Trading Senior Software Engineer

Role Overview

The role supports the ongoing development, operation, and continuous improvement of the internal pricing framework “Kallisto”, a strategic system used for structured, traceable, and scalable price determination within energy marketing.

Kallisto orchestrates complex data flows, integrates multiple external systems and market data sources, and executes pricing and calculation models for a wide range of energy products. A key objective of the engagement is the transition from partially manual pricing calculations to fully automated, system‑driven processes.

Due to the complexity of pricing logic, market integrations, and workflow orchestration, the role requires a professional with strong energy domain understanding combined with deep hands‑on technical expertise in modern backend and frontend technologies.

s1. Backend Development (Core Focus

• )Design, develop, and enhance backend services in Python (e.g., FastAPI, Django, Flask) implementing the business logic of the pricing framework
• .Build and maintain pricing calculation workflows, data orchestration logic, and process automation pipelines
• .Integrate external systems, market data providers, and internal platforms via REST‑based APIs, including authentication, parameter handling, and response processing
• .Contribute to technical design and architecture, including definition of modules, interfaces, and scalable system structures
• .Ensure robustness, transparency, and traceability of pricing calculations in line with business and audit requirements

.
2. Frontend Developme

• ntDevelop and extend frontend components using modern web technologies such as Angular, React, or equivalent framework
• s.Implement intuitive user interfaces for structured data input, monitoring, visualization, and evaluation of pricing result
• s.Integrate frontend applications seamlessly with backend services through well‑defined API
• s.Contribute to the continuous evolution of UI architecture, frontend components, and application structur

e.
3. Cross‑Functional & DevOps Activit

• iesImplement and enhance monitoring and observability solutions (e.g., Datadog) to ensure system reliability and operational transparen
• cy.Ensure high software quality through clean code practices, peer reviews, and automated testing (unit, integration, end‑to‑en
• d).Actively use version control systems (Git) and contribute to structured CI/CD pipelin
• es.Apply DevOps practices, including containerization (Docker), cloud deployment, and infrastructure‑as‑code approach

es.
4. Agile Delivery & Collabora

• tionWork within an agile delivery model, supporting the Product Owner in implementing and refining prioritized backlog it
• ems.Collaborate closely with the Product Owner and Tech Lead to translate complex pricing and domain requirements into robust technical soluti
• ons.Actively contribute to the continuous technical and functional evolution of the Kallisto platf

orm.
Required Skills & Exper

ienceDomain Expertise (Manda

• tory)Strong understanding of energy markets and energy pricing concepts, including market data, pricing models, and product struct
• ures.Experience working with pricing frameworks, calculation engines, or data‑driven decision systems in an energy or commodities con
• text.Ability to translate complex business and pricing requirements into system‑based, automated solut

ions.Technical Expertise (Manda

• tory)Strong hands‑on experience in Python backend development (FastAPI, Django, Flask or simi
• lar).Solid experience with RESTful API design and system integrat
• ions.Proficiency in modern frontend frameworks (Angular, React, or equival
• ent).Experience with cloud environments, containerization (Docker), and CI/CD pipel
• ines.Strong understanding of software architecture, modular design, and scalable sys

tems.Quality & Engineering Prac

• ticesExperience with automated testing strategies and clean code princi
• ples.Familiarity with monitoring, logging, and observability t
• ools.Comfortable working in agile, cross‑functional t

eams.
Key Success F

• actorsAbility to combine deep domain understanding with strong technical exec
• ution.Structured, analytical thinking with attention to pricing accuracy, traceability, and scalab
• ility.Proactive contribution to architectural discussions and continuous improv
• ement.Strong collaboration skills in multi‑stakeholder, agile environ

ments.