Lead Developer (Expert Network)
Primary stack
Job description
About the Position
Lead Developer (Expert Network)
About the Company and Why Join Us
OLSYS Ltd provides full-service solutions for mid-market and enterprise organizations. We build technology that moves businesses forward. For 19+ years, startups, investors, and enterprises have trusted our 200+ engineers to deliver software, AI, and cloud solutions that create real impact.
Our culture rewards ownership, sharpens expertise, and celebrates collaboration. Here, you work on challenges that matter: AI systems, enterprise platforms, and products used by industry leaders across finance, healthcare, retail, and beyond.
Grow your skills. Ship work you’re proud of. Build what’s next.
About the Expert Network Program
The OLSYS Expert Network Program brings together experienced technical and non-technical professionals to collaborate with OLSYS on a flexible, trust-based basis.
The program is designed to connect experts with businesses looking for innovative technology solutions while fostering knowledge sharing, technical excellence, and long-term professional relationships.
This role is part of our Expert Network, not tied to a single project or immediate opening. It is an opportunity to get acquainted, stay connected, and be among the first experts we contact when relevant opportunities arise.
Role Overview
As a Lead Developer within the OLSYS Expert Network, you will collaborate with us on demand, depending on project needs and your availability.
This role is ideal for experienced engineers and technical leaders who:
- Are open to part-time or consulting collaboration
- Enjoy influencing technical decisions beyond pure coding
- Participate in pre-sales, interviews, and advisory activities
- Are considering a future career move and want to stay connected
Who We Are Looking For
We are looking for senior and lead-level developers with strong technical background and leadership experience across various technology stacks, including but not limited to:
- Backend: Java,.NET, Node.js, Python, Go, PHP
- Frontend: React, Angular, Vue
- Mobile: iOS, Android, Flutter, React Native
- Cloud & DevOps: AWS, Azure, GCP, Kubernetes, CI/CD
- Data & AI: Data Engineering, Machine Learning, AI-driven solutions
- Architecture: Solution, System, Cloud Architecture
Experience in system design, scalability, code quality, and team leadership is highly valued.
How You May Collaborate With Us
Depending on your interests and availability, collaboration may include:
- Consulting and technical advisory
- Participation in pre-sales activities (solution design, estimations, technical discussions with clients)
- Conducting technical interviews and expert evaluations
- Supporting project delivery and implementation
- Architecture reviews and technical audits
- Mentoring and supporting internal engineering teams
Forms of Cooperation
The Expert Network offers several cooperation models:
- Part-time collaboration: Flexible, on-demand involvement for consulting, interviews, or pre-sales
- Full-time cooperation: Long-term, project-based engagement when mutual interest aligns
- Advisory partnership: Occasional expert involvement for knowledge sharing, workshops, and reviews
All cooperation is managed under B2B contracts, with remote work as the default format.
Who This Is For
This role is a great fit if you:
- Have a stable full-time role but want to stay actively involved in the industry
- Are interested in flexible collaboration and additional professional opportunities
- Enjoy working with different domains, clients, and technologies
- Want priority access to future full-time or long-term opportunities at OLSYS
Benefits of Joining the Network
- Flexible workload and collaboration formats
- Exposure to diverse projects, domains, and technologies
- Direct involvement in pre-sales and client-facing discussions
- Priority consideration for future full-time opportunities at OLSYS
- Access to a professional expert community
- Long-term collaboration with like-minded professionals
What Joining the Network Means
Joining the OLSYS Expert Network starts with an introductory conversation and mutual alignment.
There is no immediate obligation – instead, we build a trusted connection and stay in touch.
When relevant opportunities appear, you will be among the first experts we reach out to.
Contact Information
Address:
Chicago, Illinois
Email:
[email protected]
Main website:
OLSYS LTD
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OLSYS provides full-service solutions formid-marketand enterprise organizations.With 15+ years of experience, 100+ projects, and 200 + strong technical experts in the team, we continue to grow by expanding our development team in Europe, as well as expanding the base of new clients and projects.As an enterprise software development company, we are building long-term partnerships helping our clients accelerate their digital experiences with reasonable IT investments.Our tailored approach, e-commerce focus, and flexible solutions allow us to design, develop, and deliver scalable, integrated commerce platforms that drive profits and boost the business.Our industry focus:— Banking and Finance (business continuity management, planning system, banking app development);— Retail and E-Commerce (B2B Commerce, B2C Commerce, Digital/E-Commerce customer experience);— Healthcare (website development for Healthcare organizations).Our expertise includes:— Commerce Solutions— Development Services— Creative Services— Quality Assurance and Testing— Maintenance and Support— E-Commerce ConsultingStay in touch with our later updates on the teamuadd.me/olsys