This job offer is not available in your country.

Senior Python Full-Stack Developer (Python+React)

LuxoftThane, IN

2 days ago

Job description

Project :

We have an ambitious goal to migrate a legacy system written in HLASM (High-Level Assembler) from the mainframe to a cloud-based Java environment for one of the largest banks in the USA.

Responsibilities :

We are looking for an experienced Python Full-Stack Developer (Python+React) who can help perform the migration of the client platform :

Troubleshoot, debug, and resolve issues in GenAI-powered code translation pipelines
Collaborate with dev and client teams to ensure alignment with project goals and deliver high-quality solutions
Maintain and fine-tune RAG application that supports the migration process, specifically optimizing LLM prompts for pattern recognition
Build and maintain FastAPI-based microservices that orchestrate the migration workflow
Implement RAG (Retrieval Augmented Generation) systems using LangChain / Langgraph / LlamaIndex for contextual code understanding
Design stateful migration workflows using LangGraph / LangChain / LlamaIndex for complex multi-step transformations
Mandatory work from the office 5 days per week

Mandatory Skills Description :

Experience in front-end development (preferably React) for building migration dashboards and progress monitoring interfaces (2+ years)

Proficiency in Python development (5+ years), with specific expertise in :

FastAPI for building high-performance REST APIs and WebSocket connections

Async programming patterns for handling concurrent migration tasks

Pydantic for robust data validation in migration pipelines

Experience with vector embeddings and embedding models

Vector database implementation for semantic search

Graph database experience for code dependency mapping

Building agents for code analysis, implementing custom tools for mainframe-specific transformations, creating chains for multi-step code migration

Orchestrating stateful workflows for complex migration scenarios, managing checkpoints for long-running migrations, implementing conditional routing based on code patterns

Building knowledge bases from documentation, implementing hybrid search for code pattern matching, creating custom retrievers for language specific contexts

Implementing similarity search and semantic code retrieval systems

Graph traversal algorithms for dependency analysis

Strong problem-solving and debugging skills for identifying translation anomalies and semantic preservation issues

Excellent communication skills for collaboration with client teams and explaining complex technical translations

Nice-to-Have Skills :

Deep understanding of HLASM instruction sets, macro definitions, and DSECT mappings

COBOL and PL / I for understanding integrated mainframe systems

Assembly language debugging and performance optimization

Mainframe utilities (DFSORT, IEBGENER, IDCAMS)

Experience with mainframe subsystems : CICS transactions, DB2 stored procedures, JCL batch processing

Knowledge of z / OS internals, linkage conventions, and program calling standards

Familiarity with EBCDIC to ASCII conversion, packed decimal (COMP-3) handling

Experience in Java development, particularly Spring Boot, to understand target architecture requirements

Familiarity with large-scale system migrations and modernization efforts, including phased migration strategies and dual-run validation

Prior experience working in the banking or financial services industry, understanding core banking concepts, regulatory requirements, and transaction processing

Knowledge of performance tuning and optimization in cloud environments, including auto-scaling strategies and cost optimization

Create a job alert for this search

Senior Developer Python • Thane, IN

Related jobs

Promoted
New!

Senior Python Developer

Digivance SolutionsKalyan-Dombivli, IN

Hiring : Python Developer (Remote | Night Shift | 5–7 Yrs Exp).We’re looking to onboard an experienced Python Developer for one of our critical projects. Shift : Night (9 : 00 PM – 6 : 00 AM IST).Python |...Show moreLast updated: 15 hours ago

Promoted

Lead Full-Stack Engineer (React, Node, Python) – Autharva

Autharva, Inc.Thane, IN

Location : India (Remote / Hybrid Options).Autharva is building the future of Identity Security for enterprises.We are looking for a hands-on, experienced Full-Stack Engineer to join us in architect...Show moreLast updated: 12 days ago

Promoted

Lead Python Developer_ Exp : 7+ Years

Atyeti Incthane, maharashtra, in

Strong hands-on experience in Python.Strong experience on Django / Flask framework development.Solid understanding of OOP, REST APIs, and microservices architecture. Exposure to SQL / NoSQL databases f...Show moreLast updated: 3 days ago

Promoted

Sr. Fullstack engineer

Relevance LabThane, IN

Design, develop, and maintain our AI Agents platform using Python, FastAPI, React, and TypeScript.Collaborate with cross-functional teams, including product managers, designers, and backend enginee...Show moreLast updated: 30+ days ago

Promoted

Senior Python Backend Developer

BabyBillionthane, maharashtra, in

BabyBillion is one of the fastest-growing kids' content companies in the world.With over 1 billion monthly views, we are on a mission to become the world’s #1 kids' content channel by December 2025...Show moreLast updated: 3 days ago

Promoted

Senior Python Developer

Cactus CommunicationsMumbai, Maharashtra, India

You will be a part of Cactus Labs which is the R&D Cell of Cactus Communications.Cactus Labs is a high impact cell that works to solve complex technical and business problems that help keep us stra...Show moreLast updated: 18 days ago

Promoted

Senior Python Developer

ZingHRMumbai, Maharashtra, India

We are looking for an experienced Python Developer with 3+ years of hands-on development experience.The ideal candidate will have strong expertise in Python and related frameworks, with the ability...Show moreLast updated: 18 days ago

Promoted

Senior Python Developer - Immediate (Bangalore & Hyderabad Candidates)

Techyonsdombivli, maharashtra, in

Techyons is an AI-powered SaaS platform for B2B MSMEs that brings projects, meetings, chat, and AI Drafts together in one secure workspace. AI Drafts is our first-of-its-kind tool that turns context...Show moreLast updated: 1 day ago

Promoted

Senior Python Developer

Destm TechnologiesMumbai, IN

We’re looking for a talented and motivated Python Developer who has strong experience with both FastAPI and Django, and a solid command over MongoDB. You’ll play a key role in developing scalable ba...Show moreLast updated: 18 days ago

Promoted

senior Python Developer

TIGI HRthane, maharashtra, in

Deep hands-on experience with Python.Strong expertise in SQL & NoSQL databases : MongoDB, DynamoDB, PostgreSQL, ClickHouse. TypeScript, and JavaScript (ES6+).Proven experience in building microservic...Show moreLast updated: 2 days ago

Promoted

Python Full stack Developer

Tata Consultancy Servicesthane, maharashtra, in

Required Skills : BigData, GCP, BigQuery, Pyspark, SQL, Python, Github.Interview Type : Weekday Virtual Drive.Show moreLast updated: 12 days ago

Promoted

Senior Full-Stack Developer

Precision Medicine GroupThane, IN

We are seeking a highly skilled and experienced Senior Full-Stack Developer to join our cross-functional product development team. This role is central to building scalable, high-performance AI-powe...Show moreLast updated: 18 days ago

Promoted

Senior Python Engineer

Acorn GlobusKalyan-Dombivli, IN

This is a full-time remote role for a Python Developer at Acorn Globus.The Python Developer will be responsible for back-end web development, software development, object-oriented programming (OOP)...Show moreLast updated: 18 days ago

Promoted

Full Stack Lead (React, Python, Spring Boot)

AidentyxMumbai, Maharashtra, India

As a Full Stack Lead, you will be responsible for designing, developing, and maintaining scalable and high-performing web applications. You will lead a team of developers, ensuring the delivery of h...Show moreLast updated: 2 days ago

Promoted

Full Stack Engineer (Founding Team)

Stealth Startup (AI+D2C)thane, maharashtra, in

We’re building something exciting in the.Build both frontend and backend from scratch (React + Node / Python preferred).Work directly with the founding team to architect the product and tech stack....Show moreLast updated: 4 days ago

Promoted

Senior Python developer

DMAIC Academy & ConsultancyMumbai, IN

Designing, implementing, and maintaining web applications that meet the needs of our.Focus on engineering best practices and continuous improvement, and have lots of business.Excellent knowledge of...Show moreLast updated: 18 days ago

Promoted

Senior Python Developer

AscendionMumbai, Maharashtra, India

Notice Period : Immediate to 20 days.Skills : Python, Pandas / Numpy, Flask / Django, FastApi, AWS.Show moreLast updated: 3 days ago

Promoted

Full Stack Developer - Python

Pixeldust TechnologiesMumbai, Maharashtra, India

We are seeking a highly skilled and versatile Full-Stack Developer - Python to join our team.The ideal candidate will have experience working across both front-end and back-end technologies, with a...Show moreLast updated: 4 days ago

Promoted

Senior Python Developer

CLIRNETmumbai, maharashtra, in

Job Title : Senior Python Developer (AI & API Development).AI research and API development.In this role, you will be responsible for building scalable, high-performance APIs and contributing to AI / M...Show moreLast updated: 30+ days ago

Promoted

Senior Software Engineer - Python

techjaysmumbai city, maharashtra, in

What makes Techjays an inspiring place to work.At Techjays, we are driving the future of artificial intelligence with a bold mission to empower businesses worldwide by helping them build AI solutio...Show moreLast updated: 12 days ago