Senior AI​/Full Stack Engineer - Freelance

Who we are
Bitrock is a high-end consulting and system integration company,  strongly committed to offering cutting-edge and innovative solutions . Our tailored consulting services enable our clients to preserve the value of legacy investments while migrating to more efficient systems and infrastructure. We take a holistic approach to technology: we consider each system in its totality, as a set of interconnected elements that work together to meet business needs.
We thrive on overcoming challenges to help our clients reach their goals, by supporting them in the following areas:
Data, AI & ML Engineering;
Back-end Engineering, Platform Engineering, Front-end Engineering, Product Design & UX Engineering, Mobile App Development, Quality Assurance, Fin Ops, Governance The effectiveness our solutions also stems from  partnerships  with key technology vendors, like Hashi Corp, Confluent, Lightbend, Databricks, and Meterian.

Who we are looking for
We are building an elite, brand-new team dedicated entirely to cutting-edge AI projects, and we are looking for a  Senior Full-Stack Engineers  with a strong passion for the universe of Large Language Models and agentic workflows.
If you are a freelancer who thrives on autonomy, speed, and making a concrete impact on code, this is the challenge you’ve been waiting for.

What you will do in the team
You will join a lean, highly autonomous team focused on developing and implementing intelligent features. You will work on both backend robustness and frontend fluidity, orchestrating complex AI-driven workflows.

Your Stack & Required Skills
Must Have:
Backend:  Solid skills with Node.js and Type Script.
Frontend:  Excellent mastery of React and Type Script (we are looking for a  genuinely  full-stack profile, equally comfortable on both sides of the stack).
AI Orchestration:  Practical experience implementing LLM orchestration workflows using frameworks like  Lang Chain  or  Haystack  to power intelligent features.
Agentic Design:  Deep understanding of agentic design patterns, including state management, memory handling, and tool integration.
Prompt Engineering:  Practical understanding of prompt engineering and the trade-offs involved in building reliable, deterministic AI-powered features.

Soft Skills:

Comfortable working autonomously in a fast-moving, small team with limited hand-holding.
Nice to Have
Native mobile development experience (iOS and/or Android).
Background or knowledge of Java and/or Scala.
Evidence of personal projects or an active, demonstrable interest in the AI space

Engagement Details
Contract Type:  Freelance / Contractor
Duration:  12 months (1 year)

Location:

Full Remote

Recruitment process:
Our recruitment process has 3 stages:
First discovery short interview with our HR team
Technical interview with our Team Leaders
Final interview with our Client

How to apply:

You can apply via Linked In or send your cv to hr