Mark Feher

Senior Software Engineer

Los Angeles, California, United States9 yrs 2 mos experience

Key Highlights

  • Boosted design consistency and delivery speed by 40%.
  • Achieved 85% test coverage, cutting QA cycles by 40%.
  • Increased user engagement by 30% through frontend redesign.
Stackforce AI infers this person is a Full-Stack Developer with expertise in SaaS and E-commerce solutions.

Contact

Skills

Core Skills

Software DevelopmentSoftware DesignFull-stack DevelopmentAngularjsReact NativeDatabase ManagementE-commerce DevelopmentMobile Application DevelopmentBackend DevelopmentWeb Application DevelopmentWeb DevelopmentSales ManagementCustomer Relationship Management

Other Skills

Software InfrastructureSoftware Systems EngineeringTypeScriptIonic FrameworkMongoDBHTML5ESLintDatabasesNext.jsExpressPostgreSQLNestJSReactAppSyncDynamoDB

About

As a Software Engineer . . . . . . . I code a bit

Experience

9 yrs 2 mos
Total Experience
2 yrs 2 mos
Average Tenure
1 yr 6 mos
Current Experience

Metwork

Senior Software Engineer

Nov 2024Present · 1 yr 6 mos · United States · Remote

  • Built modular UI components in React/TypeScript, boosting design consistency and speeding up delivery by 40%.
  • Set up CI/CD pipelines with AWS CodePipeline for frontend and backend, reducing release times by 35%.
  • Reviewed pull requests across the stack via GitHub, lowering production bugs by 30%.
  • Wrote unit tests for key components and services, reaching 85% coverage and cutting QA cycles by 40%.
  • Engineered backend logic using AWS AppSync, Lambda (Golang), and DuploCloud, accelerating dev velocity by 35%.
  • Designed scalable DynamoDB data models, ensuring consistent cross-platform data flow.
  • Refactored legacy frontend/backend code to improve load times by 40% and enhance user experience.
  • Partnered with product/design in Agile sprints, enabling 30% faster feature rollouts without sacrificing quality.
Software InfrastructureSoftware DesignSoftware DevelopmentSoftware Systems Engineering

Apb data

Software Engineer

Jan 2024Nov 2024 · 10 mos · Los Angeles County, California, United States · Remote

  • Full-Stack Developer for Cross-Platform Client-Lawyer Connection App:
  • Redesigned the entire frontend of an app built with Ionic, Angular, and TypeScript to enhance user experience and interface, resulting in a 30% increase in user engagement and satisfaction.
  • Developed a cross-platform application using Angular, TypeScript, and Ionic to ensure seamless performance on web, Android, and iOS, leading to a unified user experience and a 25% increase in user retention.
  • Implemented MongoDB for data storage to provide efficient and scalable database solutions, resulting in a 40% improvement in data retrieval times.
  • Optimized application performance by refactoring code and using best practices, resulting in a 50% reduction in load times and smoother user interactions.
AngularJSTypeScriptIonic FrameworkMongoDBFull-Stack Development

Freelance developer

Software Engineer

Feb 2022Dec 2023 · 1 yr 10 mos · Hybrid

  • Worked as a freelance software engineer building full-stack applications for clients across industries including transportation, retail, firearms, wellness, fitness, publishing, and e-commerce.
  • Key Projects:
  • Retail CRM for In-Person Sales – Built a lightweight system using Next.js, Express, and PostgreSQL to log customer purchases and store buyer contact info. Helped small businesses track leads and improve repeat sales.
  • Local Gun Store App – Created a modern e-commerce solution for a firearms retailer using Next.js and PostgreSQL. Included product management, buyer authentication, and secure order tracking.
  • GunOrNot – Tinder-style firearm matching app built with React Native and Expo, powered by a MongoDB backend. Reached 300+ downloads with a 20% engagement rate.
  • Taxi Dispatch Platform – A React Native + NestJS ride-booking app improving dispatcher efficiency by 40% and cutting customer wait times by 25%.
  • Beauty Scheduler – React + AppSync/DynamoDB appointment booking app for salons, reducing no-shows by 35% and boosting bookings by 30%.
  • E-commerce Platforms – Custom-built stores with Stripe payments, JWT-based auth, and React frontends — increasing client revenue by up to 45%.
  • Handled all from database schema design to frontend implementation and CI/CD. Delivered performant, secure, and scalable solutions tailored to business needs.
React NativeHTML5ESLintDatabasesFull-Stack Development

Tecnocasa

Full Stack Developer

Jan 2019Sep 2021 · 2 yrs 8 mos · Budapest, Hungary · Hybrid

  • Streamlined Estate Agent website, resulting in a 30% increase in user engagement and improved browsing experience.
  • Implemented dynamic search functionalities, leading to a 20% increase in property exploration efficiency.
  • Engineered internal system for agents, resulting in 20% faster property oversight and management.
  • Ensured seamless backend-frontend communication, maintaining code integrity and adherence to standards.
  • Collaborated in a cohesive team, fostering excellence and achieving project milestones efficiently.-
MongoDBNode.jsREST APIsReact.jsCascading Style Sheets (CSS)HTML+6

Virgin active

Assistant Sales Manager

Jan 2017Jan 2018 · 1 yr · Greater London, England, United Kingdom · On-site

  • Delivered 9% sales growth, meeting targets via effective team management.
  • Achieved 15% higher lead generation by data-driven strategies and A/B testing.
  • Boosted customer satisfaction by 12% with personalized engagement approaches.
  • Tested and applied lead generation techniques, demonstrating strong data analytics capabilities
People ManagementCustomer ServiceNegotiationRecruitingProblem SolvingCommunication+3

Dexters

Real Estate Agent

Jan 2015Jan 2018 · 3 yrs · Greater London, England, United Kingdom · On-site

  • Contributed to a substantial 17% revenue growth within the letting division, demonstrating a data-driven approach and ability to analyze metrics for achieving positive outcomes.
  • Generated over 10 sales in the first month and achieved an 85% success rate in negotiating property sales
  • Reduced administrative inefficiencies by 10% through better organizing workflow and streamlining the online process, showing an aptitude for process optimization.
Customer Relationship Management (CRM)NegotiationLead GenerationCommunicationSales ManagementCustomer Relationship Management

O2 (telefónica uk)

Assistant Retail Sales Manager

Jan 2013Jan 2015 · 2 yrs · Greater London, England, United Kingdom · On-site

  • Achieved a minimum of 120% of KPI targets for over 12 consecutive months.
  • Cultivated a dynamic and cohesive sales team by adeptly mentoring and motivating individuals, leading to heightened sales figures, boosted staff morale, and a more synchronized and goal-driven sales force.
  • Spearheaded a 20% sales increase within a quarter through efficient performance management strategies.
  • As an Apple brand representative, I ensured outstanding service and sales by staying updated on the latest technologies and conducting regular team meetings.
Customer ServiceSalesProblem SolvingInsuranceCommunicationCustomer Retention+2

Education

Eotvos Lorand Technical High School

High School Diploma — IT System and Application Operations Technician

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