N #3163
Applications open
Full-Time Job
Code Reviewer - Java
Zettamine Labs
About the role
Hello, Greetings from ZettaMine!!! Freelancing Opportunity: We are hiring Java Developers (Software Engineers) for an exciting AI research and software engineering project focused on evaluating and improving advanced Large Language Models (LLMs) through real-world software development, GitHub issue analysis, codebase evaluation, and testing. Locations: PAN India Role: Java Developer
Software Engineer Experience
Minimum 3+ years Employment Type: Freelance Mode:
Remote Engagement Duration
23 weeks Mandatory Eligibility
Criteria Technical Qualifications
- Minimum 3+ years of overall experience.
- Strong hands-on experience with Java .
- Proficiency in Git, Docker, and basic software pipeline setup .
- Ability to understand, analyze, and navigate complex codebases.
- Comfortable running, modifying, and testing real-world projects locally.
- Familiarity with high-quality public GitHub repositories.
- Strong understanding of software development practices and code quality.
- Experience contributing to or evaluating open-source projects is an added advantage.
Nice to Have
- Previous participation in LLM research or AI evaluation projects.
- Experience building or testing developer tools and automation agents.
- Availability & Commitment Minimum commitment: 40 hours per week .
- Must be available for 8 hours per day .
- Required overlap of at least 4 hours with PST business hours .
- What You'll
- Work On: Analyze and triage GitHub issues across trending open-source libraries.
- Set up and configure code repositories, including Dockerization and development environment setup.
- Evaluate unit test coverage and overall testing quality.
- Modify and execute codebases locally to assess LLM performance in bug-fixing scenarios.
- Identify software bugs, code issues, and potential improvements.
- Collaborate with researchers to identify repositories and issues that challenge LLM capabilities.
- Support AI research initiatives through hands-on software engineering and code evaluation. .
- Interested Candidates: If you meet the eligibility criteria and are interested in this remote freelancing opportunity, please share your updated CV and LinkedIn profile URL at aziza.m@zettamine.com .
Eligibility & process
Who can apply
Experience: 2-7 Yrs. Open to matching qualifications.
Skills & stack
Selection process
- Online Assessment / Technical Interview Rounds / HR Review
Prep kit
20 resourcesStudy material 4
Aptitude Practice Questions & Mock Tests
Curated logical, quantitative, and verbal reasoning problems for the initial online screening round.
Company-Specific Interview Preparation Corner
Detailed interview experiences, exam formats, and previous test questions for Zettamine Labs and tech roles.
Technical Placement Question Bank
High-yield coding cheat sheets, core CS fundamentals (OOP, DBMS, OS, Networks), and rapid revision guides.
Algorithm, DSA & Live Code Debugger Practice
Hands-on problem sets to improve coding speed and step-by-step memory debugging.
Company-specific guides 4
APTITUDE & LOGIC
Aptitude Practice Questions & Online Mock Tests
Curated logical, quantitative, and verbal reasoning problems to sharpen reasoning skills required for the initial screening test.
COMPANY GUIDE
Zettamine Labs Interview Preparation Corner
Comprehensive guide covering typical interview formats, common questions, and preparation tips for Zettamine Labs and off-campus tech roles.
MOCK TESTS & PAPERS
Comprehensive Interview Prep Resources & Syllabus
Collection of previous year questions, company-specific test patterns, and interview experiences for technical and HR rounds.
CODING PRACTICE
Algorithm and Data Structure Problem Set
Practice problems to improve coding proficiency and algorithm problem-solving speed for technical rounds.
Likely coding questions 4
Round-wise strategy 4
Round 1: Online Assessment (OA)
Aptitude, Quantitative Logic & 2 Coding Problems
Focus on accuracy and speed. Practice arrays, strings, and standard arithmetic puzzles.
Round 2: Technical Interview 1
Core Tech Stack (Project, Docker, Debugging, CI/CD, Analysis, GitHub, Java, Git) & Live Code Tracing
Explain your thought process aloud. Analyze time & space complexities before coding.
Round 3: System Design & Problem Solving
Database Schemas, APIs & Architecture Basics
Clarify edge cases, diagram schemas cleanly, and discuss scalability trade-offs.
Round 4: HR & Cultural Fit Discussion
Zettamine Labs Core Values, Learning Agility & Offer Terms
Demonstrate passion, strong communication, and readiness for full-time collaboration.
Technical questions 5
Explain OOP (Object-Oriented Programming) principles with real-world examples in Project. Answer
Model answer: 1. Encapsulation (data hiding via private fields/getters). 2. Abstraction (hiding implementation complexity). 3. Inheritance (code reusability). 4. Polymorphism (method overriding/overloading).
What is the time and space complexity of QuickSort vs MergeSort? Answer
Model answer: QuickSort: Average O(N log N) time, O(log N) space. Worst O(N^2). MergeSort: Guaranteed O(N log N) time, but requires O(N) auxiliary space.
Explain the difference between SQL Indexing (B-Tree vs Hash) and when not to use an index. Answer
Model answer: Indexes speed up SELECT queries via B-Trees. However, they slow down INSERT, UPDATE, and DELETE operations because indexes must be updated on disk. Avoid on low-cardinality columns (e.g., boolean flags).
What happens under the hood when you enter a URL in a browser? Answer
Model answer: 1. DNS lookup (resolves IP). 2. TCP 3-way handshake (SYN, SYN-ACK, ACK). 3. TLS negotiation for HTTPS. 4. HTTP GET request sent. 5. Server responds with HTML/CSS/JS. 6. Browser renders DOM & CSSOM tree.
What is the difference between REST and GraphQL APIs? Answer
Model answer: REST uses multiple fixed endpoints with possible over/under-fetching. GraphQL uses a single endpoint allowing clients to query exact fields in a single request.
Behavioural & HR questions 3
Why do you want to join Zettamine Labs as a Code Reviewer - Java?
Highlight Zettamine Labs's market reputation, recent tech innovations, and how your skills in Project directly solve their team's objectives.
Highlight Zettamine Labs's market reputation, recent tech innovations, and how your skills in Project directly solve their team's objectives.
Describe a challenging bug or academic project roadblock and how you resolved it.
Use the STAR method: Situation (project context), Task (what needed solving), Action (specific tools/logic applied), Result (quantifiable positive outcome).
Use the STAR method: Situation (project context), Task (what needed solving), Action (specific tools/logic applied), Result (quantifiable positive outcome).
How do you handle strict deadlines or sudden scope changes?
Explain your prioritization strategy, proactive communication with mentors/peers, and agile mindset.
Explain your prioritization strategy, proactive communication with mentors/peers, and agile mindset.
Competitive Package (Best in Industry)
Remote, India
Experience: 2-7 Yrs. Open to matching quaβ¦
