QAtronic

Experience Requirements:

- At least 3 years of hands-on experience developing smart contracts in Solidity. 

- Deep understanding of Ethereum, the EVM, and gas optimization strategies. 

- Proficient with Web3.js, Ethers.js, or Hardhat for deploying and interacting with contracts. 

- Knowledge of key security practices and vulnerabilities (e.g., Reentrancy, Front-running, Overflow/Underflow). 

- Familiar with Truffle, Hardhat, or Foundry for deployment and testing workflows. 

- Skilled in writing robust unit tests using testing frameworks like Chai and Mocha. 

- Solid grasp of ERC token standards (ERC-20, ERC-721, ERC-1155). 

- Understanding of DeFi ecosystems, staking, and token economics. 

- Experience connecting smart contracts to backend systems using Node.js. 

- Excellent analytical thinking and the ability to work independently and proactively.

Responsibilities: 

Design, develop, and deploy secure, gas-efficient smart contracts using Solidity, implementing upgradeable patterns when needed. Write and maintain tests, perform code reviews, and conduct security audits. Collaborate with frontend and backend teams to integrate contracts into Web3 applications, using tools like Web3.js, Ethers.js, and Node.js. Troubleshoot on-chain transactions and stay up to date with Ethereum and blockchain advancements.

We offer:

• Attractive financial package

• Challenging projects

• Professional & career growth

• Great atmosphere in a friendly small team

Location: Remote 

Project: German Newspaper Application Development 

Key Responsibilities: 

- Design, develop, and maintain high-quality mobile applications using Flutter. 

- Collaborate closely with the product team to gather requirements and define application features. 

- Implement responsive and user-friendly interfaces that align with our brand standards. 

- Write clean, maintainable, and efficient code while following best practices. 

- Troubleshoot and debug issues in existing mobile applications. 

- Participate in code reviews and contribute to team knowledge sharing. 

- Stay updated with the latest industry trends and technologies to ensure our mobile solutions remain competitive. 

Qualifications: 

- Proven experience as a Mobile Software Developer with a minimum of 3 years in Flutter development. 

- Strong understanding of mobile application architecture and design principles. 

- Proficiency in Dart and knowledge of RESTful APIs and third-party libraries/integrations. 

- Experience with version control systems (e.g., Git) and agile development methodologies. 

- Ability to work independently in a remote setting and effectively communicate with team members. 

- Fluent in German (spoken and written) to facilitate communication with the project stakeholders. 

Preferred Skills: 

- Experience with other mobile development frameworks (e.g., React Native) is a plus. 

- Knowledge of app store submission processes and mobile app analytics. 

- Familiarity with backend technologies (such as Firebase or Node.js) would be advantageous. 

We offer:

• Attractive financial package

• Challenging projects

• Professional & career growth

• Great atmosphere in a friendly small team

Requirements: 

• 2+ years with Mendix 
• 3+ years with JavaScript, Java, or . NET
• Familiar in the field of platform- and app-integration, and customer landscapes

• Excellent communication skills in English

   

We offer:

• Attractive financial package

• Challenging projects

• Professional & career growth

• Great atmosphere in a friendly small team

Key Responsibilities: 

- Design, implement, optimize, and debug wireless communication features in the Linux kernel and related userland stack. 

- Collaborate with hardware and software teams to design and implement product features based on requirements. 

- Contribute to upstream open-source projects and the Linux Kernel.

Required Skills and Experience: 

- 5+ years of professional experience with Linux kernel development. 

- Experience working with Arm architectures and platforms built using Arm technology. 

- Proven experience developing and debugging Bluetooth Classic and/or Bluetooth Low Energy software. 

- Proven experience developing and debugging WiFi Linux kernel drivers. 

- Proficiency with kernel debugging tools (e.g., ftrace, perf, kgdb) and performance profiling. 

- Strong problem-solving and analytical skills with attention to detail. 

- Hands-on experience with Yocto/OpenEmbedded. 

- Proficiency in C programming. 

- Proficiency with Git. 

- Excellent organizational skills. 

- Strong English communication skills. 

- Ability to work productively in a globally distributed team, with self-discipline and motivation to deliver on schedule. 

Desired Skills and Experience: 

- Familiarity with ARM-based embedded systems. 

- Specific experience with NXP i.MX-based embedded systems. 

- Experience developing software for a wide range of Linux kernel subsystems. 

- Experience with automated testing frameworks for kernel validation (e.g., LTP, kselftest). 

- Contributions to the Linux kernel or other open-source projects.

IMPORTANT COMMENT:

The candidate should have both: WiFi and BT experience. He/she will need to dig into the i.MX8 WiFi/BT drivers to fix issues and must be able to debug connection problems. Apparently, there is an ongoing issue, and they need help resolving it. Familiarity with BT 5.1 is more important than BLE. Still, the candidate must be an excellent kernel engineer with broad kernel experience.

We offer:

• Attractive financial package

• Challenging projects

• Professional & career growth

• Great atmosphere in a friendly small team

Project Summary: 

We are seeking a Network Security Consultant for an insurance client in Krakow, Poland. The ideal candidate should be based in Poland—preferably in Krakow—to facilitate effective local collaboration and oversight of security operations. 

Requirements: 

- Proven experience in operational security management and firewall assurance. 

- Strong understanding of security platforms, regulatory compliance, and best practices. 

- Ability to audit, review, and implement firewall policies effectively. 

- Excellent communication skills for stakeholder engagement and reporting. 

Tasks: 

- Operational Security Management: Monitor and manage security platforms (e.g., Proxy, IDS/IPS, Web Filtering, Firewall Assurance) and continuously optimize security protocols. 

- Policy Enforcement: Review and enforce security policies to ensure compliance with company standards and regulatory requirements. - Firewall Assurance & Process Management: Audit security processes, validate global process flows, conduct approval reviews, and implement policy updates for optimal firewall security. 

- Cross-Functional Collaboration: Work closely with the Network Security team and other departments to ensure a cohesive security infrastructure, and communicate security incidents with strategic recommendations for improvement. 

- Reporting & Documentation: Generate detailed security reports, including performance metrics and compliance status, and provide actionable insights to enhance security processes

We offer:

• Attractive financial package

• Challenging projects

• Professional & career growth

• Great atmosphere in a friendly small team

Requirements

• 3+ years of experience in Servicenow
• High-quality organizational and leadership skills
• Technical mindset with great attention to detail
• Knowledge of architecture/design methods and patterns, data and API specifications, quality assurance, and testing methods 
• Strong problem-solving skills and ability to apply logical and analytical thinking to complex problems
• Excellent communication and collaboration skills, with the ability to work autonomously and in a team environment
• English (C1)

We offer:

• Attractive financial package

• Challenging projects

• Professional & career growth

• Great atmosphere in a friendly small team

Requirements:

- 3+ years of experience in Python or Node and React;

- Able to propose creative solutions to complex problems;

- Good communication and self-learning skills;

- Level of English: Upper-Intermediate, both writing and speaking;

- Candidate Location: USA

We offer:

• Attractive financial package

• Challenging projects

• Professional & career growth

• Great atmosphere in a friendly small team

Requirements: 

- Support client with upgrade ECC to S/4HANA (Eh4).
- Hands-on exp in SAP GTS Eh4, particularly in customs management, data migration, and system customization. 

- Fluent English

We offer:

• Attractive financial package

• Challenging projects

• Professional & career growth

• Great atmosphere in a friendly small team