COXIT

🟠 Details: we are looking for a Senior Ruby on Rails Developer to join our team. You will work on developing and maintaining a leading fantasy sports platform, building user-friendly features, optimizing large-scale codebases, and collaborating with US-based clients. This role requires strong expertise in Ruby on Rails, excellent communication skills in English, and the ability to deliver high-quality, scalable solutions.

🟠 About the project: our client is a leading daily fantasy sports platform that allows users to engage with their favorite sports by predicting player performances simply and in fun. Focusing on innovation and user experience, they provide a unique alternative to traditional fantasy leagues, enabling fans to enjoy sports in a more interactive format.
 
🟠 Qualifications:
 

• 6+ years of experience with Ruby on Rails;
• 8+ years of overall professional software development experience;
• Strong English communication skills;
• Demonstrated ability to manage and contribute to large, complex codebases;
• Prior experience collaborating with US-based clients;
• Must be based in the EU.

🟠 Responsibilities:
 

• Develop and maintain core features of the fantasy sports platform using Ruby on Rails;
• Design and implement user-friendly, interactive features to enhance the platform;
• Optimize and manage large, complex codebases for performance and scalability;
• Collaborate with US-based clients and cross-functional teams to meet project goals;
• Conduct code reviews, write tests, and ensure high-quality software delivery;
• Troubleshoot and resolve technical issues efficiently;
• Stay updated on Ruby on Rails and industry trends.

 
🟠 Interview steps:
 

• Screening with the recruiter (about 30 minutes).
• Call with the management responsible (about 15 minutes).
• Meet with the CTO of the partner company (about 30 minutes).
• Call with the client (about 1 hour).

 
🟠 By joining us, you will get:
 

• Accounting coverage and lawyer support;
• Paid Vacations;
• Paid 4 paid public holidays (New Year, Independence Day, Day of the Defender of Ukraine, and Christmas);
• Flexible working hours and the possibility to work remotely;
• Best-class working equipment (laptop and accessories);
• Good conditions for skills development: the possibility of upgrading your English for business needs due to working time and 50% coverage for studying English; the offer of internal workshops; and wellbeing sessions as one-to-one meetings.

  
🟠 Some of our Values:
 

• No overtime and pressure;
• Regular rest, burnout control;
• Clean relationships within the company and with the client;
• Responsibility for the own development, ideas, and interests communication, as well for the problems that stand in the way of this development;
• Openness to the new, readiness for changes.

🟠 Details: we are looking for an experienced Software Engineer specializing in Large Language Models (LLMs) integrations, such as GPT-4, Claude-3.5 sonet, and similar. You will be involved in developing and testing Python or TypeScript applications, integrating LLMs, and implementing complex RAG pipelines. 

🟠 Qualifications:

• At least 3 years of experience with Python or TypeScript as a prime programming language;
• In-depth knowledge and experience with different LLMs, including GPT-3/4 and Claude;
• Experience with Retrieval-Augmented Generation (RAG) and related technologies;
• Proficiency in working with vector databases such as Pinecone, Weaviate, or FAISS;
• Experience with OpenAI API and SDK;
• Knowledge of prompt engineering techniques and prompt optimization approaches;
• Hands-on experience with tools for data set collection, evaluation, and validation like LangSmith, DeepEval/ConfidentAI, etc;
• Experience with setup of basic CI/CD, for example with GitHub Actions;
• Experience with Linux CLI tools;
• Experience with at least one of SQL databases and ORMs like Postgres, MySQL, etc.

 🟠 Would be a plus:

• Knowledge of Grafana, Prometheus, and Loki;
• Preferable experience in NLP (Natural Language Processing);
• Basic knowledge of AWS/GCP or Cloudflare for base deployment purposes.

🟠 Responsibilities:

• Developing LLM integrations from scratch or optimizing existing solutions using embeddings, vector storage, vector search, prompt engineering, and Retrieval-Augmented Generation (RAG);
• Implementing and managing vector databases for efficient storage and retrieval of embeddings;
• Working with the OpenAI API and exploring the integration of other AI technologies;
• Ongoing R&D in AI technologies;
• Collaborating with the development team and client stakeholders to achieve set business goals.

🟠 Interview steps:

• Screening with the recruiter (about 30 minutes).
• Live coding session with Python or TypeScript Developer (about 1 hour).
• Technical interview with CEO (about 1 hour).
• Optional take-home task.

🟠 By joining us, you will get:

• Accounting coverage and lawyer support;
• Paid Vacations;
• Paid 4 paid public holidays (New Year, Independence Day, Day of the Defender of Ukraine, and Christmas);
• Flexible working hours and the possibility to work remotely;
• Best-class working equipment (laptop and accessories);
• Good conditions for skills development: the possibility of upgrading your English for business needs due to working time and 50% coverage for studying English; the offer of internal workshops; and wellbeing sessions as one-to-one meetings.

🟠 Our office in Lviv:

• FuturaHUB, located in Lviv (Kulparkivska 200a);
• An inspiring, modern workplace with a great atmosphere and development culture;
• “Happy Hours” parties;
• Yoga and sports training in FuturaHUB;
• Chillout area: gaming zone with the PlayStations, table tennis & table soccer;
• Beer, coffee, tea, cookies, etc;
• Conference rooms.

🟠 Some of our Values:

• No overtime and pressure;
• Regular rest, burnout control;
• Clean relationships within the company and with the client;
• Responsibility for the own development, ideas, and interests communication, as well for the problems that stand in the way of this development;
• Openness to the new, readiness for changes.