Middle/Senior Typescript/Node.js Developer, AI Experience

🔥 31 minutes ago

🇵🇱 Poland – Remote

⏰ Full Time

🟠 Senior

🤖 AI Engineer

👻 Ghost score 10%

What it means: how likely this posting is sitting open without active hiring.How to read it: 60% or higher means we think this is a ghost. Lower scores are less of a worry.How we score it: age, reposts, open roles vs team size, how fast jobs close, and whether pay is listed.Fine print: an estimate from public data, not a judgment of the company. Real jobs can score high, so treat it as a hint, not a fact.

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Sigma Software Group

WebsiteLinkedInAll Job Openings

1001 - 5000 employees

Founded 2002

💼 Consulting

🏥 Healthcare

🚘 Automotive

Consulting • Healthcare • Automotive

Sigma Software Group is a multinational company, established in 2002, that specializes in providing high-quality software development, graphic design, testing, and support services. The company focuses on delivering solutions across various industries such as automotive, telecommunications, aviation, advertising, gaming, banking, real estate, and healthcare. Sigma Software values professional growth, offers remote work opportunities worldwide, and caters to world-renowned clients like AstraZeneca, Scania, and SAS. The company emphasizes a culture of continuous education, mentorship, and flexible work environments, making it a preferred workplace for IT specialists aiming to work on complex solutions utilizing cutting-edge technologies. Sigma Software is committed to innovative solutions and engineering the future while also contributing to social causes such as charitable work in Ukraine.

📋 Description

• Develop and maintain high-performance back-end microservices and AI-enabled services using TypeScript and Node.js • Design, implement, and integrate AI- and LLM-powered platform features • Build scalable serverless solutions using AWS Lambda, API Gateway, DynamoDB, and EventBridge • Collaborate with cross-functional teams on API-first architecture and OpenAPI specifications • Ensure tenant data isolation and compliance with established AdTech data models • Contribute to reusable libraries, templates, AI integration patterns, and engineering standards • Participate in code reviews focused on performance, reliability, observability, and service quality • Translate product and AI feature requirements into scalable technical solutions • Support the platform transformation toward automation, standardization, and intelligent reusability • Contribute to continuous improvement initiatives and technical decision-making processes

🎯 Requirements

• 7+ years of commercial experience as a Back-end Developer • Strong hands-on experience with TypeScript and Node.js • Experience building API-first microservice architectures • Practical experience integrating AI services, LLM APIs, or AI-assisted workflows • Hands-on experience with AWS serverless technologies including Lambda, API Gateway, DynamoDB, and EventBridge • Understanding of RESTful and GraphQL APIs • Knowledge of prompt engineering concepts and AI integration approaches • Understanding of multi-tenant architectures and logical data isolation principles • Interest in AdTech products, automation, and AI-driven optimization • Upper-Intermediate or higher English level • Strong analytical and problem-solving skills • Proactive and ownership-driven mindset • Passion for modern Back-end engineering and AI technologies • Ability to collaborate effectively within distributed international teams • Interest in innovation, experimentation, and continuous learning • Strong communication skills and attention to engineering quality • Plus: Experience with ML and AI experimentation projects • Plus: Exposure to recommendation systems or data intelligence platforms • Plus: Experience working with vector databases • Plus: Familiarity with Infrastructure as Code tools such as Terraform or CloudFormation • Plus: Understanding of observability and monitoring practices in distributed systems • Plus: Experience working with scalable cloud-native architectures

🏖️ Benefits

• Remote work arrangement • Opportunity to grow expertise in AI integrations, cloud platforms, and scalable distributed systems • Work on a product trusted by globally recognized publishers • Distributed international team collaboration • Continuous learning and experimentation opportunities