Front End Engineer - H/F

About Alta Ares

Alta Ares is a deeptech startup founded in 2024, building real-time AI for defense operations — ISR, C-UAS, and autonomous systems. Our clients are NATO-aligned militaries and defence institutions, with regular deployments during live exercises and operational demonstrations. We raised €2M seed in May 2025, 50M in June 2026, and are expanding fast.

Our product suite includes:

Real-time AI ISR module deployable on drones and tactical platforms

Counter-UAS solution enabling autonomous drone takeover in GNSS-denied environments

Full-stack MLOps platform for training & deploying military-grade AI models

Data fusion and trajectory prediction

Role & Mission

As a Front-End Engineer, you will own the development of high-quality interfaces across our software platforms (cloud, on-premise, and edge deployments) with a strong product-vision.

While your core strength is front-end engineering and design systems, you are comfortable contributing beyond the UI layer working with APIs, backend services, and system integrations when required. We are a small and agile company, requiring flexibility.

This role is ideal for engineers coming from SaaS or scale-up environments who combine frontend craftsmanship with product ownership and versatility.

Your Responsibilities

Frontend & Design Systems

Consolidate existing software products and lead cross-products code refactors when needed

Build scalable, maintainable web applications using modern frameworks

Develop and maintain a coherent design system and reusable component library, in collaboration with our UI/UX designer

Ensure high standards of UX, consistency, and visual quality across products

System Integration & Environments

Build applications that run across cloud, on-premise, and edge environments

Handle diverse data patterns (real-time, batch, intermittent connectivity)

Ensure resilience and usability in constrained or operational contexts

Performance & Reliability

Optimize frontend performance and application responsiveness

Ensure reliability in mission-critical environments

Debug production issues across the stack when necessary

Full-Stack Contribution

Integrate with backend APIs and data services

Contribute to backend or middleware when needed (API design, data handling, debugging)

Work across the stack to unblock progress in a small, fast-moving team

Testing & Quality

Write unit, integration, and end-to-end tests

Maintain high standards of code quality and documentation

Participate in code reviews and continuous improvement

Requirements

Candidate Profile

3–5 years of experience in software engineering, with strong frontend specialization

Proven experience in SaaS or scale-up environments

Strong expertise in modern frontend frameworks (React preferred)

Solid understanding of design systems and UI architecture

Comfortable working across the stack (APIs, backend basics, system integration)

Product-oriented mindset with a bias for action

Nice to Have

Experience with data-heavy or complex interfaces

Familiarity with applications deployed outside standard cloud environments (on-prem, edge)

Experience with TypeScript across the stack

Exposure to DevOps or deployment pipelines

Interest in deeptech, defense, or high-reliability systems

Skills & Values

Frontend Craftsmanship

Strong attention to detail and UI quality

Ability to build scalable, reusable components

Versatility

Comfortable stepping outside strict role boundaries

Able to contribute across the stack when needed

Product Ownership

Focused on delivering user value, not just features

Pragmatic and impact-driven

Execution & Autonomy

Thrives in small, fast-moving teams

Takes ownership and delivers end-to-end