Senior Fullstack Software Engineer - Payments & Fraud Job at Hopper (Remote)

Senior Fullstack Software Engineer - Payments & Fraud

Hopper Technology Solutions (HTS) Checkout combines market-leading payment servi...

Location

United States , Austin; Boston; Miami

Salary:

Not provided

Hopper

Expiration Date

Until further notice

Requirements

Senior-level experience & familiarity with React
The ability to effectively drive towards a solution in a thoughtful and creative manner
The ability to work autonomously, iterate on solutions, and manage different contexts
Dealt with ambiguity and can balance building out multiple features at once without jeopardizing the quality of the code

Job Responsibility

Design, build and review code for our HTS Checkout web frontend
Operate autonomously but work closely with your fellow engineers as well as PM to ensure high alignment
Explore engineering improvements for the team and the product
Collaborate cross-functionally with the product team and other Hopper teams

What we offer

Well-funded and proven startup with large ambitions, competitive salary and the upsides of pre-IPO equity packages
Unlimited PTO
Carrot Cash travel stipend
Access to co-working space on demand through FlexDesk AND Work-from-home stipend
Very generous parental leave, much above industry standards
Entrepreneurial culture where pushing limits and taking risks is everyday business
Open communication with management and company leadership
Small, dynamic teams = massive impact
100% employer paid Medical, Dental and Vision coverage for employees
Access to Disability & Life insurance

Fulltime

Senior Fullstack Software Engineer - Payments & Fraud

Hopper Technology Solutions (HTS) Checkout combines market-leading payment servi...

Location

Colombia , Bogotá; Medellin

Salary:

Not provided

Hopper

Expiration Date

Until further notice

Requirements

Senior-level experience & familiarity with React
Ability to effectively drive towards a solution in a thoughtful and creative manner
Ability to work autonomously, iterate on solutions, and manage different contexts
Experience dealing with ambiguity and can balance building out multiple features at once without jeopardizing the quality of the code

Job Responsibility

Design, build and review code for our HTS Checkout web frontend
Operate autonomously but work closely with your fellow engineers as well as PM to ensure high alignment
Explore engineering improvements for the team and the product
Collaborate cross-functionally with the product team and other Hopper teams

What we offer

Well-funded and proven startup with large ambitions, competitive salary and upsides of pre-IPO equity packages
Group medical and dental insurance to full-time employees
Life insurance with short term and long term disability coverage
Access to telemedicine services, anytime, anywhere
Very generous parental leave, much above industry standards
Unlimited PTO
Carrot Cash travel stipend
Flexdesk Access Pass & Work-from-home stipend
Entrepreneurial culture where pushing limits and taking risks is everyday business
Open communication with management and company leadership

Fulltime

Senior Fullstack Software Engineer - Payments & Fraud

Hopper Technology Solutions (HTS) Checkout combines market-leading payment servi...

Location

Spain

Salary:

Not provided

Hopper

Expiration Date

Until further notice

Requirements

Senior-level experience & familiarity with React
The ability to effectively drive towards a solution in a thoughtful and creative manner
The ability to work autonomously, iterate on solutions, and manage different contexts
Dealt with ambiguity and can balance building out multiple features at once without jeopardizing the quality of the code

Job Responsibility

Design, build and review code for our HTS Checkout web frontend
Operate autonomously but work closely with your fellow engineers as well as PM to ensure high alignment
Explore engineering improvements for the team and the product
Collaborate cross-functionally with the product team and other Hopper teams

What we offer

Well-funded and proven startup with large ambitions, competitive salary, upsides of pre-IPO equity packages
Hopper covers the cost of employee premiums for private medical and dental coverage
Hopper also offers private life and accident coverage
generous parental leave, much above industry standards
Access to co-working space on demand through FlexDesk AND Work-from-home stipend
Unlimited PTO
Hopper offers a monthly cash allowances for gym memberships and to cover home-office expenses for a comfortable remote working experience
Carrot Cash travel stipend
Entrepreneurial culture where pushing limits and taking risks is everyday business
Open communication with management and company leadership

Fulltime

Senior Fullstack Software Engineer - Payments & Fraud

Hopper Technology Solutions (HTS) Checkout combines market-leading payment servi...

Location

Netherlands , Amsterdam

Salary:

Not provided

Hopper

Expiration Date

Until further notice

Requirements

Senior-level experience & familiarity with React
The ability to effectively drive towards a solution in a thoughtful and creative manner
The ability to work autonomously, iterate on solutions, and manage different contexts
Dealt with ambiguity and can balance building out multiple features at once without jeopardizing the quality of the code

Job Responsibility

Design, build and review code for our HTS Checkout web frontend
Operate autonomously but work closely with your fellow engineers as well as PM to ensure high alignment
Explore engineering improvements for the team and the product
Collaborate cross-functionally with the product team and other Hopper teams

What we offer

Well-funded and proven startup with large ambitions, competitive salary and the upsides of pre-IPO equity packages
Hopper offers employees enrollment to a Hopper sponsored Health Collective that includes options for basic medical and dental insurances, as well as options for deductibles
Hopper offers private insurance coverage to supplement social security payments attributed to Accidental Death and Long term disability, including Excess and Gap insurances
In lieu of a formal pension plan, Hopper will provide a cash allowance to put towards pension savings
Very generous parental leave, much above industry standards
Unlimited PTO
Flexdesk coworking All Access Pass AND Work-from-home stipend
Carrot Cash travel stipend
Entrepreneurial culture where pushing limits and taking risks is everyday business
Open communication with management and company leadership

Fulltime

New

Project Controls Coordinator III

Under the direction of the Supervisor Project Controls, the Analyst will perform...

Location

Canada , North York

Salary:

55.00 - 58.00 CAD / Hour

Randstad

Expiration Date

June 03, 2026

Requirements

Four Year Degree or combination of education and related experience
Minimum of 5 years of Project Controls or Project Management experience
Project Management professional designation is preferred
Experienced analytical skills including Earned Value Management
An independent worker within a team setting
Demonstrated professional engagement at a high level with work group, stakeholders, and contractors in a team setting
Proficient in the use of SAP, Oracle and MS office suite, intermediate+ Excel skills
Excellent communication, interpersonal, and organizational skills
Ability to effectively manage and prioritize workload, bring issues forward and develop working relationships at all levels of the organization
Detail oriented and understands the importance of data reconciliation

Job Responsibility

Analyze and maintain the project costs at the WBS level including control budget, incurred costs, commitments, and forecast
Provide the project team with accurate and timely cost information and reporting
Perform earned value measurements to anticipate forecast impacts
Perform monthly project close processes and prepare monthly project reports and comparative capital cost estimates for the project in Excel and EcoSys
Prepare and document project change orders timely in accordance with Project Management Office standards
Engage the Project Managers in meetings and discussions to review and reforecast project costs
Review cost transactions to ensure accurate project costs
Communicate with larger Controls team for the project
Liaise with Project Managers and Field Cost Analysts to ensure engagement with the project progress, changes, highlights and issues
Maintain the project Work Breakdown Structure such that it facilitates project execution and cost control during project execution and meets accounting requirements for asset creation and project closeout

Fulltime

New

Mechanical Engineer - Energy Solutions

Join a Team of engineers dedicated to working hand-in-hand with large manufactur...

Location

Canada , North York

Salary:

65.00 - 68.00 CAD / Hour

Randstad

Expiration Date

May 09, 2026

Requirements

Engineering Degree preferred, Chemical or Mechanical Engineering preferred
Membership in Professional Engineers of Ontario or similar professional organization is preferred
Proven skills in: leading and influencing without explicit authority
time management
Ability to work independently but work within team of like-minded professionals
Valid driver’s license with a responsible driving record is needed

Job Responsibility

Identify new contacts and conduct at large manufacturing facilities to for the purpose to arrange site visits
Attend joint-site visits with team members to support in the identification and quantification of potential energy savings projects
Balance multiple priorities: Able to effectively manage time and priorities, consistently delivering in firm annual savings targets
Quantify impact and secure buy-in: Build technical savings calculations, sometimes from scratch, to support project justification and persuade key stakeholders on execution of work
Provide solutions to complex problems: expertly analyze complex operations across various industries and synthesize available information to create solutions equally appealing to business and technical people
Forge long-term customer relationships: build and nurture professional relationships founded on unwavering trust and mutual respect, being a first-choice energy efficiency partner for your customers
Continuous growth and curious mindset: Proactively identify new savings opportunities to drive both short and long-term work and build a sales funnel for sustained growth
Drive results autonomously while thriving in a collaborative environment: Play a supporting role in managing a small group customer base and integrate into, and support broader Team to achieve personal and collective objectives

What we offer

Hybrid Work Model: in-Office (Monday, Tuesday & Thursday) Remote (Wednesday & Friday)

New

Senior Hardware Compliance Designer

Are you an experienced Electrical Engineer with a deep understanding of Electrom...

Location

Canada , North York, Ontario

Salary:

50.00 - 58.00 CAD / Hour

Randstad

Expiration Date

May 09, 2026

Requirements

Bachelor’s degree in Electrical Engineering or an equivalent combination of diplomas and work experience
6 to 10+ years of professional experience in hardware qualification or testing
Excellent knowledge of core EMC concepts, including Cabling, Grounding techniques, and Surge Protection
Demonstrated familiarity with railway (or similar industry) EMC and environmental standards
Proficiency in operating hardware test equipment and simulators used in the qualification process
Professional verbal and effective writing skills to ensure clear, concise, and unambiguous technical documentation and presentations
High degree of professionalism, strong ability to follow directions, use sound judgment, and keep meticulous track of all assigned tasks

Job Responsibility

Leading the hardware qualification, certification, and verification activities for new and revised products from planning through to customer acceptance
Conducting in-depth Electromagnetic Compatibility (EMC) tests on electronic devices according to industry standards (e.g., EN 61000 series, EN 50121 series, FCC, AREMA, MIL standards)
Performing environmental qualification tests (e.g., temperature, humidity, shock & vibration) on signaling electronic devices as per standards like EN 50125 and EN 50155
Participating in troubleshooting EMC-related issues and providing technical data and measurements to the design team
Preparing and driving comprehensive project documentation to customer acceptance, including the EMC Control Plan, EMC Compatibility Study, EMC Hazard Analysis, and EMC Test Report
Preparing hardware environmental qualification plans and reports, understanding the impact of requirements, and providing feedback on different technical approaches
Leading and managing subcontractors for specific on-site EMC measurements
Participating in ISA committee audits related to EMC and environmental requirements
Mentoring and developing junior team members within the department

What we offer

Impactful Work: Lead the qualification process for cutting-edge electronic devices used in safety-critical railway signaling systems
Technical Leadership: Be the in-house expert on EMC and environmental standards, influencing design and compliance strategies
Professional Development: Opportunities to develop junior team members and participate in high-level ISA committee audits
Global Exposure: Work with international standards and lead engagements with external subcontractors and customers for acceptance

Fulltime

New

Customs Compliance Specialist

Are you a trade compliance expert with a specialized background in the aviation ...

Location

Canada , Woodbridge, Ontario

Salary:

30.00 - 45.00 CAD / Hour

Randstad

Expiration Date

May 15, 2026

Requirements

Bachelor’s degree in Supply Chain, International Business, Aviation Management, or a related field (equivalent experience considered)
5+ years of dedicated customs/trade compliance experience, specifically within aerospace, aviation repair, or a high-tech regulated industry
Deep proficiency in EAR, HTS coding, and aviation-specific documentation (8130-3, EASA Form 1, teardown documentation)
Experience with NAV (Microsoft Dynamics) or similar ERP systems for tariff code management is preferred
A U.S. Customs Broker License, CCS, or specialized aviation compliance certification is a significant asset
Strong analytical ability, meticulous attention to detail, and the communication skills necessary to influence cross-functional teams in multiple countries

Job Responsibility

Ensure all aviation parts comply with U.S. Customs (CBP), EAR, FAA, and DOT regulations, as well as Canadian and UK (HMRC) requirements
Maintain expert-level accuracy for HTS codes, ECCN, country-of-origin, and valuation, specifically regarding airworthiness tags (8130-3/EASA Form 1)
Manage inbound consolidations and broker relationships (Expeditors/Freight Boy)
resolve PARs issues, and audit FedEx/broker invoices to minimize duty spend
Manage Item Card tariff codes in NAV
file and track duty recovery disputes
and perform gap analyses to identify process improvements
Serve as the primary point of contact for USCBP, BIS, and Census Bureau
lead internal and external compliance audits and maintain rigorous record-keeping

What we offer

6 month contract with the opportunity to become permanent
Hybrid work environment
Play a pivotal role in a highly regulated international supply chain, acting as a bridge between North American operations and UK-based parent company compliance
Opportunity to spearhead high-value projects, including the exploration of bonded warehouse setups and process automation within your first 120 days
Work within the Aerospace industry that values technical expertise and regulatory mastery

Fulltime

Senior Fullstack Software Engineer - Payments & Fraud

Hopper

Location:
Mexico , Remote

Category:
IT - Software Development

Contract Type:
Not provided

Salary:

Job Description:

Job Responsibility:

Requirements:

Additional Information:

Job Posted:
February 21, 2026

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