Senior Web Application Penetration Tester Jobs

We are not working with external recruiting partners at this time, please apply directly to the role if you have further interest in joining Vise Engineering at Vise has the unique opportunity to use technology to revolutionize the investment industry. Team members are given ownership and trust with the understanding that they are supported by industry experts and together can build a best-in-class product. We are a small and fast-paced team where everyone has a voice in the development of our product and technology. As a senior full-stack software engineer, you will play a flexible role across our product—working on everything from our core portfolio creation engine to our trading system to our client-facing web application. You will have significant ownership and will have the opportunity to impact everything from requirements gathering and designing systems to implementation, release, and monitoring. This is a high visibility technical leadership role with a tremendous opportunity to impact the company’s trajectory. Please note, this role is primarily onsite, working from our SoHo office. What you will do Lead the implementation of the systems that power and scale our business Uncover and address system bottlenecks as we mature our tech stack Partner with the Product team to provide impactful, measurable and testable solutions for our customers When appropriate, coach and mentor engineers on best practices Advocate for best in class technology and tooling to improve the development experience Contribute to operational excellence What you will bring on Day 1 5+ years of software development experience outside of education and internships Experience with backend and frontend languages. Our stack includes Python, Golang, TypeScript, so direct experience working with these is a big plus. Experience with React and a familiarity with the latest frontend frameworks and tools Experience with relational databases — we use Postgres. Firm understanding of data structu

We’re building a world of health around every individual — shaping a more connected, convenient and compassionate health experience. At CVS Health®, you’ll be surrounded by passionate colleagues who care deeply, innovate with purpose, hold ourselves accountable and prioritize safety and quality in everything we do. Join us and be part of something bigger – helping to simplify health care one person, one family and one community at a time. Position Summary: CVS Health Enterprise Digital seeks to change the way individuals manage their healthcare by focusing on the features that matter to our customers, building software in a modern, lean way, and deploying continuously into the cloud. As part of an engineering team building the Aetna Health website, we help our members effectively find the care they need. What you'll do: The web teams are responsible for building the best experience possible for the millions of members using our Aetna Health website. You will work alongside other engineers and with the product and design teams to consistently deliver new features. You will also work to refactor existing code in order to bring greater stability and scalability for our application as our membership continues to increase. This Senior Web Software Engineer II can expect to design, develop and implements digital solutions and systems by applying advanced technical expertise to architect and code software applications, conduct system testing and debugging, collaborate with cross-functional teams and contribute to the overall technical direction and innovation of digital engineering projects. In any given day you will: Contribute code and tests according to criteria established by our product an

Summary: The Senior SecOps Engineer at Showpad will play a crucial role within the Security Operations team, collaborating with various departments, including Engineering, Product, and other business units. This position focuses on identifying, managing, and mitigating cybersecurity risks, particularly in cloud-native environments, to enhance security capabilities. The ideal candidate will possess solid experience in SecOps practices and a deep understanding of modern security methodologies. Responsibilities: Manage cybersecurity operations, including tasks related to application, hardware, and cloud infrastructure security. Act as the key cybersecurity contact for internal teams regarding daily practices, company-wide initiatives, and the Showpad product. Ensure development teams adopt and implement best practices in software security development. Enable development teams by providing CI/CD processes that integrate security and quality tooling. Manage and improve our CNAPP solution. Oversee and manage cybersecurity operations, ensuring continuous monitoring and protection of cloud infrastructure and applications. Manage and respond to events related to vulnerability programs, endpoint protection, user behavior analytics, firewalls, IDS/IPS, and external threat intelligence. Collaborate with internal teams to ensure security best practices and policies are adhered to across the organization. Develop and maintain security controls and automation strategies within CI/CD pipelines. Monitor and assess risks, manage vulnerabilities, and implement appropriate security measures. Required Skills: Proven experience in information security, with a background in security operations, application security, or related roles. Skilled in identifying, analyzing, and handling phishing attempts and other social engineering threats. Strong knowledge of modern web application security practices and frameworks. In-depth understanding of the Secure Software Development Life Cycle (

📍 Location: Athens, Greece 🏢 Weekly office requirement: Hybrid, 1 day/week, or fully remote 💼 Employment type: Permanent 🪜 Seniority level: Mid-Senior 🌐 Language: All stages of the recruitment process will be conducted in English At GWI we’re always looking for extraordinary people who thrive on making an extraordinary impact. Right now we’re looking for a Senior Security Engineer to play a key role in our Security team in Athens . If that’s you, and making a difference gets you out of bed in the morning, keep reading. It could be the start of something, well, extraordinary. As our Senior Security Engineer you’ll help keep our platform and our customers’ data safe by watching our security tooling closely and acting on what it tells us, as we work towards ISO certification. You’ll join a small security team where you can take initiative and potentially own projects from start to finish. Sounds great, what will I be doing? 🤔 👉 Monitor and triage alerts and logs across our security tools, and take operational action on findings rather than waiting for direction. 👉 Track vulnerabilities end to end, keeping clear records of actions, owners and deadlines across teams. 👉 Help produce the operational evidence for our ISO certification by documenting what we monitor and what we do about it. 👉 Drive decisions on alerts, including web application firewall alerts, working with IT, DevOps, Engineering and Legal. 👉 Contribute to team initiatives, including automating repetitive security work. What do I need to bring with me? 🧳 You’ll need to be able to demonstrate the core skills this role requires. You don’t have to tick all the boxes right away; the important thing is that you’re willing to learn. Here’s what the team will be looking for in you: 👉 Computer Science background: A degree in Computer Science or equivalent practical experience. 👉 Security experience: 4+ years of hands-on experience in security. 👉 Code literacy: You can read code and write scripts to i

Everpure (NYSE: P) has evolved from storage pioneer to data platform, closing fiscal 2026 with $3.7 billion in revenue, its first billion-dollar quarter, and accelerating growth into FY27. Our strategic agenda spans the companies defining the next era of technology - hyperscalers, AI labs, the AI hardware supply chain, data platform providers, and the broader AI ecosystem. This type of work—work that changes the world—is what the tech industry was founded on. So, if you're ready to seize the endless opportunities and leave your mark, come join us. THE ROLE We are looking for a senior analyst who builds. Not someone who specs a dashboard and hands it to a BI developer — someone who takes an ambiguous business question, models the data behind it, designs the interface, ships it as a working web application, and then sits with the stakeholder who uses it. You'll work across the business — People, Finance, Products, and other lines of business — building custom, web-based analytics products that people actually open on a Monday morning. You'll use AI and GenAI tools (including Claude) to move from idea to deployed prototype in days rather than quarters, without the constraints of traditional BI platforms. This is a hands-on individual contributor role. You will spend your time in SQL, in data models, in code, and in front of the people who depend on what you build. WHAT YOU'LL DO Own analytics products end to end . Gather requirements directly from business stakeholders, model the underlying data, build the dashboard, validate it, deploy it, and iterate on real usage independently. Design and ship custom web-based dashboards . Build intelligent, self-serve analytics experiences as real web applications, using AI and GenAI tools to rapidly prototype and implement solutions that off-the- shelf BI tools can't deliver. Make the data trustworthy . Build clean, well-documented data models in SQL. Partner with data engineering and platform en

Integration meets Innovation At Celigo, we believe integration should empower — not exhaust — innovation. As a modern Integration and Automation Platform (iPaaS), we’re on a mission to simplify how companies integrate, automate, and optimize processes. Powered by game-changing technology like runtime AI and prebuilt, mission-critical integrations, Celigo is redefining how businesses connect their world. The Senior Solution Architect (Sr. SA) is a highly visible, strategic, and tactical role that requires business acumen, technical creativity, and industry experience. This is a technical position where you will assist our sales and project teams in helping them craft innovative cloud-based solutions using integrator.io, Celigo’s iPaaS (Integration Platform as a Service). Secondarily, you will also be working directly with customers to provide strategic integration architectural designs, business process assessments, and roadmaps for their implementations using integrator.io. What would you do if hired? Work independently, or as part of a larger sales team, to utilize your industry experience and creativity in crafting cloud-based solutions around SaaS and legacy application integrations. The solutions that you will craft will include web application integrations, complex business process automation, integration between cloud applications or between cloud and on-premises applications, etc. Conduct customer and partner scoping sessions that probe their business needs and craft a workable, technical solution using Celigo products and services. Write requirements and design documents that define the solution, method of integration, assumptions, customizations, and use cases. Be the voice of the customer internally, helping shape our product design and delivery. Provide design documents, business process assessments, change orders, and other deliverables during customer projects in the Solution Architect role, working with a project team and project man

This Is the Place to Be: ​ Connecting Futures Now! DHI Group, Inc. is the parent company of career marketplaces, Dice and ClearanceJobs . We connect candidates with career advice, resources and ultimately a dream job. At DHI, we’ve built a workplace where great people do meaningful work. This is the place to be, and we want you here with us. ​ You Belong Here: ​ Join a mission-driven company that puts its people first. We’re a collaborative, supportive team that lives by our “One Team” value – working together and winning together. Voted as a certified Great Place to Work®, our team members feel their opinions count and are cared for by DHI. 92% of employees say DHI is a Great Place to Work – 35% higher than the average U.S. company. We’ve built a culture grounded in collaboration, growth, and giving back through volunteering and employee resource groups. Come be part of something worth showing up for! About the role: We're seeking an experienced full-stack senior engineer to work on ClearanceJobs.com, the leading career marketplace for security-cleared professionals. You'll work across a Vue.js frontend, Laravel (PHP) backend, and a MySQL data layer, contributing to multiple interconnected repositories spanning the main web application, internal REST APIs, background job workers, and Terraform-managed infrastructure. The platform runs on AWS (EC2, RDS, S3, CloudFront, Lambda) and integrates with third-party services for recruiter tooling, identity verification, and analytics. Day-to-day, you'll ship features that shape how recruiters find and engage cleared candidates — candidate search and matching, workflow automation, job posting tools, messaging, and reporting. You'll own work end-to-end, from scoping with product through implementation, testing, and deployment via our CI/CD pipeline, on a small, senior team that values shipping over debating — we make pragmatic trade-offs, move quickly, and lean toward action rather than relitigating d

At Lyft, our purpose is to serve and connect. We aim to achieve this by cultivating a work environment where all team members belong and have the opportunity to thrive. Lyft connects people to transportation to change the way we live and get around our communities. Lyft’s engineering team is growing rapidly, and we are looking for Technical Program Managers to help us scale. Come be part of a new team at Lyft focused on enabling and empowering engineering teams to deliver at scale. Our drivers and passengers entrust Lyft with their personal information and travel details to get where they're going and expect us to keep that data safe. Lyft's security team leads efforts across the company to ensure our systems are secure and worthy of our users' trust. The security team designs and builds Lyft's security architecture, consult with other teams as they build and launch new products and features, proactively plans for the unexpected, and responds to incidents that occur. Our work affects the entire company and takes place at all levels of the stack, from infrastructure to web application security, as well as mobile apps, IT, and autonomous vehicles. We try to approach security from a software engineering standpoint. We believe in scaling security through automation and tooling and we ship frequently. Check out our blog posts at https://eng.lyft.com/tagged/security to learn more about some of the things we’ve built. We’re looking for the right person to join our team to perform service and application security review, and move us along our maturity journey. In order to be scalable, each secure product quality gate must be automated and integrated into our software release pipeline. Our grand vision is a fully automated series of quality controls that constantly validate that our

About the Role Together AI's product is what developers touch every day — Playground, Model Garden, Fine-Tuning, File Management, Batch Processing, Model Evals. These surfaces are how users experience the platform, and they need to be fast, intuitive, and something developers genuinely love using. That's what this role is about. We're growing the Product Engineering team and looking for a fullstack engineer who's motivated by shipping things users genuinely value — not features that just look good in a slide deck. You'll plug directly into new and existing workstreams and start shipping quickly, working across our core product surfaces to improve existing capabilities and build new ones. This is a high-ownership role on a small, fast-moving team, where one strong engineer moves the needle visibly. You'll see your work in production, instrument and measure it, and use that to shape what comes next. Responsibilities Ship improvements and new capabilities across Together AI's core product surfaces — Playground, Model Garden, Fine-Tuning, File Management, Batch Processing, and Model Evals Own projects and features end-to-end, from data model and API integration through the user interface Collaborate closely with other engineers to build clean, typed, reusable interfaces in our web application Instrument and measure what you ship — add product analytics, monitor system health, and prove users are getting value with data Work across design, product, and engineering to ship things that unlock user value Raise the bar on frontend and fullstack quality across the team through code review and collaborative architecture decisions Requirements 4–7 years of experience building and shipping real product to real users Strong JavaScript/TypeScript fundamentals; TypeScript experience highly valued Strong React expertise in a large-scale, production environment Full-stack fluency: you connect the dots from data model to API design to state management to the UI, and know how to make t

We’re looking for an experienced backend engineer with a passion for learning and working on systems. You will work with a world-class team of engineers on deploying and operating existing systems, and building new ones for challenges that are unique to our problem space. You will have a unique opportunity to design, develop, and operate services and frameworks that power Asana. This role is based in our Reykjavik office with an office-centric hybrid schedule. The standard in-office days are Monday, Tuesday, and Thursday. Most Asanas have the option to work from home on Wednesdays. Working from home on Fridays depends on the type of work you do and the teams with which you partner. If you're interviewing for this role, your recruiter will share more about the in-office requirements. What you’ll achieve Design, build, and iterate on frameworks that influence all aspects of the Asana product. Partner with other frameworks and product engineering teams to identify opportunities to enable teams to develop faster at Asana, and help the company achieve our goals faster. Analyze complex systems to uncover issues, root causes and areas of improvement Champion code quality and best practices, setting a standard through example and frameworks Develop new APIs that balance usability with the capability to support Asana’s feature-rich web application Write clean, beautiful code, striving to leave it in a better state than you found it Experience growth through opportunities to stretch and learn, enhancing your development Collaborate with a world-class engineering team to build new functionality through intuitive building blocks. About you 5+ years of BE experience working in large, well-maintained codebases writing and shipping production code Ability to learn quickly and transition seamlessly between different areas of a complex codebase Sound autonomous judgment when balancing moving quickly with producing quality, long-term maintainable code Focus on establishing and spread

Noctrix Health is redefining the treatment of chronic neurological disorders with clinically validated therapeutic wearables. Our team of medical device specialists, neuroscientists, and consumer electronics engineers is dedicated to delivering prescription-grade therapy with an outstanding user experience. We have pioneered the world’s first drug-free wearable therapy, clinically proven to alleviate symptoms in adults with drug-resistant Restless Legs Syndrome (RLS). Be part of our mission to transform healthcare, improve lives, and drive meaningful change with Noctrix Health. We are seeking an experienced Senior Full Stack Software Engineer to design, develop, and maintain software systems that support Noctrix's patient-facing and customer support applications. This role will own complex backend data processing, API services, and front-end integrations across Noctrix's software ecosystem, including Galen Data, Nidra Sync API, Nidra Sync, Nidra Virtual, and Nidra Care. The ideal candidate combines strong backend engineering expertise with modern web application development skills and a passion for building secure, scalable, and maintainable software solutions in a regulated medical device environment. This individual will play a key role in shaping technical architecture, mentoring engineers, and advancing software engineering best practices across the organization. This position reports to the Director of Software Engineering . ***This is a full-time, hybrid position located in our Pittsburgh office.*** Responsibilities: Design, develop, and maintain full stack software solutions across backend services, web applications, and mobile application integrations Own complex backend data processing and service workflows within Galen Data and Nidra Sync API, including data parsing, API integrations, and data storage architectures Build and maintain secure, scalable RESTful APIs supporting Nidra Sync, Nidra Care, Nidra Virtual, a

The MongoDB Cloud Services Team is a diverse group of contributors working together to help our users manage MongoDB at global scale. The Cloud Team is responsible for MongoDB Atlas: our database as a service offering, and fastest growing product, which allows users to deploy fault-tolerant, globally distributed MongoDB clusters in just minutes. The Backup Team delivers essential infrastructure to help our customers in their hour of need - providing the ability to quickly restore a massive, distributed database to any point in time at the click of a button. The Backup Team’s mission is to make MongoDB backup more reliable, faster, and also cheaper. This team is responsible for the Backup Agent (Go), the extensive server-side infrastructure (Java) which manages 100s of TB of data and processes billions of operations per day, and the user interface (Javascript) that customers use to manage their backups. Common project themes are performance, scaling, and ease of use. We are looking to speak to candidates who are based in New York for our hybrid working model. We're looking for someone who is Skilled at writing large-scale, distributed backend systems in a compiled language (Java, C#, Go, etc.) Fond of chasing down tough problems in a distributed systems environment Cool under pressure - has wrangled production crises, and secretly finds this a little fun Experienced with Linux, and able to correlate application performance problems with underlying hardware limits Comfortable working across the stack of a modern web application Always striving to expand their knowledge Curious, collaborative and intellectually honest Responsibilities Work closely with product teams, considering the user’s perspective while helping the team achieve success Collaborate with team members over best practices and core concepts Hold yourself accountable to your actions, maintaining the balance between accomplishing goals with research & development Own our

About Mixpanel Mixpanel is the leading product intelligence and analytics platform, trusted by more than 29,000 companies to help understand how people use the products they build. By combining powerful analytics with AI that knows your business, Mixpanel helps teams see what’s working, diagnose what’s not, and decide what to build next. Learn more at mixpanel.com . About The Role Data governance is one of the most critical challenges for Mixpanel's enterprise customers, and the AI era turns it into a foundational problem. Analytics and agents are only as trustworthy as the data beneath them. Poor data quality compounds: incorrect analyses spread as it becomes easier for anyone — or any agent — to query data, and the problem multiplies as customers scale into projects with high-cardinality events and fast-growing user bases. A data foundation that stays clean, consistent, and trusted is what sets Mixpanel apart. As a Senior Software Engineer on the Data Foundation team, you'll work across the stack to build high-impact features with extreme customer focus. You'll partner closely with engineers across the company, and with Design, Product, and GTM, to solve one of the hardest problems in analytics: keeping data clean, consistent, and trustworthy at scale. Curious what this looks like in practice? Read why data governance matters for AI-powered analytics on our blog. What You'll Do Build customer-facing features on our web application (React SPA) Collaborate closely with engineers and cross-functional partners across Product, Design, GTM, and beyond Take full ownership of projects — from shaping and delivery through iteration We're Looking For Someone Who Has Full-stack experience, with deep expertise in at least one of: Web application backends (Python, Django) High-volume APIs Search indexing A track record of leading projects end to end, not just executing tickets Comfort moving across the stack Bonus Points For Experience with data ingestion (Go) A data-driv

The MongoDB Customer Observability Team is a diverse group of contributors working together to help our users manage MongoDB at global scale. The team is responsible for MongoDB Atlas: our database-as-a-service offering and fastest-growing product, which allows users to deploy globally distributed MongoDB clusters in just minutes. We're seeking a Senior Software Engineer to join our team to tackle exciting challenges within the Observability space. You'll contribute to developing tools and platforms that help our users understand the health and performance of their MongoDB deployments. This includes collecting metrics, monitoring slow queries, and offering actionable insights such as index and schema suggestions that improve the speed, efficiency, and overall reliability of their databases. This role provides a unique opportunity to drive engineering excellence across both dimensions of observability, leveraging technologies being developed within the Customer Observability group and contributing directly to the success of our customers and our product teams. If you're passionate about large-scale systems, digging deep into telemetry data, and building tools that make a real impact both internally and externally, we’d love to have you on board! We are looking to speak to candidates who are based in Dublin for our hybrid working model. We're looking for someone who Has at least 5 years of experience as a backend or full stack engineer Enjoys collaboration and being part of a team Is approachable, curious, and intellectually honest Is a backend engineer with a willingness to take on frontend tasks or a full-stack developer with a bias towards backend Has written backend systems in a compiled language (Java, C#, Go, etc.) Has experience with the design and architecture of a modern, scalable web application Enjoys chasing down difficult problems in a distributed environment and on an database diagnostic/operation level Always strives to expand their knowledg

Forward was founded in 2013 by four Stanford Ph.D.s, building the industry's first network digital twin: a mathematically accurate model of the production network. It's the foundation for autonomous networking, giving engineers and AI agents the ability to know the impact of every change before it touches production. That founding instinct still defines how we work. We're accurate and evidence-driven, relentless about clarity, and we'd rather be certain than comfortable, building a groundbreaking platform that transforms how teams run and secure networks across every major cloud and vendor environment. Global leaders like Goldman Sachs, PayPal, S&P Global, IBM, and Dell trust Forward, alongside fast-growing enterprises and government agencies, realizing an average of $14.2 million in annual benefits, according to IDC. Backed by top-tier investors, including A. Capital, Andreessen Horowitz, Goldman Sachs, MSD Partners, Omega Venture Partners, Section 32, and Threshold Ventures, and headquartered in Santa Clara, we're most proud of our team: curious people who'd rather build what doesn't exist than accept how things have always been done. Forward is currently seeking a Java Backend Software Engineer to work as part of our Apps - Server team. The work will involve developing our web server, REST APIs, and product core by writing clean and solid code that interacts with our other services and components. Responsibilities include: Developing new product features that leverage the network model to help users: visualize their network, understand how it behaves, see how it has evolved, answer specific questions, and plan changes Designing the data model for new product features Proposing and implementing REST APIs to support the Forward web application and to publish to customers Constructively reviewing product designs, technical design documents, and code changes Requirements: At least 5+ years of full lifecycle software development experience Expertise in Java (versi