We are looking for you! As we continue to shape the future of AdTech and MarTech with groundbreaking web applications, we're seeking a strong Full-stack Engineer with unparalleled expertise in Java and Angular. The project focus is to extend the existing CAPI (Conversion API) platform by developing additional connectors to advertising and technology platforms. CAPI takes advertiser conversion data from AWS S3, transforms it into the format required by each destination, and sends it through the destination platform’s API for measurement and optimization. The current platform already supports Google and Meta; the project will add Amazon as the highest-priority integration, followed by OpenAI and other destinations. The focus is on extending the existing platform rather than rebuilding the upstream data pipeline. If you're a seasoned professional, we want you on our team. Contract type: Gig contract. Skills and experience you can bring to this role! Qualifications & Experience: 5+ years of commercial experience in software development; Strong Java Core and Spring Framework work experience (Core, Security, Data, Boot); Knowledge of OOP/OOD, architecture, and design patterns; Experience with relational databases (MySQL would be a plus); AWS experience: API Gateway, CloudFront, S3, RDS, Lambda, EC2, VPC, ElastiCache, Kinesis, DynamoDB; Curiosity about current tech trends and developments; Solid experience with HTML, CSS, and JavaScript; Extensive experience with Angular (version 17+) and its ecosystem; Hands-on experience with Scrum-based Software Development Life Cycles (SDLC); Comprehensive experience using Git/GitHub for version control; Experience creating unit tests for web components using tools like Cypress, Jasmine, or Karma; Strong communication skills; Good English skills and willingness to speak directly with the customer. Would be a plus: Experience with developing high-load systems and utilization of message queue engines such as Apache Kafka, Amazon SQS, etc.; Experience working with Terraform, Elasticsearch, REST APIs, Apache Druid, TypeScript, SQL. What impact you’ll make Participate in requirement analysis, research implementation ways and possibilities; Proactively engage in research, discussions and decisions on software architecture and internal coding style, including architecture, process, and other standards establishments; Design, develop and maintain efficient, reusable and reliable code; Write unit and integration tests; Collaborate with the team members and customer representatives; and Perform code reviews and share best practices with colleagues. What you’ll get Regardless of your position or role, we have in place a wide array of benefits, including flexible working (hybrid/remote models) and generous time-off policies (unlimited vacations, sick and parental leaves) to make it easier for all people to thrive and succeed at Star. On top of that, we offer an extensive reward and compensation package, intellectually and creatively stimulating space, health insurance and unique travel opportunities. Your holistic well-being is central at Star. You'll join a warm, vibrant multinational environment filled with impactful projects, career development opportunities, mentorship and training programs, fun sports activities, workshops, networking and outdoor meet-ups.