Senior Full-Stack Developer (Python/React) with AI Experience to $9000

🟠 Details: We are looking for a Senior Full-Stack Developer (Python/React) with AI Experience to join our client’s team. You will work on improving existing solutions’ accuracy and developing AI agents that work with documents (XML, Excel, PDF), execute workflows, integrate with third-party services, and store data in vector databases.

🟠 About the project: Our client is an established Silicon Valley company in the insurance industry. They provide headless connectivity infrastructure for insurance carriers. By turning back-end business logic into reusable components, carriers reduce support costs, accelerate time to market, handle more distributor deals, and improve data quality and distributor satisfaction.

🟠 Qualifications:

• Strong programming skills in Python and knowledge of React;
• Experience with agent frameworks, preferably MCP (Model Context Protocol) or equivalent, enabling agents to interact with core application layers;
• Strong knowledge of prompt engineering techniques;
• Hands-on experience in building automated evaluations and preparing datasets;
• Familiarity with LLM monitoring and tracing tools (e.g., LangSmith).
• Strong general problem-solving skills and the ability to adapt to complex, flexible tasks (“flexible intelligence”);
• Good command of English (both written and spoken) for effective team collaboration;
• Experience working in small, cross-functional teams and collaborating with engineering leadership.

🟠 Would be a plus:

• Java for tweaking underlying APIs;
• European location, especially Portugal, for better overlap.

🟠 Responsibilities:

• Collaborate with the team to improve AI agent accuracy and run various experiments;
• Develop AI agents capable of ingesting documents (XML, Excel, PDF), executing workflows, integrating with third-party services, and writing to vector databases;
• Implement and maintain integrations between AI agents and core application layers;
• Work with the team to design, optimize, and test AI-driven workflows;
• Collaborate closely with the Engineering Manager and the AI features team (~6–7 people) to deliver solutions.

🟠 Interview steps:

• Screening with the recruiter (about 30 minutes).
• Technical Interview with COXIT Engineer (about 1 hour);
• 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.

🟠 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;
• Chill-out area: gaming zone with PlayStations, table tennis & table soccer;
• Beer, coffee, tea, cookies, etc;
• Conference rooms.

🟠 Some of our Values:

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