About the position
At Bits, 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 and soon in the USA. 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 our Product Lead, Designer, and CEO. This is a hands-on role where you'll be writing code and getting things done because that's how we roll. Please note that this role requires working from the office some days a week, and unfortunately, we are unable to provide visa sponsorship.
Responsibilities
- Write maintainable, testable, and robust code.
- Design and implement clean APIs using REST or GraphQL.
- Integrate user-facing elements with server-side logic.
- Develop highly scalable, fault-tolerant, distributed systems using AWS services.
- Monitor the health of services and proactively identify and resolve issues.
- Translate product requirements into scalable and reliable solutions.
- Integrate third-party APIs effectively.
- Create automated tests.
- Take full ownership of deliverables and work proactively.
Requirements
- At least 5 years of programming experience with Node.js and TypeScript, including object-oriented design principles.
- Experience in designing and implementing clean APIs using REST or GraphQL.
- Understanding of integrating user-facing elements with server-side logic.
- Experience in developing highly scalable, fault-tolerant, distributed systems using AWS services such as API Gateway, Lambda, DynamoDB, SQS, SNS, and EventBridge.
- Knowledge of AI and machine learning fundamentals, including decision trees, logistic regression, and neural networks.
- Prior experience integrating OpenAI or constructing Agentic AI systems.
- Core software engineering competencies, including the ability to write maintainable, testable, and robust code.
- Ability to monitor the health of services and proactively identify and resolve issues.
- Experience in creating automated tests.
- Excellent written and verbal communication skills in English.
Nice-to-haves
- 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.
- Experience in integrations with payment services such as Stripe, Plaid, PayPal, etc.
- Experience in building SaaS products.
- Experience with Infrastructure as Code (IAC) using AWS CDK.
Benefits
- Competitive market salary
- Health insurance
- Choose your hardware
- Flexible work environment
