Intern Integration Consultant

Summary

MasterBorn is a Polish-American software house that builds custom digital products for clients in fintech, sportstech, and medtech. The Integration Consultant Intern will support client integrations by working with APIs, data, SQL, technical documentation, issue investigation, Git, and direct client communication.

Responsibilities

• Support integrations between our clients' systems and the products we build - checking API requests and responses, and verifying data with SQL queries
• Read and work with technical documentation, ours and our partners'
• Investigate reported issues: reproduce them, narrow down what's actually broken, and summarize findings clearly for the team
• Communicate directly with clients, in English, to clarify requirements and share updates
• Use Git for day-to-day work: commits, branches, pull requests
• Take ownership of assigned tasks, flag blockers early, and act on feedback

Skills

• • Basics of programming in any language - TypeScript is a plus, but not a requirement
• • Understanding of APIs and HTTP - what a request and response are, GET/POST methods, status codes, JSON format
• • Basics of SQL - SELECT, WHERE, JOIN, reading a database schema
• • Git at a working level: commit, branch, pull request
• • Ability to read technical documentation in English with full understanding
• • Proactivity - asks questions, raises blockers, doesn't disappear with a problem for three days
• • Attention to detail - spots inconsistencies, checks rather than guesses
• • Structured problem-solving - can clearly state what isn't working and what's already been checked
• • Written communication - summarizes findings clearly, writes understandable messages
• • Openness to feedback - takes it without defensiveness, applies it
• • Independence in assigned tasks
• • English min. C1 - speaking and writing
• • Polish min. C1 - speaking and writing
• • Hands-on experience with TypeScript or another backend language
• • Familiarity with asynchronous communication: webhooks, queues
• • Experience in fintech - working at a bank or around one
• • Experience leading meetings or workshops, in any context
• • Knowledge of Scrum / Agile / Lean Startup - even just theoretical
• • Experience creating technical documentation

Qualifications

Must Haves

• • Basics of programming in any language - TypeScript is a plus, but not a requirement
• • Understanding of APIs and HTTP - what a request and response are, GET/POST methods, status codes, JSON format
• • Basics of SQL - SELECT, WHERE, JOIN, reading a database schema
• • Git at a working level: commit, branch, pull request
• • Ability to read technical documentation in English with full understanding
• • Proactivity - asks questions, raises blockers, doesn't disappear with a problem for three days
• • Attention to detail - spots inconsistencies, checks rather than guesses
• • Structured problem-solving - can clearly state what isn't working and what's already been checked
• • Written communication - summarizes findings clearly, writes understandable messages
• • Openness to feedback - takes it without defensiveness, applies it
• • Independence in assigned tasks
• • English min. C1 - speaking and writing
• • Polish min. C1 - speaking and writing

Nice to Haves

• • Hands-on experience with TypeScript or another backend language
• • Familiarity with asynchronous communication: webhooks, queues
• • Experience in fintech - working at a bank or around one
• • Experience leading meetings or workshops, in any context
• • Knowledge of Scrum / Agile / Lean Startup - even just theoretical
• • Experience creating technical documentation

Benefits

• Paid 3-month internship with real responsibilities
• Option to extend the cooperation
• Path toward an Integration Consultant role
• Regular feedback, mentoring, and shadowing opportunities
• A friendly, feedback-driven culture where you can ask anything and grow fast
• Access to internal Tech Talks and knowledge-sharing sessions
• Polish working hours and flexible arrangements