Senior Software Engineer (Python / React)

Technologies we use

About the project

This is how we organize our work

This is how we work

Team members

Your responsibilities

• Developing and maintaining backend services, frontend applications, and data pipelines.
• Building backend solutions in Python using FastAPI, Pydantic, and SQLAlchemy.
• Analysing and optimising Microsoft SQL Server databases, including queries, indexes, and execution plans.
• Supporting frontend applications developed with React and JavaScript.
• Developing and maintaining processes responsible for supplying the platform with market data.
• Supporting quantitative models used for valuation, risk management, and market analysis.
• Reviewing solutions delivered by the Central IT team and identifying technical, performance, and architectural issues.
• Providing professional and constructive technical feedback.
• Acting as a technical link between the local office in Switzerland and the Central IT team in Greece.
• Translating the needs of traders and analysts into practical technical solutions.
• Supporting Docker-based deployments and multi-service environments.
• Combining locally developed business tools with corporate solutions, standards, and platforms.

Our requirements

• Experience in developing and maintaining production software systems.
• Very good knowledge of modern, typed Python.
• Experience with FastAPI, Pydantic, SQLAlchemy, or similar technologies.
• Very good knowledge of Microsoft SQL Server and T-SQL, particularly in the following areas: query optimisation, indexing, execution plan analysis, database schema design, working with large datasets.
• Experience with Docker and multi-service environments.
• Practical knowledge of React and JavaScript. The role may be more backend-focused, but it requires the ability to work across the full technology stack.
• Ability to analyse existing solutions and assess their quality, performance, and architecture.
• Strong analytical skills and the ability to understand complex business processes and data flows.
• Excellent communication skills.
• Ability to professionally challenge technical decisions and propose better solutions.
• Independence, ownership, and willingness to lead solutions from analysis through implementation and deployment.
• Very good English.

Optional

• Experience in energy, commodity trading, or financial markets.
• Knowledge of areas such as power, gas, emissions, forward curves, positions, P&L, valuation, or risk.
• Experience with pandas, NumPy, PyArrow, Dagster, or Jupyter.
• Knowledge of Rust, C++, C#, or F# in performance-sensitive solutions.
• Experience working at the intersection of local business needs and centralised corporate IT structures.

What we offer

• We are open and honest and we solve problems instead of generating them.
• Maybe it’s obvious, but we really respect our employees and associates. We used to be software developers, too, and we appreciate that job!
• A small team.
• An international working environment and international projects.
• Private medical care.
• Sports card.
• Training courses.
• Work on-site in Switzerland.

This is how we work on a project

Development opportunities we offer

Benefits

Why it’s a good idea to work with People More?

• If you are not satisfied with your work or your tasks, we’ll find a way out together!
• If you get bored, we will offer you a new product and new, fascinating tasks
• We will work on your brand together: you will get an opportunity to attend conferences, including as a speaker, and we will help you publish in recognized magazines and online
• We will facilitate your access to challenges that are usually difficult to get
• At any time, you can talk directly to the board of People More—we talk your language because the company’s founders are software developers and designers!