Senior/Lead Software Engineer (Cybersecurity & Python)

On-siteSalary not specified
Kyiv, Ukraine

Tech Stack

AgilePython

Job Description, Responsibilities & Requirements

Description language:

About the Position

Senior/Lead Software Engineer (Cybersecurity & Python)

Kyiv, Ukraine

Full-time

Our Client is an engineering-focused startup that combines data analytics with software development. It operates in three main areas: investigative analytics, crypto market research, and cybersecurity. It specializes in developing custom software solutions that handle large-scale data analytics and investigative workflows. Join the team and help build the foundation for a safer digital future.

Responsibilities

  • Active Technical Leadership (60% Tech / 40% Lead): You will lead by example. You are expected to write high-quality, production-ready Python code while conducting rigorous, constructive code reviews to maintain elite standards.
  • System Architecture: You will view every project through an architectural lens, ensuring that our systems are not just functional, but secure, scalable, and resilient.
  • Product Ownership & Stakeholder Management: You will wear the PO hat when necessary-translating high-level business requirements into actionable technical tasks, managing the backlog, and ensuring the "why" behind the code is clear to everyone.
  • Agile Orchestration: We move fast. You will manage multiple projects simultaneously using Agile methodologies, ensuring the team stays focused, unblocked, and on track across different delivery cycles.
  • Cybersecurity Stewardship: Leverage your domain expertise to bake security into the Software Development Life Cycle. You will guide the team in building tools that handle sensitive data, perform complex analysis, and resist exploitation.

Requirements

  • 7+ years of experience in back-end or full-stack development with at least 1+ years in a Lead or 2+ Senior role
  • Ability to translate technical goals into high-quality, scalable, and robust infrastructure.
  • Cybersecurity domain knowledge
  • Crystal Clear Communication: You are the antidote to "fluff." You communicate technical complexities in a direct, actionable way to both engineers and non-technical stakeholders.
  • Multitasking Prowess: You thrive in a "Startup-Plus" environment. You can switch contexts between three different projects without losing sight of the quality or the deadline.
  • Upper-Intermediate English communication skills, both written and verbal (daily communication with clients and team)

Will be a plus:

  • Familiarity with Crypto/Blockchain
  • Experience coordinating with offshore development teams.
  • Exposure to large-scale data processing or Big Data technologies.
  • Previous experience working with AI-assisted development tools

We Offer

  • Health Insurance
  • Professional English Lessons
  • Energy Resilience Budget

About the Company

Our Client is an engineering-focused startup that combines data analytics with software development. It operates in three main areas: investigative analytics, crypto market research, and cybersecurity. It specializes in developing custom software solutions that handle large-scale data analytics and investigative workflows. Join the team and help build the foundation for a safer digital future.

Job Details

Company name:
CORE Team
Location:
Kyiv, Ukraine
Employment Type:
Full-time
Work Mode:
On-site
Posted on TheJob:
May 19, 2026
Last checked:
Jul 1, 2026
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