Senior API Developer
Ella Marshall
[email protected] • +1 (425) 987-6543 • linkedin.com/in/ella-marshall • github.com/ellamarshdev • ellam.dev • Seattle, WA
Professional Summary
Senior API Developer with over 5 years of experience in designing and implementing RESTful APIs for high-transaction financial platforms. Led the development of a secure, scalable payment processing system that integrated multiple backend services, enhancing performance and reliability. Proficient in Node.js, GraphQL, and OAuth security protocols.
Skills
Python, JavaScript, Node.js, TypeScript, AWS Lambda, Azure Functions, Google Cloud Platform, OAuth 2.0
Work Experience
Senior API Developer
01/2022
Tech Company Inc, San Francisco, CA
•
Built and deployed a high-scale API gateway that handles 2M requests/day, reducing infrastructure costs by $50K annually
•
Implemented a caching strategy that reduced API response time by 40%, improving user experience significantly
•
Developed a secure authentication module that processed 5K user logins/hour, ensuring seamless access control and security compliance
•
Migrated a legacy API system to GraphQL, improving data fetching speed and developer productivity through simplified data querying
API Developer
06/2020 - 12/2021
Previous Company, San Francisco, CA
•
Created a RESTful API for user management that served 5K+ users daily, enhancing system scalability and reliability
•
Developed an OAuth 2.0 authorization server that integrated multiple third-party services, ensuring secure and seamless authentication for users
API Developer
01/2018 - 05/2020
Startup Inc., San Francisco, CA
•
Led the development of a payment processing API that integrated with multiple financial institutions, reducing transaction failure rates by 25%
•
Optimized database queries and data structures, reducing API response time by 50% for critical endpoints
Education
Master of Science in Computer Science
09/2015 - 06/2017
University of Washington, Seattle, WA
Relevant coursework: Advanced Data Structures and Algorithms, Cloud Computing Technologies, Distributed Systems. GPA: 3.8
Projects
Crypto-API-Integration
github.com/ellamarshdev/crypto-api-integration
Developed a RESTful API that integrates with multiple cryptocurrency exchanges to provide real-time price updates and trading capabilities, enhancing the user's ability to manage their digital assets efficiently.
Cloud-Function-Bot
Created an automated bot using AWS Lambda and API Gateway to manage cloud resource deployments, which streamlines the process of scaling applications during peak times.
Certifications
AWS Certified Solutions Architect - Associate
06/2023
Amazon Web Services
Certification awarded for demonstrating expertise in designing and deploying scalable, secure, and highly available cloud-based systems using AWS.
Azure Certified Developer for Azure Functions
09/2024
Microsoft Corporation
Certification granted for proficiency in developing serverless applications using Azure Functions, including API design and cloud integration.
Join thousands who transformed their careers with AI-powered resumes that pass ATS and impress hiring managers.
Loading template...
Loading template...
This resume format is optimized for Applicant Tracking Systems (ATS) by including relevant keywords such as 'API Developer', 'RESTful APIs', and 'secure financial platforms'. The use of a professional summary highlights key achievements and responsibilities in the field, making it stand out to hiring managers and HR professionals. Additionally, the inclusion of specific technologies and programming languages commonly used in API development enhances its visibility within targeted job searches.
Want to know how your Senior API Developer resume performs? Use our free ATS Resume Score tool to get instant feedback on your resume's ATS compatibility for Senior API Developer positions. Upload your resume below and receive detailed analysis with actionable recommendations to improve your chances of landing interviews.
Instant ATS-friendly analysis with recruiter-ready suggestions to land 2x more interviews. No signup required for basic score.
Import your profile to unlock automated fixes, personalized career tips, and smart job matching.
or click to browse files
Supports PDF and DOCX • Max 20MB
Expert guidelines and best practices for each section of your resume.
First Name Last Name City, State, Zip Code Phone Number | Email Address LinkedIn Profile URL | Portfolio URL (Optional)
Your contact information is the first section recruiters see. Keep it concise and professional. Ensure your email address is appropriate (e.g., [email protected]). Include your LinkedIn profile for a comprehensive view of your professional journey. A portfolio or personal website is recommended for creative, technical, or design roles.
Do not include your full physical address (street number/name) for privacy reasons. Avoid including personal details like marital status, age, photo, or social security number unless specifically required in your country. Don't use unprofessional email addresses.
See clear examples of how to format contact details effectively.
John Doe 1234 Random St, Apt 56 New York, NY 10001 [email protected] github.com/aliciacode Single, 28 years old
John Doe New York, NY (555) 123-4567 | [email protected] linkedin.com/in/johndoe | github.com/johndoe | johndoe.dev
Professional Title
Result-oriented [Role Name] with [Number] years of experience in [Key Skills/Industries]. Proven track record of [Major Achievement]. Skilled in [Key Technologies/Skills]. Committed to delivering [Specific Value] for [Target Industry/Company type].
A professional summary is your elevator pitch. It should be 3-5 sentences long, summarizing your experience, key skills, and major achievements. Tailor it to the job description by using relevant keywords. Focus on what makes you unique and the value you bring to potential employers.
Avoid generic objectives like 'Looking for a challenging role to grow my skills.' Recruiters want to know what value you bring to them, not what you want from them. Don't use first-person pronouns (I, me, my). Keep it concise and impactful.
Compare a weak objective with a strong professional summary.
Objective: I am a hard-working individual looking for an API Developer position where I can learn new things and advance my career.
Senior API Developer with 6+ years of experience in designing secure, scalable APIs. Reduced system downtime by 45% through optimized caching strategies on AWS Lambda. Expert in RESTful services, GraphQL, and OAuth security protocols.
Highlight specific achievements
Objective: Seeking a position as an API Developer to utilize my skills in Python and Node.js.
Senior API Developer with 7+ years of experience in developing RESTful APIs for high-transaction financial platforms. Led the integration of third-party services, improving system reliability by 30%. Proficient in AWS Lambda, Azure Functions, and Google Cloud Platform.
Showcase key skills
Objective: I am a detail-oriented API Developer with experience in cloud platforms.
Senior API Developer with expertise in designing and implementing RESTful APIs. Specialized in integrating cloud-based solutions to streamline internal processes, enhancing efficiency through automation. Proficient in Python, Node.js, and TypeScript.
Tailor the summary for the job
Objective: To secure a role as an API Developer where I can apply my knowledge of cloud platforms.
Senior API Developer with extensive experience in developing and maintaining scalable APIs on AWS, Azure, and Google Cloud. Led the migration to GraphQL, increasing developer productivity through simplified data querying. Skilled in OAuth 2.0 security protocols.
Technical Skills
Soft Skills
Group your skills logically (e.g., Languages, Frameworks, Tools). Focus on hard skills relevant to the job. List skills in order of proficiency or relevance. Soft skills are better demonstrated through bullet points in your experience section rather than a bare list.
Do not list skills you are not comfortable using in an interview. Avoid using progress bars or percentages to rate your skills (e.g., "Java: 80%"). Do not include outdated technologies unless specifically required by the job description.
Practical example showing do's and don'ts for skills
JavaScript, Java, C++, .NET Core (beginner)
Python, JavaScript, TypeScript, Node.js
Hibernate 4, Apache Tomcat, JUnit (3.8)
Spring Boot, Express.js, Jest
Job Title | Company Name | Location Month Year – Month Year
This is the core of your resume. Use reverse-chronological order (most recent first). Start each bullet with a strong action verb. Focus on achievements and impact, not just duties. Use numbers to quantify your impact (dollars, percentages, time saved, users affected). Show progression and increasing responsibility.
Avoid passive language like 'Responsible for...' or 'Tasked with...'. Don't list every single daily task; focus on significant contributions and measurable outcomes. Avoid jargon that recruiters outside your field won't understand.
Practical example showing do's and don'ts for experiences
Maintained API documentation in Confluence.
Updated comprehensive API documentation, ensuring clear guidelines for over 50 developers.
Worked on various projects involving API development.
Led the development of a RESTful payment processing system that integrated multiple financial institutions, reducing transaction failure rates by 25%.
Degree Name | University Name | Location Month Year – Month Year
List your highest degree first. If you have significant work experience, keep the education section brief. Include your GPA only if it is above 3.5 or if you are a recent graduate. Highlight relevant coursework, academic projects, honors, or leadership roles.
Do not include high school details if you have a college degree. Avoid listing every single course you took; select only the most relevant ones. Don't include graduation dates from decades ago if age discrimination is a concern in your field.
Practical example showing do's and don'ts for educations
Bachelor of Science in Computer Information Systems | University of Phoenix | Tempe, AZ May 2015 – December 2017
Master of Science in Computer Science | University of Washington | Seattle, WA September 2015 – June 2017
Project Name | Technologies Used
Projects are excellent for demonstrating practical skills, especially if you lack work experience or are changing careers. Include a link to the GitHub repo or live demo if possible. Focus on projects that show problem-solving skills and relevant technologies for the target role.
Don't include trivial tutorials unless you significantly expanded on them. Avoid projects that are outdated, incomplete, or irrelevant to the role you're applying for. Don't just list technologies—explain what you built and why it matters.
Practical example showing do's and don'ts for projects
Built a simple REST API to display 'Hello, World!' message. Used Express.js framework.
Developed a RESTful API that integrates with multiple cryptocurrency exchanges to provide real-time price updates and trading capabilities, enhancing the user's ability to manage their digital assets efficiently. Technologies: Node.js, MongoDB, AWS Lambda.
Common questions about this role and how to best present it on your resume.
Knowledge of RESTful APIs, GraphQL, and microservices architecture is crucial.
Highlight transferable skills and express enthusiasm for the role to show you are a good fit despite overqualification.
Include relevant languages like Python, JavaScript, Java, and C# if they align with your experience in building APIs.
Link to GitHub repositories or provide URLs of live projects that demonstrate your API creation skills.
Join thousands who transformed their careers with AI-powered resumes that pass ATS and impress hiring managers.
3 out of 4 resumes never reach a human eye. Our keyword optimization increases your pass rate by up to 80%, ensuring recruiters actually see your potential.