As Front End Developer, you’ll play a vital role in leading frontend development efforts for the application, taking full ownership of implementing and maintaining new features and updates. This role is ideal for a self-starter who excels in independent problem-solving, enjoys high-touch customer interactions, and thrives in a small, supportive team environment. The developer will create data-driven, interactive UIs that meet a variety of customer needs, requiring both technical expertise and an understanding of customer workflows and data requirements.

We know that you can’t have great technology services without amazing people. At MetroStar, we are obsessedwithour people and have led a two-decade legacy of building the best and brightest teams. Because we know our future relies on our deep understanding and relentless focus on our people, we live by our mission: A passion for our people. Value for our customers.

If you think you can see yourself delivering our mission and pursuing our goals with us, then check out the job description below!

What you’ll do:

• Act as the primary frontend developer, handling all UI related requirements, updates, and new UI features.
• Build and optimize user-friendly UI components, such as interactive grids and arrays, that display data in an organized and actionable format.
• Communicate consistently with customers, ensuring high-touch engagement and clear updates even through complex or evolving requirements.
• Collaborate with stakeholders to understand and accurately translate complex business logic into effective front-end solutions.
• Independently troubleshoot and debug issues as they arise, ensuring efficient and reliable UI performance.

What you’ll need to succeed:

• You have the ability to obtain and maintain a Public Trust Clearance
• Bachelor’s Degree + 4 years of relevant experience as a Front-End Developer
• C# and JavaScript Proficiency: Strong experience in C# and JavaScript for frontend development.
• .NET Framework Knowledge: Familiarity with .NET Framework is essential.
• Experience with .NET MAUI and Blazor: Knowledge of .NET MAUI and Blazor is a plus, as recent UI enhancements leverage these technologies.
• Independent Problem-Solving and Ownership: Ability to work independently, troubleshoot issues, and take full ownership of projects without needing step-by-step guidance.
• High Responsiveness and Customer Engagement: Ability to keep customers engaged and informed at every stage, providing updates even when troubleshooting is still in progress.
• Personable and Positive Communication: Enjoys collaborative, positive interactions with both team members and customers, demonstrating patience and professionalism.
• Strong Debugging Skills: Skilled in intensive debugging to solve complex UI and business logic issues independently.

Like we said, we arebig fans of our people. That’s why we offer a generous benefits package, professional growth, and valuable time to recharge. Learn more about our company culture code and benefits. Plus, check out our accolades.

Don’t meet every single requirement? 

Studies have shown that women, people of color and the LGBTQ+ community are less likely to apply to jobs unless they meet every single qualification.  At MetroStar we are dedicated to building a diverse, inclusive, and authentic culture, so, if you’re excited about this role, but your previous experience doesn’t align perfectly with every qualification in the job description, we encourage you to go ahead and apply.  We pride ourselves on making great matches, and you may be the perfect match for this role or another one we have. Best of luck! – The MetroStar People & Culture Team

What we want you to know:

In compliance with federal law, all persons hired will be required to verify identity and eligibility to work in the United States and to complete the required employment eligibility verification form upon hire.

MetroStar Systems is committed to creating a diverse environment and is proud to be an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, gender, gender identity or expression, sexual orientation, national origin, genetics, disability, age, or veteran status. The statements herein are intended to describe the general nature and level of work being performed by employees and are not to be construed as an exhaustive list of responsibilities, duties, and skills required of personnel so classified. Furthermore, they do not establish a contract for employment and are subject to change at the discretion of MetroStar Systems.

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Seeking to hire a Contractor based out of Argentina or Mexico for Senior Software Engineering Services.

Scope of Services:

• As a Contractor of our growing Technology team, you will help the team deliver high-quality work on time.
• You will be a key contributor within a software development team, and will craft great software and automated tests to assure the design and quality of your code.
• You will also own delivery of features, independently, and will provide thoughtful input that helps with scoping and design for your team.
• Reporting to the Engineering Manager for Content Engineering; temporarily reporting to the CTO.
• You will partner closely with Engineering, Product Management, and Product Design to refine ambiguous work items into clearly defined, valuable work items. 
• The Content Management Systems team owns the content production systems at Newsela and plays a vital role in the life blood of our platform. This system includes editorial tooling and publishing flows for a variety of content types, as well as content metadata and curricular standards alignments.

Why you’re a great fit:

• You have 5+ years of full-stack experience in software development and have demonstrated success working in a software-as-a-service (SaaS) environment.
• You are able to leverage your intermediate experience in Python to effectively build and deploy highly performant REST APIs.
• Additionally, you have a firm understanding of relational databases and experience in SQL creating and modifying data models, as well as writing and optimizing queries with scalability and performance in mind. 
• You also have some experience in Javascript.
• On top of your technical skills, you are excited to work in a collaborative and inclusive environment that supports continued improvement through code reviews and feedback. 
• You will be measured by demonstration of your technical expertise and involvement in scoping and preparing for delivery via groomed user stories, as well as execution of individual contributor tasks (architectural patterns and adherence, high-quality code and tests written, PR review cycle, QA findings, completing sprint commitments, identifying missing requirements, adherence to accessibility standards, and non-bias terminology in code. 

Please note that given the nature of the contract, this role will not be eligible to participate in company-sponsored benefits. 

The salary range for this role is $4,600 - $8,500 per month (Gross in USD) 

About Sezzle:

With a mission to financially empower the next generation, Sezzle is revolutionizing the shopping experience beyond payments, blending cutting-edge tech with seamless, interest-free installment plans that make shopping smarter and more accessible. We’re not just transforming payments; we’re redefining how people discover, interact with, and purchase the things they love while driving real impact on merchant sales through increased conversions and higher order values. As we continue to shape the future of fintech and retail, we’re building an innovative, dynamic team passionate about creating more than just a transaction but a truly unique shopping journey. If you’re excited about pushing boundaries in tech and delivering a game-changing experience for consumers and merchants alike, come join us at Sezzle and help create the future of shopping!

Compensation:

For this senior development role, with 8+ years of experience, the compensation range is $4,600 - $8,500 USD per month. This range acknowledges the extensive expertise, leadership capabilities, and significant contributions expected at this level, offering a competitive salary to reflect the value of advanced skills and experience.

About the Role: 

We are seeking a talented and motivated Senior Software Engineer who is best in class with a high IQ plus a high EQ. This role presents an exciting opportunity to thrive in a dynamic, fast-paced environment within a rapidly growing team, with abundant prospects for career advancement.

As a Senior Software Engineer with Sezzle, you will work with a highly-motivated team to tackle interesting and challenging problems across multiple areas of the organization. Your experience and guidance will help other members of the team level-up their own skills as well.

In this backend focused role, you will work closely with stakeholders from Product, Support and the business. You’ll also partner with other engineering teams to provide high-quality, scalable, and innovative solutions to internal and customer problems. Your day-to-day responsibilities will include designing, developing, and delivering new features, as well as unblocking and mentoring your teammates.

This role has both an internal and external focus, your contributions will make a meaningful difference in the day-to-day lives of your peers at Sezzle, enhancing their ability to support our business and customers, and you will have opportunities to take any feedback and iterate.

Key Role Responsibilities: 

• Design software applications and features in Golang and React
• Help build out a distributed architecture, creating solutions that work within it, maintaining consistency while scaling highly
• Coordinate with internal company stakeholders to design market winning products
• Develop and collect metrics to drive continuous improvement of existing products
• Deliver high quality features which can be tested and adheres to reporting standards
• As needed, lead small development teams to bring a project to market
• Mentor other engineering teammates to help elevate their experience and knowledge

Minimum Requirements: 

• At least 7 years of full-stack software engineering experience
• Experience bringing new ideas and building consensus on the path forward
• Experience with building and serving REST APIs using Go and Java Python or a similar language.
• Experience working in a distributed, cloud-based architecture, with either design patterns like transactional outboxes, or queuing tools like RabbitMQ, SQS, Kafka
• BS in Computer Science or similar degree, or equivalent work experience.

Preferred Knowledge and Skills:

• Experience with SQL based RDMS through an ORM tool
• Comfortable using observability platforms like Prometheus, or vendor solutions like NewRelic or Datadog to instrument your code for production monitoring and alerting.
• DevOps experience with CI/CD pipelines
• Familiarity with containerized micro-service architecture deployed with Kubernetes on AWS
• Demonstrated history of delivering commercial APIs and web applications
• A clear record of getting products to market and prioritizing solutions and improvements based on stakeholder/customer feedback.

About You: 

• You have relentlessly high standards - many people may think your standards are unreasonably high. You are continually raising the bar and driving those around you to deliver great results. You make sure that defects do not get sent down the line and that problems are fixed so they stay fixed.
• You’re not bound by convention - your success—and much of the fun—lies in developing new ways to do things
• You need action - speed matters in business. Many decisions and actions are reversible and do not need extensive study. We value calculated risk-taking.
• You earn trust - you listen attentively, speak candidly, and treat others respectfully.
• You have backbone; disagree, then commit- you can respectfully challenge decisions when you disagree, even when doing so is uncomfortable or exhausting. You have conviction and are tenacious. You do not compromise for the sake of social cohesion. Once a decision is determined, you commit wholly.
• You deliver results- you focus on the key inputs and deliver them with the right quality and in a timely fashion. Despite setbacks, you rise to the occasion and never settle.

Sezzle’s Technology Stack:

• Languages:Golang, Typescript, Python
• Frontend:Typescript - React and React Native
• Backend:Golang
• Database:MySQL, Postgres, Elasticsearch
• DevOps & Cloud:AWS, Kubernetes
• Version Control:Git
• CI/CD:Gitlab
• Testing:Developer-driven, focus on automated unit, integration, and end-to-end tests
• Sezzle is focused on using open source, and we build what we can before buying!

What Makes Working at Sezzle Awesome? 

At Sezzle, we are more than just brilliant engineers, passionate data enthusiasts, out-of-the-box thinkers, and determined innovators; we are skilled musicians, yogis, cyclists, chefs, golfers, dog-lovers, and rock-climbers. We believe in surrounding ourselves with not only the best and the brightest individuals, but those that are unique and purpose-driven in all that they do. Our culture is not defined by a certain set of perks designed to give the illusion of the traditional startup culture, but rather, it is the visible example living in every employee that we hire. 

#Li-remote

The salary range for this role is $2,800 - $6,000 per month (Gross in USD) 

About Sezzle:

With a mission to financially empower the next generation, Sezzle is revolutionizing the shopping experience beyond payments, blending cutting-edge tech with seamless, interest-free installment plans that make shopping smarter and more accessible. We’re not just transforming payments; we’re redefining how people discover, interact with, and purchase the things they love while driving real impact on merchant sales through increased conversions and higher order values. As we continue to shape the future of fintech and retail, we’re building an innovative, dynamic team passionate about creating more than just a transaction but a truly unique shopping journey. If you’re excited about pushing boundaries in tech and delivering a game-changing experience for consumers and merchants alike, come join us at Sezzle and help create the future of shopping!

Compensation:

For this mid-level development role, with 3-7 years of experience, the compensation range is $2,800 - $6,000 USD per month. This range is designed to reflect the skills, experience, and value brought to the team, ensuring competitive and fair pay within the industry.

About the Role: 

We are seeking a talented and motivated Software Engineer II who is best in class with a high IQ plus a high EQ. This role presents an exciting opportunity to thrive in a dynamic, fast-paced environment within a rapidly growing team, with abundant prospects for career advancement.
 As a Software Engineer II, you will be responsible for solving our most challenging problems along with a highly-motivated team.

In this role, you will work closely with other engineers across multiple teams to provide high-quality, scalable, and innovative products. Your day-to-day responsibilities will include partnering with other engineers to design, develop, and deliver new features. As your skills grow so will the size and scope of the projects which you’ll be involved in. Sezzle has a strong culture for promotion with defined paths through Engineering that matches all levels. You’ll be working as part of a full-stack Engineering team which has varied disciplines.

Key Role Responsibilities: 

• Build and maintain new innovative product features focused on actively learning new areas of the product
• Collaborate with owners for different product features to gain insight and offer constructive suggestions for improvements
• Be an active participant in design/architecture discussions sharing your ideas while building the next generation of features for the Sezzle platform  
• Hands-on with our codebase and a contributor to code reviews
• Mentor other engineers who are starting along their career path
• Work with the team to continuously build and deploy scalable solutions
• Assist in planning, estimations, and completion for projects brought up by the team stakeholders

Minimum Requirements: 

• Experience solving technical problems as part of a team
• Bachelor's in computer science (preferred) or equivalent related experience 
• Familiarity with modern Frontend Development, with React experience preferred
• Ability to solve problems with backend-focused languages like Go or similar compiled statically typed language
• Intermediate understanding of relational databases like MySQL

Preferred Knowledge and Skills:

• Knowledgeable in writing automated tests for applications (unit, integration, end-to-end)
• Familiar with the basic principles and design of RESTful APIs
• Basic knowledge of a Microservice Architecture
• Close familiarity with software engineering tools, software development methodology, and release processes

About You: 

• You have relentlessly high standards - many people may think your standards are unreasonably high. You are continually raising the bar and driving those around you to deliver great results. You make sure that defects do not get sent down the line and that problems are fixed so they stay fixed.
• You’re not bound by convention - your success—and much of the fun—lies in developing new ways to do things
• You need action - speed matters in business. Many decisions and actions are reversible and do not need extensive study. We value calculated risk-taking.
• You earn trust - you listen attentively, speak candidly, and treat others respectfully.
• You have backbone; disagree, then commit- you can respectfully challenge decisions when you disagree, even when doing so is uncomfortable or exhausting. You have conviction and are tenacious. You do not compromise for the sake of social cohesion. Once a decision is determined, you commit wholly.
• You deliver results- you focus on the key inputs and deliver them with the right quality and in a timely fashion. Despite setbacks, you rise to the occasion and never settle.

Sezzle’s Technology Stack:

• Languages:Golang, Typescript, Python
• Frontend:Typescript - React and React Native
• Backend:Golang
• Database:MySQL, Postgres, Elasticsearch
• DevOps & Cloud:AWS, Kubernetes
• Version Control:Git
• CI/CD:Gitlab
• Testing:Developer-driven, focus on automated unit, integration, and end-to-end tests
• Sezzle is focused on using open source, and we build what we can before buying!

What Makes Working at Sezzle Awesome? 

At Sezzle, we are more than just brilliant engineers, passionate data enthusiasts, out-of-the-box thinkers, and determined innovators; we are skilled musicians, yogis, cyclists, chefs, golfers, dog-lovers, and rock-climbers. We believe in surrounding ourselves with not only the best and the brightest individuals, but those that are unique and purpose-driven in all that they do. Our culture is not defined by a certain set of perks designed to give the illusion of the traditional startup culture, but rather, it is the visible example living in every employee that we hire. 

#Li-remote

The salary range for this role is $1,500 - $3,000 per month (Gross in USD) 

About Sezzle:

With a mission to financially empower the next generation, Sezzle is revolutionizing the shopping experience beyond payments, blending cutting-edge tech with seamless, interest-free installment plans that make shopping smarter and more accessible. We’re not just transforming payments; we’re redefining how people discover, interact with, and purchase the things they love while driving real impact on merchant sales through increased conversions and higher order values. As we continue to shape the future of fintech and retail, we’re building an innovative, dynamic team passionate about creating more than just a transaction but a truly unique shopping journey. If you’re excited about pushing boundaries in tech and delivering a game-changing experience for consumers and merchants alike, come join us at Sezzle and help create the future of shopping!

About the Role:

We are seeking a talented and motivated  Junior Software engineerwho is best in class with a high IQ plus a high EQ. This role presents an exciting opportunity to thrive in a dynamic, fast-paced environment within a rapidly growing team, with abundant prospects for career advancement. The Junior Software Engineer will assist us with the design, development, and installation of software solutions. Your duties will include development, writing code, and documenting functionality. You should be able to build high-quality, innovative and fully performing software in compliance with coding standards and technical design.

Compensation:

For this junior development role, with 0-3 years of experience, the compensation range is $1,500 - $3,000 USD per month. This range is designed to accommodate early-career professionals and reflects the foundational skills and potential for growth within the role.

Interview Process

We believe transparency is important at Sezzle. Regularly providing feedback while setting expectations is part of our culture starting with the interview process. Advancement through each step is not guaranteed.

• Application submitted (you are here)
• Cognitive test (12 min)
• Coding assessment (~1.5 hours)
• Potential English assessment
• Interview with recruiters (30 min)
• Interview with engineers (1 hour)
• Interview with engineering leadership (30-45 min)
• Offer!

Sezzle Technical Stack:

• Golang backend, React / React Native front-end
• Grafana / Loki / Prometheus metrics
• Kubernetes
• AWS
• Amazon Aurora (MySQL) RDS
• Gitlab CI/CD deployments
• Unit, Integration, and end-to-end testing

Responsibilities:

• Be an integral part of the software development lifecycle
• Work as an integrated team member developing new features
• Evaluate and deploy software tools, processes, and metrics
• Provide support and consulting on software systems usage
• Ensure compliance with project plans and industry standards

Ideal Skills and Experience:

• Experience working on single page web applications (SPA)
• Experience with backend API development
• Experience with relational database storage and retrieval
• Familiarity with software engineering tools, software development methodology, and release processes
• BS degree in Computer Science or Engineering, or equivalent experience

Sezzle’s Technology Stack:

• Languages:Golang, Typescript, Python
• Frontend:Typescript - React and React Native
• Backend:Golang
• Database:MySQL, Postgres, Elasticsearch
• DevOps & Cloud:AWS, Kubernetes
• Version Control:Git
• CI/CD:Gitlab
• Testing:Developer-driven, focus on automated unit, integration, and end-to-end tests
• Sezzle is focused on using open source, and we build what we can before buying!

#Li-remote

ABOUT KHAN ACADEMY

Khan Academy is a nonprofit with the mission to deliver a free, world-class education to anyone anywhere. Our proven learning platform offers free, high-quality supplemental learning resources that cover Pre-K-12th grade and early college core academic subjects, with a focus on math and science. We have over 155 million registered learners globally and are committed to improving learning outcomes for students around the world, with a focus on learners in historically under-resourced communities. 

OUR COMMUNITY 

Our students, teachers, and parents come from all walks of life, and so do we. Our team includes people from academia, traditional/non-traditional education, big tech companies, and tiny startups. We hire great people from diverse backgrounds and experiences because it makes our company stronger. We value diversity, equity, inclusion, and belonging as necessary to achieve our mission and impact the communities we serve. We know that transforming education starts in-house with learning about ourselves and our colleagues. We strive to be world-class in investing in our people and commit to developing you as a professional.

THE ROLE

We are hiring a Sr. Software Engineer. We are focused on providing equitable solutions to historically under-resourced communities of learners and teachers, and guided by our Engineering Principles. You’ll help us build out our platform and leverage AI to democratize 1:1 tutoring for every learner, and a teaching assistant to every teacher, at scale.

We are a remote-first organization and we strive to build using technology that is best suited to solving problems for our learners. We build with Go, GraphQL, JavaScript, React & React Native, Redux and we adopt new technologies when they’ll help us better achieve our goals. At Khan, one of our values is “Cultivate Learning Mindsets”, so for us, it’s important that we’re working with all of our engineers to help match the right opportunity to the right individual, in order to ensure every engineer is operating at their “learning edge”.

You can read about our latest work on our Engineering Blog. A few highlights:

• Incremental Rewrites with GraphQL
• Our Transition to React Native
• Go + Services = One Goliath Project
• How Engineering Principles Can Help You Scale
• How to upgrade hundreds of React components without breaking production

WHAT YOU BRING

• 5+ years experience building world-class product experiences for an interactive web-app. In particular, you have built and maintained scalable backend services, as well as complex, stateful frontend user interfaces.
• Experience building and maintaining complex software. You’ll join us in writing clean, maintainable software that solves hard problems. You’ll write testable, quality code. You’ll push the team and the mission forward with your contributions.
• Strong communication, thoughtfulness, and desire to give and receive regular feedback.
• Proven cross-cultural competency skills demonstrating self-awareness, awareness of other, and the ability to adopt inclusive perspectives, attitudes, and behaviors to drive inclusion and belonging throughout the organization.
• Empathy for learners around the world. You love learning and are excited about helping others learn to love learning. You’re motivated to learn new things and share what you learn with the world.
• A motivation for Khan Academy's mission “to provide a free world-class education for anyone, anywhere.”
• Experience using Machine Learning / LLMs to build products a plus (but not required).

We welcome candidates with experience in any and all technologies. We don’t require experience in any particular language or tool. Our commitment to on-boarding and mentorship means you won’t be left in the dark as you learn new technologies.

PERKS AND BENEFITS

We may be a non-profit, but we reward our talented team extremely well! We offer:

• Competitive salaries
• Ample paid time off as needed – Your well-being is a priority.
• Remote-first culture - that caters to your time zone, with open flexibility as needed, at times
• Generous parental leave
• An exceptional team that trusts you and gives you the freedom to do your best
• The chance to put your talents towards a deeply meaningful mission and the opportunity to work on high-impact products that are already defining the future of education
• Opportunities to connect through affinity, ally, and social groups
• And we offer all those other typical benefits as well: 401(k) + 4% matching & comprehensive insurance, including medical, dental, vision, and life

At Khan Academy we are committed to fair and equitable compensation practices, the well-being of our employees, and our Khan community. This belief is why we have built out a robust Total Rewards package that includes competitive base salaries, and extensive benefits and perks to support physical, mental, and financial well-being.

The target salary for this position is $137,871 - $154,069 USD / $186,306 - $207,993 CAN. The pay range for this position is a general guideline only. The salary offered will depend on internal pay equity and the candidate’s relevant skills, experience, qualifications, and job market data. Exceptional performers in this role who make an outsized contribution can make well in excess of this range.  Additional incentives are provided as part of the complete total rewards package in addition to comprehensive medical and other benefits.

MORE ABOUT US

• Sal’s TED talk from 2011
• Sal’s TED talk from 2015
• Sal's TED talk from 2023
• Our team:  http://www.khanacademy.org/about/the-team

OUR COMPANY VALUES

Live & breathe learners

We deeply understand and empathize with our users. We leverage user insights, research, and experience to build content, products, services, and experiences that our users trust and love. Our success is defined by the success of our learners and educators.

Take a stand

As a company, we have conviction in our aspirational point of view of how education will evolve. The work we do is in service to moving towards that point of view. However, we also listen, learn and flex in the face of new data, and commit to evolving this point of view as the industry and our users evolve.

Embrace diverse perspectives

We are a diverse community. We seek out and embrace a diversity of voices, perspectives and life experiences leading to stronger, more inclusive teams and better outcomes. As individuals, we are committed to bringing up tough topics and leaning into different points of view with curiosity. We actively listen, learn and collaborate to gain a shared understanding. When a decision is made, we commit to moving forward as a united team.

Work responsibly and sustainably

We understand that achieving our audacious mission is a marathon, so we set realistic timelines and we focus on delivery that also links to the bigger picture. As a non-profit, we are supported by the generosity of donors as well as strategic partners, and understand our responsibility to our finite resources. We spend every dollar as though it were our own. We are responsible for the impact we have on the world and to each other. We ensure our team and company stay healthy and financially sustainable.

Bring out the joy

We are committed to making learning a joyful process. This informs what we build for our users and the culture we co-create with our teammates, partners and donors.

Cultivate learning mindset

We believe in the power of growth for learners and for ourselves. We constantly learn and teach to improve our offerings, ourselves, and our organization. We learn from our mistakes and aren’t afraid to fail. We don't let past failures or successes stop us from taking future bold action and achieving our goals.

Deliver wow

We insist on high standards and deliver delightful, effective end-to-end experiences that our users can rely on. We choose to focus on fewer things — each of which aligns to our ambitious vision — so we can deliver high-quality experiences that accelerate positive measurable learning with our strategic partners.

We are committed to equal employment opportunity regardless of race, color, ancestry, religion, sex, gender, gender identity or expression, national origin, sexual orientation, age, citizenship, marital status, disability, or Veteran status. We value diversity, equity, and inclusion, and we encourage candidates from historically underrepresented groups to apply.