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Senior Back-end Engineer ( Accessibility Product House)
Sigma Software · Remote, Masovian Voivodeship, Poland
About The Role
- Design and implement scalable, distributed Back-end solutions for a SaaS platform
- Architect and deliver complex systems focused on accessibility compliance and platform scalability
- Develop and maintain microservices and cloud-native applications
- Plan, execute, and support large-scale software delivery pipelines
- Monitor system health, troubleshoot production issues, and optimize service performance
- Research, evaluate, and integrate modern technologies into the Back-end ecosystem
- Collaborate with cross-functional teams on architecture evolution and technical strategy
- Contribute to infrastructure and SaaS architecture decisions
- Improve reliability, scalability, observability, and maintainability of distributed systems
- Utilize AI-assisted development practices and tools within the software delivery lifecycle
- Participate in code reviews, technical discussions, and engineering best practices initiatives
- 5+ years of experience as a Software Engineer including at least 1 year of extensive AI SDLC experience
- Strong Back-end development experience in at least 2 of the following programming languages: Golang (primary), Kotlin, or other JVM-based languages
- Hands-on experience with AI coding tools such as Claude Code, Cursor, Microsoft Copilot, or similar
- Proficiency with at least one major cloud provider such as GCP, AWS, or Azure, including serverless and container-based deployments
- Some experience with Elasticsearch and BigQuery
- Familiarity with multiple data stores and services including SQL, NoSQL, Elasticsearch, BigQuery, etc.
- Proficiency with at least one messaging or streaming system such as Kafka, Flink, Spark, Pub/Sub, or RabbitMQ
- Knowledge of high-scale stream and batch processing systems including Flink, Spark, and Kafka
- Strong background in microservices architecture, distributed systems, serverless solutions, and high-scalability systems
- Familiarity with production monitoring and performance optimization
- Familiarity with CI/CD pipelines and deployment processes
- At least Upper-Intermediate level of English
WILL BE A PLUS
- Familiarity with ClickHouse
- Experience in Full Stack and/or Front-end development
- Experience with accessibility-related products or compliance-focused systems
- Experience working with AI-enabled SaaS platforms
PERSONAL PROFILE
- Independent and proactive mindset
- Strong problem-solving skills
- Passion for learning and adopting new technologies
- Excellent communication and collaboration skills
- Team-oriented attitude with commitment to high-quality delivery
- Ability to work effectively in a fast-paced and evolving environment
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