Testing Public Posting in Claude

PKR; Chesterbrook (PA); Hybrid; USD 100,000 - 120,000; Full time

Benefits offered by this job

Comprehensive health insurance

Employer-paid premiums

3 weeks vacation

Paid sick time and holidays

401(k) with match

Life insurance

AD&D coverage

Job summary

PKR is seeking a Staff Full Stack Engineer to build features from the SDK on a player device through backend services and the portal. This senior IC role is remote within the Philadelphia–New York corridor with in‑person collaboration in Philadelphia and occasional international travel.

You will own features end-to-end, improve performance, and ensure regulatory compliance while collaborating with Product, QA, SRE, and Compliance across distributed teams.

Qualifications

• Staff-level experience delivering complex features end-to-end.
• Backend with Java/Spring and REST/microservices.
• Frontend with TypeScript/JavaScript and Angular.
• SDK development for client apps (mobile/desktop/browser).
• Experience with low-latency, high-throughput systems.
• Cloud orchestration, containers, multi-region deployments.
• Security-minded engineering: TLS, tokens, attestation.
• Strong CI/CD practices and modern Git workflows.

Responsibilities

• Design, build, test, and ship end-to-end features across the stack.
• Own issues from report to verified fix across components.
• Contribute code to Java/Spring backend, Kotlin/Multiplatform SDK, and Angular Portal.
• Ensure parity across native and web implementations.
• Document architectural decisions and rationale; participate in reviews.
• Own production releases, on-call, incidents, and root-cause analysis.
• Collaborate with Product, QA, SRE, and Compliance to deliver reliable releases.
• Meet regulatory and evidence requirements for releases.

Skills

Java & Spring

TypeScript/JavaScript

Angular

SDK development

Low-latency systems

Cloud infrastructure

Security engineering

CI/CD & Git workflows

Job description

Who Our Client Is:

Our client builds the geolocation compliance layer for regulated online sports betting and gaming. Before an operator can accept a wager, they must prove the player is physically located where the law requires and demonstrate this to a regulator on demand. Our client solves this problem in real time, at scale, for some of the largest betting operators in the US and internationally.

What Our Client Needs:

Our client is seeking a Staff Full Stack Engineer to build features end-to-end, from the SDK running on a player’s device through to the backend services that decide whether a wager can be placed. This is a senior individual contributor role with no direct reports, working remotely within the Philadelphia to New York City corridor, with regular in-person collaboration in Philadelphia and occasional international travel to meet the distributed engineering team.

What You’ll Do:

• Design, build, test, and ship features end-to-end across the stack, from SDK and Portal through APIs, backend services, and the data pipeline
• Take a customer problem from report to verified fix regardless of which component it originates in, following the behavior across system boundaries rather than handing it off
• Contribute production code to the Java/Spring backend services, the Kotlin Multiplatform SDK and its native layers, and the Angular/TypeScript Portal and JavaScript Web SDK
• Ensure consistent behavior and feature parity across platforms, including naming, metrics, and semantics shared between native and web implementations
• Raise the technical standard through code review, pairing, and documenting architectural decisions and their rationale
• Own what you ship in production, including performance, on-call participation, incident response, and root-cause resolution
• Partner with Product, QA, SRE, and Compliance to define requirements, scope testing, and deliver reliable production releases
• Ensure releases meet regulatory and compliance requirements, including appropriate testing, documentation, change controls, and evidence requirements
• Drive effective async collaboration across the distributed organization, clearly communicating technical decisions, progress, risks, and recommended solutions

What You’ll Need:

• Staff-level engineering experience delivering complex features end-to-end across multiple layers of a production system
• Strong backend expertise in Java and Spring/Spring Boot, including REST APIs and microservices
• Strong client-side expertise in TypeScript and JavaScript, including production experience with a modern framework such as Angular
• Hands-on experience with client SDK development, whether mobile, desktop, or browser, including Kotlin, Kotlin Multiplatform, or equivalent native platform experience
• Experience building or maintaining SDKs consumed by third-party applications, including session lifecycle, configuration and feature-flag delivery, and integration ergonomics for client developers
• Experience building and operating low-latency, high-throughput, mission-critical systems, including capacity planning, load testing, and diagnosing latency at the tail rather than the mean
• Strong cloud infrastructure experience, including containers, orchestration, multi-region and multi-tenant environments
• Security-conscious engineering experience, including TLS, token management, certificate validation, request/response signing, and device attestation
• Strong testing practices across units, integration and automated regression testing, plus modern CI/CD and Git workflows

What They Offer:

• Compensation range of $100,000 to $120,000
• Comprehensive medical, dental, and vision insurance
• 100% employer-paid employee health premiums
• 50% employer-paid premiums for eligible dependents
• 3 weeks of paid vacation starting in the first year
• Paid sick time and company holidays
• 401(k) retirement plan with strong company match
• 100% company-paid life insurance and AD&D