{ “@context”: “http://schema.org”, “@type”: “JobPosting”, “title”: “Fullstack Software Engineer”, “description”: “
Requirements
- If you love solving real-world problems, thrive in fast-paced environments, and take pride in shipping great products, this role is for you
- 5+ years building in Node.js, React, TypeScript, and Express
- Strong with PostgreSQL, Redis, and cloud environments (AWS: Fargate, Lambda, EC2, SQS)
- Familiar with CI/CD (CodePipeline, GitHub Actions, or similar)
- Experience integrating with LLMs in production
- Experience with microservices and scalable systems
- Product-driven—you care about the impact of what you ship, not just the code
- AI-first—you live in Cursor, Claude Code and are comfortable orchestrating coding agents
- Naturally curious and proactive; you don’t wait for instructions, you create momentum
- (Desirable) Next.js, Python, or event-driven architectures
- (Desirable) Infra-as-code (Terraform, CDK)
- (Desirable) Event-driven architecture experience
What the job involves
- As a fullstack engineer at Siena, you’ll own projects end-to-end, developing and optimizing features within our AI-powered customer support automation platform. You’ll work closely with product, shaping our roadmap while building reliable, high-performance systems
- Your code will power millions of monthly customer interactions across global brands, where reliability and speed directly impact business outcomes
- Design, build, and maintain scalable features across the full stack (frontend, backend, and infra)
- Collaborate with Product to break down scope into iterative, high-impact releases
- Integrate cutting‑edge LLM capabilities into real enterprise workflows
- Work on an AI‑first product, integrating cutting‑edge LLM capabilities into enterprise customer support workflows
- Solve complex engineering challenges, from optimizing API performance to refining microservices architecture
- Maintain and improve our cloud infrastructure (AWS) with a DevOps mindset
- Exercise high agency and ownership—taking initiative, making decisions, and driving ideas to production
Company: Deepstreamtech
Location: London
Job Description:
Requirements
- If you love solving real-world problems, thrive in fast-paced environments, and take pride in shipping great products, this role is for you
- 5+ years building in Node.js, React, TypeScript, and Express
- Strong with PostgreSQL, Redis, and cloud environments (AWS: Fargate, Lambda, EC2, SQS)
- Familiar with CI/CD (CodePipeline, GitHub Actions, or similar)
- Experience integrating with LLMs in production
- Experience with microservices and scalable systems
- Product-driven—you care about the impact of what you ship, not just the code
- AI-first—you live in Cursor, Claude Code and are comfortable orchestrating coding agents
- Naturally curious and proactive; you don’t wait for instructions, you create momentum
- (Desirable) Next.js, Python, or event-driven architectures
- (Desirable) Infra-as-code (Terraform, CDK)
- (Desirable) Event-driven architecture experience
What the job involves
- As a fullstack engineer at Siena, you’ll own projects end-to-end, developing and optimizing features within our AI-powered customer support automation platform. You’ll work closely with product, shaping our roadmap while building reliable, high-performance systems
- Your code will power millions of monthly customer interactions across global brands, where reliability and speed directly impact business outcomes
- Design, build, and maintain scalable features across the full stack (frontend, backend, and infra)
- Collaborate with Product to break down scope into iterative, high-impact releases
- Integrate cutting‑edge LLM capabilities into real enterprise workflows
- Work on an AI‑first product, integrating cutting‑edge LLM capabilities into enterprise customer support workflows
- Solve complex engineering challenges, from optimizing API performance to refining microservices architecture
- Maintain and improve our cloud infrastructure (AWS) with a DevOps mindset
- Exercise high agency and ownership—taking initiative, making decisions, and driving ideas to production
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Posted: May 20th, 2026