Full Stack/Back-End/Front-End Software Engineer (Java/Kotlin or JavaScript) (f/m/d)

Area of Work:
Join our technology team and help shape one of the most impactful systems in the European energy market — the M7 XBID trading platform, enabling pan‑European cross‑zonal intraday power trading.
Depending on your strengths, this position can be tailored as a back‑end, front‑end, or full‑stack role. We welcome candidates who excel in one specialization and want to contribute to a high‑performance, mission‑critical trading platform.

Your Responsibilities:
As part of our engineering team, you will contribute to designing, building, and evolving components of our platform. Your exact focus will depend on your skills and preferences:

If you focus on back‑end development, you may:

Design, develop, and maintain highly performant services in Java/Kotlin.
Work with Spring Framework and SQL databases (PostgreSQL preferred).
Contribute to messaging/event‑driven systems and high‑performance communication layers.
Lead technical initiatives and drive architectural evolution.
Debug and resolve complex issues across distributed systems.

If you focus on front‑end development, you may:

Develop responsive, robust front‑end interfaces for our trading platform.
Work with HTML, CSS, JavaScript, and modern frameworks (e.g., React).
Integrate front‑end components with real‑time APIs and WebSocket‑based data streams.
Collaborate closely with UX/UI and product teams to refine user‑centric features.

If you prefer full‑stack responsibilities, you may combine both:

Build end‑to‑end features from design to production deployment.
Ensure seamless integration of client‑side and server‑side components.
Own full lifecycle improvements across the entire stack.

Your Profile:
You excel in either back‑end, front‑end, or full‑stack engineering. We encourage you to apply even if your strength lies mainly in one area:

Back-End Skills (Core)

Strong proficiency in Java (Java 17) and/or Kotlin
Experience with Spring Framework
Solid understanding of SQL (ideally PostgreSQL)
Experience with Hibernate or similar ORM frameworks
Familiarity with messaging/event‑driven architecture
Comfortable with Git-based version control
Experience with Protobuf/gRPC is a plus

Front-End Skills (Core)

Strong understanding of HTML, CSS, JavaScript, JSON
Experience building interfaces with REST APIs
Experience with JavaScript frameworks (e.g., React) is a plus

Full-Stack Profile

Combination of back‑end and front‑end strengths
Willingness to work across multiple areas of the platform
Openness to learning new technologies as needed

Nice to Have:

Experience with RabbitMQ Streams, AMQP, or other streaming technologies
Real‑time communication experience (e.g., WebSocket)
Familiarity with React, Node.js, and modern build tooling
Experience with Gradle or Maven
Knowledge of Docker, Jenkins, or container platforms like OpenShift

You can look forward to our benefit package:

Hybrid Work and Flexible working hours

Work from abroad - 12 days of remote work from EU countries per year

Group Share Plan - discount on company shares

Pension fund contribution - 3% of your gross salary (5% after 5 years with us)

Health & Wellbeing - fully covered Multisport card, life & accident insurance, sick days and 100% salary contribution during sick leave (up to 56 days)

25 vacation days

Mobility - fully covered public transport in Prague & free parking

Flexible Benefit Account (Pluxee) - 1200 per month

Personal Development - annual budget of €690 ... and way more!