Jobs in the United States

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Added 1 min ago
Sr. Data Engineer
Exact Sciences Corp
United States
· Proficient in Databricks and Delta Lake, big data file formats (Parquet, Avro), AWS (S3, SQS) and GitLab, REST API development, Tableau, and Jira/Confluence.
Added 1 min ago
Staff Data Engineer
Exact Sciences Corp
United States
Added 2 mins ago
CV
Computer Programmer
Chimes VA Brand
United States
- $43 to $69 USD / hour
Create, modify, and maintain secure, testable code and scripts for applications, interfaces, data processing, and automation, including database queries and API interfaces.
Added 2 mins ago
Platform Engineer - AI Guardrails (OpenShift)
Bank of America, National Association
United States
Experience with API gateways, proxies, and service integration patterns.
Added 3 mins ago
Sr Full Stack Developer-Web Technology
Pacific Life Insurance Company
United States
We’re actively seeking a talented Senior Applications Developer to join our Journey Transformation Engineering team in Newport Beach, CA. Relocation assistance may be provided. You will…
Added 4 mins ago
D
Senior ServiceNow Engineer
DIGIOFFICE
Johns Creek, GA
- $125,000 to $150,000 USD / year
Deep experience with REST/SOAP API integrations, IntegrationHub, and MID Server
Added 6 mins ago
Technology Integrations and Security Coordinator
Lakeshore College
Cleveland, WI
Proficiency in data serialization formats, specifically JSON and XML, for API integration and configuration management.
Added 6 mins ago
Assembler
Air Products Wisconsin
Germantown, WI
General ThermoDynamics (An API Heat Transfer Company)
Added 6 mins ago
Staff Software Engineer - Card Technology
Capital One
NY · San Francisco, CA · McLean, VA · Chicago, IL
Collaborate with senior engineering and architecture leaders to define long-term platform strategy and API standards
Added 7 mins ago
CS
Test Engineer 3 - Linux/Bash/Python/HPC/Gitlab/CI/CD/Docker
Captivation Software
Annapolis Junction, MD
- $130,000 to $270,000 USD / year
Added 7 mins ago
Sr. Data Engineer
Exact Sciences Corp
United States
· Proficient in Databricks and Delta Lake, big data file formats (Parquet, Avro), AWS (S3, SQS) and GitLab, REST API development, Tableau, and Jira/Confluence.
Added 7 mins ago
Staff Data Engineer
Exact Sciences Corp
United States
Added 8 mins ago
Specialist, Data Engineer - Snowflake and Python
Nationwide Life and Annuity Insurance Co
OH · AZ · IA
Required skills: Snowflake, Python, Data Warehousing & Data Modeling, AWS Services, Data Pipeline Development, API Integrations, Advanced SQL, Spark, CI/CD, GitHub
Added 9 mins ago
C
Computer Programmer
Chimes
United States
- $43 to $69 USD / hour
Create, modify, and maintain secure, testable code and scripts for applications, interfaces, data processing, and automation, including database queries and API interfaces.
Added 10 mins ago
Infrastructure Software Engineer II (Remote - US)
BNSF
United States
This is a full stack infrastructure engineering role, involving backend services, APIs, and developer-facing tooling for our infrastructure and platform services
Added 11 mins ago
Geospatial and Digital Innovation Development Leader
True Environmental
Remote, United States
Proven development skills: Python, SQL (PostgreSQL/PostGIS, SQL Server), JavaScript (Esri JS API, Leaflet, Node.js), and relational database design.
Added 13 mins ago
Product Manager - Money Movement
The Northern Trust Company
Chicago, IL
Added 14 mins ago
Java Fullstack Developer
Capgemini
New York, NY, NY
Added 15 mins ago
Technical Support Specialist - Lead Generation
Constant Contact
Remote, United States
Previous experience using HTML and API is a plus!
Added 15 mins ago
Software engineer 1 – AI/ML Engineer (MLOps)
U.S. Bank National Association
Chicago, IL
Added 15 mins ago
Automation Engineer 4 (SDET/API automation)
U.S. Bank National Association
Atlanta, GA
Create, execute, and optimize automated API test suites using tools such as Postman, Bruno, ReadyAPI, Groovy scripting, and Citrus or similar automation frameworks.
Added 15 mins ago
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Software Engineer, Growth
Otter.ai
Mountain View, CA
- $155,000 to $185,000 USD / year
Added 15 mins ago
AF
Support Engineer - 6560285
Accenture Flex LLC Company
United States
- $37 to $47 USD / hour
Added 15 mins ago
Senior Web Developer
Accenture LLP Company
NY
Integrate applications with REST, GraphQL, backend-for-frontend (BFF), and other API architectures.
Added 20 mins ago
Staff Machine Learning Engineer - Commerce & Growth Intelligence
Apple
Cupertino, CA · San Francisco, CA
Strong programming and software engineering skills, including system design, API design, testing, and debugging complex software.

Fidelity Technology Group, LLC

Principal Mobile Developer

Westlake, TX, United States

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Job details

Apply by: Dec 15, 2026
Posting language: English
Posted: Nov 4, 2026

Original job description

Fidelity will not provide immigration sponsorship for this position.

Job Description:

Position Description:

Develops and enhances full stack web applications and native mobile applications using Test Driven Development (TDD) and automated testing to ensure stability, resilience, and strong code coverage. Builds native iOS applications using Swift and SwiftUI, and native Android applications using Kotlin and Compose. Designs and implements scalable back-end services, RESTful Application Programming Interface (APIs), and microservices architecture. Executes end-to-end releases with automated Continuous Integration/Continuous Delivery (CI/CD) pipelines using Jenkins and platform specific tooling for web and mobile deployments. Works with architecture, security, and User Experience (UX) design teams to deliver compliant, accessible, and user friendly solutions aligned with Web Content Accessibility Guidelines (WCAG), Apple Human Interface Guidelines, and Material Design. Supports efficient engineering practices, including trunk-based development, feature toggles, and branch by abstraction, using CI/CD and testing tools. Develops back-end systems using cross platform knowledge, API design, and security best practices including OAuth (Open Authorization) and OpenID Connect, and Amazon Web Services (AWS) Elastic Compute Cloud (EC2), Lambda, DynamoDB, and Simple Storage Service (S3). Applies engineering best practices and security standards to ensure quality, maintainability, and compliance.

Primary Responsibilities:

Designs, develops, and maintains full-stack features across back-end and native mobile platforms (iOS and Android).
Coordinates end-to-end feature development from concept through production deployment, taking ownership of technical decisions across the entire stack.
Builds and maintains scalable microservices and RESTful/GraphQL APIs that support web and mobile application functionality.
Develops comprehensive documentation for multiple applications or subsystems.
Plans and coordinates project schedules and assignments for multiple technology initiatives.
Advises on risk assessment and risk management strategies for engineering projects.
Provides technology solutions to daily issues and delivers technical evaluation estimates for upcoming initiatives.
Mentors junior team members.
Contributes to technical roadmap planning and advises senior management on technical strategy.
Monitors application performance, troubleshoots issues, and implements optimizations across the technology stack.
Researches and evaluates advancements in self-custody crypto wallet encryption to inform design decisions, enhance security controls, and ensure alignment with emerging standards.

Education and Experience:

Bachelor’s degree in Computer Science, Engineering, Information Technology, Information Systems, or a closely related field (or foreign education equivalent) and five (5) years of experience as a Principal Mobile Developer (or closely related occupation) developing native mobile applications for iOS and Android and integrating them with back-end APIs, within an Agile and DevOps environment.

Or, alternatively, Master’s degree in Computer Science, Engineering, Information Technology, Information Systems, or a closely related field (or foreign education equivalent) and three (3) years of experience as a Principal Mobile Developer (or closely related occupation) developing native mobile applications for iOS and Android and integrating them with back-end APIs, within an Agile and DevOps environment.

Skills and Knowledge:

Candidate must also possess:

· Demonstrated Expertise designing scalable backend services and microservices architecture using Node.js, NestJS, or GraphQL; and building RESTful or GraphQL APIs with authentication and authorization mechanisms (OAuth and OpenID Connect) that support web or mobile experiences, while ensuring security, performance, and maintainability across distributed systems. · Demonstrated Expertise performing native iOS mobile application development and testing using XCUITest, XCTest, Swift, SwiftUI, Objective-C, UIKit, and reactive programming with Combine, within mobile specific VIPER or MVVM architecture patterns, and in alignment with Apple Human Interface Guidelines and the full App Store application lifecycle and release process. · Demonstrated Expertise performing native Android mobile application development and testing using Espresso, JUnit, Kotlin, Compose, Java, XML layouts, and reactive programming with Coroutines, within Clean Architecture patterns and in an environment that supports the full application lifecycle and release process for the Google Play Store; and creating performant and accessible user experiences aligned with Material Design Guidelines and Google Play guidelines. · Demonstrated Expertise performing technical solutioning, implementation support, and code review activities using backend and mobile development technologies, peer mentorship practices, estimation and requirement-refinement tools, and cross-functional collaboration methods within an Agile environment that includes sprint planning, iterative development cycles, coordination with product managers and stakeholders across multiple business units, and alignment between business requirements and technical execution. #PE1M2

Fidelity’s Onsite Working Model Fidelity is transitioning to a full-time onsite working model through a phased rollout across regions and roles. Currently, some roles and locations require 100% onsite presence, while others require less. Onsite expectations are likely to evolve as the rollout continues. This transition does not apply to fully remote roles.

Certifications:

Category:

Information TechnologyPlease be advised that Fidelity’s business is governed by the provisions of the Securities Exchange Act of 1934, the Investment Advisers Act of 1940, the Investment Company Act of 1940, ERISA, numerous state laws governing securities, investment and retirement-related financial activities and the rules and regulations of numerous self-regulatory organizations, including FINRA, among others. Those laws and regulations may restrict Fidelity from hiring and/or associating with individuals with certain Criminal Histories.

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More about this job

Skills

Test automation
Swift
Kotlin
ICT system programming
Microservices Architecture
CI/CD
Jenkins
ICT accessibility standards
API development
AWS
Amazon DynamoDB
Security regulations
Regulatory compliance
Microservices
GraphQL
Documentation
Hazard assessment
Risk management
Computer science
Computer technology
Node.js
Objective C
JUnit
Oracle Java
Mobile development
Estimating
Collaboration
Iterative development
Securities

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