Hire Six

The project

Our client is a fast-growing fintech software company operating a proprietary trading

platform. The platform provides:

Trading evaluations for aspiring traders;

Funded accounts to back retail traders;

Advanced analytics and execution tools for real-time trading.

The system is already in production, now the team is adding major new features and squashing bugs to deliver the next generation of trading capabilities.

What you’ll do

Design & implement new backend features using Spring Boot 2.x;

Develop & maintain Angular 13+ front-end modules;

Build real-time functionality with WebSockets and message brokers;

Troubleshoot production issues, ensuring high availability and quick resolutions;

Optimize PostgreSQL schemas, queries and indices for performance and scalability;

Collaborate with product managers, QA engineers, and DevOps to deliver end-to-end solutions;

Write clean, testable, documented code, and participate in code reviews.

Must-have qualifications

3+ years professional experience with Java (Spring Boot 2.x);

3+ years with Angular 13+ (or comparable modern Angular versions);

Deep proficiency in PostgreSQL at production scale;

Proven experience building real-time systems (WebSockets, event streams, etc.);

Track record of maintaining high availability and responsiveness under pressure;

Able to own features from design through deployment.

Nice to have

Prior work on proprietary trading platforms or at prop trading firms;

Integration experience with broker APIs (e.g. cTrader, MetaTrader, DXTrade);

Familiarity with containerization (Docker/Kubernetes) and cloud deployments.

What we offer

Full-time remote role with flexible hours;

B2B contract;

20 days paid vacation + 10 days sick leave per year;

A small, high-performance, collaborative team where your impact is immediate.

Job Description

Snips mission is to reinvent how people watch series, creating a "Netflix meets TikTok" experience. We use AI to transform existing shows into short, addictive, mobile-first micro-episodes and present them on our mobile platform.

Snips founders are serial two entrepreneurs. One has founded a mobile game company, whose games are played by tens of millions. The other one founded and sold an AI company to Unity that worked with top global tech and fashion brands.

We raised a series funding round and have contracts with some of the biggest names in the worldwide media industry.

We're on the hunt for a super motivated and experienced Backend Engineer who loves solving problems methodically. A versatile Backend Engineer who can own the whole backend stack. Someone who excels at creating backends for millions of users and is equally adept at building and scaling AI/ML backend pipelines. You should be a great

communicator, take ownership of your work, and have a real drive to get things done. If you're passionate about software engineering and system architecture, and understand the ins and outs of building complex backend systems simply and efficiently, you'll fit right in. We value folks who write resilient code and build reliable infrastructure, but who also get the business side of things and can deliver on tight schedules in a fast-paced environment. We prioritize continuous learning, teamwork, and feedback from our engineers.

What You'll Be Doing:

• Teaming up with the founding crew to help shape our product direction.
• Designing and building highly available backend microservices and APIs.
• Designing and building scalable video and data pipelines.
• Designing and building automations for infrastructure, deployments, and monitoring.
• Brainstorming ideas for features, improving system architecture, and troubleshooting.
• Keeping our quality standards high, making sure code is readable, testable, modular,
• and maintainable.
• Taking features from initial ideas all the way to launch, and working closely with
• Product to make those concepts a reality.
• Operating with tons of autonomy, freedom, and influence in designing solutions and making technical decisions – this is a critical role for our company's growth!

What You'll Need:

• 5+ years of professional experience in backend or full-stack development.
• 3+ years experience building node.js backend systems
• A deep understanding of Computer Science fundamentals.
• Experience building scalable backend systems and microservices
• Experience with production systems serving millions of users per day
• Experience building production services from start to finish, including architecture
• design, development, testing, deployment, and monitoring.
• Experience with both relational (RDBMS) and NoSQL databases and their tradeoffs.
• Experience with message queue systems (SQS, Kinesis, RabbitMQ, Kafka…).
• Excellent communication and collaboration skills.
• Highly independent, accountable, and a team player, able to own tasks from planning to production.
• A "can-do" attitude and a strong sense of ownership.

Nice-to-Haves:

• Experience building data and ML pipeline systems
• Experience with Javascript and React.
• Experience with python
• Experience with Containers and Kubernetes.
• Familiarity with LLM, prompt engineering, agents, and RAG.

We’re building the future of industrial automation. Our Physical AI platform enables

seamless programming of robots, controllers, and sensors, replacing hundreds of lines of code

with a single command. As a core engineer, you’ll have the opportunity to shape both the product

and the culture while working on challenges at the intersection of AI, robotics, and scalable

cloud software.

Why Join Us

• Be part of the founding team and shape the core product

• Work with cutting-edge AI and robotics technologies

• See your work power real factories worldwide

• Fast-moving, collaborative culture with huge growth opportunities

What You'll Do

• Design and develop core infrastructure for a complex, real-time industrial automation

platform

• Take end-to-end ownership of features from conception to deployment

• Have direct impact on product direction and technical decisions as an early team member

• Build robust, scalable solutions that will power thousands of production lines

Required Experience

• 5 + years of hands-on software engineering experience

• Full-stack proficiency with JavaScript/TypeScript and Python

• Experience in fast-paced, dynamic environments preferred

• Daily use of AI tools (ChatGPT, Claude, Copilot) to accelerate development

Technical Skills We Value

Backend :

• FastAPI, WebSockets, Python async programming

• PostgreSQL, Redis, and workflow orchestration systems

• Real-time event systems (SSE) and message queuing

Frontend:

• React/TypeScript with real-time data streaming

• Experience with real-time visualization and state managementInfrastructure :

• Docker containerization and microservices architecture

• Experience with scalable, distributed systems

Mission Summary

Ensure the reliability, security, and quality of Modelyo's Confidential Cloud through automated testing pipelines. Develop and maintain scalable QA automation frameworks covering APIs, UI components, and cloud infrastructure services built on OpenStack.

Core Responsibilities

Design, develop, and maintain automated test frameworks for backend APls, OpenStack integrations, and web Ul (Horizon).

Implement end-to-end testing pipelines for deployment, configuration, and runtime validation of confidential workloads.

Integrate QA automation into CI/CD pipelines (GitHub Actions, GitLab Cl, Jenkins).

Define and track quality metrics, perform regression and performance testing.

Collaborate closely with development, DevOps, and product teams to define acceptance criteria and ensure test coverage across services.

Contribute to security, compliance, and reliability testing aligned with Modelyo's zero-trust principles.

Qualifications

7+ years in software QA with 3+ years in automation development.

Proficiency in Python and experience with frameworks like Pytest, Selenium, or Playwright.

Solid understanding of API testing, REST/gRPC, and Ul automation.

Experience testing cloud platforms, ideally OpenStack, GCP, or Azure.

Strong understanding of CI/CD, test data management, and defect lifecycle.

Knowledge of security and compliance testing is a plus.

Excellent analytical and communication skills; hands-on mindset.

Preferred

Experience with OpenStack Horizon or cloud orchestration testing

Familiarity with infrastructure-as-code tools (Terraform, Ansible) and containerized tes environments.

Exposure to confidential computing or secure workload validation.

Tech Stack

Python, Pytest, Selenium / Playwright, REST/gRPC,

OpenStack (Keystone, Nova, Neutron, Horizon), Docker, CI/CD (GitHub Actions, GitLab CI, Jenkins),

📍 Location: Poland, Warsaw (on-site only)

💼 Full-time, Office-based
High salary rate

We are looking for a talented Golang Developer to join a team building a next-generation confidential cloud platform. This is an opportunity to work on deeply technical challenges at the intersection of cloud infrastructure, OpenStack, and confidential computing — ensuring workloads stay encrypted in transit, at rest, and even in use.

If you enjoy engineering secure, scalable, low-level systems and want to contribute to a zero-trust cloud platform used in highly regulated environments, this role is for you.

🌍 About the Project

You’ll help build a full-stack confidential cloud solution powered by OpenStack and modern confidential-computing technologies (Intel TDX/SGX, AMD SEV). The platform is designed to provide tamper-proof data guarantees, strong attestation, and seamless compliance for enterprise-grade workloads.

Your work will directly influence critical architecture decisions, backend services, and automation systems powering this platform.

🎯 What You Will Do

Develop and operate Go microservices, system daemons, and REST/gRPC APIs.

Automate deployment, monitoring, scaling, and upgrading of the confidential cloud environment.

Integrate deeply with OpenStack services (Keystone, Nova, Neutron, Cinder, Glance).

Build observability & compliance layers:

metrics, logging, tracing, attestation evidence, audit trails.

Ensure all components follow security-by-design and zero-trust principles.

Participate in system design, architecture reviews, and code reviews.

Write clean, secure, well-tested code (unit, integration, security tests).

✔️ Required Experience

Strong skills in Golang, including concurrency, performance optimization, and API/service design.

Practical experience with OpenStack components & APIs (Keystone, Nova, Neutron, Cinder, Glance).

Solid understanding of Linux systems, networking, routing, VPC/VLANs, security groups.

Experience with Docker, Kubernetes, Helm.

CI/CD knowledge: GitHub Actions, GitLab CI, Jenkins.

Strong analytical thinking, documentation discipline, and troubleshooting skills.

➕ Would Be a Plus

Experience with OpenStack Horizon or Skyline dashboards.

Knowledge of confidential computing, TEEs, attestation flows, TPM/vTPM.

Experience with Python (OpenStack ecosystem) or Rust.

Familiarity with observability tools and standards (Prometheus, Grafana, ELK, OpenTelemetry).