Senior Node.js Engineer (TypeScript) — FinTech Impact

iO Associates; Greater London; On-site; GBP 70,000 - 110,000; Full time

Job summary

iO Associates seeks a Senior Software Engineer in London to design, build and operate scalable software using TypeScript and Node.js. You will work with AWS and Serverless products, mentor engineers, and lead delivery in a regulated FinTech environment.

The role involves collaborating with clients and senior stakeholders to ensure robust, maintainable solutions and incident readiness in a build-and-run model.

Qualifications

• Senior software engineer with strong Node.js and TypeScript experience.
• Experience with AWS and serverless architectures in production.
• Experience mentoring engineers and delivering technical work in regulated FinTech environments.
• Proven ability to lead delivery in build-and-run models and manage on-call incidents.

Responsibilities

• Design, build and operate reliable, scalable software solutions.
• Develop new functionalities and products using TypeScript and Node.js.
• Collaborate with clients and senior stakeholders to align technical delivery with business goals.
• Contribute to maintenance, monitoring and incident management in production.

Skills

Node.js

TypeScript

Mentoring engineers

Technical delivery leadership

On-call & incident management

Regulated FinTech experience

Tools

AWS

Serverless architectures

MongoDB

Job description

iO Associates seeks a Senior Software Engineer in London to design, build and operate scalable software using TypeScript and Node.js. You will work with AWS and Serverless products, mentor engineers, and lead delivery in a regulated FinTech environment.

The role involves collaborating with clients and senior stakeholders to ensure robust, maintainable solutions and incident readiness in a build-and-run model.