Senior TypeScript Engineer (Node.js, AWS Serverless), FinTech

Codurance; Greater London; Híbrido; GBP 94.000 - 127.000; Jornada completa

Ventajas ofrecidas por este puesto de trabajo

Flexible hybrid work

Descripción de la vacante

Codurance is seeking a Senior TypeScript Engineer on a six-month contract to work on a financial platform. You’ll design, build, and run TS/Node.js services on AWS serverless infrastructure, embedded in a cross-functional team with product, operations, and customer-facing colleagues.

You’ll own the production lifecycle from code to running service, mentor other engineers, and help improve observability and tests. Flexible hybrid work across major UK cities including London and Manchester.

Formación

• Senior contract engineer with strong TypeScript and Node.js experience.
• Experience designing and delivering services in AWS serverless environments.
• Exposure to regulated industries, ideally financial services or FinTech.

Responsabilidades

• Design, build, and run TypeScript and Node.js services on AWS serverless infrastructure.
• Own SLAs and continuously improve system reliability.
• Document services and mentor other engineers.
• Explain system architecture to non-technical colleagues.
• Collaborate openly with product and operations to align delivery.
• Lead technical delivery within a build-and-run model.
• Advise on incident management and observability practices.

Conocimientos

Node.js

TypeScript

Leadership

Mentoring engineers

Incident management

Regulated industry experience

Communication

Herramientas

AWS Lambda

AWS SQS

AWS EventBridge

AWS API Gateway

AWS S3

AWS ECS

MongoDB

Serverless

Architecture

Descripción del empleo

Senior TypeScript Engineer (Node.js, AWS Serverless), FinTech

Location: London, Manchester, Leeds, Edinburgh or Bristol (flexible hybrid)

Rate: £600

Duration: 6 months

About Codurance

We're a software craftsmanship consultancy. We build software for clients, and we care about doing it properly: clean code, solid testing, sensible architecture, and teams that keep learning. Our engineers work embedded with client teams, so you get variety, real ownership, and the backing of a wider community of craftspeople who'll challenge you and help you grow.

The role

We're looking for a senior contract engineer to work on a financial platform where correctness actually matters. You'll design, build, and run TypeScript and Node.js services on AWS serverless infrastructure. You'll work in a small, cross-functional team alongside product, operations, and customer-facing colleagues, and you'll be the person people go to when they're stuck. This is a build-and-run environment: if you build it, you own it in production.

What you'll do day to day

• Design, build, and operate services within your domain, from architecture through to delivery
• Take accountability for the SLAs of what you ship, and keep improving it
• Write and maintain useful documentation for your services
• Mentor and guide other engineers
• Explain how the system works to non-technical colleagues, without making them feel daft for asking
• Judge when "good enough for now" is the right call, and when it isn't
• Work openly with product and operations, and challenge ideas constructively

Core skills:

• Strong commercial experience with Node.js and TypeScript
• Hands-on AWS experience, including serverless (Lambda, SQS, EventBridge, API Gateway, S3, ECS)
• Strong experience with event-driven architecture
• Experience with document databases, ideally MongoDB
• A track record of leading technical delivery in a build-and-run model
• Experience mentoring other engineers
• Experience with incident management
• Experience in a regulated industry, ideally financial services or FinTech

Also important:

• Solid experience designing, building, and running high-quality workflow APIs, with a focus on testing, observability, and performance
• Comfort working with distributed systems and debugging through tracing and observability tooling
• Experience in a strongly, statically typed language
• The ability to turn business and customer problems into efficient, scalable solutions
• Curiosity about how investment and custody products work

Nice to have:

• Experience with multi-region, multi-currency or trading-related systems
• Terraform, Serverless Framework and GitHub Actions
• Some exposure to C#

How we work

We care about engineering quality, pragmatic architecture, and continuous improvement. You'll have autonomy, and with it, full accountability. We'd rather you tell us something is wrong than nod along.

Everyone should have the right to bring their whole self to work and be celebrated for who they are. Our people are hired purely on their commitment to these values and their ambition to deliver outstanding results for our clients. Codurance is proud to be an Equal Opportunities Employer and is committed to fostering an inclusive workplace.