[Hiring] Contract Staff Python Engineer @Arch Systems

Role Description

Arch Systems is building the future of manufacturing intelligence. Our ArchFX Cloud platform processes millions of IoT data points daily from advanced factory machines worldwide, helping leading manufacturers optimize efficiency, sustainability, and growth.

We are seeking an experienced Staff Python Engineer for an independent contractor engagement focused on backend engineering and distributed systems. This is a senior individual contributor role; it is not a frontend or management position. You will work on high-scale data systems that power real-time factory insights, drive customer-facing KPIs, and enable Industry 4.0 transformation across the electronics sector.

Scope of Engagement

• Design and deliver backend features in Python for large-scale enterprise SaaS.
• Contribute to technical excellence through testing, CI/CD, and secure design.
• Provide technical guidance and architectural input across backend initiatives.
• Design data models and pipelines that turn high-volume sensor data streams into clean, structured time-series events, handling late-arriving data, retention windows, and reclassification when downstream rules change.
• Own a sync and reconciliation engine that keeps thousands of distributed edge clients consistent with the cloud, incremental updates on demand, retroactive resync to correct historical state, and atomic merging of concurrent edits without data loss.
• Build integrations between our platform and customer enterprise systems; keep two systems of record consistent under partial failures, late data, and ambiguous record matching.
• Design for correctness under concurrency, interval-based data, transactional guarantees across long-running workflows, and consistency between async workers, polling clients, and human edits.
• Build a configuration system that lets large enterprise customers tailor behaviour without forking the codebase, formula-driven configuration evaluated against a runtime context, with safe extension points for customer-specific logic.
• Build APIs reliable and fast enough to power latency-sensitive operational UIs, endpoints hit every few seconds, where a slow or wrong response is immediately visible to a paying customer.

Qualifications

• 10+ years of professional software development (Python and Django required).
• Experience with large, complex backend SaaS applications.
• Strong skills in modelling complex data systems and delivering scalable solutions.
• Hands-on experience supporting production code and iterating with customer feedback.
• Celery, RabbitMQ, TimescaleDB/Athena, manufacturing/industrial tech background is a plus.

Requirements

• This is an independent contractor (B2B) engagement and is not an offer of employment.
• No employment relationship is created between the contractor and Arch Systems.
• The contractor is solely responsible for all taxes, VAT/GST, social security contributions, pension contributions, and any other statutory obligations in their country of residence.
• The contractor is not eligible for employee benefits, equity awards, paid time off, sick leave, health insurance, or participation in any Arch Systems employee benefit programmes.
• The contractor must maintain any registrations, licences, or business entities required by applicable law in their jurisdiction to legally provide services on a self-employed or B2B basis.
• The contractor is responsible for their own professional indemnity, public liability, or other applicable insurance as required in their jurisdiction.
• The engagement does not guarantee a minimum number of hours or a fixed term of work.

Benefits

• The annualised contract rate for this engagement is USD $120,000 – $140,000, based on qualifications, experience, skills, and scope of services.
• Final rate is determined by relevant technical expertise, experience, and expected contribution.
• Rates may be paid in equivalent local currency or USD as agreed in the services agreement.

Application Process

Please submit resumes in English. We encourage candidates with deep backend and distributed systems experience to apply, even if they do not meet every listed qualification.

This posting is for an independent contractor engagement only. Nothing in this posting constitutes an offer of employment, a guarantee of engagement, or a representation of the terms of any specific contract. Final terms are subject to a written services agreement.