CrawlJobs Logo

Staff Software Engineer (Frontend), Infra

harmonic.ai Logo

Harmonic

Location Icon

Location:
United States , New York

Category Icon
Category:
IT - Software Development

Job Type Icon

Contract Type:
Not provided

Salary Icon

Salary:

210000.00 - 280000.00 USD / Year
Save Job
Save Icon
Apply Position

Job Description:

Staff Software Engineer role in Infrastructure team at Harmonic, a startup discovery engine. The team powers the ability to process millions of startup signals in real-time, focusing on making the frontend fast, reliable, and scalable as the company grows.

Job Responsibility:

  • Fix core reliability issues: error boundaries, state management, data consistency
  • Optimize performance: virtualization for large datasets, bundle optimization, render performance
  • Build monitoring and observability to catch issues before users do
  • Establish testing strategies that prevent regressions
  • Create abstractions and patterns that help engineers ship faster without breaking things
  • Drive technical decisions and mentor the team through complex migrations

Requirements:

  • 7+ years building frontend applications at scale
  • Deep expertise in React, TypeScript, and modern build tooling
  • Track record of fixing production performance issues at scale
  • Strong opinions on frontend architecture, backed by experience
  • NYC-based, in office 3 days/week

Nice to have:

  • Experience with discovery systems, search use cases, recommendation systems (CRM, ATS, etc.), or anything that helps index, document, and make data available for use
  • Exposure to venture capital, private markets, or company intelligence data
What we offer:
  • Top of the line health, dental and vision insurance, with 100% premium covered
  • 401k matching
  • Free lunch in office
  • Monthly team dinner for each office
  • Commuter benefits

Additional Information:

Job Posted:
January 20, 2026

Employment Type:
Fulltime
Work Type:
On-site work
Icon
Harmonic - All Job Offers
Job Link Share:
Copy Link Icon
Facebook Icon Twitter Icon LinkedIn Icon

Looking for more opportunities? Search for other job offers that match your skills and interests.

Briefcase Icon

Similar Jobs for Staff Software Engineer (Frontend), Infra

Software Engineer II - Backend

The Engineer II plays a crucial role in developing robust systems and tools to s...
Location
Location
United States
Salary
Salary:
117800.00 - 144800.00 USD / Year
findoctave.com Logo
Octave
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • Minimum of 3 years of experience building robust and scalable backend applications
  • Experience with infrastructure-as-code & continuous deployment in production
  • Experience working with healthcare, healthcare technology, and clinical staff, or other regulated industries
  • Experience with gRPC and Protobuf
  • Experience with relational database systems like PostgreSQL or MySQL
  • Experience integrating and synchronizing data with third party APIs
  • Experience with continuous delivery and troubleshooting production code
  • Solid working knowledge of Python and at least one of its web frameworks
  • Experience developing and deploying enterprise Python applications into production
  • Must be eligible to work in the United States without sponsorship now or in the future
Job Responsibility
Job Responsibility
  • Design, develop, and implement scalable and robust backend systems and APIs using Python
  • Optimize database design, performance, and security to ensure data integrity and efficiency
  • Conduct thorough testing and debugging of backend applications, ensuring high-quality, bug-free software
  • Oversee deployment and maintenance of backend services, ensuring smooth operation and uptime
  • Promote best practices to maintain high-quality codebase and consistently follows stated best practices
  • Develop and maintain technical documentation for backend systems and processes
  • Take ownership of the backend development lifecycle, from concept to testing, deployment, and monitoring
  • Writes correct and clean code, with guidance, that is easily testable, easily understood by other developers, and accounts for edge cases and errors
  • uses comments effectively
  • Can participate in technical design of features with guidance
What we offer
What we offer
  • Equity in the form of stock options
  • company sponsored life insurance, disability and AD&D plans
  • Voluntary benefits such as 401k retirement, medical, dental, vision, FSA, HSA, dependent care and commuter/parking options
  • generous Paid Time Off
  • paid parental leave benefits
  • Fulltime
Read More
Arrow Right
New

Member Engagement Coordinator

About the Role: Our client, a national association, is seeking a Member Engageme...
Location
Location
United States , Washington
Salary
Salary:
28.00 - 33.00 USD / Hour
bhsg.com Logo
Beacon Hill
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • Strong customer service skills with clear, professional communication
  • Excellent attention to detail and organization
  • Ability to manage multiple inquiries and tasks simultaneously
  • Experience using Salesforce or similar CRM systems
  • Comfortable working in Google Workspace (Docs, Sheets, Drive)
  • Reliable, responsive, and able to learn new systems quickly
Job Responsibility
Job Responsibility
  • Serve as a primary customer service contact for conference exhibitors and attendees via email and phone
  • Respond to inquiries related to registration, exhibitor logistics, deadlines, and general conference information
  • Monitor and manage shared inboxes and voicemail to ensure timely, accurate responses
  • Track and escalate complex inquiries to internal teams as needed
  • Provide administrative support to Conference Services and Business Development teams
  • Maintain and update data in registration systems, Salesforce, and shared documents
  • Support exhibitor communications, FAQs, and internal tracking during Annual Meeting prep
  • Fulltime
Read More
Arrow Right
New

Site Manager - Structured Cabling

We are a leading independent technology partner and global integrator, with over...
Location
Location
United Kingdom , Holborn
Salary
Salary:
35000.00 - 45000.00 GBP / Year
jobs.360resourcing.co.uk Logo
360 Resourcing Solutions
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • Experience working in the cabling infrastructure Industry - Specifically within the Data Centers & Commercial Buildings & Offices environment
  • A good understanding of cabling installation practices - cat6/cat6a installations
  • Good understanding of cabling product sets within the financial sector
  • Ability to organise teams on a project
  • Manage and motivate engineers
  • Work well under pressure able to deal with high work load
  • A good level of Microsoft knowledge including Word, Excel, Project, PowerPoint and Outlook
  • Good communication skills both written and oral
  • Be able to communicate effectively with clients to identify needs and requirements
Job Responsibility
Job Responsibility
  • Oversee a team of supervisors and engineers to ensure all cable installations are installed to specification, on time and meet Onnec and Manufacturers quality standards
  • Ensure all current Health & Safety requirements are met, carrying out Risk Assessments, drafting method statements and ensuring all H&S procedures are followed
  • Ensure stock is managed in a cost effective manner and that there are sufficient materials available at all times to ensure efficient installation
  • Order materials as required
  • Compile progress reports as required and / or provide information in a logical format to the Project Manager
  • Carry out quality checks on all works carried out by the cabling engineers and ensure all required Quality Standards are met
  • Read and understand all site drawings, update ‘as and when’ when work is completed
  • Attend and document client meetings and ensure all required actions are carried out in a timely manner
  • Compile process and produce documentation as required to meet company and client standards
  • Draw up patching schedules and ensure timely implementation of any patching requirements
What we offer
What we offer
  • £5kpa car allowance
  • overtime available
  • Fulltime
Read More
Arrow Right
New

Labourer

New Labourer position available at Randstad CPE 01622 357230. The role will invo...
Location
Location
United Kingdom , Herne Bay
Salary
Salary:
13.00 - 15.00 GBP / Hour
https://www.randstad.com Logo
Randstad
Expiration Date
May 14, 2026
Flip Icon
Requirements
Requirements
  • CSCS Card
  • PPE (personal protective equipment)
  • Candidates must be eligible to live and work in the UK
  • eye for detail
Job Responsibility
Job Responsibility
  • working on a busy new build construction site and have a wide variety of duties from clearing materials, unloading deliveries, checking safety systems are secure and assisting trades
  • Fulltime
!
Read More
Arrow Right
New

Quantity Surveyor

If you are a Project QS who is looking for a clear path progression to Senior Qu...
Location
Location
United Kingdom , Tunbridge Wells
Salary
Salary:
66000.00 - 75000.00 GBP / Year
https://www.randstad.com Logo
Randstad
Expiration Date
May 12, 2026
Flip Icon
Requirements
Requirements
  • Experience working for a Main Contractor as a Quantity Surveyor/ Project Quantity Surveyor is necessary
  • Ability to manage and commercially control multiple projects or packages at one time
  • Experience across a variety of sectors such as Healthcare, Education, Commercial, or Residential is beneficial
  • Good contractual knowledge and negotiation skills
  • Degree or HND in Quantity Surveying or a relevant construction discipline
Job Responsibility
Job Responsibility
  • Reporting to the Commercial Manager
  • Administration and commercial management of projects from procurement to final account, across a variety of sectors (Healthcare, Education, Commercial, Residential)
  • Production of monthly Cost Value Reconciliations (CVRs), financial forecasts, and cost reports
  • Management and negotiation of variations, claims, and final accounts with subcontractors and the client
  • Assisting in the production and issue of commercial notices to both the Client and Subcontractors
  • Working to maintain profit and margin targets across assigned projects
What we offer
What we offer
  • Car + Package
  • Car allowance
  • Bonus
  • Fulltime
Read More
Arrow Right
New

Design Manager

If you are a Design Manager looking for a new opportunity with a well establishe...
Location
Location
United Kingdom , Kings Hill
Salary
Salary:
Not provided
https://www.randstad.com Logo
Randstad
Expiration Date
May 12, 2026
Flip Icon
Requirements
Requirements
  • Experience working for a Tier 1/2 Main Contractor as a Design Mangager
  • Deliver a project from Design onto site until handover
  • Experience working on similar projects (Education, Healthcare and Commercial) for projects valued £10m-£20m
Job Responsibility
Job Responsibility
  • Management and delivery of design information in accordance with the agreed design programme and deliverable schedule
  • Ensuring that appointed design consultants carry out their duties in line with their appointment, interrogating returns to ensure compliance with standards and brief
  • Ensuring your team deliver on their package for the overall benefit of the project
  • Design input at both preconstruction and construction stage of projects
  • The production of design programmes, design scopes, design responsibility matrices, appointments, schedules
  • Attending/chair necessary meetings and workshops with internal and external stakeholders
Read More
Arrow Right
New

Site Agent

We are seeking an experienced and highly motivated Site Agent to lead an ongoing...
Location
Location
United Kingdom , Folkestone
Salary
Salary:
Not provided
https://www.randstad.com Logo
Randstad
Expiration Date
May 14, 2026
Flip Icon
Requirements
Requirements
  • BEng in Civil Engineering or equivalent experience
  • SMSTS, CSCS (Black Card preferred), and First Aid at Work
  • Proven track record as a Site Agent on general civils schemes (Value £5m+)
  • Experience with coastal, water, or heavy infrastructure projects is a significant advantage
  • Strong leadership skills, commercial awareness, and the ability to manage complex logistics in a rural/coastal setting
Job Responsibility
Job Responsibility
  • Manage daily site operations, including subcontractors, labor, and plant coordination
  • Maintain rigorous safety standards (RAMS), ensuring full compliance with CDM 2015 regulations
  • Interpret drawings, manage the RFI process, and ensure quality control across earthworks and drainage
  • Work closely with the Project Manager to update the 2-week look-ahead and ensure the master programme stays on track
  • Act as the primary point of contact for the client, local authorities, and environmental agencies
What we offer
What we offer
  • Paid Holiday (Optional)
  • Pension Scheme
  • Access to site-specific perks, corporate discounts, and professional development support
  • Fulltime
!
Read More
Arrow Right
New

Design Manager

If you are a Design Manager looking for a new opportunity with a well establishe...
Location
Location
United Kingdom , Tunbridge Wells
Salary
Salary:
Not provided
https://www.randstad.com Logo
Randstad
Expiration Date
May 12, 2026
Flip Icon
Requirements
Requirements
  • Experience working for a Tier 1/2 Main Contractor as a Design Mangager
  • Deliver a project from Design onto site until handover
  • Experience working on similar projects (Education, Healthcare and Commercial) for projects valued £10m-£20m
Job Responsibility
Job Responsibility
  • Management and delivery of design information in accordance with the agreed design programme and deliverable schedule
  • Ensuring that appointed design consultants carry out their duties in line with their appointment, interrogating returns to ensure compliance with standards and brief
  • Ensuring your team deliver on their package for the overall benefit of the project
  • Design input at both preconstruction and construction stage of projects
  • The production of design programmes, design scopes, design responsibility matrices, appointments, schedules
  • Attending/chair necessary meetings and workshops with internal and external stakeholders
  • Fulltime
Read More
Arrow Right