Senior Software Engineer - Backend

At Bits (www.getbits.app), we're not just another fintech company – we're on a mission to revolutionise credit building, making it accessible to everyone, even those who have been left out by traditional credit systems. We're not just creating another financial company; we're rewriting the rules and changing lives by providing credit and solutions to millions of people in the UK.

About the Role: Engineering Lead

As a Senior Software Engineer at Bits, you're not just joining a company; you're joining a movement. You'll be a crucial member of our engineering team, working directly with the our Product Lead, Designer and CEO from our Camden offices. And guess what? This is a hands-on role. You'll be writing code and getting things done because that's how we roll.

Requirements

Requirements - You will be an ideal candidate if you:

• Have at least 5 years of programming experience with Node.js and TypeScript, including object-oriented design principles.
• Possess experience in designing and implementing clean APIs using REST or GraphQL.
• Understand the integration of user-facing elements created by application developers with server-side logic.
• Have experience in developing highly scalable, fault-tolerant, distributed systems utilising AWS services such as API Gateway, Lambda, DynamoDB, SQS, SNS, and EventBridge.
• Are knowledgeable about AI and machine learning fundamentals, including decision trees, logistic regression, and neural networks.
• Have prior experience integrating OpenAI or constructing Agentic AI systems, and are open to utilising AI tools like Cursor.
• Demonstrate core software engineering competencies, including the ability to write maintainable, testable, and robust code.
• Can translate product requirements into scalable and reliable solutions.
• Possess the ability to monitor the health of our services and proactively identify and resolve issues.
• Know how to integrate third-party APIs effectively.
• Have experience in creating automated tests.
• Are proactive in your work, taking on a builder role rather than a maintainer, and take full ownership of your deliverables.
• Exhibit excellent written and verbal communication skills in English.

Desired Extras:

• Experience with low-latency, high-availability, and efficient GraphQL APIs.
• Experience with event-driven architectures.
• Familiarity with system and application monitoring, software distribution, patching, and maintaining CI/CD pipelines.
• Experience with relational databases.
• Experience with Python.
• Have worked on integrations with payment services such as Stripe, Plaid, PayPal, etc.
• Have experience in building SaaS products.
• Have worked with Infrastructure as Code (IAC) using AWS CDK.

Benefits

What's in it for You:

1. Impactful Work: You'll play a key role in scaling our platform to support the next million Bits users, contributing to a product that's changing lives.
2. Dynamic Environment: Forget the mundane. You'll be in a role where your priorities shape your path, and every day brings a new challenge.

Perks that Make You Smile:

• Competitive market salary,  and health insurance.
• Choose your hardware.
  

And if there's something else you desire within reason, we're all ears. We want you to be happy, fulfilled, and proud to be part of the Bits family.

The Interview Process 

• A quick introductory call
• A short take home technical challenge
• A final round to discuss your code, introduce you to our CEO and founder, plus other members of the team and business, and answer any questions you might have