Senior Software Engineer - Java

Lobster; Bernau; Hybrid; EUR 60.000 - 80.000; Vollzeit

Benefits dieser Stelle

Flexible work from home

Learning & Development budget

Company pension plan

30 vacation days

Paid days off on Christmas Eve and New Year's Eve

Zusammenfassung

Lobster is looking for a Senior Software Engineer (m/f/x) with a focus on Java and Networking to join our Engineering team. This hybrid or on-site role can be based in our HQ in Tutzing (near Munich) or Amsterdam. The ideal candidate has 3-6 years of backend development experience, a strong understanding of Java networking, and is skilled in designing scalable, reliable backend systems. We offer flexible working opportunities and a commitment to fostering an inclusive environment.

Qualifikationen

• 3–6 years of experience in backend development with strong Java skills.
• Solid understanding of Java networking including NIO and HTTP tunnelling.
• Experience with Netty or similar async networking frameworks.

Aufgaben

• Develop core backend components for the Data Platform.
• Design network-layer solutions in Java.
• Collaborate with QA and Product teams for high-quality releases.

Kenntnisse

Java

Networking internals

Debugging

Test automation

Concurrency

Tools

Netty

PostgreSQL

Kafka

Jobbeschreibung

Position Overview

This is a vacancy for a hybrid or on-site role at our HQ in Tutzing (South of Munich) or Amsterdam. We encourage applications from all qualified candidates, regardless of gender identity. As we continuously expand and improve our Data Platform, we are seeking a Senior Software Engineer m/f/x (Java & Networking focus) to join our Engineering department.

Responsibilities

• Developing, testing, and deploying core backend components of our Data Platform, with a focus on performance, reliability, and scalability.
• Designing and implementing network‑layer solutions in Java, including HTTP tunnelling, TCP/IP communication, and Netty‑based pipeline architectures.
• Building and maintaining load‑balancing strategies and understanding their role in distributed, high‑availability systems.
• Designing integrations that combine cloud systems with on‑premises data sources for a seamless operations experience.
• Contributing to technical designs and actively participating in code reviews to ensure clean, maintainable, and production‑grade code.
• Actively integrating AI tools into your engineering workflow—using them to accelerate engineering, automate repetitive tasks, improve code quality, and explore solutions faster. We look for curiosity and initiative, not just the ability to rely on autocomplete.
• Collaborating closely with QA and Product teams to deliver reliable, high‑quality releases.

Qualifications

• Around 3–6 years of experience in backend development, with strong hands‑on skills in Java.
• Solid understanding of Java networking internals—including NIO, sockets, HTTP/HTTPS tunnelling, and proxy protocols.
• Practical experience with Netty or similar async networking frameworks (e.g., Vert.x, gRPC); ability to reason about event loops, channel pipelines, and non‑blocking I/O.
• Knowledge of load‑balancing concepts—L4/L7 load balancing, connection pooling, health checks, and failover strategies.
• Strong debugging skills and a structured, solution‑oriented mindset—particularly when dealing with low‑level networking or concurrency issues.
• Solid experience with test automation (e.g., JUnit, Mockito, or similar frameworks) and a commitment to well‑tested, maintainable software.
• Hands‑on experience with at least one database technology: PostgreSQL, Oracle, MSSQL, MySQL, or MongoDB.
• Good understanding of integration protocols: HTTP/HTTPS, REST, WebSocket, orgRPC.
• Confidence with concurrency and multithreading in Java—thread safety, executors, reactive patterns.
• Some exposure to asynchronous messaging systems (e.g., Kafka, AMQP, MQTT).
• A proactive attitude toward AI‑augmented engineering—you actively use AI tools (LLM assistants, code generation, automation agents, etc.) to improve your own productivity and the quality of your output. You think about where AI can reduce friction in your workflow and bring that mindset to the team.
• Familiarity with TypeScript is a welcome plus, but not a requirement.
• Clear communication skills in English; sufficient German for everyday collaboration is a welcome plus, but not a requirement.

Benefits

• Opportunity to work flexibly from home.
• Modern offices in Germany and the Netherlands.
• A personal Learning & Development budget.
• Up to 30 days of remote work per year from any EU country.
• 2 additional paid days off on Christmas Eve and New Year's Eve.
• Company pension plan.
• 30 vacation days a year.
• Location‑specific benefits packages (details provided by recruiters).
• Company‑sponsored business travel.

For this role, we are open to working with specialists based in Germany or the Netherlands. Whether you prefer working on‑site at our offices in Tutzing, Amsterdam, or remotely from a location within one of these countries, we’re happy to accommodate your preferred working style.

Equal Opportunity Statement

Lobster is an equal opportunity employer. We are committed to fostering a diverse and inclusive environment where empathy and respect guide our interactions.

About Us

Lobster is a pioneering no‑code software company that enables organisations to unlock the full potential of their data. Its comprehensive Data Platform allows companies to integrate, manage, and automate data efficiently, while its Data Network facilitates secure and seamless data exchange between partners and systems. From connectivity to consumable Data Products, Lobster’s solutions empower businesses across industries to stay agile and competitive. With a presence in DACH, the UK, France, Scandinavia, and the Benelux region, Lobster serves over 2,000 customers globally.