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Ampstek

Backend Software Engineer (Kotlin)

On site

Phoenix, United states

Senior

Freelance

24-09-2025

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Skills

Communication Kotlin CI/CD Monitoring Data Science NLP

Job Specifications

Backend Software Engineer (Kotlin)

Phoenix, AZ (3 Days - Work from Office)

CTH

Relevant Experience: 10+ Years

The Digital Banking and Payments team is responsible for our Card Payments Processing and Digital Bank products. We are currently building platforms responsible for ACH, Wire, Bill Pay, Zelle, Debit, Checking, and Savings applications that allows teams to create products at scale and allow digital channels to deliver compelling experiences in a dramatically faster fashion. We're building a next-generation orchestration and automation platform to support thousands of business processes across the enterprise. This isn't about coding one-off automations -- it's about creating the platform, APIs, and orchestration primitives that other developer teams will use to define, run, and scale their business processes.

As the Lead Backend Engineer, you'll be hands-on in Kotlin every day, designing platform services, integrating workflow orchestration frameworks, and enabling GenAI-powered intent parsing and decision nodes. You need to understand complexity, trade offs and scaling.

Responsibilities:

* Design and build backend platform services in Kotlin for ingestion, orchestration, RBAC, monitoring, and developer tooling.

* Implement and optimize workflow orchestration frameworks (e.g., Temporal, Cadence, Camunda, Argo).

* Provide scalable APIs and abstractions that empower other teams to build workflows on the platform.

* Integrate GenAI/NLP pipelines for intent parsing, process matching, and intelligent decisioning.

* Champion developer experience (DX) through tooling, CI/CD improvements, and observability.

* Mentor backend engineers, lead design reviews, and guide technical decisions.

* Collaborate closely with frontend, product, and process analysts to ensure platform adoption and impact.

Qualifications:

* Bachelor's degree in computer science, Engineering, Data Science, or related field (or equivalent experience).

* 10+ years of backend engineering experience, with strong Kotlin/JVM expertise.

* Proven track record building platforms, frameworks, or orchestration services (not just applications).

* Hands-on experience with workflow orchestration systems (Temporal, Cadence, Camunda, Argo, or similar).

* Deep knowledge of distributed systems, API design, and event-driven architectures.

* Practical experience integrating GenAI/NLP into backend systems.

* Experience with RBAC/security models in multi-tenant or enterprise environments.

* Strong bias for action, ability to thrive in lean teams inside large organizations, and passion for delivering value quickly.

* Natural mentor with excellent communication skills; collaborates across functions and knows when to push back.

About Ampstek

Ampstek is a global IT solutions partner serving clients across North America, Europe, APAC, LATAM, and MEA. We specialize in delivering talent and technology solutions for enterprise-level digital transformation, trading systems, data services, and regulatory compliance.

Contact:

Snehil Mishra

snehil@ampstek.com

Desk: 609-360-2673 Ext. 125

LinkedIn

www.ampstek.com

About the Company

Ampstek supplies thousands of tech and digital professionals annually to a range of clients through its offices which spread across in 42 countries. From simple beginnings in 2014, Ampstek has always been on a journey to reinvent the world of recruitment through creating amazing customer and candidate experiences driven by a genuine desire to build long term relationships and outcomes. This motivation to break from the pack is stronger than ever as we roll out Ampstek Power globally, an innovative life hub platform for freel... Know more