Senior Mobile Developer (Android)

Position: Senior Mobile Developer
Location: REMOTE (Central or Mountain Time Preferred)
Type: Contract
Duration: 6 Months + Potential Extensions

Role Purpose
The Senior Android Developer will serve as both a hands-on contributor and mentor. The role involves reviewing and optimizing the existing Android codebase, addressing performance and stability issues, and working side-by-side with the current Android developer to transfer knowledge and build confidence.

Focus Areas
-Optimize performance on constrained hardware (limited CPU and memory).
-Reduce crashes and reboots (primary technical metric).
-Improve responsiveness by transitioning from polling-based to event-driven interactions.
-Refactor inefficient data structures to reduce garbage collection pressure.
-Evaluate and optimize gRPC usage (move to asynchronous).
-Review and improve MQTT implementation.
-Prototype improvements in targeted areas for quick, measurable wins.
-Provide architectural guidance and best practices in threading, memory management, and CPU utilization.
-Collaborate with the current Android developer to mentor and guide technical growth.
-Partner with Technical PM on prioritization, testing, and rollout of changes.
-Review companion public-facing applications for similar improvements.

Required Experience
-5+ years of Android development experience.
-Expertise in Kotlin and Java
-Strong background in performance optimization, threading, CPU/memory management.
-Hands-on experience with gRPC, MQTT, and event-driven architectures.
-Proven track record with large-scale or public-facing Android applications.
-Ability to act as a mentor and collaborator, supporting developer growth while maintaining confidence and self-esteem.

Nice to Have
-iOS development experience.
-Prior work with logistics or driver-facing applications.
-Experience with event-driven bus architectures.
-Familiarity with applications running on custom hardware.

Application Environment
-Android 12
-Kotlin 1.6.20 (primary)
-SDK version 29

Beacon Hill is an equal opportunity employer and individuals with disabilities and/or protected veterans are encouraged to apply.

California residents: Qualified applications with arrest or conviction records will be considered for employment in accordance with the Los Angeles County Fair Chance Ordinance for Employers and the California Fair Chance Act.

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Company Profile:

Beacon Hill Technologies, a premier National Information Technology Staffing Group, provides world class technology talent across all industries utilizing a complete suite of staffing services. Beacon Hill Technologies' dedicated team of recruiting and staffing experts consistently delivers quality IT professionals to solve our customers' technical and business needs.

Beacon Hill Technologies covers a broad spectrum of IT positions, including Project Management and Business Analysis, Programming/Development, Database, Infrastructure, Quality Assurance, Production/Support and ERP roles.

Learn more about Beacon Hill and our specialty divisions, Beacon Hill Associates, Beacon Hill Financial, Beacon Hill HR, Beacon Hill Legal, Beacon Hill Life Sciences and Beacon Hill Technologies by visiting .

Benefits Information:

Beacon Hill offers a robust benefit package including, but not limited to, medical, dental, vision, and federal and state leave programs as required by applicable agency regulations to those that meet eligibility. Upon successfully being hired, details will be provided related to our benefit offerings.

We look forward to working with you.

Beacon Hill. Employing the Future