Hashone Careers

Who We Are

We’re a small, global team shipping ambitious features at a pace that would overwhelm most.

The kind of pace where QA isn’t a back office function — it’s the heartbeat of everything we

ship. Our customers expect speed and trust. QA is where those two meet.

What We Need

We’re looking for a QA Specialist who thrives in fast-moving environments. Someone who can:

● Spot gaps before they become failures.

● Shift gears as priorities change — without losing accuracy.

● Push testing forward with the urgency of a live launch.

This isn’t about ticking boxes on a test plan. It’s about owning the quality of what reaches the

customer, no matter how quickly the roadmap evolves.

Your Craft

● 3–5 years of experience in software QA (manual, automated, or both).

● Fast learner who can get inside the product’s mind and test like a real user.

● Ability to design and execute test cases at lightning speed — without compromising

depth.

● Comfort with dynamic priorities: you can validate a demo at noon and regression test a

release by 6pm.

● Familiarity with QA tools, automation frameworks, and bug tracking — but more

importantly, the instinct to know what needs to be tested first.

Key Responsibilities

Backend Development

• Design, develop, and maintain scalable backend services using Rust, Python, and TypeScript.
• Build high-performance microservices and APIs for AI-driven products.
• Develop fault-tolerant, secure, and maintainable distributed systems.
• Design event-driven architectures and asynchronous processing pipelines.
• Implement caching, message queues, and database optimization strategies.

AI & Machine Learning Integration

• Build and maintain backend infrastructure supporting LLMs, Generative AI, RAG systems, and AI Agents.
• Integrate models from providers such as OpenAI, Anthropic, Gemini, and open-source LLMs.
• Develop vector search solutions using Pinecone, Weaviate, Qdrant, or similar technologies.
• Build AI workflows for content generation, summarization, sentiment analysis, and conversational intelligence.
• Optimize AI inference pipelines for performance and cost efficiency.

System Architecture

• Design scalable architectures capable of handling high traffic and large volumes of data.
• Develop real-time processing systems and data pipelines.
• Implement observability, monitoring, logging, and alerting mechanisms.
• Drive performance tuning and latency optimization across services.

Cloud & DevOps

• Deploy and manage applications on AWS, GCP, or Azure.
• Work with Docker, Kubernetes, CI/CD pipelines, and Infrastructure as Code.
• Ensure system reliability, security, and scalability. 

Job Description:

We are seeking a motivated and dynamic Adtech Sales Executive to join our growing

sales team and contribute to our revenue growth. In this role, you will assist in driving

sales initiatives, building relationships with clients, and promoting our innovative adtech solutions. This is an exciting opportunity to make a meaningful impact on our company’s success in the digital advertising space.

Responsibilities:

● Support the sales team in achieving revenue targets and exceeding sales goals.

● Assist in the development and execution of strategic sales plans to drive business growth and expand our customer base.

● Help identify target brands and new business opportunities that will utilize our advertising platform through data-driven marketing methods.

● Build and maintain strong relationships with key clients and industry partners.

● Present our adtech solutions to clients, emphasizing their unique value and benefits.

● Participate in negotiations and support efforts to secure contracts and close deals

with clients.

● Collaborate with cross-functional teams, including product development, marketing, and customer support, to align sales strategies with business objectives.

● Stay informed about industry trends, competitor activities, and market developments to identify opportunities for growth.

● Provide regular sales updates and feedback to senior management, highlighting key metrics and areas for improvement.

Qualifications:

● Bachelor’s degree in Business Administration, Marketing, or a related field.

● Preferred experience from Out of Home (OOH) agencies or media owners.

● Strong interpersonal skills with the ability to build relationships and engage clients effectively.

● Understanding of adtech platforms, programmatic advertising, and the digital marketing ecosystem.

● Results-oriented mindset with the ability to thrive in a fast-paced environment.

● Proficiency in CRM software and Microsoft Office Suite.

● Willingness to travel as needed.

Your Craft:

● JavaScript/TypeScript & NodeJS flows through your fingers like a native language

● Next.js is your framework of choice for building full-stack magic

● Rust makes your heart sing when performance is non-negotiable

● Golang/Python feel like comfortable old friends (nice to have)

● MySQL/Postgres/Redis are tools you wield with intention

● AWS ecosystem is your playground, not your puzzle

● LLM/AI integration is something you've actually shipped, not just read about