Java Technology Lead - Support

Accertify, Inc.•Itasca, IL

12d•$125,000 - $150,000•Hybrid

About The Position

Accertify enables commerce by doing one thing extraordinarily well: pinpointing fraud. The company's Predictive Yes Platform helps businesses say yes to more - more good customers, more revenue, and more growth - without getting burned. It's a precise, confident, data-backed yes, made possible by joining signals across the entire customer lifecycle through unmatched data volume, layered AI-powered models, and a consortium approach that protects clients from bad actors spotted anywhere in the network while unlocking business with good actors verified anywhere in the network. With more than 10 billion transactions and over $1 trillion in commerce processed in 2025 alone, Accertify delivers the intelligence and precision that fraud and payments teams need to say yes confidently and enable growth. That's the More Yes difference. We are seeking an Application Support – Java Technologist to support a fast-paced, mission-critical 24x7x365 SaaS environment powered by leading-edge technologies. In this role, you will be responsible for troubleshooting and resolving issues across a large-scale platform built on Linux and Java, ensuring the stability, performance, and availability of our applications. You will collaborate closely with Development, Infrastructure, and Support teams to identify root causes, implement solutions, and drive continuous improvements within a high-volume transactional environment. This position requires strong technical problem-solving skills, a customer-focused mindset, and the ability to thrive in a dynamic, fast-moving setting. As part of a global support organization, you will help maintain and support platforms operating across multiple data centers and regions, including the United States and Europe, ensuring seamless service delivery for our customers worldwide.

Requirements

Solid experience supporting a Saas environment product with external customers
A keen analytical, structured, and detail-oriented approach to problem-solving and troubleshooting
Practical familiarity with the differences between object-oriented programming and functional programming
A demonstrable understanding of Java and Python is required
Experience with at least one RDBMS, preferably Oracle or Postgres, and commensurate skill in writing SQL scripts
Working knowledge of industry standard formats, especially XML, CSV, and JSON; this includes an understanding of character encodings like UTF-8 and ISO-Latin 1
Familiarity with the concepts of hashing, symmetric encryption, public key encryption, and SSL/TLS
Basic understanding of common networking components and topologies in standard Web application environments
Knowledge of the basic Web technologies: HTML, CSS, JavaScript
Experience in Linux OS and command line operations
Foundational understanding of one programming language, basic database concepts, and version control (e.g., Git).
Proficiency in multiple languages and frameworks, good understanding of data structures/algorithms, and experience with basic system design.
Deep expertise in core technologies; understands design patterns, architecture, and performance optimization; and is a go-to person for technical issues.
Minimum of 3 years of experience in highly scalable, high availability environments supporting high transaction volumes. An understanding of the technical challenges and requirements of such environments.
Minimum of 3 years of experience with Java and Python languages
Minimum of 3 years of experience with at least 2 of the following relational databases: Oracle, MySQL, SQL Server
Experience working with customers to explain complex technical concepts
Passion for software engineering, mobile security, and writing clean, maintainable code.
Proven problem-solving skills, the ability to roll up your sleeves and tackle hard problems with little technical direction or oversight.
Customer-first attitude and strong written and verbal communication skills
Adept and comfortable working in a rapidly changing environment is required
Bachelor's degree in Computer Science or equivalent work experience

Nice To Haves

Experience supporting and/or debugging mobile applications written in Objective-C for iOS and/or Java for Android is a PLUS!

Responsibilities

Diagnose problems with our Web-based enterprise application and various vertical applications
Documentation of processes involved with support duties for internal customers and end-users
Contribute in writing and in person to root cause analysis meetings as part of process improvement
Operate and support a large SAAS platform based on Java and Linux
Participate in the development and testing of internal tools, scripts, and other coding projects
Work closely with peer teams to deliver high availability and optimum performance for customers
Work with application developers, support, and our QA team to isolate customer issues
Diagnose and analyze issues reported by clients