Principal Software Developer (IT Solution Department)
Join Sigma Software’s IT Solutions Department and help shape the internal platforms and automation solutions that support thousands of daily business operations across the company. We are looking for a Principal level engineer who combines deep technical expertise with strong leadership and communication skills.
In this role, you will work in a complex enterprise environment, contributing to scalable Back-end-heavy Full Stack solutions, enterprise integrations, and AI-enabled engineering practices.
The position combines hands-on development with architectural decision-making, mentoring, and cross-team collaboration.
We at Sigma Software value engineering excellence, continuous improvement, and modern development approaches. You will have the opportunity to influence technical strategy, drive automation initiatives, and help establish responsible AI-assisted development standards across projects.
CUSTOMER
The role is part of Sigma Software’s IT Solutions Department, which is responsible for building and evolving the company’s internal digital ecosystem. The department develops enterprise business applications, automation platforms, integrations, and productivity solutions that improve operational efficiency and employee experience across multiple business domains.
PROJECT
The project focuses on developing and evolving enterprise-scale internal platforms and automation systems used across Sigma Software. The environment includes interconnected services, enterprise integrations, process automation workflows, and AI-assisted engineering practices designed to support operational scalability and business efficiency.
You will contribute to architecture design, implementation of scalable Back-end solutions, enterprise integrations, and AI-enabled capabilities while collaborating closely with multiple technical and business teams.
Key Technologies: JavaScript, Node.js, React.js, REST API, GraphQL, Claude Code, Codex
Job Description
Collaborate with stakeholders on solution discovery, technical design, estimations, and delivery planning
Design and implement scalable and maintainable software solutions aligned with business and architectural goals
Develop production-quality Back-end-focused solutions while contributing across the Full Stack when required
Own features end-to-end from technical design to deployment and support
Lead and mentor Middle and Senior engineers through technical guidance and peer reviews
Act as a key technical point of contact across multiple teams and drive cross-team collaboration
Design and implement enterprise integrations, automation workflows, and data processing solutions
Contribute to AI-enabled engineering workflows and product capabilities
Establish standards for responsible usage of AI coding assistants within the project
Review AI-generated code for scalability, maintainability, security risks, and edge cases
Ensure system reliability, scalability, and performance under growing business demands
Translate business requirements into practical technical solutions delivering measurable value
Qualifications
7+ years of commercial software engineering experience with a strong Back-end focus
Strong hands-on experience with JavaScript and Node.js
Experience with React.js
Solid experience designing and developing REST API and/or GraphQL solutions
Hands-on experience using AI coding assistants such as Claude Code or Codex in daily development workflows
Strong understanding of software architecture, design patterns, scalability, integrations, and risk management
Experience working in enterprise environments with multiple stakeholders and distributed teams
Ability and willingness to lead technical initiatives and mentor engineers
Strong communication and stakeholder management skills
Ability to balance technical and business priorities
Experience working with incomplete or evolving requirements
Upper-Intermediate English level or higher
WILL BE A PLUS
Previous formal team leadership experience
Experience building AI-enabled business solutions
Experience with enterprise process automation platforms
Experience defining governance standards for AI-assisted development
Exposure to complex distributed enterprise systems
PERSONAL PROFILE
Analytical mindset with strong systems thinking
High level of ownership and accountability
Proactive and communicative approach
Result-oriented mindset focused on measurable outcomes
Ability to work effectively in complex organizational environments
Strong balance between technical depth and business understanding
Comfortable making decisions in ambiguous situations