Senior Security Engineer

Our Engineering Standards at Karbon:

Balance Speed and Quality

Engineers are expected to balance delivery speed with a strong commitment to quality, meeting agreed timelines while producing reliable, maintainable, and well-tested solutions. Sound judgment in making trade-offs between velocity and long-term sustainability is essential.

Collaborate Effectively

Engineering is collaborative by default. Team members are expected to contribute constructively in design discussions, reviews, and planning, communicate clearly about progress and risks, and support shared team outcomes in both hybrid and distributed environments.

Build and Maintain Systems

Engineers are responsible for building new capabilities while maintaining and improving existing systems. This includes designing scalable solutions, reducing technical debt, supporting operational stability, and contributing to continuous improvement.

Operate with Autonomy

A high degree of autonomy is expected. Given clear objectives, engineers should independently translate problems into actionable technical approaches, proactively identify improvements, and continuously expand relevant technical expertise.

Ownership and Accountability

Ownership is fundamental. Engineers are accountable for the quality, performance, and customer impact of their work from design through post-release support, and are expected to follow through on commitments.

AI-Enabled Engineering

AI is reshaping how software is built, and we are committed to leveraging it as a force multiplier for creativity, impact, and capability. Engineers are expected to confidently apply strong technical fundamentals while embracing AI tools and approaches to enhance productivity, problem-solving, and innovation. Curiosity, adaptability, and enthusiasm for integrating AI into meaningful product development are essential.

Contribute to Team Culture

Engineers contribute positively to a culture of professionalism, transparency, low bureaucracy, and mutual respect, strengthening team performance through authenticity, curiosity, and collaboration.

About the Role! 

Seeking a development & cloud focused Senior Security Engineer to join our expanding security team.

The ideal candidate will have passion for AppSec, Cloud and AI. They will be a skilled communicator and relationship builder capable of promoting and building security practices across the organization and into our development processes.

AI is reshaping practices across the board and at Karbon we’re fully committed. We don’t see AI as a replacement but as a force multiplier. We’re looking for Security Engineers who are confident in network & security fundamentals, driven to grow, and excited by the challenges and opportunities AI brings.

What You’ll Own:

• Partner with different areas within Karbon - You will make sure security is embedded from the start from feature design and development to participating in design reviews and threat modelling.
• Balance Security and Delivery - You know how to balance delivery needs with security and can communicate security risks and issues to non technical stakeholders. You understand when it's important to push back, when to compromise and how to work with delivery teams to reach a great outcome.
• You keep up to date on the latest technologies and approaches - You are excited by the new developments such as AI bring to security but also understand the importance of security foundational practices such as good account hygiene, least privilege, attack surface reduction and MFA.
• Identify and assess security risks introduced by AI tools - You’ll assist with reviewing the risks of AI tooling usage & Integration and AI-generated code.
• Apply AI-assisted tooling to accelerate security work - you understand the impact AI can have and utilize it across many areas including triage, threat detection, code review, and documentation.
• Flexibility and confidence to work across multiple security domains - We’re a small team responsible for Security at a fast moving company and you’ll get exposure to many different security domains; you could be assisting with refining and investigating corporate IT security processes in the morning, reviewing a cloud hosted system after lunch and then tweaking detection rules!
• Work effectively as part of a team - Security is a team sport and you understand the need to build relationships and trust across the organization to enhance Karbon’s security posture. You are happy to answer questions and offer advice to teams that will reach out for your assistance.
• Own your work - You take pride in your work, feeling a deep sense of responsibility for the products we develop and ensuring we keep our customers' valuable data secure. This sense of ownership is paramount, and you share this commitment.
• Bring your passion and personality - Your creativity, curiosity, and authentic self make the team stronger. If you've worked in highly political environments, you'll find our culture, free from office politics and valuing openness and authenticity, a refreshing change.
• Help us measure improvement and steer our roadmap - Contribute to Security Metrics so we can track progress and feedback into our roadmap.

What Sets You Apart

4+ years experience in a security or development role across most of the following:

• Collaborating with teams to review designs & implementations for security issues and embedding good security practices across software development
• Triaging issues and reports, assisting teams to remedy items and testing fixes
• Working with external penetration test companies to validate and prioritize findings
• Conducting risk and vulnerability assessments of web applications and APIs and third party suppliers and integrations
• Configuring and tuning SAST, SCA and DAST Tooling
• Working with build/deployment pipelines to incorporate security tooling (Github Actions or Azure Devops YAML based pipelines)
• Assisting with implementing security focused alerting and detections and automations
• Conducting and facilitating organizational & developer focused security training
• Assisting with operational security items such as EDR alerts and MDM
• Contributing to our security roadmap

In addition you’ll need:

• Strong communication skills (spoken and written) 
• Some of the following Languages/Frameworks: Microsoft .NET/C#, JavaScript (we use React and EmberJS frameworks and, Python)
• At least one cloud platform: Azure, AWS or GCP (we use Azure predominantly)
• Working knowledge of PowerShell or Bash and Python
• Working knowledge of at least one AI development tool e.g. Claude Code, GitHub Co-Pilot etc
• Portswigger Burp or similar
• Certifications such as Offsec OSCP & AWAE, GIAC, Burp Practitioner, PJPT, Microsoft/AWS development and cloud related are nice to have
• Experience with securing AI applications, systems and AI tooling would be highly regarded

Why Work at Karbon?

• Gain global experience across Australia, New Zealand, UK, and Canada
• Strong benefits package including:
• Flexible Time Off with an encouraged 4 weeks use per year
• Company paid medical for you and eligible spouse/partner and dependents
• Paid dental and vision and eligible spouse/partner and dependents
• 401(k) with company matching
• Flexible Spending Account
• Up to 8 weeks paid parental leave
• Work-from-home stipend
• Work with (and learn from) an experienced, high-performing team
• A collaborative, team-oriented culture that embraces diversity, invests in development and provides consistent feedback
• Be part of a fast-growing company that firmly believes in promoting high performers from within

Required:

• 3+ in Windows desktop application development using Windows App SDK, WinUI (or similar), C#, XAML — and ideally additional experience with native Windows code (C++, Win32/WinRT/COM).
• Deep understanding of Windows application architecture, including interop between managed code (.NET) and native code.
• Proven track record of designing, building, and shipping production-quality desktop applications, with an emphasis on reliability, performance, scalability, and maintainability.
• Strong experience with accessibility APIs on Windows (e.g. Microsoft UI Automation or similar), and a dedication to building accessible and inclusive software.
• Excellent software engineering fundamentals: OOP, design patterns, data structures, algorithms, memory management, multi-threading or asynchronous programming (where relevant).
• Experience leading technical design, mentoring other engineers, conducting code reviews, and making architecture-level decisions.
• Strong communication skills; ability to articulate tradeoffs, collaborate with cross-functional teams, and drive consensus.
• A user-centric mindset: focus on building polished, intuitive, and accessible experiences for end users.

Preferred / Bonus:

• Experience with writing automated tests for UI — unit tests, integration tests, UI automation tests; familiarity with relevant testing frameworks.
• Experience with performance optimization for desktop apps (memory usage, startup time, rendering performance, high-DPI support, responsiveness under load).
• Experience with localization/globalization, right-to-left UI support, internationalization, accessibility for multiple regions.
• Familiarity with telemetry, analytics, crash reporting, logging, and error monitoring in desktop applications.
• Previous experience in shaping CI/CD workflows, release pipelines, and deployment strategies for desktop applications.
• Demonstrated ability to take ownership of feature areas or modules and drive them long-term, including maintenance, refactoring, and technical debt management.

What we offer

• A high-impact role: you will define architecture, shape the future of our Windows product, and directly influence what millions of users see and experience.
• A collaborative, flat-structure engineering culture — you are not just a coder, but a builder and a decision-maker.
• Opportunities to lead — mentor others, steer technical direction, and grow into broader technical leadership (e.g. Tech Lead, Architect).
• Flexibility, autonomy, and responsibility: you define how to solve problems, own features end-to-end, and contribute to long-term product vision.
• A purpose-driven mission: building software that’s reliable, accessible, and user-centered — making a real difference for people.

The United States Based Salary range for this role is: 140,000-200,000 USD/Year + Bonus + Stock depending on experience             

Think you’re a good fit for this job? 

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Refer them! 

Speechify is committed to a diverse and inclusive workplace. 
Speechify does not discriminate on the basis of race, national origin, gender, gender identity, sexual orientation, protected veteran status, disability, age, or other legally protected status.

Overview:

As a Senior Staff Software Engineer at Sagent, you will play a key role in the development and enhancement of our software solutions. Leveraging your extensive experience and theoretical knowledge base, you will lead initiatives to design, develop, test, debug, and implement software that powers our computers and technologies. Additionally, you will be responsible for determining software application design requirements, ensuring the successful implementation of software improvements, and generating software engineering policies, standards, and procedures.

Your day-to-day at Sagent:

Software Development:

• Design, develop, test, and maintain scalable, secure, and high‐performance applications using Java, .NET Core, Node.js, SQL Server, and React Redux
• Build and deploy Microservices‐driven and Event‐Driven Architectures to improve system modularity, scalability, and responsiveness
• Develop and manage APIs and integrations, including RESTful services
• Leverage Azure and GCP for application hosting, cloud services, deployment, and scaling (including Function Apps and Blob Storage)
• Integrate MongoDB and other data stores to support both relational and NoSQL use cases
• Incorporate BPM tools and Rules Engines to implement workflow orchestration and business logic

Implementation and Monitoring:

• Troubleshoot, debug, and optimize existing applications to improve performance and reliability
• Implement unit and integration testing to ensure high code quality and system stability
• Ensure the successful implementation and monitoring of software application improvements to increase efficiency and effectiveness.

Policy and Procedure Generation:

• Generate software engineering policies, standards, and procedures to ensure consistency and quality across software development efforts.

Technical Leadership:

• Provide guidance and mentorship to junior team members, leveraging your technical expertise to support their professional development.

Cross-functional Collaboration:

• Collaborate closely with product, architecture, DevOps, and other cross‐functional teams to define, design, and deliver new features.

We would love to hear from you if you have:

• Bachelor’s degree in Software Engineering, Computer Science, or relevant discipline with 4 - 6 years of experience in a related field. Experience will be considered in lieu of a degree.
• Minimum of four years of experience in software engineering roles, with a focus on designing, developing, testing, debugging, and implementing software solutions.

Strong hands‐on expertise with:

• SQL Server
• Java
• .NET Core
• js
• React Redux
• Microservices architecture
• Practical experience with cloud platforms, specifically Azure and GCP
• Experience working with MongoDB, BPM tools, Rules Engines, Function Apps, and Blob Storage
• Solid understanding of modern software development methodologies, best practices, and design patterns
• Strong analytical, problem‐solving, and debugging skills
• Demonstrated expertise in software application design and development, with the ability to translate business requirements into technical specifications.
• Proven track record of successfully implementing software application improvements to increase efficiency and effectiveness.
• Strong analytical and problem-solving skills, with the ability to identify and address complex technical challenges.
• Experience in generating software engineering policies, standards, and procedures is preferred.Familiarity with all aspects of software development, from detailed programming to high-level architecture design, is advantageous.

Additional Skills Preferred:

• Experience with CI/CD pipelines and DevOps practices
• Familiarity with Docker, Kubernetes, or other containerization/orchestration technologies
• Experience working in Agile/Scrum development environments
• Knowledge of distributed systems, event streaming, and scalability patterns

#LI-AN

#LI-REMOTE

Lantern is seeking a Senior Software Engineer to join our healthcare technology team and help shape the future of our platform. In this role, you will drive technical innovation, design and build robust Python-based microservices, and maintain existing C# .NET applications as we transition toward a modern, scalable architecture. You’ll work across the full stack—building secure APIs, developing intuitive frontends, and delivering cloud-native solutions that improve the lives of patients and healthcare providers.

The ideal candidate is a hands-on engineer and technical leader who promotes a culture of knowledge sharing, collaboration, and continuous improvement. You’re comfortable working across domains, partnering with Product, and other stakeholders, and navigating ambiguity to make pragmatic architectural decisions. We value engineers who take ownership, communicate clearly, and are eager to mentor others while raising the technical bar.

At Lantern, we thrive on solving complex challenges and reimagining how healthcare is delivered. We’re looking for someone who brings creativity, curiosity, and a passion for building scalable, maintainable systems—along with a strong sense of teamwork, delivery focus, and a genuine enthusiasm for improving healthcare through technology.

Location: Hybrid - at least 3 days/wk in one of our offices:  Dallas, TX (preferred) / Chicago/Evanston / New York / Washington, DC

Responsibilities:

• Design and implement robust backend solutions using Python (FastAPI, Django, or Flask) and contribute to .NET (C#) systems during the ongoing platform transition.
• Develop, document, and maintain secure RESTful APIs for integration with internal applications, third-party services, and mobile platforms.
• Build and maintain responsive frontends using React or Angular, tailored for care advocates and patient-facing applications.
• Leverage cloud platforms (Azure, AWS) to develop scalable, high-availability solutions using cloud-native services such as functions, messaging queues, storage, and managed databases.
• Maintain CI/CD pipelines in co-ownership with infrastructure team to support continuous delivery and infrastructure automation with tools like Azure DevOps or GitHub Actions.
• Collaborate closely with Product, and QA teams to define technical requirements and ensure regulatory alignment.
• Participate in system architecture design, peer code reviews, and sprint planning to drive high-quality engineering outcomes.
• Mentor junior developers and contribute to internal technical standards, documentation, and best practices.

Requirements:

• Bachelor’s degree in Computer Science, Engineering, or equivalent experience
• A minimum of 5 years of experience in software development, with strong proficiency in Python and working knowledge of .NET (C#) for maintaining legacy systems.
• A minimum of 5 years of experience building secure, scalable REST APIs and backend services.
• Solid understanding of relational databases such as Microsoft SQL, PostgreSQL, or MySQL.
• Experience writing unit and integration tests using frameworks such as PyTest, xUnit, or Jest to ensure code quality and maintainability.
• Familiarity with OAuth 2.0 authentication and authorization flows.
• Strong experience with cloud platforms like Azure or AWS, including serverless and containerized services.
• Excellent problem-solving and analytical skills, with a proactive approach to modern design and development practices.
• Familiarity with healthcare data standards (FHIR, HL7, X12) and HIPAA-compliant environments is a plus
• Experience working within Agile/Scrum methodologies.

Benefits

• Medical Insurance
• Dental Insurance
• Vision Insurance
• Short & Long Term Disability
• Life Insurance
• 401k with company match
• Paid Time Off
• Paid Parental Leave

Lantern is looking for a Principal Engineer to join our fast-growing Member Experience team. In this role, you will lead the technical direction and ownership of our core member-facing platforms, including our web application, mobile app, and AI-driven chat features. You will be instrumental in architecting scalable solutions that enhance how our members interact with Lantern's services.

Location: Hybrid - at least 3 days/wk in Vancouver, BC Canada

Current Tech Stack:

Web Platform: Angular and TypeScript, with an emphasis on scalable front-end architecture, reusable components, and strong member experience.
Mobile Platform: React Native for member-facing mobile experiences.
Backend and APIs: .NET / C# services that power core member workflows and integrations.
Styling and UI: Tailwind CSS and NativeWind for consistent, modern interface development.
Cloud Infrastructure: Microsoft Azure for cloud services, hosting, integration, and operational support.

Responsibilities:

• Platform Ownership: Lead the development and end-to-end ownership of member-facing web, mobile, and AI chatbot experiences.
• Architectural Leadership: Define and maintain technical standards for front-end architecture, shared patterns, performance, accessibility, and long-term maintainability.
• Cross-Platform Integration: Drive a pragmatic strategy for reusable business logic, design consistency, and seamless experiences across web and mobile platforms where it adds value.
• Backend and Cloud Collaboration: Partner closely with engineers working in .NET / C# and Microsoft Azure to deliver secure, reliable, observable, and scalable solutions.
• AI and Member Experience: Help shape AI-enabled chat and support capabilities that improve navigation, engagement, and service for Lantern members.
• Mentorship: Act as a technical pillar for the engineering organization by mentoring engineers, leading design reviews, and guiding complex implementation decisions.

Requirements:

• Work Experience: Extensive years of professional software engineering experience, preferably with at least 2+ years operating at a Staff, Principal, or equivalent technical leadership level in product-focused environments.
• Front-End Expertise: Deep expertise in TypeScript, React, and modern front-end architecture, with the ability to operate effectively in environments that also include Angular.
• Mobile Expertise: Proven experience building and supporting production-grade applications using React Native.
• Backend and Cloud Fluency: Strong experience partnering with backend teams working in .NET / C# or Node.js and building solutions that run on Microsoft Azure.
• Design Systems and UI: Hands-on familiarity with Tailwind CSS and/or NativeWind, reusable component patterns, and high-quality user experience implementation.
• Preferred Skills: Experience building or integrating AI / LLM-powered product features such as chat, guided workflows, copilots, or search-driven experiences.
• Domain and Collaboration: Excellent communication skills and the ability to influence across engineering, product, design, and business stakeholders.
• Education: Bachelor's degree in Computer Science, Engineering, or equivalent professional experience.

Strong Candidates Will:

• Be Product-Minded: Understand the member and business impact behind technical decisions, not just the implementation details.
• Balance Strategy and Execution: Move comfortably between architecture, hands-on problem solving, and delivery support.
• Create Clarity: Bring structure to ambiguous problems, align stakeholders, and move important work forward with sound judgment.
• Lead with Ownership: Raise the bar for quality, collaboration, and engineering excellence across the team.

Benefits:

• Medical Insurance
• Dental Insurance
• Vision Insurance
• Short- & Long-Term Disability
• Life Insurance
• Flexible PTO
• RRSP with company match

Lantern is looking for a Principal Engineer to join our fast-growing Member Experience team. In this role, you will lead the technical direction and ownership of our core member-facing platforms, including our web application, mobile app, and AI-driven chat features. You will be instrumental in architecting scalable solutions that enhance how our members interact with Lantern's services.

Location: Hybrid - at least 3 days/wk in one of our offices:  Dallas, TX (preferred) / Chicago/Evanston / New York / Washington, DC

Current Tech Stack:

Web Platform: Angular and TypeScript, with an emphasis on scalable front-end architecture, reusable components, and strong member experience.
Mobile Platform: React Native for member-facing mobile experiences.
Backend and APIs: .NET / C# services that power core member workflows and integrations.
Styling and UI: Tailwind CSS and NativeWind for consistent, modern interface development.
Cloud Infrastructure: Microsoft Azure for cloud services, hosting, integration, and operational support.

Responsibilities:

• Platform Ownership: Lead the development and end-to-end ownership of member-facing web, mobile, and AI chatbot experiences.
• Architectural Leadership: Define and maintain technical standards for front-end architecture, shared patterns, performance, accessibility, and long-term maintainability.
• Cross-Platform Integration: Drive a pragmatic strategy for reusable business logic, design consistency, and seamless experiences across web and mobile platforms where it adds value.
• Backend and Cloud Collaboration: Partner closely with engineers working in .NET / C# and Microsoft Azure to deliver secure, reliable, observable, and scalable solutions.
• AI and Member Experience: Help shape AI-enabled chat and support capabilities that improve navigation, engagement, and service for Lantern members.
• Mentorship: Act as a technical pillar for the engineering organization by mentoring engineers, leading design reviews, and guiding complex implementation decisions.

Requirements:

• Work Experience: Extensive years of professional software engineering experience, preferably with at least 2+ years operating at a Staff, Principal, or equivalent technical leadership level in product-focused environments.
• Front-End Expertise: Deep expertise in TypeScript, React, and modern front-end architecture, with the ability to operate effectively in environments that also include Angular.
• Mobile Expertise: Proven experience building and supporting production-grade applications using React Native.
• Backend and Cloud Fluency: Strong experience partnering with backend teams working in .NET / C# or Node.js and building solutions that run on Microsoft Azure.
• Design Systems and UI: Hands-on familiarity with Tailwind CSS and/or NativeWind, reusable component patterns, and high-quality user experience implementation.
• Preferred Skills: Experience building or integrating AI / LLM-powered product features such as chat, guided workflows, copilots, or search-driven experiences.
• Domain and Collaboration: Excellent communication skills and the ability to influence across engineering, product, design, and business stakeholders.
• Education: Bachelor's degree in Computer Science, Engineering, or equivalent professional experience.

Strong Candidates Will:

• Be Product-Minded: Understand the member and business impact behind technical decisions, not just the implementation details.
• Balance Strategy and Execution: Move comfortably between architecture, hands-on problem solving, and delivery support.
• Create Clarity: Bring structure to ambiguous problems, align stakeholders, and move important work forward with sound judgment.
• Lead with Ownership: Raise the bar for quality, collaboration, and engineering excellence across the team.

Benefits

• Medical Insurance
• Dental Insurance
• Vision Insurance
• Short & Long Term Disability
• Life Insurance
• 401k with company match
• Paid Time Off
• Paid Parental Leave

Transform Your Career

We deliver unparalleled opportunities for growth and career advancement. Our dynamic, entrepreneurial culture supports your journey every step of the way.

Embrace new challenges and deliver real value to some of the world’s most influential Fortune 100 brands, growth companies transforming their industries, and mid-market firms that need help navigating the defining moments of their lifecycle. Work side by side with business leaders to solve complex client challenges and make a true impact. Love what you do as part of a diverse organization committed to collaboration and continuous learning.

THE TEAM – CORPORATE PERFORMANCE MANAGEMENT

Team with fast growing companies and well-known enterprises (both privately held and publicly traded) on a variety of transformational corporate performance management (CPM) projects leveraging OneStream XF.  Team with leaders from across Highspring to provide fully integrated services to support clients in the office of the CFO, CAO, and CIO.

Your Impact

• Lead technical aspects of OneStream engagements, including new implementations and optimization efforts, across the full project lifecycle spanning requirements, design, configuration, testing, deployment, and support.
• Team with the leadership of the firm’s CPM practice helping to set and execute strategy, grow the practice, deepen the alliance relationship with OneStream, amplify our center of excellence, and support staffing and recruiting efforts.
• Support business development pursuits and marketing initiatives, including events, conferences, discovery, demonstrations, and proposal efforts.
• Ensure adherence to Highspring's delivery methodology, approach, standards, tools, and templates, while proactively identifying opportunities and developing solutions for continual improvement.
• Educate internal and external audiences on OneStream XF capabilities and best practices.
• Develop team members through coaching, mentorship, career development activities, and technical training.
• Collaborate with other Highspring services (e.g., target operating model, finance transformation, technical accounting, M&A, etc.) to engage as business partner and advisor to our clients.
• Embrace and embody Highspring's culture, client service principles, and guiding principles.

You Are

Someone who is enthusiastic, entrepreneurial, and motivated.  You’re not afraid to think strategically -and- get your hands dirty.  You’re not only concerned with the success of the project, but you’re building positive relationships with clients along the way. You’re shaping expectations and ensuring the standard of work is in line with promises made.  There are a lot of moving pieces, but you’ve got the work ethic to stay on top of it all.

You are a team-builder and problem-solver. You stay updated on new product enhancements.  You know how to use OneStream to creatively design and implement solutions for your client’s unique challenges.  You know that collaboration is key, so you look for ways to source and share best practices.  If there’s a new way to do something that improves outcomes for clients, you’ll find it.

At a minimum, you will have:

• 3+ years of direct, full life cycle experience implementing or optimizing OneStream.
• 5+ addition years of direct, full life cycle experience implementing or optimizing OneStream and/or other market leading CPM solutions (e.g., Oracle EPM Cloud, Oracle Hyperion, etc.).
• Demonstrated ability to develop technical solutions to empower functional business needs.
• 5+ years of relevant professional services experience.
• Strong understanding of the functional business processes that CPM enables including close, consolidation, reporting, planning, budgeting, and forecasting.
• Strong perspective on CPM best practices.
• Experience with data integration, conversions, and interfaces.
• OneStream business rules and/or .NET and/or VBA and/or SQL experience.
• Experience managing projects, including responsibility for scope, schedule, budget, resource management.
• Proven ability to lead, motivate, and build teams that deliver services and solutions that surpass client expectations.
• Flexibility to travel up to 25%.

Preferably, you will have:

• Bachelor’s and/or graduate degree in finance, accounting, business administration, information systems, IT, or related field.
• Prior functional, industry experience in corporate accounting or financial planning & analysis (FP&A).
• OneStream Certified Professional (OCP) lead architect certification.
• CPA, PMP, CSM, or Six Sigma certifications.

Summary

Join Aperia Solutions, a leader in SaaS solutions for the Payments and Compliance industries. Aperia is a Texas-based fintech and managed consultancy firm that creates custom SaaS applications and other software-based solutions for the payments, banking, and processing industry. Founded in 1999, Aperia offers business intelligence, risk management, compliance, and customer intelligence platforms. With offices in Dallas, Washington DC, and Vietnam, Aperia is a fast-paced, global organization that strives to improve efficiency in compliance, risk, and customer service operations. Aperia is now looking to grow its global footprint by putting roots down in Eastern Europe. After two years of extensive market research and multiple executive visits to the region we have chosen Cracow as our hub for our future growth. Aperia’s clients include banks, processors, payment facilitators, merchant service providers, independent sales organizations, and government entities. A career at Aperia promises a great challenge, culture, and opportunities to forge your own path.

Overview

We are seeking a skilled C# Developer with strong experience in Microsoft Azure, modern cloud‑native development practices, and hands-on support of legacy .NET and ASP applications. This role supports mission‑critical systems in the financial payments industry, where reliability, observability, secure engineering, and disciplined operational processes are essential.

The ideal candidate is equally comfortable diagnosing distributed cloud applications, maintaining older codebases, and executing production‑grade patching and deployment workflows.

Key Responsibilities

Azure Application Development & Support

• Develop, enhance, and support C#/.NET applications deployed in Azure.
• Work extensively with Azure Functions, App Services, Cosmos DB, Storage Accounts, Key Vault, and related Azure services.
• Implement and optimize Azure Diagnostics, including:
  • Application Insights (KQL queries, dashboards, performance analysis)
  • Azure Monitor (alerts, metrics, log analytics)
  • Distributed tracing, dependency tracking, and end‑to‑end transaction visibility.
• Troubleshoot production issues using logs, telemetry, and diagnostic tools to ensure high availability and performance.

Production Support, Patching & Code Fixes

• Own and execute patching, hotfixes, and code-level remediation for production systems.
• Participate in on-call or rotational support for critical financial applications.
• Ensure all fixes follow established SDLC, testing, and deployment processes.
• Collaborate with QA, operations, and compliance teams to validate and release changes safely.

Legacy Application Support

• Maintain and enhance ASP.NET 2.0 WebForms, classic ASP, and other legacy components still in active use.
• Refactor and modernize legacy code where appropriate while ensuring backward compatibility.
• Assist in planning and executing modernization efforts toward Azure-based architectures.

Financial Payments Domain

• Support applications that process sensitive financial transactions with strict uptime, accuracy, and compliance requirements.
• Follow secure coding practices aligned with PCI DSS and industry standards.
• Work closely with compliance and audit teams to ensure system integrity and traceability.

Required Skills & Experience

Technical Skills

• Strong proficiency in C#, .NET Framework, and .NET Core.
• Hands-on experience with:
  • Azure Functions
  • Cosmos DB (SQL API preferred)
  • Azure App Services
  • Application Insights & Azure Monitor
  • Azure Diagnostics, logging, and telemetry pipelines
• Solid understanding of Azure fundamentals: networking, identity, resource organization, scaling, and cost management.
• Experience supporting and debugging:
• ASP.NET 2.0 WebForms
• Classic ASP
• IIS-hosted applications

DevOps, Deployment & Code Processes

• Strong familiarity with:
  • Azure DevOps (repos, pipelines, boards)
  • Git (branching, pull requests, code reviews)
  • Infrastructure-as-Code tools such as:
• ARM templates
• Bicep
• Terraform
• Experience deploying applications and infrastructure into Azure using automated CI/CD pipelines.
• Understanding of secure deployment practices in regulated environments.

Soft Skills

• Strong analytical and troubleshooting abilities.
• Comfortable working in a high‑availability, regulated environment.
• Clear communicator who collaborates effectively across engineering, operations, and compliance teams.
• Ability to balance modern development with legacy system stewardship.

Education

• Degree in Computer Science, Statistics, or relevant field

Eligibility Requirements

• Must be willing to submit to a background investigation and drug test as part of the selection process.

Job Type

• Full-Time

Schedule

• Monday to Friday

Work Location

• Dallas, TX
• Required to be in-office 4 days per week

Benefits

• Health insurance 
• Health savings account
• Dental insurance
• Vision insurance
• 401(k) matching
• Life insurance
• Paid time off
• Parental leave
• Disability insurance
• Childcare assistance
• Education reimbursement
• Fitness membership
• Volunteer time off

This job description is not intended to be all-inclusive. An employee may also perform other reasonable related business duties as assigned by their immediate supervisor or management. Principals only.

Recruiters please don't contact this job poster. DO NOT contact us with unsolicited services or offers.

Position Summary

We are looking for a skilled, hands-on senior engineer to build and maintain the core infrastructure and backend services that power our trading platform. You will work on systems where performance, correctness, and uptime are fundamental - not afterthoughts.You write clean, efficient C# and Go, take pride in the quality and reliability of your work, and are comfortable owning complex backend problems from design through production. You have a strong instinct for identifying risk before it becomes an incident, and you bring the kind of engineering discipline that high-stakes, real-time financial systems demand.

Key Responsibilities

• Design, build, and maintain backend services and platform infrastructure in C# and Go, with a focus on performance, reliability, and correctness.
• Own backend components end-to-end - from architecture and implementation through testing, deployment, and on-call support.
• Proactively identify and address technical debt, performance bottlenecks, and reliability risks before they become production incidents.
• Collaborate with the platform tech lead and other engineers on system design, code reviews, and cross-team integration work.
• Contribute to frontend development in React, particularly around platform integrations and internal tooling.
• Write and maintain comprehensive tests, documentation, and runbooks to support operational excellence.
• Participate actively in on-call rotation - owning issues through to resolution and contributing to post-incident reviews.

Qualifications

Required

• Strong C# development skills - solid understanding of the .NET ecosystem, async/await patterns, and performance optimization with modern C# idioms (.NET 6+).
• Hands-on experience building and maintaining backend or platform systems in production environments.
• Experience with low-latency or high-throughput systems, particularly in financial, trading, or data-intensive domains.
• Strong understanding of databases including schema design, query optimization, and transactional integrity (PostgreSQL, MySQL, or similar).
• Experience with RESTful API design, WebSockets, and asynchronous/event-driven architectures.
• Proficiency with CI/CD pipelines, automated testing strategies, and modern DevOps tooling.
• Frontend awareness - comfortable working across the stack, reviewing or contributing to React-based frontend work.
• Reliable and dependable - you follow through, communicate proactively, and treat your commitments seriously.
• Strong communication skills; able to collaborate effectively across engineering and product.

Preferred

• Familiarity with functional programming paradigms - comfortable applying immutability, pure functions, and composition patterns to write more predictable, testable code.
• Proficiency in Go - comfortable writing production-grade services and APIs.
• Experience with React or modern frontend frameworks - able to contribute to platform tooling and interfaces.
• Familiarity with Python for scripting, tooling, or data processing.
• Experience with Kubernetes and container orchestration in production environments.
• Background in trading, futures, prop trading, or fintech - you understand the domain and its performance expectations.
• Familiarity with distributed systems patterns: message queues (Kafka, RabbitMQ), caching strategies (Redis), and service-to-service communication.
• Exposure to observability tooling: Prometheus, Grafana, structured logging, and distributed tracing.
• Experience working in multi-team engineering organizations with shared platform dependencies.

Position Summary

We are looking for a seasoned, hands-on engineer to lead platform and backend engineering on our trading infrastructure. You will serve as the technical authority for a high-performance, low-latency trading platform - owning architecture decisions, setting engineering standards, and driving the work that keeps critical systems reliable and fast.You thrive in environments where microseconds matter, correctness is non-negotiable, and the team looks to you not just for technical direction but for the clarity and confidence to execute against it. You are pragmatic, opinionated, and comfortable operating at the intersection of systems engineering, financial technology, and cross-functional product delivery.

Key Responsibilities

• Serve as the technical lead for platform and backend engineering - owning architecture decisions, setting development standards, and coordinating across engineering, product, and business stakeholders.
• Design, build, and maintain high-performance, low-latency backend systems and trading infrastructure in C# and Go, with a relentless focus on throughput, reliability, and correctness.
• Define and enforce engineering best practices across the team, including code quality standards, testing strategies, and deployment processes.
• Proactively identify and address technical debt, performance bottlenecks, and reliability risks before they become production incidents.
• Mentor and develop engineers - providing constructive technical guidance, supporting career growth, and helping others expand their scope of ownership.
• Collaborate with frontend engineers to deliver cohesive platform features, and contribute directly to React-based tooling and interfaces when needed.
• Be a dependable presence on-call and in production - owning issues through to resolution and documenting learnings as repeatable processes.
• Drive cross-team alignment on platform capabilities, dependencies, and roadmap priorities.

Qualifications

Required

• Expert-level C# development skills - deep understanding of the .NET ecosystem, async/await patterns, performance optimization, and modern C# idioms (.NET 6+).
• Demonstrated experience leading technical architecture for backend or platform systems - producing clear, defensible design decisions with trade-off analysis.
• Hands-on experience with low-latency or high-throughput systems, particularly in financial, trading, or data-intensive environments.
• Strong proficiency with systems-level debugging, profiling, and performance tuning.
• Experience with RESTful API design, WebSockets, and asynchronous/event-driven architectures.
• Strong understanding of databases including schema design, query optimization, and transactional integrity (PostgreSQL, MySQL, or similar).
• Proficiency with CI/CD pipelines, automated testing strategies, and modern DevOps tooling.
• Frontend fluency - comfortable reviewing, contributing to, or coordinating with React-based frontend work.
• Reliable and dependable - you follow through, communicate proactively, and treat your commitments seriously.
• Strong written and verbal communication skills; comfortable driving alignment across engineering, product, and business stakeholders.

Preferred

• Familiarity with functional programming paradigms - comfortable applying immutability, pure functions, and composition patterns to write more predictable, testable code.
• Proficiency in Go - comfortable writing production-grade services, APIs, and platform tooling.
• Experience with React or modern frontend frameworks - able to contribute to or own frontend platform tooling when needed.
• Familiarity with Python for scripting, tooling, or data processing.
• Experience with Kubernetes and container orchestration in production environments.
• Background in trading, futures, prop trading, or fintech - you understand the domain, the stakes, and the performance expectations.
• Familiarity with distributed systems patterns: message queues (Kafka, RabbitMQ), caching strategies (Redis), and service-to-service communication.
• Exposure to observability tooling: Prometheus, Grafana, structured logging, and distributed tracing.
• Experience operating in multi-team engineering organizations with shared codebases or platform dependencies.