Senior Python Developer

TreasurySpring

Greater London

Hybrid

GBP 70,000 - 90,000

Full time

14 days+

Get more replies from employers

Send a job-specific resume in minutes.

Benefits offered by this job

Competitive salary
Equity and bonus scheme
Unlimited Paid Leave
Hybrid office-working model
Enhanced Parental Leave
Workplace Pension
Complete HealthCare Cover
Life Insurance
Remote Office set-up budget
Cycle to Work Scheme
Team-building activities

Job summary

A growing fintech company in Greater London seeks a Senior Python Developer to join its technology team. This role requires over 5 years of experience in developing complex applications, ideally using Python. You'll play a critical role in designing mission-critical systems and mentoring junior developers. The company offers competitive salaries, equity schemes, unlimited paid leave, and a hybrid working environment, making it an attractive opportunity for technology enthusiasts focused on innovative financial solutions.

Qualifications

  • 5+ years experience developing applications in an OO language, ideally Python.
  • Experience with testing automation and CI/CD is preferred.
  • Strong aptitude for learning and adapting.

Responsibilities

  • Designing and developing systems for trading and investment operations.
  • Mentoring less-experienced developers.
  • Optimising Python applications for performance.

Skills

Developing complex applications using Python
Experience with CI/CD
Excellent communication
Problem-solving skills

Education

Strong STEM degree

Tools

Python 3
Postgres
TypeScript
React

Job description

This job is brought to you by Jobs/Redefined, the UK's leading over-50s age inclusive jobs board.

TreasurySpring is the product of an obsession with fixing the fundamental structural problems in money markets. Our fascination with the sector began painfully, during the Global Financial Crisis of 2008, where we had a front-row seat to watch the evaporation of liquidity in fixed income and the near collapse of the entire short-dated funding markets.

We have been on a mission to help deliver more sustainable solutions for the money markets ever since, and we launched TreasurySpring in 2018 to offer institutional clients a single gateway to the broadest range of the best risk‑adjusted cash investment options. As a fast‑growing London‑based financial technology company, we deliver a unique solution to a global multi‑trillion‑dollar problem, delivered globally from our offices in London and New York.

Our regulated Fixed‑Term Fund platform delivers new digital pipelines to connect cash‑rich firms to institutional borrowers. Clients include large Private Equity funds, Asset Managers, listed Corporates, high‑growth tech companies and many more.

Learn more about why we do what we do here.

Senior Python Developer

Join our lean UK‑based technology team as a Senior Python Developer, where you'll play a pivotal role in the development of our systems. Working closely with the CTO and Head of Software Engineering, you'll have the opportunity to make a significant impact within our growing fintech business. This role offers the flexibility of remote work alongside visits to our offices in Mayfair, London.

Our proprietary technology platform handles billions of dollars worth of our customers' investments every day, capturing all client orders and managing the entire investment cycle. Our backend services are built in typed Python3, backed by a Postgres database. This includes a proprietary workflow engine built around a Scheme‑based workflow notation.

Our frontend systems include our clean, simple web portal for client order capture and reporting, built in TypeScript and React; with server‑side REST and GraphQL APIs written in Python3.

What we’re looking for…
Essential skills and experience:
  • 5+ years experience of developing complex applications using an OO language (ideally Python, but experience in C++ / C# / Java / etc would also be considered)
  • Experience working on mission‑critical applications, following a robust SDLC
  • Excellent communication and problem‑solving skills; and a strong aptitude for learning
  • Experience and enthusiasm for test‑automation and CI/CD
  • Strong STEM degree or equivalent professional experience
Desirable skills:
  • Deep knowledge of Python, including any of the frameworks we currently use: Flask, SqlAlchemy, Alembic, Pydantic
  • Experience with relational databases, ideally Postgres
  • Experience of message‑based architectures, and queuing technologies, i.e. RabbitMQ
  • Experience of REST and/or GraphQL APIs
  • Knowledge of the core AWS services: i.e. EC2 / ECS, RDS, S3
  • Experience using DataDog or similar observability tools
  • Knowledge of containerisation: Docker, Kubernetes, AWS Fargate etc
  • Any experience of front‑end or fullstack development using TypeScript & React
  • Experience building software for financial services and/or investment management organisations

We don't expect candidates to have knowledge of all of the above, but we hope you're keen to learn!

What you’ll do: Responsibilities
  • Designing and developing mission‑critical systems and applications that support our trading and investment operations, and our client‑facing products.
  • Analysing requirements, proposing solutions, and designing software components and systems.
  • Writing high‑quality, efficient, and maintainable code.
  • Participating in code reviews, providing feedback to other team members and ensuring that coding standards and best practices are followed throughout the development process.
  • Mentoring and coaching less‑experienced developers, helping them improve their skills, learn best practices, and grow professionally.
  • Communicating effectively with stakeholders to understand requirements and provide updates on project progress.
  • Optimising the performance of Python applications, identifying bottlenecks and inefficiencies and implementing solutions to improve scalability, responsiveness, and efficiency.
  • Staying updated on the latest trends, technologies, and best practices in Python development and software engineering.
What we offer: Benefits
  • Competitive salary, depending on experience
  • Equity and bonus scheme
  • Unlimited Paid Leave
  • Hybrid office‑working model – we're in a great location near Green Park station in London
  • Enhanced Parental Leave and Pay
  • Workplace Pension
  • Complete Bupa HealthCare Cover
  • Life Insurance
  • Income Protection Insurance
  • Access to Yulife (Employee Assistance Programme)
  • Remote Office set‑up budget
  • Cycle to Work Scheme
  • A fun and dynamic working environment with regular team‑building activities and events
Get your free, confidential resume review.
or drag and drop your file here.
Similar jobs

Similar jobs worth comparing

Senior Python Developer
Senior Python Developer

Fundment Limited • Greater London

Hybrid
GBP 90,000 - 120,000
Pension 6% employer contribution
BUPA Private Health Insurance
Medicash Cashplan
+4
Senior Python Developer- London- Up to
Senior Python Developer- London- Up to

Akkodis • Greater London

Hybrid
GBP 60,000 - 100,000
Benefits
Python Engineer
Python Engineer

LinkedTrade • Greater London

Hybrid
GBP 65,000 - 90,000
Competitive salary
Hybrid work arrangement
Collaborative environment
Senior Software Engineer (Python)
Senior Software Engineer (Python)

Harnham • England

Hybrid
GBP 68,000 - 80,000
25 days holiday plus option to buy 5 more
Private medical cash plan
Annual performance-based bonus (up to 7%)
+2
Python Developer - Up to £155k + Bonus + Benefits - London
Python Developer - Up to £155k + Bonus + Benefits - London

Hunter Bond • Greater London

On-site
GBP 50,000 - 80,000
Innovation Fridays
Annual personal tech budget
Fully funded trips to conferences
+3
Senior Python Developer - Up to £180,000 P/A + Bonus - London
Senior Python Developer - Up to £180,000 P/A + Bonus - London

Hunter Bond • Greater London

Hybrid
GBP 108,000 - 180,000
Senior Software Engineer
Senior Software Engineer

DW Search • Greater London

Hybrid
GBP 80,000 - 120,000
Python Software Engineer
Python Software Engineer

Fundment Limited • Greater London

Hybrid
GBP 70,000 - 110,000
Pension 6% employer contribution
BUPA Private Health Insurance – fully
Life Assurance – 4 x base salary
+2
Python Developer - £150,000 + Comps - London
Python Developer - £150,000 + Comps - London

Hunter Bond • Greater London

On-site
GBP 135,000 - 165,000
Bonus
Comprehensive benefits
Senior Python Developer
Senior Python Developer

Tech4 • London

Hybrid
GBP 64,000 - 70,000
Excellent benefits
Positive work culture