Senior Software Engineer

Sybilla Technologies limited; Polska; Remote; PLN 193,000 - 234,000; Full time

Benefits offered by this job

Private medical care (LuxMed)

Multisport card

Remote‑first working model

Flexible working hours

Job summary

Sybilla Technologies designs, builds and operates robotic optical observatories for space observation. We seek a Senior Software Engineer to develop high‑performance software for autonomous optical systems using .NET, distributed architectures, and cloud‑native solutions.

You will design, implement, and maintain software for Abot, A24N and AstroDrive, collaborating with cross‑functional teams to deliver scalable solutions and robust backend services in a remote‑first, Poland‑based environment.

Qualifications

• 6+ years of commercial experience in developing software applications using .NET.
• Advanced knowledge of the .NET ecosystem, software design principles, patterns, and architectures.
• Strong experience with relational databases and Entity Framework.
• Experience with message brokers (RabbitMQ) and event‑driven architecture.
• Knowledge of Docker containerization and Kubernetes orchestration.
• Professional proficiency in English for technical documentation.

Responsibilities

• Design, develop, and maintain software components for Sybilla's Optical Systems and products.
• Deliver new features and improve observational capabilities with scalable software solutions.
• Collaborate with cross‑functional teams to translate requirements into reliable software.
• Contribute to software architecture and design decisions for maintainability and scalability.
• Build and optimize backend services, APIs, and integrations with other systems.
• Write clean, well‑tested code and participate in code reviews.

Skills

NET development

Relational databases

RabbitMQ & event‑driven

Docker & Kubernetes

Distributed systems

English proficiency

Education

Higher education in Computer Science or STEM

Tools

RabbitMQ

Docker

Kubernetes

Entity Framework

Job description

About Sybilla Technologies

Sybilla Technologies designs, builds and operates robotic optical observatories for monitoring objects in space. The company specializes in complete systems, software for automated data acquisition, analysis, and scheduling networks of sensors. We work in the domains of Space Situational Awareness, Space Surveillance and Tracking, Space Traffic Management, stellar and planetary research, education, and commercial on-demand observations.

About The Role

Space is becoming increasingly driven by software - and we're building the technology behind it. At Sybilla Technologies , you'll develop high-performance software for autonomous optical systems used in space observation, working with modern .NET technologies, distributed architectures, and cloud-native solutions. We're looking for an experienced Senior Software Engineer who enjoys solving complex problems, takes ownership of their work, and wants to build products that have a real impact.

As a Senior Software Engineer, you will:

• Design, develop, and maintain software components for Sybilla's Optical Systems, including Abot, A24N, and AstroDrive products.
• Deliver new features and continuously improve Sybilla's observational capabilities by implementing high-quality, scalable software solutions.
• Collaborate with cross-functional teams to translate business and technical requirements into reliable software.
• Contribute to software architecture and technical design decisions, ensuring maintainability and scalability.
• Build and optimise backend services, APIs, and integrations with other system components.
• Write clean, well-tested, and maintainable code while following software engineering best practices.
• Participate in code reviews and actively contribute to improving development processes and engineering standards.
• Troubleshoot, debug, and resolve complex technical issues across the platform.

Essential Experience

• 6+ years of commercial experience in developing software applications using .NET.
• Advanced knowledge of the .NET ecosystem, software design principles, design patterns, and architectural approaches, including monolithic, modular monolith, and microservices architectures.
• Strong experience with relational databases and Entity Framework.
• Experience with message brokers (especially RabbitMQ) and event‑driven architecture.
• Good knowledge of Docker containerization, Kubernetes orchestration, and application hosting.
• Ability to work independently with a strong sense of ownership, initiative, and accountability.
• Professional proficiency in English, enabling effective communication and understanding of technical documentation.
• Interest in the space industry and space‑related technologies.

Nice to Have

• Higher education in Computer Science, Physics, Mathematics, or another STEM discipline.
• Experience in designing, implementing, and maintaining automated data processing workflows and pipelines.
• Frontend development experience with Blazor, Angular, or React.
• Knowledge of Python scripting.
• Strong understanding of statistics and numerical methods, particularly in mathematics, physics, or astrophysics.

What We Offer

• The opportunity to develop software powering next‑generation optical systems for space observation and Space Domain Awareness.
• Challenging engineering work involving distributed systems, cloud‑native technologies, and scalable .NET applications.
• The opportunity to influence software architecture, technical decisions, and the future direction of our products.
• A collaborative environment where your ideas have a direct impact on products used in real‑world space applications.
• The chance to work alongside highly skilled engineers tackling complex technical challenges.
• A r emote‑first working model , with our headquarters located in Bydgoszcz.
• Flexible working hours and full‑time employment.
• Private medical care (LuxMed).
• Multisport card.
• Compensation package which will be shaped based on your skills and experience: B2B: PLN 140-170 net/hour
• Opportunity to work alongside highly skilled engineers solving technically demanding problems with real impact

As part of your participation in the recruitment process, we will process your personal data. The controller of your personal data is Sybilla Technologies sp. z o.o., with its registered office in Bydgoszcz. The legal basis for processing personal data specified in the Polish Labour Code is the necessity to process such data in order to conclude a contract between the parties (Article 6(1)(b) of the GDPR). The legal basis for processing other data included in your application documents is your consent (Article 6(1)(a) of the GDPR). By providing us with personal data not specified in the Labour Code in your CV or other recruitment documents, you consent to their processing. You can contact the data controller by sending an email to: or by post to: ul. Toruńska 59, 85-023 Bydgoszcz, Poland. If you would like to participate in future recruitment processes as well, please include the following clause in your CV: “I consent to the processing of my personal data by Sybilla Technologies sp. z o.o. also for the purposes of future recruitment processes.”