Senior Software Engineer-Python

About InvoiceCloud:

InvoiceCloud is a fast-growing fintech leader recognized with 20 major awards in 2025 including USA TODAY and Boston Globe Top Workplaces multiple SaaS Awards wins for Best Solution for Finance and FinTech and national customer service honors from Stevie and the Business Intelligence Group. Judges also highlighted our mission to reduce digital exclusion and restore simplicity and dignity to how people pay for essential services as well as our leadership in AI maturity and responsible innovation. Its an award-winning purpose-driven environment where top talent thrives. To learn more .

Senior Software Engineer Python India CoE

About the Role

InvoiceCloudis expanding our India Center of Excellence to mirror and extend U.S. engineering capabilities. As a Senior Software Engineer on the Python platform team forIVR Technology Group you will design and build production backend services across communications billing and payment solutions set the engineering bar through code and design reviews and mentor mid-level engineers into senior contributors. Our core stack includesLinux (Ubuntu) Python (Django/DRF/FastAPI) and telephony(Asterisk/FAST AGI NANP) with selective modernization of legacy.NET/Javaservices. You will report to the Engineering Manager Python (India CoE).

IVR Technology Group a subsidiary of InvoiceCloud is a managed CPaaS services provider specializing in secure PCI-compliant cloud-based customer engagement solutions that streamline voice text and email interactions to enhance the customer experience.

Responsibilities

• Design & build production services:Own end-to-end design and implementation of Python services (Django/DRF/FastAPI) data models API contracts queues caching and DB optimization. Define non-functional requirements for performance reliability and security.

• Technical leadership:Set the engineering bar through design reviews code reviews observability standards and secure-by-default practices. Drive technical decisions independently. Contribute to modernization of /Java services as they migrate to Python.

• Mentorship:Coach mid-level and junior engineers through pairing design feedback and structured code review. Grow IC depth across the team and raise the quality bar through example.

• Delivery ownership:Break down complex initiatives into estimable units surface risks early and operate independently within sprint and quarterly commitments. Drive cycle time defect rates and system stability through data.

• Operations & reliability:Own observability for services you ship (logs/metrics/tracing) participate in on-call rotations drive root-cause analysis on incidents and own the runtime reliability of your code in production.

• Cross-functional & compliance:Partner with Engineering Product Security and U.S.-based teams across time zones. Build to PCI/SOC2/SOX standards via policy-as-code and secure-by-default design.

Education-

Qualifications

• Experience:812 years in software engineering including 5 years building production Python backends on Linux with Django/DRF/FastAPI. Hands-on with distributed systems queues and high-throughput workloads. Telephony exposure (Asterisk/FAST AGI/NANP SIP/TLS NAT traversal SRTP) and VoIP diagnostics with PCAP tools (Wireshark/tcpdump) across SIP ladders RTP codec negotiation jitter packet loss and QoS is a plus. /Java modernization experience is a plus.

• Technical:Services/API architecture microservices queues (Celery/RabbitMQ/Kafka) caching (Redis) and DB optimization (PostgreSQL/MySQL query plans indexing partitioning); ORM and raw SQL fluency. Docker GitLab CI/CD Azure. Observability stacks for logs/metrics/tracing and performance tuning for high-throughput workloads. Secure coding standards and API hardening. Experience building in regulated SaaS (PCI/SOC2/SOX) preferred.

• Leadership & communication:Mentor mid-level engineers into senior contributors. Exercise strong judgment to balance speed risk and technical debt. Communicate clearly with engineers architects and product partners; drive clarity in ambiguous contexts through structure focus and prioritization.

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