Python Developer - Remote (Financial Services)

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Matlen Silver
SQR, Antl4, Python, Github
Contract W2, Contract

Job Description

Python Developer
Remote (Financial Services)

  • ANTLR4 and Python would be ideal
  • Project - take 4-5million lines of SQR code and port over to Python - building a tool to translate source code
    • Writing a translator (up and working) to read SQL and write Python code
    • Have runtime to Python infrastructure
  • Need - Python experience
    • This is doing language work, not designing a website or app
    • Write PyTest - doing automated testing
    • Testing in Azure - using virtual machines
    • SQR - they reverse engineer it to understand the logic behind it (this is not a must have - someone can pick this side up QUICK)

  • The SQR to Python Translator project is writing software that will read DNA batch jobs, written in the SQR programming language, and translate them to Python. The resulting Python code when run will generate output that exactly matches the output of the original DNA batch job SQR source code.
  • The SQR to Python Translator is itself written in Python. The tokenizer and parser Python code for the Translator are generated from a project defined SQR grammar using the ANTLR4 parser generator. The parser outputs an Abstract Syntax Tree (AST) for the input SQR code. Our translator code reads the SQR AST and programmatically translates it to a Python AST. We input the Python AST into the open source astor module and have it generate Python source code.


Reporting to the project Architect, perform the following types of tasks to help complete development of the SQR to Python Translator:
  • Reverse engineer an SQR command capability and modify the corresponding ANTLR4 grammar definition file to represent the capability.
  • Write a Python script to determine usage of a particular SQR command or feature in the DNA batch job code base.
  • Write or modify automated tests using the Python unittest and pytest modules for an SQR command.
  • Write or modify Python code that performs translation of a SQR AST to a Python AST.
  • Write or modify automated tests using the Python unittest and pytest modules that compare the output of the SQR and Python variants of a DNA batch job.


Candidates should possess many of the skills listed below and the desire to acquire all of them:
  • SQR programming
  • Oracle SQL and PL/SQL programming
  • Python 3 programming
  • Regular Expression usage experience
  • Experience writing or modifying EBNF grammars
  • Experience with parser programming and a parser generator toolkit like ANTLR4
  • Experience writing automated tests, ideally using the Python unittest and pytest modules
  • Experience with TFS and git
  • Experience with Visual Studio and Visual Studio Code
  • Experience using the Azure cloud
  • Ability to work at a different site and possibly in a different time zone than the project Architect

Company Information

Matlen Silver is the hardest working staffing team in the U.S. We do what we know is right for consultants and companies, creating a unique and powerful recruiting and talent experience. We don’t just say we’re hard-working. We are. We don’t just invest in great people, we invest in people with guts, who don’t stand alone with integrity, but together as one united front. Our core is a powerhouse that can’t be described but should be experienced.

Dice Id : matlennj
Position Id : 100999535229434
Originally Posted : 1 year ago

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