Senior Backend Engineer – Asset Backed Trading

United States Digital Space LLC; Manchester; On-site; GBP 90,000 - 120,000; Full time

Job summary

United States Digital Space LLC is seeking a Senior Software Engineer to join Humboldt and help grow Asset Backed Trading across new markets and capabilities. You will work in a Python monorepo of serverless services, ingest market data, build optimization problems, call solvers, and dispatch trading positions back to assets.

You’ll collaborate with data scientists and traders to turn prototypes into reliable, well-tested services, evolve interfaces with Flex services, and shape the architecture

Qualifications

• Proficient in Python with strong typing and testing discipline.

Responsibilities

• Design, build and operate the Python backend services behind Asset Backed Trading.
• Own event driven flows from trigger to dispatch: queues, lambdas, events, and the Flex API integrations around them.
• Productionise new algorithms and market capabilities in collaboration with data scientists.
• Help with team discovery for new epics spanning software architecture and energy systems modelling.
• Improve reliability, latency, and operability via testing, monitoring, alarms, and refactoring.
• Contribute to infrastructure as code (CDK / CloudFormation) and deployment pipelines.
• Take part in architectural decisions as we expand Asset Backed Trading across EU markets.
• Support teammates through pairing, reviews, and shared problem solving.
• Help maintain a high bar for typed, well tested Python to avoid silent domain mistakes.

Skills

Python

Backend services

AWS (Lambda, API Gateway, SQS, EventBr

API design

Typed, well-tested code

Observability

Team collaboration

Ambiguity judgement

Tools

AWS Lambda

API Gateway

SQS

EventBridge

DynamoDB

S3

Job description

United States Digital Space LLC is seeking a Senior Software Engineer to join Humboldt and help grow Asset Backed Trading across new markets and capabilities. You will work in a Python monorepo of serverless services, ingest market data, build optimization problems, call solvers, and dispatch trading positions back to assets.

You’ll collaborate with data scientists and traders to turn prototypes into reliable, well-tested services, evolve interfaces with Flex services, and shape the architecture