Senior Software Engineer, Back End - Global Payment Network Job at Capital One (Chicago)

Senior Software Engineer, Back End (Global Payment Network)

Senior Software Engineer, Back End (Global Payment Network). Do you love buildin...

Location

United States , Riverwoods; McLean; Chicago

Salary:

147100.00 - 184600.00 USD / Year

Capital One

Expiration Date

Until further notice

Requirements

Bachelor’s Degree
At least 3 years of professional software engineering experience (Internship experience does not apply)
5+ years of experience in at least one of the following: Java, Scala, Python, Go, or Node.js
1+ years of experience with AWS, GCP, Azure, or another cloud service
3+ years of experience in open source frameworks
2+ years of experience in Agile practices
3+ years of experience with Testing Automation

Job Responsibility

Collaborate with and across Agile teams to design, develop, test, implement, and support technical solutions in full-stack development tools and technologies
Share your passion for staying on top of tech trends, experimenting with and learning new technologies, participating in internal & external technology communities, mentoring other members of the engineering community
Collaborate with digital product managers, and deliver robust cloud-based solutions that drive powerful experiences to help millions of Americans achieve financial empowerment
Utilize programming languages like Java, Python, SQL, Node, Go, and Scala, Open Source RDBMS and NoSQL databases, Container Orchestration services including Docker and Kubernetes, and a variety of AWS tools and services

What we offer

performance based incentive compensation, which may include cash bonus(es) and/or long term incentives (LTI)
comprehensive, competitive, and inclusive set of health, financial and other benefits that support your total well-being

Fulltime

New

Staff Software Engineer, Risk

The Risk Platform team at Airwallex is responsible for managing the risk for all...

Location

Singapore , Singapore

Salary:

Not provided

Airwallex

Expiration Date

Until further notice

Requirements

10+ years of back-end engineering experience, including substantial time owning and operating complex, distributed systems in production
Deep experience in risk, fraud, or fintech systems (e.g., payments, banking, trading, or similar high-stakes domains where correctness and reliability are critical)
Strong proficiency in Java, including multi-threading, high-concurrency patterns, performance tuning, and networked service design (I/O/NIO, HTTP/TCP, REST)
Hands-on experience with distributed system design, including event-driven architectures, partitioning/sharding, consistency models, caching strategies, and resiliency patterns
Proficiency with Spring / Spring Boot and build tools such as Gradle or Maven
Practical experience with containerization and orchestration, particularly Docker and Kubernetes, in production environments
Solid understanding of observability and operations: logging, metrics, tracing, dashboards, and incident management for large-scale systems
Ability to lead complex technical initiatives end-to-end, influencing engineers and stakeholders without relying on formal management authority
Strong communication skills, with the ability to explain complex technical topics clearly to engineers, product managers, and non-technical stakeholders
Bachelor’s degree in Computer Science or a related field, or equivalent practical experience

Job Responsibility

Lead the technical direction of core risk services, including real-time detection, decision engines, and risk tooling, ensuring they are reliable, scalable, and cost-efficient under high throughput and low-latency constraints
Design and evolve system architecture for distributed, event-driven risk systems (microservices, streaming pipelines, feature stores, model serving layers) that support global products and regulatory requirements
Own end-to-end delivery of complex initiatives: from high-level design and technical specifications, to implementation, rollout strategies, and continuous improvement
Be deeply hands-on in code and design, writing high-quality production code (primarily in Java/Spring Boot) and driving high-impact design reviews, RFCs, and architecture discussions
Partner closely with the Engineering Manager and Product Manager to shape the roadmap, define technical milestones, and translate business and risk objectives into robust engineering solutions
Champion engineering excellence by defining and enforcing standards for code quality, observability, reliability, security, and performance across the Risk Platform stack
Improve detection effectiveness by working with data and ML teams to integrate models, rules, and features into production systems, and by designing experimentation and evaluation capabilities
Drive operational excellence by improving on-call readiness, incident response, postmortems, SLIs/SLOs, capacity planning, and resilience patterns (graceful degradation, fallbacks, retries, timeouts, backpressure)
Mentor and uplevel other engineers, including senior ICs: provide technical coaching, pair programming, design guidance, and feedback that helps them do the best work of their careers
Collaborate across teams (platform, data, SRE, security, and other product engineering teams) to define clear interfaces, SLAs, and ownership boundaries for shared services and infrastructure

Fulltime

New

Building manager

We are seeking a highly motivated and experienced Facilities Manager to oversee ...

Location

United Kingdom , London

Salary:

55000.00 - 60000.00 GBP / Year

Randstad

Expiration Date

March 03, 2026

Requirements

Mandatory experience managing complex, multi-tenanted commercial properties is essential
Possession of an IWFM / BIFM qualification, or similar professional qualification in facilities management
Proven experience in preparing and managing service charge budgets and complex financial reconciliations
Excellent verbal and written communication skills with demonstrated success in managing diverse stakeholders (occupiers, contractors, clients, and internal teams)
Sound understanding of M&E systems, building fabric, and statutory compliance (e.g., water hygiene, asbestos monitoring)
A strong advocate for change and continuous operational business improvement
Candidates must be eligible to live and work in the UK

Job Responsibility

Serve as the principal point of contact for all facilities-related advice and guidance for occupiers and visitors
Implement and deliver the company's customer experience initiatives to ensure a consistently high level of service across all sites
Ensure all reactive maintenance and day-to-day service requirements are addressed in a timely, cost-effective, and professional manner
Regularly liaise with surveyors and asset managers, informing them of occupier matters that may influence valuation or investment strategy, and monitoring tenant compliance with lease covenants
Manage the financial performance of the properties, including preparing detailed service charge budgets and administering non-recoverable budgets
Monitor agreed budgets, conduct quarterly variance reporting, and manage service charge reconciliation in line with agreed accounting practices
Oversee the procurement of all site supplies and services in alignment with the company's internal procurement programme, ensuring the use of accredited contractors and approved purchase order systems
Monitor and review contractor performance against agreed Service Level Agreements (SLAs) and established quality standards
Establish and maintain stringent Health, Safety, and Environmental (HSE) arrangements in accordance with best practice, regulatory requirements, and the company's comprehensive risk management programme
Work to resolve all risks identified in independent risk assessments and actively participate in internal audit processes and site compliance inspections

!

New

Mechanical Maintenance Engineer

Are you an experienced building services maintenance engineer who has strong Mec...

Location

United Kingdom , City of London

Salary:

42000.00 - 44000.00 GBP / Year

Randstad

Expiration Date

March 04, 2026

Requirements

Mechanically qualified to City & Guilds Level 2 or NVQ (or equivalent)
Min 2 years building services maintenance experience in commercial office environments
Physically fit - able to navigate a high-rise building
Client facing - able to work closely with facility manager for the end client
Candidates must be eligible to live and work in the UK

Job Responsibility

Planned preventative maintenance and reactive maintenance of on-site mechanical plant and plumbing systems
AHUs - fault finding and strip downs
FCUs - fault finding and strip downs
Pumps - Bearings, Mechanical Seals and fault finding
Maintenance/routine checks on sprinkler, fire alarm and emergency lighting systems
Water Treatment (Tap Tests, Dosing, Cooling Tower Checks, etc.)
Chilled and hot Water Systems
Plumbing maintenance
Generators - visual inspections and fault finding
Pressurisation units

What we offer

25 days holiday entitlement + 8 days bank holiday

!

New

Business Services Specialist

Business Services Specialist – Global Tech Client. Are you a master of logistics...

Location

United Kingdom , Birmingham

Salary:

Not provided

Randstad

Expiration Date

April 30, 2026

Requirements

Fluency in English: Professional-level communication is essential for this global role
Organizational DNA: Exceptional attention to detail and the ability to bring order to complex, moving pieces of information
Growth Mindset: A proactive desire to learn, improve performance, and take ownership of your professional development
Collaborative Spirit: A team-first attitude with the ability to work independently under general guidance
Technical Aptitude: Strong Excel skills (data management) and familiarity with the Google Workspace environment are highly preferred

Job Responsibility

Coordinate the Candidate Journey: Schedule and manage complex interviews across multiple time zones for candidates and hiring managers
Data Integrity: Maintain precise records within Applicant Tracking Systems (ATS) and recruitment databases
Strategic Support: Assist with reporting, presentations, and the management of job advertisements
Process Innovation: Actively contribute to continuous improvement initiatives to boost team efficiency
Information Management: Handle high-volume inbox management and ensure strict adherence to data protection standards

New

Sap technical architect - s/4 hana integration

My FMCG client is seeking a SAP Technical Architect / Technical Project Manager ...

Location

United Kingdom , London

Salary:

70000.00 - 90000.00 GBP / Year

Randstad

Expiration Date

March 04, 2026

Requirements

Understanding of SAP integration (CPI/BTP/PI/PO)
Understanding of Architecture principles
Understanding of How systems connect
Hands-on experience with ECC → S/4HANA migration OR Greenfield S/4HANA implementations
Experience managing Integrations
Experience managing Data migration
Experience managing Cutover & hypercare
Ability to speak confidently with architects
Bachelor's degree (BA or BS) is required
Certification in project management (e.g., CAPM, PMP, or Agile certifications)

Job Responsibility

Support enterprise-wide SAP transformation initiatives, with a strong focus on enterprise integrations and finance-led workstreams
Own and deliver complex SAP integration landscapes - Specifically S/4 HANA

!

New

Freelance Senior QS / Change Manager

Freelance Senior QS or Change Manager required for a £90m mixed-use project (Hea...

Location

United Kingdom , City of London

Salary:

450.00 - 525.00 GBP / Hour

Randstad

Expiration Date

March 04, 2026

Requirements

Senior QS from a Tier One or Two main contracting background
Experience running own projects or being a Senior Project/Package QS on major projects
Specialization in Change Management/Variations
Eligibility to live and work in the UK

Job Responsibility

Measure, price, submit and agree Variations on a £90m mixed-use project in Central London

What we offer

Outside IR35 / Limited Company working

!

New

Commissioning engineer

I am recruiting for a Commissioning Engineer to join a leading consultancy I hav...

Location

United Kingdom , London

Salary:

Not provided

Randstad

Expiration Date

February 27, 2026

Requirements

Technical foundation in either mechanical or electrical engineering
Experience in a dedicated commissioning role, specifically on commercial or infrastructure projects
Relevant CSCS card
Professional communication skills for reporting and managing site meetings

Job Responsibility

Oversee and witness the commissioning of mechanical or electrical systems (HVAC, BMS, Power, and Lighting Controls)
Review and manage Commissioning Plans, Method Statements, and Site Progress Reports
Work closely with MEP contractors and clients to resolve technical issues on-site
Ensure all works comply with CIBSE/BSRIA guidelines and specific project requirements
Facilitate the smooth handover of systems to the end-user or FM teams

What we offer

£200 referral fee for successfully placed candidates

!

Senior Software Engineer, Back End - Global Payment Network

Capital One

Location:
United States , Chicago ▼
McLean
Riverwoods

Category:
IT - Software Development

Contract Type:
Not provided

Salary:

Job Description:

Job Responsibility:

Requirements:

Additional Information:

Job Posted:
January 06, 2026

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