MindfulMatch

About company:

Snowball is a San Francisco- and Kyiv-based FinTech startup building tools that make
cryptocurrency simple and accessible. Our flagship products are the Snowball App (a
crypto wallet for buying and selling tokens) and the Modular Name Service (MNS), a
cross-chain digital identity system that lets users attach a unique name to their wallet
address across different blockchains.
About the Role
As QA at Snowball, you’ll ensure our products meet functional requirements and
provide a smooth user experience. You will design and execute test plans, report and
track bugs in Jira, and proactively contribute to improving our testing processes. This
role focuses on manual testing across mobile and desktop apps.
What You’ll Be Doing
● Design and execute test plans for new features and releases.
● Verify and reproduce reported bugs and regressions.
● Document bugs clearly in Jira and track their status.
● Collaborate with the team to organize and execute testing activities.
● Perform manual testing on mobile (Android, iOS) and desktop (Windows, Mac).
● Monitor support channels (email, Slack, Telegram), reproduce user-reported
issues, and report outcomes.

What We Look For (Required)

● Demonstrated experience reporting and tracking bugs.
● Experience with Jira.
● Attention to detail and structured problem-solving.
● Strong communication skills in English.

● Experience working in remote teams.

Nice to Have (Preferred)
● Experience testing blockchain apps, crypto wallets, or dApps.
● Familiarity with collaboration tools such as Slack.
● Basic understanding of Web3 concepts.

What You’ll Get
● Join the Web3 Revolution: Contribute to products at the frontier of blockchain.
● Impactful Work: Your testing will directly shape user experience.
● Remote Flexibility: Work from anywhere, as long as you communicate well and
attend team meetings.

We are seeking an experienced Senior Algo Quant Developer to join our innovative and fast-paced team, working to enhance our Algorithmic Trading Platform.

In this role, you will be instrumental in the architecture, development, and optimization of high-performance algorithmic trading strategies and systems. You will collaborate closely with quantitative researchers and engineers, implementing advanced algorithmic solutions to execute trades across global financial markets with minimal latency and maximal efficiency.

The ideal candidate has a solid background in algorithmic trading, quantitative finance, and high-performance computing, combined with expert-level skills in Python or Golang and distributed systems.

Project Stack

- Python, Java, Go, Rust
- Pandas, NumPy, FastAPI
- Kafka, gRPC
- PostgreSQL, Redis, ClickHouse
- Docker, Kubernetes, Ansible, Vault
- Prometheus, Grafana, ELK
- AWS, Linux

Requirements

- 5+ years of experience developing algorithmic trading systems or quantitative trading infrastructure.
- Expert proficiency in Python or Golang and significant experience developing low-latency systems.
- Solid understanding of algorithmic trading concepts including market microstructure, order book dynamics, execution strategies, and quantitative modelling.
- Proven expertise in developing, optimizing, and maintaining algorithmic trading engines and infrastructure.
- Strong experience with SQL and relational databases (Postgres, MySQL, etc.).
- Deep understanding of distributed systems, concurrency, and performance optimization.
- Ability to troubleshoot complex performance issues and identify root causes effectively.
- Strong knowledge of software engineering best practices, including rigorous testing and clean, maintainable code.
- Experience working in a startup environment.

Good to have

- Proficiency in additional programming languages: Java, Go, Rust, Scala.
- Hands-on experience with messaging and streaming frameworks (Kafka, RabbitMQ).
- Practical experience with column-oriented databases: ClickHouse, Vertica, Snowflake.
- Familiarity with NoSQL and distributed coordination systems: Redis, Zookeeper, Consul.
- Experience in cloud infrastructure and DevOps practices (AWS, Docker, Kubernetes).
- Previous mentoring or leadership experience.

Responsibilities

- Architect, develop, and enhance scalable, highly performant algorithmic trading systems and infrastructure.
- Optimize trading algorithms for minimal latency and maximal throughput.
- Collaborate with quantitative researchers to implement, test, and deploy advanced algorithmic strategies.
- Continuously improve system stability, scalability, and availability.
- Engage in R&D, exploring cutting-edge technologies to enhance trading capabilities.
- Maintain rigorous standards for coding, testing, and deployment processes.
- Mentor and support junior team members, fostering a culture of technical excellence and continuous learning.
- Proactively identify and implement improvements across the trading platform.

Terms

- Minimal bureaucracy, direct communication, and rapid decision-making processes.
- Opportunity to lead technological innovation in algorithmic trading with substantial impact on investment strategies.
- Collaborative, innovative, and dynamic working environment.

Job Title:

 Senior Software Developer (.NET, CRM, AWS)

Location: Hybrid from Sofia, Bulgaria (accepting people who want to relocate) 

Department: Software Engineering

Reports to: Engineering Manager / CTO

Job Type: Full-time

Seniority Level: Senior

Job description :

We are looking for a highly skilled and experienced Senior Software Developer with deep expertise in .NET development, CRM platforms (preferably Microsoft Dynamics 365 or Salesforce), and Amazon Web Services (AWS). You will be responsible for designing, developing, and maintaining robust software solutions that integrate these platforms, ensuring scalability, performance, and reliability.
 

Key Responsibilities:

.NET Development

• Design and develop enterprise-level applications using C# and .NET (Core / Framework).
• Implement RESTful APIs, microservices, and backend services.
• Optimize existing code for performance, scalability, and maintainability.

• Perform code reviews and mentor junior developers.

   

CRM Development

• Customize and extend CRM platforms (e.g., Dynamics 365, Salesforce) based on business requirements.
• Integrate CRM systems with internal/external tools using APIs, middleware, or ETL tools.
• Develop plugins, workflows, and UI customizations.
• Work with business analysts to translate customer requirements into technical specifications.

Cloud & AWS

• Architect and deploy scalable solutions on AWS.
• Use AWS services such as Lambda, S3, RDS, EC2, CloudFormation, API Gateway, etc.
• Implement CI/CD pipelines using CodePipeline, CodeBuild, or third-party tools (e.g., GitHub Actions).
• Monitor and optimize cloud infrastructure for security and cost-efficiency.
   

Required Qualifications:

  5+ years of professional experience in software development with a strong focus on .NET.

• Proven experience with at least one CRM platform (Dynamics 365, Salesforce, or equivalent).
• 2+ years of hands-on AWS experience, including deployments and architecture.
• Strong understanding of software engineering best practices: OOP, SOLID, design patterns, etc.
• Proficiency in SQL and experience with relational databases (SQL Server, PostgreSQL, etc.).
• Experience with Agile/Scrum methodologies and DevOps practices.
   

Preferred Skills:

• Certifications in AWS, .NET, or CRM platforms.
• Knowledge of containerization (Docker, Kubernetes).
• Experience with front-end frameworks (e.g., Angular, React) is a plus.
• Familiarity with Identity Management and SSO solutions (OAuth, Azure AD, etc.).

Soft Skills:

• Excellent problem-solving and analytical skills.
• Strong communication and interpersonal skills.
• Ability to lead technical discussions and make architectural decisions.
• Capable of working independently and collaboratively in a fast-paced environment.

What We Offer:

• Competitive salary and benefits.
• Hybrid work from Sofia.
• Career development opportunities.
• Access to training and certifications.
• A collaborative and innovative team environment.

🎯 Job Title: AI-Powered Social Media & Automation Specialist (n8n Expert)
 💼 Type: Full-time | Remote
 📍 Location: Global (Timezone overlap with UTC+3 to UTC+8 preferred)

🚀 About the Role:

We’re looking for a highly motivated AI & Automation native who can build, manage, and optimize smart social media workflows using tools like n8n, Make (Integromat), Zapier, or custom APIs. Your role will power our content engine, streamline ops, and test AI agents across social, marketing, and growth functions.

You should be comfortable building complex workflows quickly, experimenting with emerging AI tools, and turning manual work into automated wins.
 

🔧 What You'll Be Doing:

• Create and manage custom social media automation agents (e.g., content generation, auto-posting, feedback loops).
• Build complex n8n/Make modules for community, CRM, analytics, video & image editing workflows.
• Integrate APIs (Twitter, Discord, Notion, Slack, YouTube, etc.) into automation pipelines.
• Collaborate with the growth and content teams to deploy AI agents that generate marketing assets (tweets, visuals, short videos).
• Test new AI products and agents, give fast feedback, and deploy them into real-world automations.
• Maintain and iterate on systems—scale what works, kill what doesn’t.
• Manage occasional manual steps where smart automation can't yet replace human input.
   

💡 You’re a Perfect Fit If You:

• Are fluent in n8n, Make (Integromat), or Zapier (mandatory).
• Have hands-on experience with AI tools: ChatGPT, Claude, Heygen, RunwayML, Midjourney, etc.
• Know how to use tools like Notion, Airtable, Canva, or Figma as part of a content system.
• Have a builder mindset—MVP first, perfect later.
• Thrive in a fast-moving startup & Web3 environment.
• Love automating workflows that save time, drive content, or delight the community.
   

🧠 Bonus Skills:

• Familiarity with Web3, crypto naming services, wallets, and basic blockchain concepts.
• Experience building agent workflows via LangChain, AutoGen, or custom AI stacks.
• Video editing with AI tools like Runway or Descript.
• Prompt engineering for LLMs and diffusion models.

• Python/JavaScript skills for extending agent or n8n logic (not mandatory, but a plus).

   

📈 What’s In It for You:

• Be part of a fast-growing Web3 identity product changing how people navigate Web3.
• Build creative systems that run 24/7 and scale infinitely.
• Work with a lean, AI-native team who values speed, clarity, and autonomy.
• Get early access to bleeding-edge tools and drive innovation with your automations.

About company:

Snowball is a San Francisco- and Kyiv-based FinTech startup building tools that make
cryptocurrency simple and accessible. Our flagship products are the Snowball App (a
crypto wallet for buying and selling tokens) and the Modular Name Service (MNS), a
cross-chain digital identity system that lets users attach a unique name to their wallet
address across different blockchains.
About the Role
As QA at Snowball, you’ll ensure our products meet functional requirements and
provide a smooth user experience. You will design and execute test plans, report and
track bugs in Jira, and proactively contribute to improving our testing processes. This
role focuses on manual testing across mobile and desktop apps.
What You’ll Be Doing
● Design and execute test plans for new features and releases.
● Verify and reproduce reported bugs and regressions.
● Document bugs clearly in Jira and track their status.
● Collaborate with the team to organize and execute testing activities.
● Perform manual testing on mobile (Android, iOS) and desktop (Windows, Mac).
● Monitor support channels (email, Slack, Telegram), reproduce user-reported
issues, and report outcomes.

What We Look For (Required)

● Demonstrated experience reporting and tracking bugs.
● Experience with Jira.
● Attention to detail and structured problem-solving.
● Strong communication skills in English.

● Experience working in remote teams.

Nice to Have (Preferred)
● Experience testing blockchain apps, crypto wallets, or dApps.
● Familiarity with collaboration tools such as Slack.
● Basic understanding of Web3 concepts.

What You’ll Get
● Join the Web3 Revolution: Contribute to products at the frontier of blockchain.
● Impactful Work: Your testing will directly shape user experience.
● Remote Flexibility: Work from anywhere, as long as you communicate well and
attend team meetings.