
StellarTech
At StellarTech, we believe that education can be both enjoyable and meaningful. We launch educational apps that illuminate minds across the universe! Driven by x1000 mindset, strong values, and brilliant people, we empower millions to become better humans!
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· 103 views · 49 applications · 4d
Senior Python Developer
Full Remote · EU · 5 years of experience · Upper-IntermediateInternational rapidly growing product IT company StellarTech is looking for a Senior Python Developer. Responsibilities: Develop backend applications from scratch for StellarTech Platform. Working with internal stakeholders' expectations/requirements,...International rapidly growing product IT company StellarTech is looking for a Senior Python Developer.
Responsibilities:
- Develop backend applications from scratch for StellarTech Platform.
- Working with internal stakeholders' expectations/requirements, actively contributing to platform features discussions.
- Participation in the architecture decision-making process.
- Ensure the performance, quality, and stability of the platform.
- Troubleshoot and debug issues.
Requirements:
- 5+ years of working experience as a Backend Developer, 2+ years of experience with Python.
- Understanding of the existing Python ecosystem.
- Experience with data-intensive/high-load application development.
- Deep understanding of relational/NoSQL database technologies.
- Experience with CI/CD tools (we use GitHub Actions).
- Understanding of message queues/message brokers working principles.
- Practical experience with services/microservices architecture and event-based systems.
- Vast experience in integration with external platforms and services
- Ability to use tools and approaches that speed up development (co-pilot, etc.)
Nice to have:
- Understanding of cloud services (we use AWS) and cloud concepts.
- Experience with Kubernetes.
- Experience in marktech, fintech companies is a plus
- Analytical vision and ability to consider future perspectives in service design
Why You'll Love Working With Us:
- Impactful Work: Your contributions will directly shape the future of our company.
- Innovative Environment: We're all about trying new things and pushing the envelope in EdTech.
- Freedom: flexible role based either remotely or hybrid from one of our offices in Cyprus, Poland.
- Health: we offer Health Insurance package for hybrid mode (Cyprus, Poland) and health corner in the Cyprus office.
- AI solutions — GPT Chat bot/ Chat GPT subscription and other tools.
- Wealth: we offer a competitive salary.
- Balance: flexible paid time off, you get 21 days of annual leave + 10 bank holidays.
- Collaborative Culture: Work alongside passionate professionals who are as driven as you are.
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· 86 views · 16 applications · 4d
Data Engineer
Full Remote · EU · 5 years of experience · Upper-IntermediateHello, fellow data engineers! We are Stellartech - an educational technology product company, and we believe in inspiration but heavily rely on data. And we are looking for a true pipeline detective and zombie process hunter! Why? Because we trust our...Hello, fellow data engineers! We are Stellartech - an educational technology product company, and we believe in inspiration but heavily rely on data. And we are looking for a true pipeline detective and zombie process hunter!
Why? Because we trust our Data Platform for daily business decisions. From “What ad platform presents us faster? Which creative media presents our value to customers in the most touching way?” to “What would our customers like to learn the most about? What can make education more enjoyable?”, we rely on numbers, metrics and stuff. But as we are open and curious, there’s a lot to collect and measure! That’s why we need to extend, improve and speed up our data platform.
That’s why we need you to:
- Build and maintain scalable data pipelines using Python and Airflow to provide data ingestion, transformation, and delivery.
- Develop and optimize ETL/ELT workflows to ensure data quality, reliability, and performance.
- Bring your vision and opinion to define data requirements and shape solutions to business needs.
- Smartly monitor, relentlessly troubleshoot, and bravely resolve issues in data workflows, striving for high availability and fault tolerance.
- Propose, advocate, and implement best practices for data storage and querying using AWS services such as S3 and Athena.
- Document data workflows and processes, ensuring you don’t have to say it twice and have time for creative experiments. Sure, it’s about clarity and maintainability across the team as well.
For that, we suppose you’d be keen on
- AWS services such as S3, Kinesis, Athena, and others.
- dbt and Airflow for data pipeline and workflow management.
- Application of data architecture, ETL/ELT processes, and data modeling.
- Advanced SQL and Python programming.
- Monitoring tools and practices to ensure data pipeline reliability.
- CI/CD pipelines and DevOps practices for data platforms.
- Monitoring and optimizing platform performance at scale.
Will be nice to
- Understand cloud services (we use AWS), advances, trade-offs, and perspectives.
- Keep in mind the analytical approach and the ability to consider future perspectives in system design in daily practice and technical decisions
Why You'll Love Working With Us:
- Impactful Work: Your contributions will directly shape the future of our company.
- Innovative Environment: We're all about trying new things and pushing the envelope in EdTech.
- Freedom: flexible role based either remotely or hybrid from one of our offices in Cyprus, Poland.
- Health: we offer Health Insurance package for hybrid mode (Cyprus, Poland) and health corner in the Cyprus office.
- AI solutions — GPT Chat bot/ Chat GPT subscription and other tools.
- Wealth: we offer a competitive salary.
- Balance: flexible paid time off, you get 21 days of annual leave + 10 bank holidays.
- Collaborative Culture: Work alongside passionate professionals who are as driven as you are.
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· 161 views · 28 applications · 16d
Engineering Manager
Full Remote · EU · 7 years of experience · Upper-IntermediateInternational rapidly growing product IT company StellarTech is looking for a hands-on Engineering Manager to lead a high-performing dev team (10–15) of Front-End (mobile, web), backend (python), QA to organise a super efficient team with Product Managers...International rapidly growing product IT company StellarTech is looking for a hands-on Engineering Manager to lead a high-performing dev team (10–15) of Front-End (mobile, web), backend (python), QA to organise a super efficient team with Product Managers and Designers. If you’re passionate about building scalable mobile products, optimizing team delivery, and leveraging AI tools to drive engineering excellence - this is the best place.
What You’ll Do
Key goals include:
- Speeding up product delivery with high quality and reliability
- Ensuring robust performance monitoring and continuous improvement
- Driving effective alignment between engineering, product, and design
- Owning technical governance and development standards in Mobile products
- Leveraging AI tooling for enhanced productivity and innovation
Technology Leadership in Mobile Apps
- Set and enforce architecture standards, code quality, and documentation
- Lead design reviews and provide architectural guidance
- Drive adoption and integration of product excelence tooling for A\B testing, etc.
Software Delivery & Operations
- Establish delivery practices that best suit our goals and team composition
- Oversee planning, execution, and delivery of products features with Product Managers
- Manage planning, velocity tracking, and delivery commitments
- Ensure timely releases with high code quality and test coverage
- Leading technological initiatives and wisely manage techdebt
Performance & Monitoring
- Define and track key application performance indicators and tooling to control it
- Lead initiatives on app performance optimization and incident response
- Oversee deployment, uptime monitoring, and automated alerting
AI Tooling & Automation
- Integrate AI-based development and testing tools to boost productivity
- Lead adoption of AI-tooling ensuring its positive impact on delivery
- Foster a culture of experimentation and innovation
Cross-Functional Alignment
- Collaborate closely with product managers, designers, and leadership
- Translate business objectives into technical execution plans and sharing joint business goals
- Support roadmap prioritization through technical overview & feasibility insights
Team Leadership & CultureWhat We’re Looking For
- 3+ years of experience in an Engineering Manager or similar leadership role
- Wide experience in leading Product Engineering teams and forming product engineering culture
- Proficient knowledge in mobile development processes, tooling (engagement), and architecture
- Experience in leading of mulitple dev teams (feature teams) across single product and organising seamless & stable delivery
- Strong hands-on background in mobile tech stack (Flutter, Python, FastAPI)
- Practical experience of integrating AI-solutions (LLMs, chatbots, etc) to foster functionality and engagement
- Production experience with AI-assisted development tools (e.g., GitHub Copilot, Cursor, Claude Code, etc.)
- Strong understanding of AWS services, including Lambda, EC2, S3, RDS, CloudWatch, SNS/SQS
- Familiarity with Firebase, PostgreSQL, and MongoDB
- Experience with CDNs and optimizing API and app performance for global delivery
- Proficient in monitoring, logging, and troubleshooting (e.g., with tools like Datadog, Prometheus, Sentry)
- Knowledge of CI/CD pipelines, Git workflows, and automated testing
- Deep familiarity with mobile app release processes (Google Play, App Store)
- Strong understanding of Product metrics (Activation, Retention, Engagement, etc.) and ability to track them with SDLC and after
- Familiarity with a ShapeUp approach in product development design (basecamp framework)Why You'll Love Working With Us:
- Impactful Work:
Your contributions will directly shape the future of our company.- Innovative Environment:
We're all about trying new things and pushing the envelope in EdTech.- Freedom:
flexible role based either remotely or hybrid from one of our offices in Cyprus, Poland.- Health:
we offer Health Insurance package for hybrid mode (Cyprus, Poland) and health corner in the Cyprus office.- AI solutions:
GPT Chat bot/ Chat GPT subscription and other tools.- Wealth:
we offer a competitive salary.Balance: flexible paid time off, you get 21 days of annual leave + 10 bank holidays.
- Collaborative Culture:
Work alongside passionate professionals who are as driven as you are.
We’re waiting for your CV
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· 15 views · 0 applications · 11d
Head of Tax/Senior Tax Manager
Full Remote · EU · 5 years of experience · Advanced/FluentAbout Us International rapidly growing product IT company StellarTech is looking for a Head of Tax. In this role, you will act as a trusted partner to the COO, owning the end-to-end tax function across all jurisdictions. You’ll ensure compliance with...About Us
International rapidly growing product IT company StellarTech is looking for a Head of Tax. In this role, you will act as a trusted partner to the COO, owning the end-to-end tax function across all jurisdictions.
You’ll ensure compliance with complex international tax regimes, close out risks— from employment taxes and CIT, with main focus on digital taxes—and drive full automation of tax processes to support our ad-tech products’ explosive growth.
What You’ll Do
International Tax Strategy & Compliance
- Develop and implement a global tax strategy aligned with the company’s ad-tech business model.
- Oversee compliance in all operating jurisdictions, partnering with local advisors for timely filings.
- Lead nexus determinations and ensure accurate collection, reporting, and filing of U.S. sales/use taxes across states.
- Lead projects on indirect tax compliance in new jurisdictions (Australia, Canada, etc.)
- Manage transfer pricing policies, application of corresponding tax regimes (i.e. IP box) and digital services tax exposure.
- Developing strategies to reduce tax liabilities within the legislative framework.Cyprus Tax & Other Jurisdictions
- Serve as in-house expert on Cyprus Corporate Income Tax: prepare statutory returns, relief claims, and liaise with Cyprus Tax Authorities.
- Ensure compliance with VAT, payroll tax, and statutory reporting.Tax Risk Management
- Continuously identify, assess, and mitigate tax risks—from employment and contractor classification to CIT and emerging digital taxes.
- Partner with Legal, HR, and Finance to resolve disputes, audits, and contentious issues.Tax Reporting & Audits
- Coordinate and drive local and consolidated tax audits.
- Prepare detailed tax provisions, disclosures, and management reports for internal and external stakeholders.Process Automation & Systems
- Evaluate, select, and implement tax technology solutions (e.g., Avalara, Vertex, RPA) to automate calculations, filings, and reporting workflows.
- Integrate tax data streams with ERP and finance systems to eliminate manual interventions.
- Champion continuous improvement: build dashboards and automated alerts for key tax KPIs.Collaboration & Leadership
- Lead, mentor, and develop a lean and high-performing in-house tax team (and manage external advisors where applicable).
- Set clear objectives, conduct regular performance reviews, and foster a culture of accountability and knowledge-sharing.
- Act as the primary tax advisor to cross-functional teams—Finance, Product, Legal, and HR—providing timely, actionable guidance.Strategic Advisory
- Advise on tax implications of new product launches, market entries, and corporate restructurings.
- Monitor global tax law changes; proactively adjust policies to safeguard the company’s competitive position.What We’re Looking For
- International Taxation: Deep expertise in digital services taxes, with good understanding of OECD BEP, income tax, transfer pricing.
USA Sales Tax & Nexus: In-depth knowledge of U.S. state-level sales/use tax, nexus rules, registrations, filings.
- Cyprus Tax: Strong command of Cyprus CIT regime, tax filings, incentives, and statutory reporting.
- Risk Mitigation: Proven track record managing employment-tax, CIT, VAT, digital tax, and audit exposures.
- Automation: Hands-on experience with tax engines (Avalara, Vertex), RPA, or custom scripting to automate tax workflows.
- Technical Proficiency: Advanced Excel (macros, VBA), familiarity with ERP-tax integrations, and tax-provision software.
- Language: English – Upper-Intermediate or higher (verbal and written).Hard skills - Nice to have
- Exposure to IFRS tax disclosures and international audit coordination.
- Familiarity with additional regional regimes (e.g., AED VAT, EU VAT OSS).
- Experience with data-analytics tools (Alteryx, Power BI) for tax data visualization.Why You'll Love Working With Us:
- Impactful Work: Your contributions will directly shape the future of our company.
- Innovative Environment: We're all about trying new things and pushing the envelope in EdTech.
- Freedom: flexible role based either remotely or hybrid from one of our offices in Cyprus, Poland.
- Health: we offer Health Insurance package for hybrid mode (Cyprus, Poland) and health corner in the Cyprus office.
- AI solutions: GPT Chat bot/ Chat GPT subscription and other tools.
- Wealth: we offer a competitive salary.
Balance: flexible paid time off, you get 21 days of annual leave + 10 bank holidays.
- Collaborative Culture: Work alongside passionate professionals who are as driven as you are.
We’re waiting for your CV
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