Skip to content
CV Rocket
Get started
How it worksThe enginePricingBlogContactSign in

Open nowPosted today

Full Stack Software Engineer

Sphera12 open roles

Where
US Remote
Work mode
Remote
Get the CV for this job

From $25 per CV, paid once. No subscription.

Your applicationOpen nowFull Stack Software EngineerSphera · US Remote

  1. YouYes, apply to this one.

  2. CV RocketCV written for this posting.

  3. 25 readersRecruiter, hiring manager, skeptic. Round after round.

  4. CV RocketApplied on Sphera's own form.

The reply lands in your private mailbox

3×more interviews than doing it yourself with ChatGPT.

The clock on this job

Early applications get read.

12.3% of postings close within 7 days. Measured by our own scanner across the market. Sphera postings stay open a median of 26 days.

Share of postings closed within
  1. 2.1%1 day
  2. 4.5%3 days
  3. 12.3%7 days
  4. 19.3%14 days
  5. 35.6%30 days
  6. 58.1%60 days
This job: posted today

Sphera median: 26 days open

The posting

Sphera is a leading global provider of enterprise software and services that enables companies to manage and optimize their environmental, health, safety and sustainability. Our mission is to create a safer, more sustainable and productive world.

Sphera is a portfolio company of Blackstone, a U.S.-based alternative asset investment company that focuses on private equity, technology and innovation, and more. Blackstone businesses succeed through strong partnerships, a personalized approach and a commitment to exceptional performance with uncompromising integrity. Sphera and Blackstone are leaders in the Environmental, Social and Governance (ESG) space.

We are guided by our core values of Customer Centricity, Accountability, Bias to Action, Innovation, and Collaboration. These values help us recruit the right talent to join our rapidly expanding team around the globe. It is important to us that each and every Spherion is not only eager to challenge themselves and knows how to get work done but is an awesome addition to our company culture.

Full Stack Software Engineer

Position Summary:

The Full Stack Software Engineer designs, develops, tests, and sustains features across the Hazardous Material Management System (HMMS) product line. The role supports a mission-critical platform for hazardous materials, waste, inventory, regulatory data, and reporting while modernizing both legacy and current components.

The engineer will build React and TypeScript interfaces, Java and Spring Boot services, REST integrations, and relational database components. This role is for someone who can independently deliver full-stack features, modernize legacy enterprise applications, work securely in a government-oriented environment, and use AI-assisted development tools responsibly.

Key Responsibilities:

  • Build, maintain, and modernize Java and Spring Boot applications, RESTful and SOAP services, microservices, system integrations, and deployments across Apache Tomcat and Oracle WebLogic using modular, maintainable architectures.
  • Develop responsive, accessible user interfaces using React, TypeScript, JavaScript, HTML, CSS, and reusable component libraries in accordance with applicable Section 508 and WCAG requirements.
  • Develop and optimize SQL queries, stored procedures, data models, schemas, migrations, integrity controls, persistence components, and Jaspersoft or JasperReports reporting services using Oracle or another enterprise relational database.
  • Apply secure coding practices to produce maintainable, well-documented code supported by automated testing, code reviews, vulnerability remediation, dependency upgrades, continuous engineering improvement, and responsible use of AI-assisted development tools with appropriate human review.
  • Diagnose and resolve software defects across the browser, service, application-server, integration, and database layers.
  • Collaborate with product, QA, architecture, DevOps, and engineering partners on technical design, estimation, implementation planning, code reviews, and documentation throughout the software development lifecycle.
  • Use Azure DevOps and Git-based workflows for source control, work tracking, pull requests, code reviews, builds, deployments, and release coordination.

Qualifications & Experience:

  • U.S. citizenship is required. Must be able to obtain and maintain a U.S. Government Common Access Card.
  • Three to five years of professional full-stack software development experience building React applications with TypeScript, JavaScript, HTML, and CSS and developing Java services with Spring Boot, Spring Framework, dependency injection, and RESTful APIs.
  • Bachelor’s degree in Computer Science, Software Engineering, Information Technology, or a related field, or equivalent professional experience.
  • Strong understanding of object-oriented programming, design patterns, exception handling, collections, concurrency, and multithreaded application behavior, with experience using Maven or a comparable Java build and dependency-management tool.
  • Experience with SQL, relational data modeling, and database-driven application development using Oracle or another enterprise relational database; Oracle and PL/SQL experience is beneficial.
  • Understanding of secure coding practices, common web application risks, authentication, authorization, session management, role-based access, and secure configuration, with experience developing automated unit and integration tests using JUnit, Mockito, Jest, React Testing Library, or comparable tools.
  • Experience using AI-assisted development tools to support software design, implementation, testing, debugging, documentation, and code review while applying appropriate security, privacy, and human-review practices.
  • Ability to troubleshoot across user interfaces, APIs, services, application servers, integrations, and databases and clearly communicate technical findings, implementation decisions, and recommended actions.
  • Experience with Git-based source control, pull-request workflows, CI/CD, work tracking, and platforms such as Azure DevOps in an Agile software development environment.

Core Technical Capabilities:

Frontend Engineering

  • React, TypeScript, JavaScript, HTML5, CSS, reusable components, and component frameworks such as Material UI.
  • React Testing Library and Jest; state management and API integration; responsive and accessible interface development; and micro-frontend or modular frontend architecture.

Backend Engineering

  • Java 8 or later; Spring Boot and Spring Framework; RESTful and SOAP services; microservices and service-oriented architecture; JSON and XML processing; authentication and integration services; and batch or scheduled workloads.

Database Development

  • SQL development, relational modeling, schema design, stored procedures, query optimization, transactions, migrations, data validation, and data-integrity controls.
  • Java persistence technologies such as JDBC, JPA, or Hibernate, with experience using Oracle, PostgreSQL, Microsoft SQL Server, MySQL, or another relational database and the ability to work effectively with Oracle and PL/SQL in the HMMS environment.

Development and Delivery Tooling

  • Azure DevOps, Git and pull-request workflows, Maven, CI/CD pipelines, and development environments such as IntelliJ IDEA or Visual Studio Code.
  • SonarQube or comparable code-quality tools, application and dependency vulnerability scanning, and Docker containerization.

What Success Looks Like:

End-to-End Engineering Delivery

Independently delivers secure, testable, and maintainable capabilities across React and TypeScript interfaces, Java and Spring Boot services, APIs, application servers, and relational databases. Modernizes legacy components, resolves complex cross-layer issues, and works across engineering disciplines to move features from design through release.

Professional Skills:

  • Applies sound engineering judgment with strong attention to code quality, security, performance, and maintainability across development and deployment environments.
  • Owns assigned features from design through release, independently resolves complex technical issues, communicates findings clearly, and works effectively across frontend, backend, database, QA, and DevOps disciplines.
  • Safely improves large, interconnected systems while balancing modernization with support for existing production capabilities.

Professional Skills:

  • Advanced experience modernizing complex legacy Java enterprise applications built with WebLogic, Tomcat, JSF, JSP, Servlets, Oracle middleware, or comparable technologies.
  • Advanced experience with Oracle or another enterprise relational database, including SQL, PL/SQL, schema versioning, migrations, data-access modernization, performance troubleshooting, and reporting platforms such as Jaspersoft or JasperReports.
  • Experience with dependency modernization, vulnerability remediation, framework upgrades, and tools such as Black Duck, SonarQube, or OWASP ZAP.
  • Experience applying AI-driven development lifecycle practices across planning, design, coding, testing, security review, documentation, and delivery using OpenAI Codex, GitHub Copilot, Microsoft Copilot, or comparable AI development tools.
  • Experience with Microsoft Azure services, federated identity technologies such as Okta, OpenID Connect, OAuth 2.0, or SAML, and system-to-system integrations using XML, JSON, messaging, or batch exchange.
  • Experience supporting software deployed into customer-managed or access-controlled environments.
  • Demonstrated success learning unfamiliar technologies and contributing across modern and legacy application architectures, including microservices and micro-frontends.
  • Experience developing, testing, and releasing native mobile applications for Android or iOS using Kotlin, Java, Swift, or comparable mobile development technologies.

Pay:

$99,000.00 - $157,000.00 + Eligible for Variable Compensation Plan

Commensurate with relevant qualifications and experience

Benefits:

  • Medical, Dental, and Vision Insurance
  • Health Savings Account
  • Flexible Spending Account
  • 401(k) Retirement Plan with Company Match
  • Life and Disability Insurance
  • Critical Illness Insurance
  • Accident Insurance
  • Hospital Indemnity Insurance
  • Paid Time Off and Holidays
  • Flexible Working Schedule

Sphera is proud to be an Equal Opportunity Employer. We celebrate diversity and are committed to creating an inclusive environment for all colleagues. We provide equal employment opportunities to all individuals regardless of race, color, religion, sex, sexual orientation, gender identity or expression, national origin, disability, age, veteran status, marital status, or any other legally protected status.

If you require a reasonable accommodation for a disability during the application or recruiting process, please email us at [email protected] to make your request. To help us best respond, please include your name and the position you are applying for in your message.

This job description is intended to convey information essential to understanding the scope of the job and the general nature and level of work performed by job holders within this job. This job description is not intended to be an exhaustive list of qualifications, skills, efforts, duties, responsibilities or working conditions associated with the position.

From $25, paid onceGet the CV for this job

What happens when you press

One press. We do the rest.

  1. A CV for this posting

    Written against Sphera's own wording, from every piece of relevant proof in your profile.

  2. 25 readers review it

    Recruiter, hiring manager, skeptic and more read every draft, round after round. You get the best round.

    The review screen in CV Rocket: how each CV was read, round by round.

  3. We apply on Sphera's form

    Our application engine gets through the hardest forms there are. Where a question needs you, AI suggests the best answer. Don't want us applying from our IP addresses? Use our Chrome extension: we apply straight from your own browser.

    An application in CV Rocket: every answer filled in on the employer's form.

  4. Every reply, sorted

    Sphera's answer lands in your private mailbox, and we classify it on arrival: interview, question, rejection.

    The CV Rocket inbox: each employer reply classified as an interview, an action or a rejection.

  5. Reply with AI

    AI helps you write the email, checks it and sends it. We show you whether the recruiter read it.

  6. The interview in your calendar

    Full integration with your calendar. The invitation goes straight in.

    An interview invitation in the CV Rocket inbox, added to the candidate's calendar.
Get the CV for this job

From $25 per CV, paid once. No subscription.

Why it works

3×

more interviews than doing it yourself with ChatGPT.

ChatGPT writes a CV and never learns what happened to it. We see every reply. For each CV we know:

  • How it was written, and how the review scored it
  • When we applied, and how long after the posting went up
  • Which posting, which company, which city
  • Who got the interview, and who heard nothing

That is how we know which CVs get called.

Get the CV for this job

From $25 per CV, paid once. No subscription.

The numbers game

More applications. More interviews.

Every application goes out with its own CV, written for that posting and paid once. Send enough of them and the law of large numbers finds you the job.

Get the CV for this job
By hand5–10
With CV Rocket100
applications a day

Nearby

Live postings like this one

Same employer first, then the same role elsewhere.

Before you press

Straight answers

Get the CV for this job

From $25 per CV, paid once. No subscription.

What if my background isn't good enough?

We make the most of the background you have. The CV uses every piece of relevant proof your profile holds, and one of the 25 readers reads your whole profile and flags what the CV left out.

Do you really apply for me?

Yes, on the employer's own form, the hardest ones included. Where a question needs you, you answer it right there and AI suggests the best answer. Don't want us applying from our IP addresses? Use our Chrome extension: we apply straight from your own browser.

Is it a subscription?

No. You pay once per CV, from $25. Every application goes out with its own CV, written for that posting.

One job. One CV.
Paid once.

Pick the posting you want. We write for it, apply for you and catch the reply.

Get the CV for this job

From $25 per CV, paid once. No subscription.