Senior Full Stack Engineer — Backend Focus + AI Integration (Milestone) (вакансія неактивна)

We’re looking for candidates who thrives in fast-paced environments, loves building intelligent tools, and is eager to shape the future of cybersecurity services.
We also welcome people with management experience and technology leaders, as we operate a team of AI Agents.

About our Partner
Milestone is building the advisory infrastructure layer for cybersecurity, converting advisory work to software.
They are building an AI-native reasoning system that ingests security artifacts such as policies, audit reports, control matrices, logs, and interviews, converts them into structured observations, maps them to risk frameworks, and generates evidence-linked findings and recommendations.
The system combines LLMs, structured data pipelines, knowledge graphs, and agentic workflows to produce advisory outputs with deterministic traceability from source evidence to final recommendation.
Every engagement strengthens the system’s knowledge, allowing it to improve risk detection, prioritization, and benchmarking across organizations.
They are a small founding engineering team building a category-defining platform at the intersection of:

• AI reasoning systems
• cybersecurity and risk frameworks
• knowledge graphs and structured intelligence
• agentic workflows and autonomous analysis

If you enjoy building complex systems where AI, data, and real-world decision making intersect, you will find the challenges here interesting.

What You’ll Do

• Build and own end-to-end features — from Firebase backend to React UI
• Integrate LLM APIs (OpenAI, Claude, Gemini, etc.) to generate outcomes like cyber insights for enterprises, building audit roadmaps, and generating comparative benchmarks
• Design how agents work, set standards, define guardrails, and build mechanisms that allow them to produce great results as the team expands.
• Design & develop scalable, testable infrastructure for real-time engagement visibility and automation
• Collaborate directly with the CTO and our engineering team to ship fast and smart

Required Skills & Qualifications

• 5+ years of experience in Engineering
• 3+ years of strong backend experience with Python, Node.js, and Firebase (Firestore, Functions, Auth)
• 3+ years of work experience with TypeSccript
• Comfortable working on the front end with React + MUI
• 1+ years of work experience with building at least 1–2 projects with LLM APIs (OpenAI, Claude, Gemini, etc.)
• Fast learner, adaptable, and excited by working on ambiguous, high-impact problems
• Bonus: Familiarity with LangChain.js, vector databases (e.g., Pinecone), and AI agent design

Benefits of working with our Client:

• Work with a lean, high-performing team obsessed with solving real-world problems
• As a native AI company, we leverage agentic build process to iterate fast — you’ll see your work shape outcomes for global enterprises
• Collaborate with market-leading companies and top-tier CISOs
• High ownership, rapid personal growth, and the opportunity to join a company with strong traction

...and of course, your uSoftware benefits:

• Direct work with the customer, ownership culture.
• 20 working days of vacation and 15 sick leaves (all public holidays as well).
• Health insurance (after trial).
• Fitness membership (after trial).
• Ability to work from home or remotely;
• Corporate Events.

Apply now if you are ready for a great journey!