways of Working:

Our structured hybrid approach is centered around our offices and remote work environments. The work style of each role, Hybrid, Remote, or In-Person is indicated in the job description/posting.

Benefits:

As part of our award-winning workplace culture and commitment to delivering happiness, our benefits program offers a variety of perks, benefits, and options to help employees maintain their physical, mental, emotional, and financial health; support work-life balance; and contribute to their community in meaningful ways.

About Us:

Zoomies help people stay connected so they can get more done together. We set out to build the best collaboration platform for the enterprise, and today help people communicate better with products like Zoom Contact Center, Zoom Phone, Zoom Events, Zoom Apps, Zoom Rooms, and Zoom Webinars. We’re problem-solvers, working at a fast pace to design solutions with our customers and users in mind. Find room to grow with opportunities to stretch your skills and advance your career in a collaborative, growth-focused environment.

Our Commitment:

At Zoom, we believe great work happens when people feel supported and empowered. We’re committed to fair hiring practices that ensure every candidate is evaluated based on skills, experience, and potential. If you require an accommodation during the hiring process, let us know—we’re here to support you at every step.

Senior Software Engineer, Bonsai in London employer: Pantera Capital

At Bonsai, now part of Zoom, we foster a dynamic work culture that blends startup energy with the stability of a large organisation, making it an exceptional place for a Senior Software Engineer. Our commitment to employee well-being is reflected in our comprehensive benefits programme, which supports physical, mental, and financial health, while offering ample opportunities for professional growth and collaboration across teams. Join us to make a meaningful impact on tools that empower agencies and professional teams worldwide, all within a supportive and innovative environment.
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Contact Detail:

Pantera Capital Recruiting Team

StudySmarter Expert Advice 🤫

We think this is how you could land Senior Software Engineer, Bonsai in London

✨Tip Number 1

Network like a pro! Reach out to current or former employees at Bonsai on LinkedIn. A friendly chat can give you insider info and maybe even a referral, which can really boost your chances.

✨Tip Number 2

Prepare for the technical interview by brushing up on Ruby, Rails, and API design. We recommend building a small project that showcases your skills. It’s a great way to demonstrate your expertise and passion during the interview.

✨Tip Number 3

Showcase your problem-solving skills! During interviews, be ready to discuss how you've tackled challenges in past projects. We love hearing about your thought process and how you approach complex workflows.

✨Tip Number 4

Don’t forget to apply through our website! It’s the best way to ensure your application gets seen. Plus, it shows you’re genuinely interested in joining the Bonsai team.

We think you need these skills to ace Senior Software Engineer, Bonsai in London

Ruby
Ruby on Rails
React
Typescript
RESTful APIs
Microservices
PostgreSQL
Performance Optimization
Security Hardening
CI/CD Pipelines
Observability
Technical Leadership
Mentorship
SaaS Product Development

Some tips for your application 🫡

Show Off Your Skills: When you're writing your application, make sure to highlight your deep proficiency in Ruby, Ruby on Rails, and any experience with REST APIs. We want to see how your skills align with what we're looking for, so don’t hold back!

Tailor Your Application: Take a moment to customise your application for the Senior Software Engineer role at Bonsai. Mention specific projects or experiences that relate to backend systems, APIs, or SaaS products. This shows us you’re genuinely interested in the position.

Be Clear and Concise: Keep your application clear and to the point. We appreciate well-structured applications that are easy to read. Use bullet points if necessary to break down your experiences and achievements—this helps us get a quick overview of your background.

Apply Through Our Website: We encourage you to apply directly through our website. It’s the best way to ensure your application gets into the right hands. Plus, it gives you a chance to explore more about us and what we do at Bonsai!

How to prepare for a job interview at Pantera Capital

✨Know Your Tech Stack

Make sure you brush up on Ruby, Ruby on Rails, React, and Typescript. Be ready to discuss your experience with these technologies and how you've used them in past projects. Highlight any specific examples where you designed REST APIs or worked with PostgreSQL.

✨Showcase Your Problem-Solving Skills

Prepare to talk about complex workflows you've tackled in previous roles. Think of specific challenges you faced and how you optimised performance or improved reliability in backend systems. This will demonstrate your ability to handle the responsibilities outlined in the job description.

✨Collaboration is Key

Since you'll be working closely with Product, Design, and Frontend teams, come prepared with examples of successful collaborations. Discuss how you’ve contributed to architectural discussions and system design reviews, and how you ensure smooth communication across teams.

✨Emphasise Ownership and Autonomy

Bonsai values independence and ownership, so be ready to share instances where you took charge of a project or led a team. Talk about how you manage your time and priorities, especially in a hybrid work environment, to show that you can thrive with high autonomy.

Senior Software Engineer, Bonsai in London
Pantera Capital
Location: London

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