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Celtra

Software Developer - Mid / Senior

ScalaNodeJSPHPMySQLSparkSnowflakeMongoDBKinesisVue.jsTypescriptJavaScriptCSSHTMLGolangAWSECSCI/CDIaCAIAI-assisted developmentCursorsoftware developmentproduct cyclearchitectureweb technologiesbackendfrontend

Key details

Salary

Not specified

Employment type

Full-time

Seniority

Mid-level

Years experience

3-5

Location

Ljubljana, Slovenia

Full job description

Celtra is seeking a mid-level full-time software engineer with 2-4 years of experience to work on complex projects involving backend and frontend technologies. Responsibilities include executing complex projects, preparing technical specifications, driving full product cycles, optimizing architecture, and supervising smaller tasks. The tech stack includes Scala, NodeJS, PHP, MySQL, Spark, Snowflake, MongoDB, Kinesis, Vue.js, Typescript, JavaScript, CSS, HTML, Golang, AWS, ECS, CI/CD, IaC, and AI-assisted development tools like Cursor. Candidates should have experience with modern web technologies and frameworks, backend technologies, and a genuine interest in AI/ML. The role offers hybrid work options in Ljubljana, Slovenia, flexible schedules, continuous education budgets, equipment choice, pension and health insurance, and wellness budgets.

What you'll do

  • Executing complex projects and performing deep code surgery as needed
  • Preparing clear and concise technical specifications for complex features
  • Independently driving a full product cycle for features and improvements
  • Optimizing architecture for maintainability and composability
  • Delegating and supervising smaller tasks

Requirements

  • 2-4 years of experience in a similar position
  • Experience with modern web technologies (JavaScript, TypeScript, CSS, HTML)
  • Experience with frameworks (VueJS, React, Angular)
  • Experience with back-end technologies (PHP, Golang, etc.)
  • Genuine interest in AI/ML (models, agents, etc.) and exploring new technologies
  • Proactive, analytical, good communicator, and team player
  • Product mindset

Tech stack

ScalaNodeJSPHPMySQLSparkSnowflakeMongoDBKinesisVue.jsTypescriptJavaScriptCSSHTMLGolangAWSECSCI/CDIaCAI-assisted developmentCursor

Benefits

Hybrid working (work from home or Ljubljana office)Flexible scheduleContinuous education budget up to 1000 EUR per year for conferences, books, and coursesEquipment of your choiceKnowledge sharesAdditional pension and health insuranceWFH budget of 500 EUR for home setupEmployee well-being budget for wellness activities such as fitness, yoga, etc.

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