Senior Staff Backend Engineer – Integrations Platform Architecture & Scalability Lead (Customer Value Track)

Why arenaflex?

At arenaflex, we empower more than 60,000 fast‑growing organizations to thrive by removing the friction from document workflow. Our all‑in‑one automation platform enables teams to create, manage, and sign digital documents—proposals, quotes, contracts, and more—at lightning speed. As a market‑leading SaaS provider, arenaflex is on a relentless mission to redefine how businesses collaborate, negotiate, and close deals. If you are passionate about building resilient, high‑performance systems that power critical business processes, you have found your next home.

Role Overview

We are seeking a visionary Staff Backend Engineer to own the technical direction of our Integrations Platform. This is a senior individual contributor role that sits at the intersection of architecture, engineering excellence, and mentorship. You will shape the platform’s roadmap, drive large‑scale distributed system design, and elevate the engineering talent across multiple squads. Your work will directly influence arenaflex’s ability to deliver seamless integrations for thousands of customers worldwide.

Key Responsibilities

• Strategic Architecture: Define and champion the long‑term technical strategy for the Integrations Platform, designing scalable, reliable, and secure distributed systems that align with product vision.
• Roadmap Development: Conduct a comprehensive assessment of the current architecture, data flows, and scalability patterns; produce an evolution roadmap that balances short‑term improvements with long‑term innovation.
• Technical Debt Management: Proactively identify, prioritize, and resolve critical technical challenges and legacy debt, ensuring the platform remains maintainable and performant.
• Engineering Standards: Establish and enforce backend engineering best practices, code quality standards, and observability guidelines through rigorous reviews and tooling enhancements.
• Mentorship & Leadership: Provide expert guidance and mentorship to engineers across multiple teams, fostering autonomy, problem‑solving skills, and career growth.
• Cross‑Team Collaboration: Lead technical aspects of cross‑functional initiatives from design through production, influencing decisions and building consensus without direct managerial authority.
• Hands‑On Development: Contribute high‑quality, well‑tested code to critical backend services, taking end‑to‑end ownership of features and platform improvements.

Required Qualifications

• Experience: 8‑10+ years of progressive backend software development experience, with a deep focus on designing, building, and operating large‑scale distributed systems.
• Technical Depth:
  • Expert proficiency in Python and solid computer‑science fundamentals (algorithms, data structures, concurrency).
  • Extensive experience with cloud platforms—preferably AWS—including serverless, container orchestration, and networking.
  • Strong understanding of relational and NoSQL databases, as well as messaging systems such as Kafka, RabbitMQ, NATS, and gRPC.
  • Proven track record in performance optimization, scalability engineering, and high‑availability design.
  • Comprehensive knowledge of application architecture, microservices, and system design patterns.
• Leadership & Soft Skills:
  • Exceptional written and verbal communication skills; ability to articulate complex technical concepts to diverse audiences.
  • Analytical mindset with strong problem‑solving abilities; comfortable breaking down ambiguous challenges into actionable solutions.
  • Self‑directed, proactive, and comfortable thriving in a fast‑paced, iterative environment.
  • Demonstrated experience mentoring and coaching engineers, fostering a culture of continuous learning.

Preferred Qualifications (Bonus Points)

• Hands‑on experience with iPaaS tools such as Workato, MuleSoft, or similar integration platforms.
• Background in a SaaS organization with a large portfolio of third‑party integrations.
• Practical experience with Java or Go (Golang) for backend services.

Core Skills & Competencies

• Deep expertise in designing fault‑tolerant, event‑driven architectures.
• Proficiency with CI/CD pipelines, automated testing, and infrastructure‑as‑code (Terraform, CloudFormation).
• Strong grasp of security best practices, including authentication, authorization, and data encryption.
• Ability to drive observability initiatives—metrics, tracing, logging—to ensure platform health.
• Collaborative mindset; comfortable influencing without direct authority.

Career Growth & Learning Opportunities

arenaflex invests heavily in the professional development of its engineers. As a Staff Engineer, you will have access to:

• Executive‑level exposure to product strategy and roadmap planning.
• Leadership development programs, including mentorship from senior technology leaders.
• Conference sponsorships, technical workshops, and a generous education stipend.
• Opportunities to lead high‑impact, cross‑functional projects that shape the future of the company.
• A clear path toward Principal Engineer or Engineering Management roles, based on your career aspirations.

Work Environment & Culture at arenaflex

Our culture is built on transparency, integrity, and a relentless focus on delivering value to our customers. Key cultural pillars include:

• Work‑Life Balance: Flexible remote‑first policy—our team is distributed worldwide, and you can work from anywhere.
• Collaborative Spirit: Regular virtual team‑bonding events, hackathons, and knowledge‑sharing sessions keep us connected and innovative.
• Feedback‑Driven Growth: An open culture that encourages continuous feedback, peer recognition, and personal development.
• Diversity & Inclusion: arenaflex is an Equal Opportunity Employer, committed to fostering an inclusive environment where every voice is heard.

Compensation, Perks & Benefits

While specific salary ranges are tailored to experience, arenaflex offers a competitive total compensation package that includes:

• Base salary aligned with market benchmarks for senior engineering talent.
• Annual performance‑based bonuses and equity participation.
• Comprehensive medical, dental, and vision insurance plans.
• Generous paid time off, including 6 self‑care days per year.
• Retirement savings plans with company matching.
• Professional development budget, conference attendance, and certification reimbursements.
• Home office stipend and ergonomic equipment allowance for remote workers.
• Wellness programs, mental‑health resources, and employee assistance services.

How to Apply

If you are ready to lead the next generation of integration technology at a high‑growth SaaS leader, we want to hear from you. Click the link below to submit your application, and let’s build the future of document workflow together.

Apply Now – Join arenaflex

Final Thoughts

At arenaflex, you will be part of a mission‑driven team that values technical excellence, creativity, and a supportive community. Your expertise will directly influence the scalability and reliability of a platform that powers thousands of businesses worldwide. Join us, and help shape a product that truly changes the way companies work.